Borg BL5771MGPROECP Mechanical Digital Lock - Back-to-Back Levers - Key Override Both Sides - Easicode Pro - Black
At A Glance
At A Glance
PIN Code - Both Sides
Key Override - Both SidesThe Borg BL5771MGPROECP is the most capable back-to-back lock in the Borg mechanical digital range: full-size clutched lever handles, Easicode Pro keypads on both sides of the door, and a key override built into both keypads - a combination no other back-to-back mechanical digital lock in our catalogue offers. The Silca YA5 6-pin euro cylinder and its keys are in the box, so the lock installs complete. Fully mechanical throughout: no batteries, no wiring, nothing to power.
Construction is Marine Grade Pro - 316 stainless steel internal components under Borg's harder-wearing MG Pro 2 black coating, salt spray tested to 1,000 hours and cycle tested past 100,000 operations. It suits external doors, coastal sites and secure gates where code control in both directions is required and a keyholder still needs a guaranteed way through. Because a code or a key is needed to get out, it is not for fire doors or fire egress doors, nor for emergency exit doors; the single-sided BL5701 keeps the key override with a free inside lever. It is a special order: contact us for the lead time before you order. Part of the Digital Mechanical Locks range - see the Borg, Lockwood and Carbine lineup and the Borg brand profile for the wider picture.
Special Order - Non-Returnable Item
The BL5771MGPROECP is brought in to order and cannot be returned, so contact us for the current lead time before ordering - we confirm it with Borg's Australian distributor at the time. Confirm the specification with us too: handing, door thickness (35-54mm on the supplied fixings), keying requirements for the two override cylinders and the single black finish. Questions are welcome before purchase; it is quicker than a return that cannot happen.
The BL5771MGPROECP is brought in to order and cannot be returned, so contact us for the current lead time before ordering - we confirm it with Borg's Australian distributor at the time. Confirm the specification with us too: handing, door thickness (35-54mm on the supplied fixings), keying requirements for the two override cylinders and the single black finish. Questions are welcome before purchase; it is quicker than a return that cannot happen.
Key Override Both Sides - Cylinder and Keys Included
The key override mechanism is built into both keypads, and the Silca YA5 6-pin euro cylinder ships in the box with its keys - the lock installs complete. Sites running a master key system can have a locksmith re-pin the supplied cylinder or key it alike with existing doors; we can arrange keying before dispatch - ask when ordering. Read our guide to how mechanical key override works, or browse all locks with a key override.
The key override mechanism is built into both keypads, and the Silca YA5 6-pin euro cylinder ships in the box with its keys - the lock installs complete. Sites running a master key system can have a locksmith re-pin the supplied cylinder or key it alike with existing doors; we can arrange keying before dispatch - ask when ordering. Read our guide to how mechanical key override works, or browse all locks with a key override.
Not for Fire Doors, Emergency Exit or Fire Egress Doors
This back-to-back lock needs a code or a key to get out: full keypads with key override sit on both faces, and neither lever will withdraw the latch until the correct PIN is entered or the key is turned. It is not for fire doors, and not for emergency exit or fire egress doors; see exit paths on double-sided locks. If free inside egress is required with a key override, choose the single-sided Borg BL5701 - the same BL5700 series keypad outside with an inside flat bar lever that always opens. For a fire door, the BL5001 and the DDA BL5401SSDDA are tested to AS 1905.1-2005; browse our fire door rated lock range.
This back-to-back lock needs a code or a key to get out: full keypads with key override sit on both faces, and neither lever will withdraw the latch until the correct PIN is entered or the key is turned. It is not for fire doors, and not for emergency exit or fire egress doors; see exit paths on double-sided locks. If free inside egress is required with a key override, choose the single-sided Borg BL5701 - the same BL5700 series keypad outside with an inside flat bar lever that always opens. For a fire door, the BL5001 and the DDA BL5401SSDDA are tested to AS 1905.1-2005; browse our fire door rated lock range.
Marine Grade Pro - 1,000 Hours Salt Spray Tested
316 stainless steel internal components and a stainless steel coding chamber, finished in MG Pro 2 - Borg's hardest-wearing external coating - and salt spray tested to 1,000 continuous hours. That is a laboratory cabinet result (the finish held up that long in continuous salt fog), not a promise of service life on the coast, which is why the maintenance routine below matters. Suitable for coastal and exposed external installations where the chrome plate external grade BL5051MGECP is not. The grading ladder is in MG Pro and ECP Explained, and the three-brand corrosion comparison is in Lockwood vs Borg vs Carbine.
316 stainless steel internal components and a stainless steel coding chamber, finished in MG Pro 2 - Borg's hardest-wearing external coating - and salt spray tested to 1,000 continuous hours. That is a laboratory cabinet result (the finish held up that long in continuous salt fog), not a promise of service life on the coast, which is why the maintenance routine below matters. Suitable for coastal and exposed external installations where the chrome plate external grade BL5051MGECP is not. The grading ladder is in MG Pro and ECP Explained, and the three-brand corrosion comparison is in Lockwood vs Borg vs Carbine.
Corrosion Resistance Warranted - 12 Months
Borg warrants corrosion resistance on the Marine Grade Pro finish for 12 months from date of sale under specified conditions - the routine in the maintenance notes keeps those conditions met; see the warranty details.
Borg warrants corrosion resistance on the Marine Grade Pro finish for 12 months from date of sale under specified conditions - the routine in the maintenance notes keeps those conditions met; see the warranty details.
Easicode Pro - Change Either Code on the Door
With Easicode Pro (ECP) the lock stays on the door - Borg puts the change at about 10 seconds per keypad. With the door open, enter that side's current code, put the change key over the code change button at the top of the keypad, turn it 90 degrees clockwise and hold it in, press C, then enter the new code twice. Release the key, turn it back and remove it, then press C or turn the lever to set the new code - and test it five times before the door closes. Each keypad is changed separately, so the two sides can run the same code or different ones. The change key is in the box (a spare is the BL5000ECPCK), and so are two code change deactivation plugs, which stop anyone re-coding a keypad on the door once your codes are set. Step by step in how the Borg on-door change works. Never force the change key - here is why.
