Lockin G30-wifi bridge Q1
Lockin 4-in-1 Fingerprint Door Lock User Manual
Model: G30-wifi bridge Q1
1. Introduction
Thank you for choosing the Lockin 4-in-1 Fingerprint Door Lock. This smart door knob offers advanced security and convenience with multiple unlocking methods, including fingerprint recognition, password entry, mobile app control, and traditional physical key access. Designed for ease of use and robust security, it is suitable for various applications such as bedrooms, offices, garages, and apartments. This manual provides comprehensive instructions for installation, operation, maintenance, and troubleshooting to ensure optimal performance and longevity of your Lockin smart lock.

Figure 1.1: Lockin 4-in-1 Fingerprint Door Lock components, including the smart knob, Wi-Fi gateway, and a view of the mobile application interface.
2. Safety Information
- Do not expose the lock to extreme temperatures or direct sunlight for prolonged periods. This can affect battery life and electronic components.
- Avoid using corrosive cleaners or abrasive materials on the lock's surface. Use a soft, damp cloth for cleaning.
- Keep physical keys in a secure location away from the lock.
- Ensure proper installation as per the instructions to prevent malfunction and maintain security.
- Regularly check battery levels to avoid unexpected lockouts.
- Do not attempt to disassemble or repair the lock yourself. Refer to qualified service personnel for repairs.
3. Setup and Installation
3.1 Package Contents
Before beginning installation, verify that all components are present:
- Lockin Smart Door Knob (Interior and Exterior Assemblies)
- Latch Bolt
- Strike Plate
- Mounting Screws
- Physical Keys
- Wi-Fi Gateway (if purchased separately or included in bundle)
- USB Type-C Charging Cable
3.2 Battery Installation
The Lockin smart door knob uses a 400mAh rechargeable lithium battery.
- Locate the battery compartment on the interior assembly of the door knob.
- Open the battery cover.
- Insert the rechargeable lithium battery, ensuring correct polarity.
- Close the battery cover securely.

Figure 3.1: The Lockin smart door knob connected to a USB-C charging cable, illustrating the charging port location.
3.3 Physical Installation
Follow these steps to install the lock on your door. Ensure your door is compatible with standard door knob installations.
- Prepare the door: Ensure the door bore hole and backset are correctly sized.
- Install the latch bolt: Insert the latch bolt into the door edge and secure it with screws.
- Install the exterior assembly: Pass the spindle and wires through the latch bolt.
- Install the interior assembly: Connect the wires from the exterior assembly to the interior assembly. Align the interior assembly with the exterior assembly and secure with mounting screws.
- Test the lock: After installation, test the mechanical operation of the knob and latch.
3.4 Wi-Fi Gateway Setup (Optional)
To enable remote control and monitoring via the Lockin Home App, a Wi-Fi Gateway is required (sold separately).
- Plug the Wi-Fi Gateway into a power outlet within Bluetooth range of your smart lock and Wi-Fi signal.
- Download the "Lockin Home" App from your smartphone's app store.
- Follow the in-app instructions to add the gateway and then link your smart lock to the gateway.

Figure 3.2: The Lockin Wi-Fi Gateway showing its light indicator and USB-C charging port.
4. Operating Instructions
4.1 Unlocking Methods
The Lockin smart door knob offers four convenient ways to unlock your door:

Figure 4.1: Visual representation of the four unlocking methods available with the Lockin smart lock: fingerprint, password, mobile application, and physical key.
- Fingerprint Unlock: Place your registered finger on the fingerprint sensor. The lock will unlock in approximately 0.2 seconds. The lock supports up to 20 fingerprint registrations.
- Password Unlock: Enter your personalized 6-digit password on the keypad. The lock supports up to 20 personalized passwords.
- App Unlock: Use the Lockin Home App on your smartphone to unlock the door remotely (requires Wi-Fi Gateway) or via Bluetooth when in close proximity.
- Physical Key Unlock: In case of emergency or low battery, use the provided physical key to unlock the door.
4.2 Smart APP Control
The Lockin Home App provides comprehensive control and management features for your smart lock.

Figure 4.2: A user interacting with the Lockin Home App on a smartphone, demonstrating remote access management capabilities.

