1. Introduction
Thank you for choosing the CATCHFACE C6 Smart Lock. This advanced 5-in-1 keyless entry door lock offers multiple convenient and secure unlocking methods, including fingerprint, passcode, IC card, mechanical key, and control via the TTLock mobile application. Designed for easy installation and robust security, this smart lock is an ideal solution for enhancing access control in homes, bedrooms, and apartments.
This manual provides detailed instructions for the proper installation, setup, operation, and maintenance of your C6 Smart Lock. Please read this manual thoroughly before installation and use to ensure optimal performance and safety.
2. Safety Information
- Do not expose the lock to direct water or extreme humidity. This lock is designed for indoor use only and is not weatherproof.
- Use only specified batteries (4x AAA alkaline batteries). Do not mix old and new batteries or different types of batteries.
- Keep mechanical keys in a safe place outside the property to be used for emergency access.
- Avoid using abrasive cleaners or solvents on the lock surface.
- Ensure proper installation to prevent damage to the lock or door.
- Regularly check the battery level and replace batteries promptly when indicated by the low battery alarm.
3. Package Contents
Verify that all components are present before beginning installation:
- CATCHFACE C6 Smart Lock (1 unit)
- IC Cards (5 units)
- Mechanical Keys (2 units)
- Installation Hardware (screws, spindle, etc.)
- User Manual (this document)

Image: Overview of the CATCHFACE C6 Smart Lock, including the main unit, mechanical keys, IC cards, and a smartphone displaying the TTLock app interface.
4. Installation
The CATCHFACE C6 Smart Lock is designed for easy installation and can directly replace most standard spherical door locks with a width of 55-75mm and a door thickness of 35-55mm. No extensive drilling or professional assistance is typically required.
4.1 Door Compatibility

Image: Diagram illustrating the compatible door dimensions (55-75mm spherical lock hole width, 35-55mm door thickness) and examples of traditional door knobs that can be replaced by the C6 Smart Lock.
4.2 Handle Orientation
The lock supports universal left and right door orientations. Ensure the handle is correctly oriented during installation for proper function.

Image: Visual examples of the CATCHFACE C6 Smart Lock installed on both left-opening and right-opening doors, as well as in home/bedroom and office/apartment settings.
For detailed step-by-step installation instructions, please refer to the included installation guide or the manufacturer's official installation video.
5. Setup
After physical installation, the smart lock requires initial setup, primarily through the TTLock application.
5.1 TTLock App Pairing
- Download the TTLock app from your smartphone's app store.
- Create an account and log in.
- Enable Bluetooth on your smartphone and ensure it is close to the lock.
- In the app, tap 'Add Lock' and select 'Door Lock'. The app will search for nearby locks.
- Select your C6 Smart Lock from the list and follow the on-screen prompts to pair.
5.2 User Management
Once paired, you can manage users and access methods:
- Adding Fingerprints: Follow the app's instructions to register fingerprints for quick and secure access. The lock features a high-precision fingerprint sensor for fast verification.
- Setting Passcodes: Generate permanent, timed, one-time, or custom passcodes for various users. The anti-peeping virtual password feature allows you to enter random digits before or after your actual code to prevent onlookers from guessing your entry.
- Registering IC Cards: Enroll the included IC cards for convenient tap-to-unlock access. If a card is lost, it can be easily deleted from the app.
- Granting eKeys: Share temporary or permanent eKeys with family, friends, or housekeepers directly through the app.

Image: Screenshots of the TTLock app demonstrating features such as remote unlock, passage mode, generating timed passcodes, auto-lock settings, operation logs, and other system settings.
6. Operating
The CATCHFACE C6 Smart Lock offers multiple ways to unlock and lock your door.
6.1 Unlocking Methods
- TTLock App Unlock: Open the TTLock app, ensure Bluetooth is on, and tap the unlock icon.
- Fingerprint Unlock: Place your registered finger on the fingerprint sensor. The lock will unlock in approximately 0.5 seconds.
- Passcode Unlock: Enter your valid passcode on the keypad. You can use the anti-peeping feature by entering random digits before or after your actual code.
- IC Card Unlock: Tap a registered IC card against the card reader area on the lock.
- Mechanical Key Unlock: Insert the mechanical key into the keyhole and turn to unlock. This is for emergency use.