With Easicode Pro (ECP) the lock stays on the door - Borg puts the change at about 10 seconds per keypad. With the door open, enter that side's current code, put the change key over the code change button at the top of the keypad, turn it 90 degrees clockwise and hold it in, press C, then enter the new code twice. Release the key, turn it back and remove it, then press C or turn the lever to set the new code - and test it five times before the door closes. Each keypad is changed separately, so the two sides can run the same code or different ones. The change key is in the box (a spare is the BL5000ECPCK), and so are two code change deactivation plugs, which stop anyone re-coding a keypad on the door once your codes are set. Step by step in how the Borg on-door change works. Never force the change key - here is why.
Free Passage - the F Button, Set Per Side
Enter the code, turn the lever and press F: that side's lever stays free turning and withdraws the latch, so the door opens from that side without a code - handy for business hours or a move-in day. Each side is set independently, so the outside can stay on code while the inside runs free. To lock a side again, turn its lever and press C; you will hear a click as the coding chamber resets. It is not a holdback - the latch still engages when the door closes. If you never want the function, the free passage deactivation plugs in the box fit into the F slot on the back of each keypad and switch it off until the keypad is taken off the door. Passage mode explained and why it is never left engaged on a pool barrier gate.
Enter the code, turn the lever and press F: that side's lever stays free turning and withdraws the latch, so the door opens from that side without a code - handy for business hours or a move-in day. Each side is set independently, so the outside can stay on code while the inside runs free. To lock a side again, turn its lever and press C; you will hear a click as the coding chamber resets. It is not a holdback - the latch still engages when the door closes. If you never want the function, the free passage deactivation plugs in the box fit into the F slot on the back of each keypad and switch it off until the keypad is taken off the door. Passage mode explained and why it is never left engaged on a pool barrier gate.
Fully Mechanical - No Batteries Required
The BL5771MGPROECP is entirely mechanical on both sides. No power source, no wiring, no battery compartment and no battery maintenance at any point in the lock's service life - a real advantage on an exposed gate or external door where battery changes are an ongoing cost on electronic alternatives. See why mechanical digital locks are chosen for critical access points.
The BL5771MGPROECP is entirely mechanical on both sides. No power source, no wiring, no battery compartment and no battery maintenance at any point in the lock's service life - a real advantage on an exposed gate or external door where battery changes are an ongoing cost on electronic alternatives. See why mechanical digital locks are chosen for critical access points.
Designed for medium to heavy usage areas
Secure compound and plant-room gates, coastal external doors, keyed-alike facilities and managed sites where code control in both directions is wanted. Borg cycle tests the series to 100,000 operations, and the clutched levers protect the mechanism from forced-entry leverage. See our commercial mechanical digital lock guide.
Secure compound and plant-room gates, coastal external doors, keyed-alike facilities and managed sites where code control in both directions is wanted. Borg cycle tests the series to 100,000 operations, and the clutched levers protect the mechanism from forced-entry leverage. See our commercial mechanical digital lock guide.
Not recommended for extremely high traffic without a servicing schedule
For genuinely heavy duty, high traffic doors consider the dual keypad Carbine CDL7200LL-KDSC-HD, the single-sided Borg BL7701 (SFIC key override) or the Lockwood 3572DX - our high traffic guide explains what separates them.
For genuinely heavy duty, high traffic doors consider the dual keypad Carbine CDL7200LL-KDSC-HD, the single-sided Borg BL7701 (SFIC key override) or the Lockwood 3572DX - our high traffic guide explains what separates them.
One PIN Code Per Keypad
Each keypad holds one active PIN code at a time - everyone using that side shares the same code, and there is no audit trail. The two keypads are independent, so the outside and inside codes can differ, but that is still two codes, not a user list. The key override gives a second, independent way through without sharing a code. If you need individual user codes or access records, a smart lock is the right tool instead - our honest limitations rundown covers the trade-off.
Each keypad holds one active PIN code at a time - everyone using that side shares the same code, and there is no audit trail. The two keypads are independent, so the outside and inside codes can differ, but that is still two codes, not a user list. The key override gives a second, independent way through without sharing a code. If you need individual user codes or access records, a smart lock is the right tool instead - our honest limitations rundown covers the trade-off.
Key Features
- Back-to-back keypads with key override both sides - a code or a key operates the door from either direction. The only back-to-back configuration in the range with a keyholder bypass built into both faces.
- Silca YA5 6-pin euro override cylinder and keys included - the lock installs complete; re-pin or key alike to join an existing system.
- Easicode Pro on-door code change on each keypad - about 10 seconds per side with the supplied change key, no lock removal; code change deactivation plugs included.
- Clutched lever handles - without the correct code or key the lever free-spins instead of transmitting force to the latch, protecting the mechanism from forced-entry leverage and casual abuse.
- Free passage function per side - hold a side unlocked when access control is not needed; removable with the included plugs if never wanted.
- Marine Grade Pro construction: 316 stainless steel internals and a 1,000 hour salt spray tested MG Pro 2 black finish; corrosion resistance warranted 12 months.
- Cycle tested to 100,000+ operations - medium to heavy duty rated.
- 60mm backset heavy duty tubular latch with 12.5mm bolt and anti-thrust pin to resist forced retraction ("carding").
- Over 1,000 any-order code combinations per keypad - the digits open the lock in any order.
- Large indented stainless steel buttons - positive feel, easy to read, easy to press.
- Fully reversible on site for left or right hand doors.
- Door thickness 35mm to 54mm on the supplied fixings.
- Not for fire doors, emergency exit or fire egress doors - a code or key is needed to exit.
- Fully mechanical - no batteries, no wiring, no electronics anywhere in the lock.
- Special order - non-returnable; contact us for the lead time.
Access Methods
This is a back-to-back mechanical digital lock with two ways through from either side - the keypad and the key override built into it. There is no free inside lever, no app, fob or card: that is not what this category is. Browse all locks with a key override.
