1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your Devo G4 Smart Lock. Please read this manual thoroughly before installation and use to ensure proper function and security.

Image: Devo G4 Smart Lock exterior and interior units with smartphone app interface.
2. Product Features
- App Control: Connect via Bluetooth to manage locking/unlocking, users, access history, and low battery alerts using the Tuya smart app.
- Four Unlocking Methods: Utilize APP control, password, physical key, or IC card for access. Includes 2 keys and 2 IC cards.
- Enhanced Security: Features wrong input restriction, temporary PIN code generation, and anti-peeping password. Operates without constant network reliance for improved security.
- Extended Battery Life & Durability: IP54 waterproof design withstands temperatures from 5°F to 122°F. Powered by 4 AA batteries (not included) for approximately 8 months of use. Includes Type-C emergency charging port. BHMA GRADE 3 certified for security and durability.
- Automatic & One-Touch Locking: Customizable auto-lock time (5-900 seconds) ensures the door is always secured.
- Easy Installation: Designed for straightforward installation without specialized tools, compatible with most American standard doors.

Image: Four convenient ways to unlock your Devo G4 Smart Lock.
3. Setup and Installation
Before beginning installation, ensure your door meets the compatibility requirements. The Devo G4 Smart Lock is compatible with most American standard doors. Refer to the provided measuring cardboard for precise dimensions.
3.1 Door Compatibility Check

Image: Door compatibility guide for Devo G4 Smart Lock.
- Door Thickness: 1-3/8" to 2-1/8" (35-55mm)
- Door Hole Diameter: 1-1/2" or 2-1/8" (38mm or 54mm)
- Backset: 2-3/8" or 2-3/4" (60mm or 70mm)
- Ensure your door is chiselled and uses a single cylinder mechanism.
3.2 Installation Steps
For a visual guide, please watch the official installation video below. Follow the steps carefully for correct setup.
Video: Devo G4 Smart Lock Installation Guide. This video demonstrates the step-by-step process of installing the Devo G4 Smart Lock, including checking dimensions, installing the latch, and securing the front and rear lock components.
- Check Dimensions and Install Latch: Use the provided template to verify door dimensions. Adjust the lock latch length if necessary (default is 60mm). Ensure the "UP" marking on the latch always faces upwards during installation. Secure the latch with screws.
- Install Front Lock: If your crossbore is 38mm, remove the spacer from the front lock. Insert the front lock into the door, ensuring the strip is inserted vertically into the keyhole.
- Install Rear Lock: Separate the rear lock from its mounting plate. Pass the wires from the front lock through the mounting plate. Secure the mounting plate with appropriate screws (Screw A for 45-55mm door thickness, Screw B for 35-45mm). Connect the data cable to the interior assembly. Turn the rear lock knob to the "unlock" position. Install 4 AA batteries (not included) and secure the battery cover.
4. Operating Instructions
The Devo G4 Smart Lock offers multiple convenient ways to secure and access your home.
4.1 Unlocking Methods
Learn how to use the various unlocking methods available with your smart lock.
Video: How to Use Devo G4/G5 Smart Lock. This video demonstrates the different unlocking methods for the Devo G4 Smart Lock, including key, password, IC card, and app control.
- Physical Key: Use the provided mechanical keys as a traditional backup unlocking method.
- Touchscreen Keypad: Enter your programmed password on the touchscreen keypad.
- IC Card: Tap the provided IC card on the designated area of the lock to unlock.
- App Control (Bluetooth): Use the Tuya smart app on your smartphone to remotely lock or unlock the door via Bluetooth.
4.2 App Control and Management
The Tuya smart app provides comprehensive control over your Devo G4 Smart Lock.

Image: Remote control features available via the Devo smart lock app.
- Lock & Unlock: Secure or open your door directly from the app.
- Manage Users: Add, modify, or delete user access, and assign different unlocking methods.
- Access Event History: View a log of all lock and unlock events.
- Temporary Passwords: Generate temporary PIN codes for guests or service providers.
- Low Battery Reminder: Receive notifications when the battery level is low.
- Real-Time Notifications: Get instant alerts for door activity.
Video: Devo G4 Smart Lock - How to Connect to the Internet. This video guides users through the process of connecting the smart lock to the internet via the app for remote functionality.
4.3 Auto-Lock Function
The auto-lock feature provides peace of mind by automatically securing your door after a set period.

Image: Auto-lock feature with customizable time settings.
- Customize the auto-lock time between 5 and 900 seconds via the app.
- The lock will automatically engage after each door closure, preventing accidental unlocks.
4.4 Anti-Peeping Password
Enhance security by entering random digits before or after your actual password to prevent others from guessing your code.
5. Maintenance
5.1 Battery Management

Image: Devo G4 Smart Lock battery compartment, highlighting 8-month battery life.
- The lock requires 4 AA batteries (not included).
- Expected battery life is approximately 8 months under normal usage.
- A low battery reminder will be sent via the app.
- In case of complete battery depletion, use the Type-C emergency charging port or the physical key for access.
5.2 Weather Resistance
- The Devo G4 Smart Lock has an IP54 waterproof rating.
- It is designed to operate reliably in temperatures ranging from 5°F to 122°F (-15°C to 50°C).
6. Troubleshooting
If you encounter issues with your Devo G4 Smart Lock, consider the following common solutions:
- Lock Not Responding: Check battery levels. Replace batteries if low. Ensure the lock is properly installed and all connections are secure.
- App Connectivity Issues: Ensure Bluetooth is enabled on your smartphone. Verify that the lock is within Bluetooth range. Restart the app or your phone if necessary.
- Keypad Not Responding: Clean the touchscreen surface. Ensure your fingers are dry.
- Incorrect Password Entry: Double-check the password. Remember to use the anti-peeping feature correctly.
- Latch Mechanism Issues: Ensure the latch is fully retracted when installed. Check for any obstructions in the door frame or latch mechanism.
For persistent issues, refer to the detailed troubleshooting section in the full user manual or contact customer support.
7. Specifications
| Feature | Detail |
|---|---|
| Brand | Devo |
| Model Name | G4 |
| Lock Type | Deadbolt |
| Material | Aluminum |
| Color | Gray |
| Item Dimensions (L x W x H) | 9.5 x 7.3 x 3.8 inches |
| Item Weight | 2.54 Pounds |
| Connectivity Protocol | Bluetooth |
| Control Method | App, Touch |
| Special Features | Auto-Lock, One-Touch Lock, Passcode Unlock, Touchscreen, Weather Resistant (IP54) |
| Power Source | 4 AA Batteries (not included), Type-C Emergency Charging |
| Recommended Use | Front Door |
| Included Components | G4 Smart Door Lock * 1, IC Card * 2, Installation Accessories, Mechanical Key * 2, User Manual |
8. Warranty and Support
Devo provides a 12-month warranty for the G4 Smart Lock. Technical support is also available to assist with any questions or issues you may encounter.
For assistance, please refer to the contact information provided in your product packaging or visit the official Devo website.




