Ensure the door is between 35mm and 55mm thick.
Gateman V20 Digital Door Lock User Manual and Installation Guide
. If you hear a melody or see a low-battery light, replace all four at once. Do not mix old and new batteries. Emergency Power : If the batteries die while you're outside, you can use a 9V battery
The security code can range from . Setting a new code automatically overwrites any previous PIN code. manuel d'utilisation - gateman v10 / v20 - BT Security
Insert 4 AA alkaline batteries. Do not mix old and new batteries . 3. Programming and User Manual
A multi-language user guide covering the V10 and V20 models can be found at BT Security .
Alternatively, turn the manual thumbturn knob to mechanically retract the deadbolt. 3. Advanced Security Features Fake PIN Code (Invisicode)
Do you need specific for installation?
The Internet Archive hosts a free, streamable and downloadable version of the V10-V20 manual. Quick Operation Guide
Press the button on the indoor unit again (or press the [*] key on the exterior keypad) to complete the setup. How to Register Smart Keys (Card Keys)
Remove internal batteries to silence, check for door alignment. Strike plate alignment or door warping issues.
Open the battery cover on the inside unit and press the button once. The keypad outside will light up.
| Problem | Likely fix | |---------|-------------| | Fingerprint not recognized | Clean sensor, re-enroll with drier/cleaner finger | | Keypad flashes red & beeps 3x | Wrong PIN or Master PIN | | Lock spins but bolt doesn't move | Door misaligned – adjust strike plate | | Keeps beeping after unlock | Low battery – replace now | | Forgot Master PIN | Factory reset (loses all users) |
The manual provides detailed instructions for operating the GateMan V20:
Give you for a specific alarm sound. Help you find where to buy a replacement V20. Let me know how you'd like to proceed ! manuel d'utilisation - gateman v10 / v20 - BT Security