Exiting needs the code or a key - there is no free inside lever. Where unrestricted free egress from the inside is a requirement (most habitable buildings), the single-sided BL5701 keeps the key override with a free inside lever. Exit paths explained.
What's in the Box
- External keypad and lever assembly with built-in key override (MG Pro 2 black)
- Internal keypad and lever assembly with built-in key override (MG Pro 2 black)
- 60mm heavy duty tubular latch (12.5mm bolt, anti-thrust pin)
- Strike plate and box keep
- Silca YA5 6-pin euro override cylinder (fitted)
- Keys for the override cylinder
- 8mm square drive spindle
- Easicode Pro code change key
- Code change deactivation plugs (optional fit)
- Free passage deactivation plugs (optional fit)
- Fixings and installation hardware
- Installation instructions
The override cylinder and keys are included - the lock installs complete out of the box; see the cylinder note for keyed-alike options. A 70mm backset latch is available separately - the black MG Pro BLSMGPRO570 under Accessories and Spare Parts below. No batteries, wiring or electronic components are required or supplied.
Suitable Uses
- External and coastal doors and gates needing code control from both directions with a guaranteed keyholder bypass - see External Gate - Exposed to Rain
- Secure compound and plant-room gates where a reach-over defeat of a single-sided keypad is a live risk - see why double-sided keypads close it
- Facilities keyed alike site-wide: supervisors carry one key for every door while day users work on codes - the approach the BL5700 series was designed around
- Strata, holiday lets and managed sites where codes rotate between occupants and the on-door ECP change avoids a locksmith visit each time
- Marine and poolside environments the external grade chrome BL5051MGECP cannot serve - this is the marine-rated back-to-back
- Timber, composite and steel doors and gates 35-54mm thick where code and key access are wanted from both sides
- Not for fire doors, emergency exit or fire egress doors - a code or key is needed to exit; the BL5701 gives free inside egress with a key override, and the BL5001 is the fire tested lever lock
Available Finish Options
Black - Marine Grade Pro 2
(This Product)
BL5771MGPROECP
Finish selection does not affect functionality, compliance, or performance. The marine grade back-to-back with key override comes in MG Pro 2 black only. For a chrome plate back-to-back (external grade, no override) see the BL5051MGECP; for a marine grade back-to-back without override, the BL5051MGPROECP.
Back-to-Back and Key Override Options Compared
How the BL5771MGPROECP sits against the other back-to-back and key override locks in the range. The columns that decide the choice: key override, weather grade, the code change method and egress.
Related marine ECP gate hardware: the BL3400DKOMGPROECP gate lock with anti-climb case covers exposed gates needing a shrouded case; the back-to-back gate locks BL3430DKOMGPROECP and BL3430DKOGATE carry a double key override on the forend-fixed gate body; and the BL4441MGPROECP is the lever/lever back-to-back gate lock without override. The BL5701KSCECP keypad-only unit retrofits a key override keypad onto a third party lockcase.
Accessories and Spare Parts - BL5700 and BL5000 Series
The BL5771 shares the BL5000 platform's deep spares ecosystem - latches, plates, gaskets and a spare change key are all separately orderable. It is a big part of why this range outlasts hardware store imitations.
Need the cylinder keyed alike or into a master key system, or unsure which part suits your unit? Contact us before you order - it is quicker than a return.
Full Specifications
Dimensions
BL5700 series keypad, both sides: 178mm H x 48mm W x 26mm D, 129.4mm lever, 76.8mm projection. The back-to-back uses the same keypad on both faces, so one drawing covers both; the latch drawing and full-width copies are in the Dimensions tab.
External and inside keypads - BL5700 series (178mm H x 48mm W x 26mm D; 129.4mm lever; 76.8mm projection)
Frequently Asked Questions
Does this lock come with the key override cylinder?
Yes - the Silca YA5 6-pin euro cylinder and its keys are included, so the lock installs complete. If your site runs a master key system, a locksmith can re-pin the supplied cylinder or key it alike with your existing doors; we can arrange keying before dispatch - ask when ordering.
Yes - the Silca YA5 6-pin euro cylinder and its keys are included, so the lock installs complete. If your site runs a master key system, a locksmith can re-pin the supplied cylinder or key it alike with your existing doors; we can arrange keying before dispatch - ask when ordering.
Why choose this over the BL5051 back-to-back models?
Key override. The BL5051MGPROECP and BL5051MGECP are code-only in both directions - a forgotten code on a closed door means a locksmith. The BL5771MGPROECP adds a cylinder bypass on both faces, so a keyholder always has a way through. On a keyed-alike site, supervisors move through every door on one key while day users work on codes.
Key override. The BL5051MGPROECP and BL5051MGECP are code-only in both directions - a forgotten code on a closed door means a locksmith. The BL5771MGPROECP adds a cylinder bypass on both faces, so a keyholder always has a way through. On a keyed-alike site, supervisors move through every door on one key while day users work on codes.
How are codes changed?
On the door with the 5000 series Easicode Pro procedure: enter the current code, engage the code change key, clear with C, enter the new code twice, then release the key and press C or turn the lever to set it. Each keypad is changed separately. Test five times before closing the door. Full illustrated steps in the BL5000 ECP User Manual (PDF).
On the door with the 5000 series Easicode Pro procedure: enter the current code, engage the code change key, clear with C, enter the new code twice, then release the key and press C or turn the lever to set it. Each keypad is changed separately. Test five times before closing the door. Full illustrated steps in the BL5000 ECP User Manual (PDF).
Is it suitable for coastal installations?
Yes - this is the marine tier. 316 stainless steel internals and the MG Pro 2 coating, salt spray tested to 1,000 hours - a laboratory result, which is why Borg backs the finish with a 12 month corrosion warranty rather than vague claims. For sheltered non-coastal sites the chrome plate BL5051MGECP is the economical alternative (without override). Guidance: do you need MG Pro?
