1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your mijob Tuya Wifi Smart Door Lock. Please read this manual thoroughly before installation and use to ensure proper function and security.
The mijob Smart Door Lock offers multiple unlocking methods including fingerprint, password, IC card, mechanical key, and mobile application control. It features a built-in camera for enhanced security and remote monitoring.

Image 1.1: Front and back panels of the mijob Smart Door Lock, showcasing the sleek design and integrated keypad and camera.
2. Package Contents
Verify that all components listed below are present in your package before proceeding with installation.
- 1X Outer Panel
- 1X Inner Panel
- 1X Lock Body
- 1X Door Buckle
- 2X Mechanical Keys
- 2X IC Cards
- 1X Installation Accessories (screws, etc.)

Image 2.1: Visual representation of the package contents, including the lock panels, lock body, door buckle, mechanical keys, IC cards, and installation screws.
3. Product Features
The mijob Smart Door Lock incorporates advanced features for security and convenience:
- Multiple Unlocking Methods: Fingerprint, Password, IC Card, Mechanical Key, Mobile Application.
- Built-in Camera: For visual verification of visitors and remote monitoring.
- Remote Control: Manage access and monitor your door via the Tuya Wifi APP.
- Biometric Recognition: Secure and fast fingerprint access.
- Durable Construction: Made from aluminum alloy.
- Anti-Theft Alarm: Integrated security features to deter unauthorized access.

Image 3.1: Detailed view of the internal components of the smart lock, highlighting the camera and sensor modules responsible for its advanced functionalities.
4. Setup and Installation
Professional installation is recommended. Ensure your door meets the specified thickness requirements (40-120 mm) before installation.
4.1 Pre-Installation Checks
- Verify door thickness is between 40mm and 120mm.
- Ensure the door frame is suitable for the lock body and strike plate.
- Confirm all package contents are present.
4.2 Installation Steps
Refer to the detailed installation guide provided with your lock for specific drilling templates and assembly instructions. General steps include:
- Prepare the door by drilling necessary holes according to the template.
- Install the lock body into the door edge.
- Mount the outer panel, connecting necessary cables through the door.
- Mount the inner panel, connecting cables and securing it to the outer panel.
- Install the door buckle on the door frame.
- Insert batteries and test the lock's basic mechanical function.
5. Operating Instructions
The mijob Smart Door Lock offers multiple convenient ways to unlock your door.
5.1 Initial Setup and App Connection
- Download the Tuya Smart application from your mobile app store.
- Register an account and log in.
- Follow the in-app instructions to add your smart door lock, ensuring your phone is connected to a 2.4GHz Wi-Fi network during pairing.
- Once connected, you can manage users, view access logs, and remotely unlock the door.

Image 5.1: The smart lock connects to your home Wi-Fi network, enabling cloud services and remote control via the Tuya mobile application.
5.2 Unlocking Methods
- Fingerprint Unlock: Place your registered finger on the fingerprint sensor. The lock will unlock if the fingerprint is recognized.
- Password Unlock: Enter your registered password on the keypad, followed by the '#' key.
- IC Card Unlock: Present a registered IC card to the card reader area on the lock.
- Mechanical Key Unlock: In case of emergency or battery depletion, insert the mechanical key into the keyhole and turn to unlock.
- Application Unlock: Open the Tuya Smart app, select your lock, and use the unlock function within the app.

Image 5.2: Demonstrates unlocking the door using the keypad and receiving a notification or control option on the mobile application.
5.3 Built-in Camera Functionality
The integrated camera allows you to see who is at your door. When someone rings the doorbell or approaches, you can view the live feed through the Tuya Smart app and communicate with visitors remotely.

Image 5.3: The smart lock's screen displays a visitor, indicating its visual communication capabilities.
5.4 Security Features
The lock is equipped with an anti-theft alarm system. If unauthorized attempts to open the door are detected, the alarm will activate, and you may receive a notification via the mobile application.

Image 5.4: The smart lock detects suspicious activity and triggers an alarm, enhancing home security.
6. Maintenance
To ensure the longevity and optimal performance of your smart door lock, follow these maintenance guidelines:
- Cleaning: Wipe the lock's surface with a soft, dry cloth. Avoid using abrasive cleaners or solvents that could damage the finish or electronic components.
- Battery Replacement: Replace batteries promptly when the low battery indicator appears. Use high-quality alkaline batteries.
- Fingerprint Sensor: Keep the fingerprint sensor clean and dry for accurate recognition.
- Mechanical Parts: Periodically check the screws and mechanical components for tightness. Do not lubricate the lock cylinder with oil; use graphite powder if necessary.
- Software Updates: Keep the Tuya Smart app updated to the latest version for new features and security enhancements.
7. Troubleshooting
If you encounter issues with your smart door lock, refer to the following common problems and solutions:
- Lock not responding: Check battery levels and replace if necessary. Ensure the lock is properly installed and all connections are secure.
- Fingerprint not recognized: Ensure your finger is clean and dry. Re-register your fingerprint if the issue persists.
- Password not working: Verify the correct password is being entered. Check for any keypad malfunctions.
- App connection issues: Ensure your Wi-Fi network is stable and the lock is within range. Restart the app and the lock. Re-pair the lock with the app if needed.
- Mechanical key not working: Ensure the key is fully inserted and turned correctly. Do not force the key.
- Door not locking/unlocking smoothly: Check for any obstructions in the door frame or latch. Ensure the lock body is aligned correctly.
For persistent issues, contact customer support.
8. Specifications
| Feature | Specification |
|---|---|
| Material | Aluminum alloy |
| Suitable Door Thickness | 40-120 mm |
| Unlocking Methods | Application, Mechanical Key, IC Card, Wireless Network, Password, Fingerprint |
| Item Weight | 1.76 ounces |
| Package Dimensions | 1.18 x 0.79 x 0.39 inches |
| Model Number | 30X240MM |
9. Warranty and Support
Warranty information for this product was not provided in the available data. Please refer to your purchase documentation or contact the seller directly for details regarding warranty coverage and customer support.