Tuya Smart Fingerprint Lock S4 User Manual

1. Introduction

This manual provides detailed instructions for the installation, operation, and maintenance of your Tuya Smart Fingerprint Lock S4. Please read this manual thoroughly before installation and use to ensure proper function and longevity of your device.

The Tuya Smart Fingerprint Lock S4 offers multiple unlocking methods, including fingerprint, password, Tuya Bluetooth app, and mechanical key, providing enhanced security and convenience for your home or office. All operational settings can be managed via the mobile application.

Note:

• Only one phone can be directly connected to one lock device at a time.
• If multiple users need app access, devices can be shared within the Tuya Smart Life application.

2. Package Contents

Please verify that all components are present and in good condition before proceeding with installation.

• Front Handle Assembly (with fingerprint sensor and keypad)
• Rear Handle Assembly (with battery compartment)
• Mortise/Latch
• Strike Plate
• Mounting Screws and Connecting Posts
• Mechanical Keys (2x)
• Installation Template (not pictured, but typically included)

3. Specifications

4. Installation Guide

The Tuya Smart Fingerprint Lock S4 is designed for drilling installation and can replace most traditional door handle locks. Ensure your door thickness is between 28-53mm.

4.1 Lock Cylinder Specifications

The lock cylinder is adjustable to fit a realm of 60mm-70mm. Ensure the dimensions match your door's requirements.

4.2 General Installation Steps (Summary)

1. Prepare the Door: Remove your existing lock. Use the provided template to mark and drill any necessary holes for the new lock.
2. Install the Mortise/Latch: Insert the mortise into the door edge and secure it with screws. Ensure the latch bolt operates smoothly.
3. Install the Front Handle: Route the connecting cables through the door and attach the front handle assembly.
4. Install the Rear Handle: Connect the cables from the front handle to the rear handle. Secure the rear handle assembly to the door using the provided screws and connecting posts.
5. Insert Batteries: Open the battery compartment on the rear handle and insert 4 AAA batteries (ensure correct polarity).
6. Test Operation: Test the mechanical key and ensure the handle operates the latch correctly.

For detailed, step-by-step instructions, please refer to the full installation guide included in your product packaging.

5. Operating Instructions

The S4 Smart Lock offers multiple convenient ways to unlock your door.

5.1 Tuya Smart Life App Setup and Control

The Tuya Smart Life app allows for remote unlocking, user management, and settings configuration.

1. Download App: Search for "Tuya Smart" or "Smart Life" in your mobile app store and install it.
2. Register/Login: Create an account or log in.
3. Add Device: Follow the in-app instructions to add your S4 Smart Lock. This typically involves putting the lock into pairing mode (refer to the lock's specific instructions for this step).
4. Remote Unlocking: Once connected, you can unlock the door remotely via the app.

5.2 Fingerprint Unlocking

The S4 lock supports up to 50 unique fingerprints.

1. Enroll Fingerprint: Use the Tuya Smart Life app to add new fingerprints. Follow the on-screen prompts to scan your finger multiple times for accurate registration.
2. Unlock: Place your registered finger on the fingerprint sensor. The lock will unlock if the fingerprint is recognized.

5.3 Password Unlocking

Create secure 6-8 digit passwords with over a million possible combinations. The LED digital display screen makes operation clear.

1. Set Password: Use the Tuya Smart Life app to create and manage user passwords.
2. Unlock: Enter your 6-8 digit password on the keypad, then press '#' or the confirmation button.
3. Virtual Password Feature: To prevent onlookers from guessing your password, you can enter random digits before or after your actual password. For example, if your password is '123456', you can enter '98712345609' and the lock will still recognize '123456'.

5.4 Card Unlocking

The lock supports unlocking via compatible smart cards.

1. Register Card: Use the Tuya Smart Life app to register new smart cards with the lock.
2. Unlock: Present the registered card to the designated card reader area on the lock.

5.5 Mechanical Key Unlocking

For traditional access or in case of electronic failure, mechanical keys are provided.

1. Locate Keyhole: The mechanical keyhole is typically discreetly located on the front handle.
2. Unlock: Insert the mechanical key and turn to unlock the door.

6. Maintenance

6.1 Battery Replacement

The lock is powered by 4 AAA dry batteries. When the battery level is low, the lock will provide a low-battery warning. Replace all four batteries promptly to ensure continuous operation.

1. Open the battery compartment on the rear handle.
2. Remove the old batteries.
3. Insert new AAA batteries, ensuring correct polarity (+/-).
4. Close the battery compartment.

6.2 Emergency Power Supply

If the batteries completely deplete and you are locked out, you can use a power bank to temporarily power the lock via its Type-C USB charging port.

1. Connect a Type-C USB cable from a power bank to the emergency charging port on the lock.
2. Once powered, you can use a registered fingerprint or password to unlock the door.
3. Alternatively, use the mechanical key as a backup.

6.3 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.

7. Troubleshooting

• Lock not responding: Check battery levels. If low, replace batteries or use emergency Type-C power.
• Fingerprint not recognized: Ensure your finger is clean and dry. Try re-registering your fingerprint via the app.
• Password not working: Double-check the entered password. Ensure the lock is not in a temporary lockout mode due to multiple incorrect attempts. Try using the virtual password feature.
• App connectivity issues: Ensure Bluetooth is enabled on your phone and the lock is within range. Restart the app or re-pair the device if necessary.
• Lock is loose: Check all mounting screws and tighten them if needed.

8. User Tips

• Always keep your mechanical keys in a safe, accessible location outside the locked area for emergency access.
• Regularly check the battery status via the Tuya Smart Life app to avoid unexpected lockouts.
• When setting up passwords, consider using the virtual password feature to enhance security against shoulder surfing.
• For optimal fingerprint recognition, ensure your finger is clean and covers the sensor fully during registration and unlocking.

9. Warranty and Support

For any technical assistance, warranty claims, or further inquiries, please contact the seller or manufacturer directly. Keep your purchase receipt as proof of purchase.

This product is certified with CE and FCC standards, ensuring compliance with relevant safety and quality regulations.