Yes - this is the marine tier. 316 stainless steel internals and the MG Pro 2 coating, salt spray tested to 1,000 hours - a laboratory result, which is why Borg backs the finish with a 12 month corrosion warranty rather than vague claims. For sheltered non-coastal sites the chrome plate BL5051MGECP is the economical alternative (without override). Guidance: do you need MG Pro?
Can it go on a fire door or an exit door?
No. A code or key is needed to get out from either side, so it is not for fire doors, emergency exit or fire egress doors. For a fire door the BL5001 is tested to AS 1905.1-2005; for free inside egress with a key override, the single-sided BL5701. Our exit paths guide covers the egress question on double-sided locks.
No. A code or key is needed to get out from either side, so it is not for fire doors, emergency exit or fire egress doors. For a fire door the BL5001 is tested to AS 1905.1-2005; for free inside egress with a key override, the single-sided BL5701. Our exit paths guide covers the egress question on double-sided locks.
Can the door be left open-access at busy times?
Yes - the free passage function holds a side unlocked so no code is needed, engaged and released per side. See how passage mode works. Never leave it engaged on a pool barrier gate, where self-latching is mandatory. If the function will never be used, the included plugs remove it permanently.
Yes - the free passage function holds a side unlocked so no code is needed, engaged and released per side. See how passage mode works. Never leave it engaged on a pool barrier gate, where self-latching is mandatory. If the function will never be used, the included plugs remove it permanently.
Additional Information
Maintenance:
Monthly: wipe both keypads, both levers and the exposed latch with a light spray of silicon-based lubricant (such as GT85) and remove the excess with a soft cloth. Do not use oil-based lubricants such as WD-40 - they attract dirt and wear down internal parts over time. In direct salt spray zones, rinse the external surfaces with fresh water periodically. Annually: remove each keypad from the door, spray the inside through the button holes on the reverse with silicon-based lubricant, spray all fixings, the cylinder and the latch, then press each button and operate both levers several times to confirm smooth operation. The routine keeps the corrosion warranty conditions met. Full steps are in the Borg Lock Servicing Guide (PDF); why internals decide lifespan: build quality vs imitations.
Monthly: wipe both keypads, both levers and the exposed latch with a light spray of silicon-based lubricant (such as GT85) and remove the excess with a soft cloth. Do not use oil-based lubricants such as WD-40 - they attract dirt and wear down internal parts over time. In direct salt spray zones, rinse the external surfaces with fresh water periodically. Annually: remove each keypad from the door, spray the inside through the button holes on the reverse with silicon-based lubricant, spray all fixings, the cylinder and the latch, then press each button and operate both levers several times to confirm smooth operation. The routine keeps the corrosion warranty conditions met. Full steps are in the Borg Lock Servicing Guide (PDF); why internals decide lifespan: build quality vs imitations.
Planning the Override Cylinders Before Installation:
Decide the keying before install day so the lock goes on complete. On keyed-alike sites, give the cylinder schedule to your locksmith with the rest of the master system - the override is only as managed as the keys that operate it. We can key the supplied cylinder before dispatch; ask when ordering.
Decide the keying before install day so the lock goes on complete. On keyed-alike sites, give the cylinder schedule to your locksmith with the rest of the master system - the override is only as managed as the keys that operate it. We can key the supplied cylinder before dispatch; ask when ordering.
What the Clutched Levers Actually Do:
Force applied to a lever without a valid code (or key) spins the handle freely instead of loading the latch mechanism - would-be forced entry gets no leverage, and the mechanism is protected from damage. The lever engages the latch only after a correct code or the key override is presented. If a lever spins after a correct code, re-enter with C first; persistent free-spin after correct entry warrants a service check.
Force applied to a lever without a valid code (or key) spins the handle freely instead of loading the latch mechanism - would-be forced entry gets no leverage, and the mechanism is protected from damage. The lever engages the latch only after a correct code or the key override is presented. If a lever spins after a correct code, re-enter with C first; persistent free-spin after correct entry warrants a service check.
Fire Doors and Exit Doors:
A back-to-back lock needs a code or key to exit, so this lock is not for fire doors, emergency exit or fire egress doors. Borg's fire tested lever locks are the BL5001 and the DDA BL5401SSDDA, tested to AS 1905.1-2005 up to 4 hours depending on the type of doorset. On an apartment fire door, read our compliance guide before anyone drills.
A back-to-back lock needs a code or key to exit, so this lock is not for fire doors, emergency exit or fire egress doors. Borg's fire tested lever locks are the BL5001 and the DDA BL5401SSDDA, tested to AS 1905.1-2005 up to 4 hours depending on the type of doorset. On an apartment fire door, read our compliance guide before anyone drills.
Testing the New Code - Do Not Close the Door Until You Have Tested:
After any Easicode Pro code change, test the new code at least five times before closing the door - on each keypad you changed. The change is confirmed only when the lever operates on the new code. If the change was unsuccessful and the door closes, the key override gets you through - one more reason to keep the keys somewhere sensible. The safe testing procedure is in our code change guide.
After any Easicode Pro code change, test the new code at least five times before closing the door - on each keypad you changed. The change is confirmed only when the lever operates on the new code. If the change was unsuccessful and the door closes, the key override gets you through - one more reason to keep the keys somewhere sensible. The safe testing procedure is in our code change guide.
Warranty
Borg Locks Warranty - 12 Months (Australia)
All Borg locks are warranted against mechanical defects in materials and workmanship under normal use and service for a minimum of 12 months from date of sale. The warranty does not cover damage arising from misuse, vandalism, or improper installation. The lock must not be dismantled - doing so will invalidate the warranty. Proof of purchase required for all claims.
All Borg locks are warranted against mechanical defects in materials and workmanship under normal use and service for a minimum of 12 months from date of sale. The warranty does not cover damage arising from misuse, vandalism, or improper installation. The lock must not be dismantled - doing so will invalidate the warranty. Proof of purchase required for all claims.
Purchased through Terry's Tradies Pty Ltd or one of its associated trading names? Contact us first - we will manage your warranty claim with the Australian distributor (LSC) on your behalf. This warranty operates alongside your rights under the Australian Consumer Law.
