Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your QDVOPHZA TTLock Waterproof Fingerprint Smart Lock. This intelligent lock is designed for enhanced security and convenience, featuring multiple unlocking methods and a durable, waterproof construction suitable for various door types, including sliding doors.
Please read this manual thoroughly before installation and use to ensure proper function and longevity of your smart lock.

The QDVOPHZA smart lock is designed for sliding doors, featuring waterproof capabilities and multiple unlocking methods for enhanced security and convenience.
Package Contents
Verify that all components are present in the package before beginning installation.

This image displays the QDVOPHZA smart lock's outer and inner panels, along with a list of included items: Outer panel (x1), Inner panel (x1), Lock body (x1), Accessories (x1), Mechanical key (x2), Battery (x1), Parts (x1), IC card (x2), User manual (x1), QC (x1).
| Item | Quantity |
|---|---|
| Outer panel | 1 |
| Inner panel | 1 |
| Lock body | 1 |
| Accessories | 1 |
| Mechanical key | 2 |
| Battery | 1 |
| Parts | 1 |
| IC card | 2 |
| User manual | 1 |
| QC | 1 |
Setup and Installation
This smart lock is designed for easy installation on various door types, including sliding doors, slim doors, framed glass doors, aluminum doors, store doors, and broken bridge doors. Ensure your door thickness is compatible with the lock's specifications.

The QDVOPHZA smart lock is compatible with a wide range of doors, including slim doors, framed glass doors, aluminum doors, store doors, broken bridge doors, and sliding doors, fitting 99% of doors on the market with its 3.1cm width slim design.
- Prepare the Door: Ensure the door frame and door itself are clean and free of obstructions. Measure the door thickness and check against the lock's requirements.
- Install the Lock Body: Follow the provided template (if included) to drill necessary holes for the lock body. Secure the lock body into the door edge.
- Mount Outer Panel: Connect the necessary cables from the outer panel through the door to the inner panel side. Position the outer panel and secure it.
- Mount Inner Panel: Connect the cables from the outer panel to the inner panel. Secure the inner panel to the door, ensuring all connections are firm.
- Install Batteries: Insert the required batteries into the designated compartment on the inner panel.
- Test Functionality: After installation, test the mechanical key, and ensure the handle operates smoothly. Proceed to initial setup for electronic functions.
Note: Professional installation is recommended if you are unfamiliar with door lock installation procedures.
Operating Instructions
The QDVOPHZA smart lock offers multiple convenient and secure unlocking methods.

This image demonstrates the various ways to unlock the QDVOPHZA smart lock: via the TTLock App on a smartphone, using a biometric fingerprint, entering a virtual password on the keypad, scanning an IC card, or using a traditional mechanical key.
1. Unlocking via TTLock App
- Download the "TTLock" app from your smartphone's app store.
- Register an account and log in.
- Add your smart lock to the app by following the on-screen instructions (usually involves pairing via Bluetooth).
- Once connected, you can remotely unlock the door, manage users, view access logs, and configure settings.
2. Unlocking via Fingerprint

The smart lock features biometric fingerprint recognition, utilizing bio-semiconductor technology for fast and accurate identification, preventing false fingerprints.
- Enroll Fingerprints: Use the TTLock app or the lock's master settings to enroll new fingerprints. Follow the prompts to scan your finger multiple times for accurate registration.
- Unlock: Place your registered finger firmly on the fingerprint sensor. The lock will unlock if the fingerprint is recognized.
3. Unlocking via Virtual Password
- Set Passwords: Create temporary or permanent passwords through the TTLock app.
- Unlock: Enter your password on the keypad. The lock supports virtual passwords, allowing you to enter random digits before or after your actual password to prevent onlookers from guessing your code.
4. Unlocking via IC Card
- Register IC Cards: Use the TTLock app or the lock's master settings to register the included IC cards.
- Unlock: Present the registered IC card to the card reader area on the lock. The lock will unlock upon successful recognition.
5. Unlocking via Mechanical Key
- In case of battery depletion or electronic malfunction, insert the mechanical key into the keyhole and turn to unlock the door manually.
Maintenance
Proper maintenance ensures the longevity and optimal performance of your smart lock.

The QDVOPHZA smart lock features a waterproof and dustproof design, ensuring reliable operation even in rainy or wet conditions.
- Cleaning: Wipe the lock's surface with a soft, dry cloth. Avoid using abrasive cleaners, solvents, or harsh chemicals, as these can damage the finish and electronic components.
- Battery Replacement: Replace batteries promptly when the low battery indicator appears. Use high-quality alkaline batteries for best performance. Do not mix old and new batteries.
- Fingerprint Sensor: Keep the fingerprint sensor clean and dry. Dust or moisture can affect recognition accuracy.
- Mechanical Parts: Periodically check the mechanical components for smooth operation. If any stiffness is observed, consult a professional.
- Software Updates: Regularly check the TTLock app for firmware updates for your lock to ensure optimal security and functionality.
Troubleshooting
Here are solutions to common issues you might encounter.
- Lock not responding:
- Check battery levels and replace if necessary.
- Ensure the lock is properly installed and all cables are connected.
- Fingerprint not recognized:
- Ensure your finger is clean and dry.
- Try repositioning your finger on the sensor.
- Re-enroll your fingerprint if the issue persists.
- App connection issues:
- Ensure Bluetooth is enabled on your smartphone.
- Make sure you are within Bluetooth range of the lock.
- Restart the TTLock app or your smartphone.
- Keypad not responding:
- Check for low battery.
- Clean the keypad surface.
- Lock is jammed or stiff:
- Do not force the handle.
- Check for any physical obstructions in the door frame or lock mechanism.
- If the issue persists, contact customer support.
Specifications
| Feature | Detail |
|---|---|
| Brand | QDVOPHZA |
| Model Number | w0u5903wei |
| Color | Black-a |
| Material | Aluminum alloy |
| Unlocking Methods | Fingerprint, Password, IC Card, Mechanical Key, TTLock App |
| Waterproof Rating | Yes (designed for wet/rainy environments) |
| Door Compatibility | Sliding doors, slim doors, framed glass doors, aluminum doors, store doors, broken bridge doors (3.1cm width) |
| Power Source | Battery (quantity 1 included) |
Warranty and Support
For warranty information and technical support, please refer to the contact details provided with your purchase documentation or visit the official QDVOPHZA website. Keep your proof of purchase for warranty claims.