Image: Visual representation of the five unlock methods: App Unlock, Fingerprint Unlock (up to 100 fingerprints), Passcode Unlock (up to 150 passwords), Fob/IC Card Unlock (100+ fobs, 2 cards included), and Mechanical Key Unlock (2 mechanical keys included).
6.2 Locking Methods
- Automatic Locking: The lock can be configured via the TTLock app to automatically lock after a set delay once the door is closed.
- Manual Locking: Press and hold the '#' key on the keypad for a few seconds to manually lock the door from the outside.
6.3 Additional Features
- Passage Mode: Set a specific time period during which the lock will remain unlocked until manually locked, useful for gatherings or busy periods.
- Silent Mode: Adjust the volume of voice prompts from the lock via the app.
- Operation Logs: View unlock records and attendance logs through the TTLock app.
Video: Demonstrates the various unlocking methods of the CATCHFACE Smart Lock, including app, fingerprint, password, IC card, and mechanical key unlocking.
7. Maintenance
7.1 Battery Replacement
The C6 Smart Lock is powered by 4 AAA alkaline batteries (not included). When the battery level is low, the lock will emit a low battery alarm. Replace all four batteries promptly to ensure continuous operation.

Image: Illustrates the use of 4 AAA alkaline batteries for ultra-long battery life and shows emergency unlocking options: mechanical key and USB power outlet for temporary power with a power bank.
7.2 Emergency Power
If the batteries completely drain, you can use a mechanical key for emergency unlocking or connect a power bank to the USB power outlet on the lock for temporary power to unlock.
7.3 Cleaning
Wipe the lock surface with a soft, dry cloth. Do not use harsh chemicals or abrasive materials that could damage the finish or electronic components.
8. Troubleshooting
- Lock not responding: Check battery levels and replace if necessary. Ensure the lock is properly installed and aligned.
- Fingerprint not recognized: Ensure your finger is clean and dry. Re-register your fingerprint if issues persist.
- Passcode not working: Verify the correct passcode is entered. Ensure the lock is not in passage mode if you expect it to lock.
- App connectivity issues: Ensure Bluetooth is enabled on your phone and the lock is within range. Restart the app or your phone.
- Lock is not weatherproof: This lock is designed for indoor use only. Exposure to rain or high humidity will cause damage and is not covered under warranty.
9. Specifications
Key technical specifications for the CATCHFACE C6 Smart Lock:

Image: A detailed diagram of the CATCHFACE C6 Smart Lock, highlighting its various components such as the fingerprint reader, touch keypad, card sensing area, cylinder hole, battery box, reset button, and charging port, along with key dimensions.
| Feature | Detail |
|---|---|
| Brand | CATCHFACE |
| Model Name | C6 TTLock Smart Lock Black |
| Lock Type | Biometric, Deadbolt, TTLock door lock |
| Material | Zinc |
| Color | C6-Black |
| Item Dimensions (L x W x H) | 5.8 x 2.5 x 2.8 inches |
| Item Weight | 2.3 pounds |
| Special Features | Alarm, Anti-Peeping Password, Back-Lit Keypad, Multiple Unlock Ways, One-Touch Lock |
| Connectivity Protocol | Bluetooth, Wi-Fi (with gateway, sold separately) |
| Controller Type | Amazon Alexa, Android, Google Assistant, iOS (via TTLock app) |
| Power Source | 4x AAA Batteries (not included) |
| Emergency Power | USB Power Outlet |
10. Warranty and Support
Specific warranty details and direct support contact information are not provided in this manual. Please refer to the product packaging or the seller's information on the purchase platform for warranty terms and customer support contacts. Keep your purchase receipt as proof of purchase for any warranty claims.