Download PDF Resources
Borg BL5000 MG Pro ECP Series Brochure (PDF)
Borg's two-page marine grade Easicode Pro brochure covering the BL5771 MG Pro ECP - MG Pro 2 black finish, 1,000 hour salt spray and 100,000 cycle testing, over 1,000 combinations, the back-to-back and key override options, technical information and dimensioned keypad and inside handle drawings.
Borg's two-page marine grade Easicode Pro brochure covering the BL5771 MG Pro ECP - MG Pro 2 black finish, 1,000 hour salt spray and 100,000 cycle testing, over 1,000 combinations, the back-to-back and key override options, technical information and dimensioned keypad and inside handle drawings.
Borg BL5700 ECP Series Brochure (PDF)
Borg's two-page brochure for the BL5700 ECP key override series - the BL5700 keypad, the BL5701 and this back-to-back BL5771 - features, lock options, fixings and dimensioned drawings, with the hospitals and key-alike positioning.
Borg's two-page brochure for the BL5700 ECP key override series - the BL5700 keypad, the BL5701 and this back-to-back BL5771 - features, lock options, fixings and dimensioned drawings, with the hospitals and key-alike positioning.
Borg BL5000 ECP User Manual and Code Change Instructions (PDF)
Borg's six-page manual for the BL5000 series Easicode Pro locks, the BL5700 key override models included - handing (the BL5700 key override keypad has its own procedure), the free passage and code change deactivation plugs, spindle fitting, the on-door code change, daily use and how to find a lost code.
Borg's six-page manual for the BL5000 series Easicode Pro locks, the BL5700 key override models included - handing (the BL5700 key override keypad has its own procedure), the free passage and code change deactivation plugs, spindle fitting, the on-door code change, daily use and how to find a lost code.
Borg BL5000 ECP Instruction Segments (PDF)
The same Easicode Pro instructions as six one-page segments - preparation and handing, the deactivation plugs, spindle fitting (the 15mm blade engagement rule), the code change, daily operation and identifying a lost code.
The same Easicode Pro instructions as six one-page segments - preparation and handing, the deactivation plugs, spindle fitting (the 15mm blade engagement rule), the code change, daily operation and identifying a lost code.
Borg BL5001, BL5201 and BL5401 Drilling Template (PDF)
One-page drilling template for the BL5000 platform tubular latch locks - 159mm hole centres with 60mm or 70mm backset marks for the through-door and latch preparation. Named for the BL5001, BL5201 and BL5401 in its text; the BL5771 shares the preparation on both faces.
One-page drilling template for the BL5000 platform tubular latch locks - 159mm hole centres with 60mm or 70mm backset marks for the through-door and latch preparation. Named for the BL5001, BL5201 and BL5401 in its text; the BL5771 shares the preparation on both faces.
Borg Lock Servicing Guide (PDF)
Borg's general maintenance guide for pushbutton keypad locks - monthly silicone-based lubricant care and an annual full service. This is the routine to follow for this lock.
Borg's general maintenance guide for pushbutton keypad locks - monthly silicone-based lubricant care and an annual full service. This is the routine to follow for this lock.
Borg BL5771MGPROECP - FAQ, Setup and Owner's Guide
Everything owners, installers and specifiers ask about the BL5771MGPROECP marine grade back-to-back key override lock. Wider context: Mechanical Digital Locks Buyer's Guide chapter and what is a mechanical digital lock.
Key Override and Cylinder
What cylinder does the key override use, and is it included?
A Silca YA5 6-pin euro profile cylinder - included in the box along with its keys, so the lock installs complete. The 6-pin YA5 platform supports proper keyed-alike and master-system work: have a locksmith re-pin the supplied cylinder to join an existing system, or ask us to key it before dispatch.
A Silca YA5 6-pin euro profile cylinder - included in the box along with its keys, so the lock installs complete. The 6-pin YA5 platform supports proper keyed-alike and master-system work: have a locksmith re-pin the supplied cylinder to join an existing system, or ask us to key it before dispatch.
Is the key override really on both sides?
Yes - the override mechanism is built into both the external and internal keypads. A keyholder can enter or exit regardless of codes. That makes this the only back-to-back lock in the range with a keyed bypass in both directions - the BL5051MGPROECP and BL5051MGECP back-to-back models are code-only.
Yes - the override mechanism is built into both the external and internal keypads. A keyholder can enter or exit regardless of codes. That makes this the only back-to-back lock in the range with a keyed bypass in both directions - the BL5051MGPROECP and BL5051MGECP back-to-back models are code-only.
What happens if the code is forgotten?
Nothing dramatic - that is the point of the override. Use the key, then reset the code at your convenience with the ECP procedure. Without a key present, the lost-code porthole method in the user manual (PDF) recovers the code once the keypad is off the door - turn it over, press C, and the ten portholes on the back show the coded buttons as red lines.
Nothing dramatic - that is the point of the override. Use the key, then reset the code at your convenience with the ECP procedure. Without a key present, the lost-code porthole method in the user manual (PDF) recovers the code once the keypad is off the door - turn it over, press C, and the ten portholes on the back show the coded buttons as red lines.
Does the key override weaken security?
It changes the risk model rather than weakening it. A code-only lock fails hard (lost code means a locksmith) but has no cylinder to pick or bump; a key override lock adds a physical bypass that must be managed like any keyed door - restricted profile, controlled cutting, a key register on commercial sites. The YA5 6-pin platform supports proper key management. Key override on commercial digital locks explained.
It changes the risk model rather than weakening it. A code-only lock fails hard (lost code means a locksmith) but has no cylinder to pick or bump; a key override lock adds a physical bypass that must be managed like any keyed door - restricted profile, controlled cutting, a key register on commercial sites. The YA5 6-pin platform supports proper key management. Key override on commercial digital locks explained.
Codes and Code Change
How do I change a code, step by step?
