Introduction
This manual provides comprehensive instructions for the installation, operation, and maintenance of your Avatto SDL-A270-B-6072 Wi-Fi Smart Digital Lock. Please read this manual thoroughly before installation and use to ensure proper function and safety. Keep this manual for future reference.
Important Safety Information
- Do not attempt to disassemble or repair the lock yourself. Contact qualified service personnel.
- Avoid exposing the lock to direct sunlight, rain, or corrosive substances.
- Ensure all components are securely fastened during installation to prevent malfunction.
- Regularly check battery levels and replace them as needed to avoid lockouts.
- Keep your PIN codes and app access credentials secure.
Product Overview
The Avatto SDL-A270-B-6072 is a smart digital lock designed for enhanced security and convenience. It features multiple unlocking methods and Wi-Fi connectivity for remote management.

This image displays the Avatto SDL-A270-B-6072 Wi-Fi Smart Digital Lock. It features a black finish with a numeric keypad (1-9, *, 0, #) at the top, a handle with an integrated fingerprint sensor indicated by a blue ring, and a sleek, modern design.
Key Components:
- Numeric Keypad: For PIN code entry.
- Fingerprint Sensor: Integrated into the handle for biometric access.
- Handle: Ergonomically designed for comfortable use.
- Battery Compartment: (Typically located on the interior unit) For power supply.
- USB-C Emergency Power Port: (If applicable, for temporary power in case of battery depletion).
Setup and Installation
1. Package Contents Verification:
Before beginning installation, ensure all parts are present:
- Front Panel Assembly
- Rear Panel Assembly
- Mortise Lock Body
- Strike Plate and Box
- Mounting Screws and Spindles
- User Manual
- Emergency Keys (if included)
2. Mechanical Installation:
- Prepare the Door: Ensure your door meets the required thickness and bore hole dimensions. Refer to the provided template for drilling if necessary.
- Install Mortise Lock Body: Insert the mortise lock into the door edge and secure it with screws.
- Install Spindles: Insert the square spindles through the mortise lock.
- Attach Front Panel: Position the front panel, ensuring the spindle and cable pass through the door.
- Attach Rear Panel: Connect the cable from the front panel to the rear panel. Align the rear panel with the spindle and mounting posts, then secure with screws.
3. Power Installation:
The lock requires batteries for operation. Open the battery cover on the interior unit and insert the specified number of batteries (typically AA or AAA, not specified in product data, so generic advice). Ensure correct polarity. Close the battery cover.
4. Initial Setup and App Pairing:
- Download the App: Search for the "AVATTO Smart" or "Tuya Smart" app in your mobile app store (iOS/Android).
- Create Account: Register for a new account or log in if you already have one.
- Add Device: Follow the in-app instructions to add your smart lock. This typically involves putting the lock into pairing mode (refer to the lock's specific prompts, often by pressing a button on the interior unit or entering a specific sequence on the keypad) and connecting it to your home Wi-Fi network.
- Administrator Setup: The first user registered is usually the administrator. Set up your primary fingerprint and/or PIN code.
5. User Management:
Use the mobile app to add, modify, or delete user fingerprints, PIN codes, and temporary access permissions.
- Adding Fingerprints: Follow app prompts to register fingerprints by placing your finger on the sensor multiple times.
- Adding PIN Codes: Create unique PIN codes for different users via the app or directly on the lock's keypad (admin access required).
- Temporary Access: Generate time-limited or one-time access codes for guests or service providers.
Operating Instructions
Unlocking the Door:
- By Fingerprint: Place your registered finger on the fingerprint sensor on the handle. The lock will unlock if the fingerprint is recognized.
- By PIN Code: Enter your registered PIN code on the numeric keypad, then press the '#' key (or equivalent confirmation key). The lock will unlock.
- Via Mobile App: Open the AVATTO Smart app, select your lock, and tap the unlock button.
- Emergency Key: In case of electronic failure or battery depletion, use the physical emergency key to unlock the door.
Locking the Door:
- Automatic Locking: The lock may be configured to automatically lock after a set period once the door is closed.
- Manual Locking: Press and hold the '#' key on the keypad for a few seconds, or use the lock button within the mobile app.
Maintenance
- Battery Replacement: When the low battery indicator appears (audible alert or app notification), replace all batteries with new ones of the same type. Do not mix old and new batteries.
- Cleaning: Wipe the lock's surface with a soft, dry cloth. Avoid using abrasive cleaners, solvents, or harsh chemicals that could damage the finish or electronic components.
- Firmware Updates: Periodically check the mobile app for available firmware updates. Install updates to ensure optimal performance and security.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Lock does not respond to input. | Dead batteries. | Replace batteries. Use emergency key or USB-C emergency power. |
| Fingerprint not recognized. | Finger is dirty/wet, sensor is dirty, or fingerprint not properly registered. | Clean finger and sensor. Re-register fingerprint if issue persists. |
| PIN code not working. | Incorrect code entered, or code deleted. | Verify PIN code. Check app for active codes. |
| Wi-Fi connection unstable or disconnected. | Router issues, distance from router, or network changes. | Check router. Move lock closer to router or use a Wi-Fi extender. Re-pair the lock with the app. |
| Lock is jammed or difficult to operate. | Misalignment during installation, or debris in the mechanism. | Check door and frame alignment. Inspect for obstructions. If mechanical, professional assistance may be required. |
Specifications
| Brand | AVATTO |
| Model Number | SDL-A270-B-6072 |
| Color | Black |
| Dimensions (Package) | 10 x 2 x 1 cm |
| Weight (Package) | 1 kg |
| Power Source | Batteries (type not specified, typically AA/AAA) |
| Connectivity | Wi-Fi |
Warranty and Support
For warranty information and technical support, please refer to the warranty card included with your product or visit the official AVATTO website. Keep your purchase receipt as proof of purchase.
For further assistance, you may contact AVATTO customer service through the contact details provided on their official website or within the AVATTO Smart application.