Figure 4.3: Key features of the Lockin Home App, including keyless entry, unlock record review, auto-lock settings, and access sharing.
- User Management: Add or remove users, assign unique fingerprints and passwords.
- Temporary Codes: Generate one-time or time-limited access codes for guests.
- Unlock Records: View a history of all lock and unlock events, including method and user.
- Remote Control: Lock or unlock your door from anywhere using the app (requires Wi-Fi Gateway).
- Settings: Adjust lock settings, including auto-lock duration and privacy mode.
4.3 Lock Modes
The Lockin smart door knob supports three operational modes to suit different situations:

Figure 4.4: Explanation of the three lock modes: Passage mode (always unlocked), Normal mode (auto-lock), and Privacy mode (double-lock, administrator access only).
- Passage Mode: The door remains unlocked and can be opened without verification. Ideal for high-traffic areas or when you don't need security.
- Normal Mode (with auto-lock): After unlocking, the door will automatically re-lock within 5 seconds of detecting it is closed. This is the standard secure mode.
- Privacy Mode: Activated by turning the thumb turn to the lock icon on the interior side. In this mode, the lock is double-locked, and only the administrator's fingerprint or physical key can unlock it from the outside, providing enhanced privacy and security.
4.4 Emergency Charging
In case the battery runs low, the smart lock can be temporarily powered via a USB Type-C cable for emergency unlocking.
- Connect a USB Type-C cable to the charging port on the exterior assembly of the lock.
- Connect the other end of the cable to a power source (e.g., power bank, USB charger).
- The LED indicator will flash blue during charging. Once sufficient power is supplied, you can use a registered fingerprint or password to unlock the door.
- A full charge typically takes 3-5 hours, and the LED indicator turns green when fully charged.
5. Maintenance
- Battery Charging: Recharge the internal 400mAh lithium battery when the low battery indicator appears or approximately every 6 months with typical use. Use the provided USB Type-C cable.
- Cleaning: Wipe the lock's surface with a soft, dry, or slightly damp cloth. Do not use harsh chemicals, abrasive cleaners, or excessive moisture.
- Fingerprint Sensor: Keep the fingerprint sensor clean and free of dirt or debris to ensure accurate recognition.
- Mechanical Parts: Periodically check the door knob and latch for smooth operation. Do not lubricate internal electronic components.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Lock does not respond or unlock. | Low battery; incorrect fingerprint/password; mechanical jam. | Charge the lock via USB-C; re-enter correct credentials; check for obstructions around the latch. |
| Fingerprint not recognized. | Fingerprint sensor dirty; unregistered fingerprint; finger not placed correctly. | Clean the sensor; ensure the fingerprint is registered; place finger flat on the sensor. |
| App cannot connect to the lock. | Bluetooth off; Wi-Fi Gateway offline; lock out of range. | Enable Bluetooth; check gateway power and internet connection; move closer to the lock. |
| Auto-lock not functioning. | Lock is in Passage Mode; sensor obstruction. | Switch to Normal Mode in app or manually; ensure door sensor is clear. |
7. Specifications
| Feature | Detail |
|---|---|
| Brand | Lockin |
| Model Number | G30-wifi bridge Q1 |
| Unlocking Methods | Fingerprint, Password, App (Bluetooth/Wi-Fi), Physical Key |
| Fingerprint Recognition Speed | 0.2 seconds |
| Fingerprint Capacity | Up to 20 |
| Password Capacity | Up to 20 personalized passwords |
| Battery Type | 400mAh Rechargeable Lithium Battery |
| Charging Port | USB Type-C |
| Battery Life | Approximately 6 months per charge |
| Lock Modes | Passage Mode, Normal Mode (Auto-lock), Privacy Mode |
| Connectivity | Bluetooth (direct), Wi-Fi (via optional Gateway) |
| Color | Black |
| Recommended Uses | Home, Bedroom, Office, Garage, Apartments |
8. Warranty and Support
Lockin products are designed for reliability and performance. For information regarding warranty coverage, technical support, or service inquiries, please refer to the official Lockin website or contact Lockin customer service. Keep your purchase receipt as proof of purchase for warranty claims.
For further assistance, visit the Lockin Store on Amazon.
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