On the door, with it open: enter the current code, put the code change key over the code change button, turn it 90 degrees clockwise and hold it in. Press C to clear, enter the new code, then enter it again to confirm. Release the key, turn it back and remove it, then press C or turn the lever to set the new code. Repeat on the other keypad if both sides are changing. Test at least five times with the door open. Illustrated: the 3000/5000 series ECP steps and the BL5000 ECP User Manual (PDF).
On the door, with it open: enter the current code, put the code change key over the code change button, turn it 90 degrees clockwise and hold it in. Press C to clear, enter the new code, then enter it again to confirm. Release the key, turn it back and remove it, then press C or turn the lever to set the new code. Repeat on the other keypad if both sides are changing. Test at least five times with the door open. Illustrated: the 3000/5000 series ECP steps and the BL5000 ECP User Manual (PDF).
The new code does not work after a change - what went wrong?
Usually C was skipped between old and new codes, leaving the chamber set to both codes combined - try entering old and new digits together, then rerun the change from the start. If the lever free-spins after a change, no code was set: repeat from key insertion. The key override gets you through in the meantime.
Usually C was skipped between old and new codes, leaving the chamber set to both codes combined - try entering old and new digits together, then rerun the change from the start. If the lever free-spins after a change, no code was set: repeat from key insertion. The key override gets you through in the meantime.
Do buttons have to be pressed in order?
No - the chamber is non-sequential, so 1234 also opens with 4321 or any other order of the same digits. Any-order codes explained. Over 1,000 combinations per keypad.
No - the chamber is non-sequential, so 1234 also opens with 4321 or any other order of the same digits. Any-order codes explained. Over 1,000 combinations per keypad.
Can I stop staff or tenants changing codes?
Yes - fit the included code change deactivation plug into the marked recess on the back of a keypad before installation; on-door change is then permanently disabled for that side until the unit comes off the door. Useful where only management should rotate codes.
Yes - fit the included code change deactivation plug into the marked recess on the back of a keypad before installation; on-door change is then permanently disabled for that side until the unit comes off the door. Useful where only management should rotate codes.
Operation and Free Passage
What is the correct daily operating habit?
Press C first to clear any part-pressed buttons, enter the code, operate the lever. The clutch re-engages when the lever is released and the door is secured behind you. Teach the C-first habit to every user - it eliminates the most common "code stopped working" call-out.
Press C first to clear any part-pressed buttons, enter the code, operate the lever. The clutch re-engages when the lever is released and the door is secured behind you. Teach the C-first habit to every user - it eliminates the most common "code stopped working" call-out.
How does free passage work on a back-to-back lock?
Enter the code, rotate the lever, press F while rotated - that side is now free-turning without a code. Restore with the lever rotated and C pressed until it clicks. Each side is set independently, so the outside can stay on code while the inside runs free during business hours. Passage mode explained; when to use it.
Enter the code, rotate the lever, press F while rotated - that side is now free-turning without a code. Restore with the lever rotated and C pressed until it clicks. Each side is set independently, so the outside can stay on code while the inside runs free during business hours. Passage mode explained; when to use it.
Where must free passage not be used?
On pool barrier gates, where self-latching is mandatory - and remember the lock itself is not for fire doors or exit doors at all, passage mode or not. If passage will never be wanted, fit the included plugs and the function is permanently deleted.
On pool barrier gates, where self-latching is mandatory - and remember the lock itself is not for fire doors or exit doors at all, passage mode or not. If passage will never be wanted, fit the included plugs and the function is permanently deleted.
Fire, Egress and Compliance
Can people always get out from the inside?
Only with the code or a key - there is no free inside lever on this model, which is why it is not for fire doors, emergency exit or fire egress doors. Confirm the egress arrangement complies with the requirements for your building class before specifying; on habitable buildings a free-egress model like the single-sided BL5701 is usually the compliant choice. Exit paths and digital locks; egress on double-sided gates.
Only with the code or a key - there is no free inside lever on this model, which is why it is not for fire doors, emergency exit or fire egress doors. Confirm the egress arrangement complies with the requirements for your building class before specifying; on habitable buildings a free-egress model like the single-sided BL5701 is usually the compliant choice. Exit paths and digital locks; egress on double-sided gates.
Is the BL5771MGPROECP fire rated?
No, and it is not for fire doors regardless - a code or key is needed to exit. The fire tested lever locks on the BL5000 platform are the BL5001 (AS 1905.1-2005, up to 4 hours depending on the type of doorset) and the DDA BL5401SSDDA; neither has a key override. Browse our fire door rated locks and read the commercial fire door guide.
No, and it is not for fire doors regardless - a code or key is needed to exit. The fire tested lever locks on the BL5000 platform are the BL5001 (AS 1905.1-2005, up to 4 hours depending on the type of doorset) and the DDA BL5401SSDDA; neither has a key override. Browse our fire door rated locks and read the commercial fire door guide.
Installation and Setup
Can I reverse the levers for my door?
Yes, on site, both sides. The BL5700 series key override keypads have grey rubber grommets on both the top and bottom of the handle: remove both to expose two grub screws, back them out with the supplied hex wrench, lift the handle off, turn it 180 degrees, refit and retighten, then replace the grommets. Follow the BL5700 key override procedure in the ECP Instruction Segments V2 (PDF), not the standard BL5000 one.
Yes, on site, both sides. The BL5700 series key override keypads have grey rubber grommets on both the top and bottom of the handle: remove both to expose two grub screws, back them out with the supplied hex wrench, lift the handle off, turn it 180 degrees, refit and retighten, then replace the grommets. Follow the BL5700 key override procedure in the ECP Instruction Segments V2 (PDF), not the standard BL5000 one.
What door thickness does it fit?
This listing suits 35-54mm doors on the supplied fixings. If your door is thicker, contact us before ordering - do not assume longer screws will do it on a back-to-back with two cylinders to align.
This listing suits 35-54mm doors on the supplied fixings. If your door is thicker, contact us before ordering - do not assume longer screws will do it on a back-to-back with two cylinders to align.
What latch does it come with, and are there options?
