BIWIBON BCA-02
BIWIBON Fingerprint Door Lock User Manual
Model: BCA-02
Introduction
Thank you for choosing the BIWIBON Fingerprint Door Lock. This smart door knob offers advanced security and convenience with multiple unlocking methods, including fingerprint, mobile app, IC cards, password, and traditional keys. This manual provides detailed instructions for installation, setup, operation, and maintenance to ensure optimal performance and security.

Safety Information
- Do not attempt to disassemble or repair the lock yourself. Refer to qualified personnel for service.
- Keep mechanical backup keys in a secure location outside the property.
- Ensure the door is properly aligned and closes smoothly before installation to prevent damage to the lock mechanism.
- Use only specified AAA alkaline batteries. Do not mix old and new batteries or different types of batteries.
- Avoid exposing the lock to direct sunlight, rain, or corrosive substances.
Package Contents
Verify that all components are present before beginning installation:
- Front Handle Assembly (with fingerprint sensor and keypad)
- Back Handle Assembly (with battery compartment)
- Single Latch
- Strike Plate
- 2 Mechanical Backup Keys
- 2 IC Cards
- Square Cotter
- 2 Spiral Tubes
- Screws (various sizes)
- User Manual (this document)
Installation Guide
The BIWIBON Fingerprint Door Lock is designed for easy installation on most standard US doors. No additional drilling is typically required for standard door preparations.
1. Prepare the Door
Ensure your door meets the following specifications:
- Door Thickness: 35mm-55mm (1.38"-2.17")
- Backset: 60mm-70mm (2-3/8"-2-3/4")
- Cross Bore Diameter: 54mm (2-1/8")

2. Install the Latch
- Insert the single latch into the door edge. Ensure the latch bolt faces the correct direction (beveled edge towards the door frame).
- Secure the latch with the provided screws.
3. Install the Front Handle
- Feed the cable from the front handle through the cross bore hole.
- Align the square cotter with the latch mechanism.
- Position the front handle assembly on the exterior side of the door.
4. Install the Back Handle
- Connect the cable from the front handle to the port on the back handle assembly.
- Align the back handle with the square cotter and the mounting holes.
- Secure the back handle to the front handle using the spiral tubes and screws. Do not overtighten.
5. Install Batteries
- Open the battery cover on the back handle.
- Insert 4 new AAA alkaline batteries, ensuring correct polarity.
- Close the battery cover. The lock will emit a sound indicating it is powered on.
6. Install the Strike Plate
- Align the strike plate with the latch bolt on the door frame.
- Secure the strike plate with the provided screws.
Setup and Programming
After installation, configure your lock using the mobile application.
1. Download and Pair the App
- Download the "Tuya Smart" or "Smart Life" app from your smartphone's app store.
- Create an account or log in.
- Follow the in-app instructions to add your new door lock. Ensure Bluetooth is enabled on your phone and you are near the lock.

2. Add Fingerprints
- In the app, navigate to the lock settings and select "Fingerprint Management."
- Follow the prompts to register new fingerprints. You will be asked to place your finger on the sensor multiple times from different angles.

3. Set Passcodes
- From the app, select "Password Management."
- You can create permanent, timed, or one-time passcodes.
- Enter your desired passcode on the lock's keypad to test it after creation.

4. Register IC Cards
- In the app, go to "IC Card Management."
- Select "Add Card" and then tap the IC card against the designated area on the lock (usually near the keypad or fingerprint sensor).

Operating Instructions
Unlocking Methods
- Fingerprint: Place your registered finger on the sensor. The lock will unlock if recognized.
- Passcode: Enter your 6-8 digit passcode on the keypad, followed by '#'.
- IC Card: Tap a registered IC card against the sensor area.
- Mobile App: Open the app, select your lock, and tap the unlock icon.
- Backup Key: Insert the mechanical key into the keyhole and turn to unlock.

Advanced Features
- Anti-Peeping Passcode: When entering your passcode, you can input random digits before and after your actual code to obscure it from onlookers. Example: [Random Digits] + [Your Passcode] + [Random Digits].
- Passage Mode: Activate this mode via the app to keep the door unlocked for a specified period, useful for gatherings or when frequent entry/exit is needed.
- Auto-Lock: The lock can be configured via the app to automatically lock after a set period (e.g., 5-30 seconds) once the door is closed.
- Remote Access (BIWIBON Gateway Required): With the optional BIWIBON Gateway (sold separately), you can remotely lock/unlock your door, generate temporary codes, and monitor access records from anywhere via Wi-Fi.

Maintenance
- Battery Replacement: When the low battery alert sounds or is indicated in the app, replace all 4 AAA batteries promptly.
- Emergency Power: If batteries die completely, connect a power bank to the micro-USB port on the front handle for temporary power to unlock the door. This port is for emergency power only, not for charging internal batteries.
- Cleaning: Wipe the lock surface and fingerprint sensor with a soft, dry cloth. Avoid abrasive cleaners or solvents.

Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Lock does not respond. | Dead batteries. | Replace batteries or use emergency power with a power bank. |
| Fingerprint not recognized. | Finger is wet/dirty, or not properly registered. | Ensure finger is clean and dry. Re-register fingerprint if issue persists. |
| Passcode not working. | Incorrect code, or not followed by '#'. | Verify the passcode. Ensure '#' is pressed after the code. |
| App cannot connect to lock. | Bluetooth off, too far from lock, or app issue. | Ensure Bluetooth is on and you are within range. Restart app/phone. Re-pair if necessary. |
| Lock is jammed. | Misalignment or obstruction. | Check for obstructions in the door frame or latch. Ensure proper installation alignment. |
Specifications
| Feature | Detail |
|---|---|
| Model Name | BCA-02 App Control Fingerprint Door Lock with Keypad |
| Brand | BIWIBON |
| Lock Type | Biometric, App Control, Touchscreen Keypad |
| Material | Metal |
| Color | Silver |
| Item Dimensions (L x W x H) | 5.7 x 2.75 x 2.75 inches |
| Item Weight | 2.15 Pounds |
| Power Source | 4 x AAA Batteries (not included) |
| Connectivity Protocol | Bluetooth (Wi-Fi with optional Gateway) |
| Controller Type | Tuya Smart App |
| Fingerprint Capacity | Up to 100 |
| IC Card Capacity | Up to 100 |
| Password Capacity | Up to 100 |
| Recommended Uses | Interior door lock, bedroom, office, apartment |
Warranty and Support
For warranty information, technical support, or assistance with your BIWIBON Fingerprint Door Lock, please refer to the contact information provided with your purchase or visit the official BIWIBON website. Additional protection plans may be available for purchase separately.
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