1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your Makayuron Smart Door Lock M305Tuya. This smart lock offers five convenient ways to unlock your door: fingerprint, Tuya Wi-Fi app, passcode, RFID card, and a traditional mechanical key. Please read this manual thoroughly before installation and use to ensure proper functionality and security.
2. Product Features
- 5-in-1 Smart Access: Unlock your door using fingerprint, Tuya Wi-Fi app, passcode, RFID card, or mechanical key. This provides flexible and secure access for all family members.
- High-Security Fingerprint Sensor: Features fast and reliable fingerprint recognition with a response time of less than 0.3 seconds and high accuracy.
- Mobile Wi-Fi App Control: The Makayuron lock operates fully through the mobile app. Add users, generate temporary passcodes, view access history, and manage your lock remotely. Download the Tuya Mobile app for complete setup.
- Emergency Key Backup: Includes a mechanical key override for reliable access, even if batteries are low or other electronic methods are unavailable.
- Modern Design for Homes and Offices: Features a sleek design with robust build quality. Easy to install on wooden or metal doors, supporting door thicknesses from 35mm to 65mm.
- Important Reminder: Before permanently installing the smart door lock on your door, please connect it to your mobile phone first to ensure all functions operate correctly. We recommend completing the pairing and testing process before beginning permanent installation.

Figure 1: Multiple ways to unlock the Makayuron Smart Door Lock.

Figure 2: High-security fingerprint sensor for quick unlocking.

Figure 3: Smart codes for various access needs.

Figure 4: Easy control with the Tuya mobile application.

Figure 5: Features designed to secure your home.

Figure 6: Well-considered emergency design with backup keyhole and USB power.

Figure 7: Code unlock feature, ideal for guests.

Figure 8: Long-lasting 8-month battery life (4 AA batteries included).
3. Installation Instructions
Before proceeding with the physical installation, ensure you have connected the lock to your mobile phone and tested all functions. This will prevent issues after permanent installation.
3.1. Door Handing Adjustment
The smart lock handles may need to be adjusted based on your door's opening direction (left or right). Follow the steps in the video below to correctly adjust the handle direction.
Video 1: Instructions for adjusting the door handle direction.
Visual Guide for Handle Adjustment:
Figure 9: Initial handle orientation and adjustment indication.
Figure 10: Detail of the mechanism for double tongue adjustment.
Figure 11: Left open direction configuration.
Figure 12: Right open direction configuration.
3.2. Smart Door Lock Installation Steps
This video demonstrates the complete installation process for the smart door lock. Ensure you have all necessary tools and components before starting.
Video 2: Smart Door Lock Installation Guide.
Key Installation Steps:
- Install Mortise: Insert the mortise into the door edge and secure it with screws.
- Install Front Panel: Ensure the triangle mark on the front panel's spindle mechanism points downwards.
- Insert Connecting Rods and Square Bar: Place the connecting rods and square bar into their respective positions on the front panel.
- Insert Front Panel into Door: Carefully guide the front panel, with its cables and rods, into the prepared holes in the door.
- Connect Cables: Connect the cables from the front panel to the back panel.
- Insert Back Panel into Door: Align the back panel and carefully insert it onto the door, ensuring cables are not pinched.
- Fix Back Panel with Screws: Secure the back panel to the door using the provided screws.
Figure 13: Step 1 - Installing the mortise.
Figure 14: Ensure the triangle mark points down.
Figure 15: Installing connecting rods and square bar.
Figure 16: Inserting the front panel into the door.
Figure 17: Connecting the internal cables.
Figure 18: Inserting the back panel.
Figure 19: Securing the back panel with screws.
4. Operating Instructions
4.1. Fingerprint Unlock
Place your registered finger on the fingerprint sensor. The lock will unlock if the fingerprint is recognized.
4.2. Passcode Unlock
Enter your registered passcode on the touchscreen keypad. The lock supports various passcode types:
- Permanent Code: For regular users like family members.
- Time-Limited Code: For visitors, valid for a specific duration.
- Recurring Code: For service providers like cleaners, valid on specific days/times.
- One-Time Code: For single-use access.
4.3. RFID Card Unlock
Tap your registered RFID card against the card reader area on the lock. The lock will unlock upon successful recognition.
4.4. Tuya Wi-Fi App Control
Use the Tuya Smart app on your smartphone to manage and control your lock remotely. Features include:
- Remote unlocking/locking.
- Adding and managing multiple users.
- Generating temporary or one-time passcodes.
- Viewing access logs and history.
- Receiving real-time notifications.
4.5. Mechanical Key Override
In case of emergencies or battery depletion, insert the mechanical key into the backup keyhole and turn to unlock the door manually.
5. Maintenance
- Battery Replacement: The lock requires 4 AA batteries. Replace them when the low battery warning is issued. To replace, remove the back panel cover, replace the old batteries with new ones, and reattach the cover.
- Cleaning: Wipe the lock's surface with a soft, dry cloth. Avoid using abrasive cleaners or solvents that may damage the finish or electronic components.
- Regular Checks: Periodically check that all screws are tight and the lock operates smoothly.
6. Troubleshooting
- Lock not responding: Check battery levels. If low, replace batteries or use the emergency USB power supply.
- Fingerprint not recognized: Ensure your finger is clean and dry. Re-register your fingerprint if issues persist.
- Passcode not working: Verify the passcode is correct and has not expired. Check for any
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