A 60mm backset heavy duty tubular latch with a 12.5mm bolt and an anti-thrust pin that blocks the "carding" attack (forcing the bolt back with a blade). A 70mm backset version is the black MG Pro BLSMGPRO570. Latch formats compared: latch vs bolt and why self-latching matters on controlled doors.
A 60mm backset heavy duty tubular latch with a 12.5mm bolt and an anti-thrust pin that blocks the "carding" attack (forcing the bolt back with a blade). A 70mm backset version is the black MG Pro BLSMGPRO570. Latch formats compared: latch vs bolt and why self-latching matters on controlled doors.
Anything to know about the spindle?
An 8mm square drive spindle is supplied. Fit per the manual - seat it fully into both assemblies (at least 15mm each side) and never cut it shorter than necessary; an over-trimmed spindle can shift under a door slam and cause a lockout. On this lock, cutting also has to respect the key override engagement in both keypads, so trim conservatively.
An 8mm square drive spindle is supplied. Fit per the manual - seat it fully into both assemblies (at least 15mm each side) and never cut it shorter than necessary; an over-trimmed spindle can shift under a door slam and cause a lockout. On this lock, cutting also has to respect the key override engagement in both keypads, so trim conservatively.
Can it go on a gate?
Yes - marine construction suits exposed gates, and back-to-back keypads with a keyed bypass are a strong gate combination (why double-sided suits gates). On a steel gate, the LB22 weld-on lock box carries a 5000 series lock at 60mm backset. For gates needing an enclosed anti-climb case around the mechanism, the BL3400DKOMGPROECP gate lock is purpose-built.
Yes - marine construction suits exposed gates, and back-to-back keypads with a keyed bypass are a strong gate combination (why double-sided suits gates). On a steel gate, the LB22 weld-on lock box carries a 5000 series lock at 60mm backset. For gates needing an enclosed anti-climb case around the mechanism, the BL3400DKOMGPROECP gate lock is purpose-built.
Weather, Duty and Care
What does Marine Grade Pro actually mean?
316 stainless steel internal components plus the MG Pro 2 external coating - Borg's hardest-wearing finish - salt spray tested to 1,000 hours and cycle tested past 100,000 operations. The full breakdown: MG Pro 2 explained and whether your site needs it. Brand comparison: Lockwood vs Borg vs Carbine on corrosion.
316 stainless steel internal components plus the MG Pro 2 external coating - Borg's hardest-wearing finish - salt spray tested to 1,000 hours and cycle tested past 100,000 operations. The full breakdown: MG Pro 2 explained and whether your site needs it. Brand comparison: Lockwood vs Borg vs Carbine on corrosion.
Is it heavy duty enough for a main commercial entry?
It is rated medium to heavy duty at 100,000+ cycles - real commercial capability. For extremely high traffic (hundreds of cycles daily) or where servicing cannot be guaranteed, step up to the dual keypad Carbine CDL7200LL-KDSC-HD, the Lockwood 3572DX or the single-sided Borg BL7701 - the high-traffic tier explained and what the internals difference is.
It is rated medium to heavy duty at 100,000+ cycles - real commercial capability. For extremely high traffic (hundreds of cycles daily) or where servicing cannot be guaranteed, step up to the dual keypad Carbine CDL7200LL-KDSC-HD, the Lockwood 3572DX or the single-sided Borg BL7701 - the high-traffic tier explained and what the internals difference is.
What maintenance keeps it in warranty and working?
Monthly, a light wipe of both keypads, the levers and the exposed latch with a silicon-based lubricant (such as GT85) - never an oil-based lubricant such as WD-40, which draws grit into the coding chamber. In direct salt zones rinse with fresh water periodically. Once a year, take each keypad off the door, spray through the button holes on the back and over the fixings, cylinder and latch, then check every button and both levers. Renew the gaskets whenever the lock comes off the door. Full schedule: the Borg Servicing Guide (PDF).
Monthly, a light wipe of both keypads, the levers and the exposed latch with a silicon-based lubricant (such as GT85) - never an oil-based lubricant such as WD-40, which draws grit into the coding chamber. In direct salt zones rinse with fresh water periodically. Once a year, take each keypad off the door, spray through the button holes on the back and over the fixings, cylinder and latch, then check every button and both levers. Renew the gaskets whenever the lock comes off the door. Full schedule: the Borg Servicing Guide (PDF).
Related Products, Guides and Chapters
Back-to-back family: BL5051MGPROECP (marine, no override) - BL5051MGECP (external grade) - BL5051 (On The Bench, 3 finishes) - BL5050SC (euro mortice, key lockout) - BL5151SC (knob and lever keypads)
Key override: BL5701 (single-sided, free inside lever) - BL7701 (heavy duty, SFIC) - BL5701KSCECP keypad-only unit
Gate locks: BL3400DKOMGPROECP (anti-climb case) - BL3430DKOMGPROECP - BL3430DKOGATE - BL4441MGPROECP - LB22 lock box
Fire tested and heavy duty: BL5001 - BL5401SSDDA (DDA lever) - Carbine CDL7200LL-KDSC-HD - Carbine CDL7200LL-HD - Lockwood 3572DX
Spares: BLSMGPRO560 / BLSMGPRO570 - BLL500070 - BL5000ECPCK - BL5701SPINDLE - SPBL5001MB - BL5000GASKET
Guides: What Is a Mechanical Digital Lock? - Changing Codes - Passage Mode vs Holdback Mode - Double-Sided Locks for Gates - MG Pro and ECP Explained - Mechanical Key Override - Lockwood vs Borg vs Carbine - Heavy Duty Commercial Mech-Digi - Latch vs Bolt - Buyer's Guide Ch 16: Mechanical Digital Locks - Ch 10 - Borg brand profile - Browse all mechanical digital locks
What's In The Box - Borg BL5771MGPROECP
- External keypad and lever assembly with built-in key override (MG Pro 2 black)
- Internal keypad and lever assembly with built-in key override (MG Pro 2 black)
- 60mm heavy duty tubular latch (12.5mm bolt, anti-thrust pin)
- Strike plate and box keep
- Silca YA5 6-pin euro override cylinder (fitted)
- Keys for the override cylinder
- 8mm square drive spindle
- Easicode Pro code change key
- Code change deactivation plugs (optional fit)
- Free passage deactivation plugs (optional fit)
- Fixings and installation hardware
- Installation instructions
Cylinder Included
The Silca YA5 6-pin euro override cylinder and its keys are in the box. We can key it alike with an existing system before dispatch - ask when ordering. A 70mm backset latch is the black MG Pro BLSMGPRO570, under Accessories and Spare Parts on the main tab. No batteries or wiring are required or supplied.
The Silca YA5 6-pin euro override cylinder and its keys are in the box. We can key it alike with an existing system before dispatch - ask when ordering. A 70mm backset latch is the black MG Pro BLSMGPRO570, under Accessories and Spare Parts on the main tab. No batteries or wiring are required or supplied.
Dimensions - Borg BL5771 / BL5700 Series
The back-to-back BL5771 uses the BL5700 series keypad on both faces - one drawing covers both. Supplied fixings suit 35-54mm doors.
External and inside keypads - 178mm H x 48mm W x 26mm D, 129.4mm lever, 76.8mm projection
60mm heavy duty tubular latch - 92mm overall, 60mm backset, 12.5mm anti-thrust bolt
PDF Files - Borg BL5771MGPROECP
Borg BL5000 MG Pro ECP Series Brochure (PDF)
Borg's two-page marine grade Easicode Pro brochure covering the BL5771 MG Pro ECP - MG Pro 2 black finish, 1,000 hour salt spray and 100,000 cycle testing, over 1,000 combinations, the back-to-back and key override options, technical information and dimensioned keypad and inside handle drawings.
Borg's two-page marine grade Easicode Pro brochure covering the BL5771 MG Pro ECP - MG Pro 2 black finish, 1,000 hour salt spray and 100,000 cycle testing, over 1,000 combinations, the back-to-back and key override options, technical information and dimensioned keypad and inside handle drawings.
Borg BL5700 ECP Series Brochure (PDF)
Borg's two-page brochure for the BL5700 ECP key override series - the BL5700 keypad, the BL5701 and this back-to-back BL5771 - features, lock options, fixings and dimensioned drawings, with the hospitals and key-alike positioning.
Borg's two-page brochure for the BL5700 ECP key override series - the BL5700 keypad, the BL5701 and this back-to-back BL5771 - features, lock options, fixings and dimensioned drawings, with the hospitals and key-alike positioning.
Borg BL5000 ECP User Manual and Code Change Instructions (PDF)
Borg's six-page manual for the BL5000 series Easicode Pro locks, the BL5700 key override models included - handing (the BL5700 key override keypad has its own procedure), the free passage and code change deactivation plugs, spindle fitting, the on-door code change, daily use and how to find a lost code.
Borg's six-page manual for the BL5000 series Easicode Pro locks, the BL5700 key override models included - handing (the BL5700 key override keypad has its own procedure), the free passage and code change deactivation plugs, spindle fitting, the on-door code change, daily use and how to find a lost code.
Borg BL5000 ECP Instruction Segments (PDF)
The same Easicode Pro instructions as six one-page segments - preparation and handing, the deactivation plugs, spindle fitting (the 15mm blade engagement rule), the code change, daily operation and identifying a lost code.
The same Easicode Pro instructions as six one-page segments - preparation and handing, the deactivation plugs, spindle fitting (the 15mm blade engagement rule), the code change, daily operation and identifying a lost code.
Borg BL5001, BL5201 and BL5401 Drilling Template (PDF)
One-page drilling template for the BL5000 platform tubular latch locks - 159mm hole centres with 60mm or 70mm backset marks for the through-door and latch preparation. Named for the BL5001, BL5201 and BL5401 in its text; the BL5771 shares the preparation on both faces.
One-page drilling template for the BL5000 platform tubular latch locks - 159mm hole centres with 60mm or 70mm backset marks for the through-door and latch preparation. Named for the BL5001, BL5201 and BL5401 in its text; the BL5771 shares the preparation on both faces.
Borg Lock Servicing Guide (PDF)
Borg's general maintenance guide for pushbutton keypad locks - monthly silicone-based lubricant care and an annual full service. This is the routine to follow for this lock.
Borg's general maintenance guide for pushbutton keypad locks - monthly silicone-based lubricant care and an annual full service. This is the routine to follow for this lock.
Borg Locks Warranty
Borg products sold in Australia are covered against mechanical defects in materials and workmanship under normal use and service. Warranty claims are handled by Terry's Tradies Pty Ltd and its associated websites, trading names, and subsidiaries.
Warranty Summary
What the Warranty Covers
- Mechanical defects in materials and workmanship
- Defects arising under normal use and service conditions
- Repair or replacement of defective units at the discretion of the Australian distributor (LSC)
What the Warranty Does Not Cover
- Damage arising from misuse, vandalism, or abuse
- Damage resulting from improper installation
- Locks that have been dismantled - dismantling invalidates the warranty
- Normal wear and tear
- Cosmetic damage not affecting function
How to Make a Claim
For full returns and warranty claim procedures, visit our Returns & Warranty page - this is kept up to date and is the authoritative reference for current claim steps.
- Contact Terry's Tradies Pty Ltd first if you purchased through us or one of its associated trading names - we will assess the issue and manage the warranty process with LSC on your behalf. You do not need to contact LSC or Borg Locks UK directly.
- Have your proof of purchase ready (receipt or order confirmation).
- Warranty claims for Borg products in Australia are processed through LSC, the authorised Australian importer and distributor. Where an item is returned to LSC, freight charges must be prepaid and the item returned within the warranty period.
- If LSC finds the returned item to be defective, it will be repaired or replaced, and a detailed assessment report is provided to the customer after examination.
Australian Consumer Law
Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure. The Borg manufacturer warranty above operates alongside - and does not limit - these statutory rights.
Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure. The Borg manufacturer warranty above operates alongside - and does not limit - these statutory rights.
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