1. Introduction
The ULTRALOQ Bolt Fingerprint WiFi Smart Lock offers advanced security and convenient access for your home. This smart deadbolt integrates seamlessly with Apple Home, Siri, and Alexa, providing multiple keyless entry options including fingerprint ID, a responsive keypad, and remote control via a smartphone app. Designed for easy installation and durability, it features BHMA certification and an IP65 weather-resistant rating.
Video: An overview of the ULTRALOQ Bolt Fingerprint Smart Lock's features and capabilities.
2. What's in the Box
Your ULTRALOQ Bolt Fingerprint Smart Lock package includes all necessary components for installation and operation:
- ULTRALOQ Bolt Fingerprint Smart Wifi Deadbolt with Door Sensor
- 2 Emergency Keys
- 8 AA Batteries (included)
- Installation Kit and User Guide

Image: All components included in the ULTRALOQ Bolt Fingerprint Smart Lock package.
3. Setup and Installation
Installation of the ULTRALOQ Bolt Fingerprint Smart Lock is designed to be straightforward, typically requiring only a screwdriver and about 10 minutes. No wiring is required.
3.1 Prepare the Door
Ensure your door meets the following specifications:
- Door Thickness: 1⅜" to 2¼"
- Backset: 2⅜" or 2¾"
- Diameter of the hole: 1½" to 2⅛"

Image: Diagram showing required door dimensions and hole sizes for installation.
3.2 Install the Bolt and Strike
Insert the deadbolt into the door edge, ensuring the "UP" icon on the bolt is facing upwards. Secure it with the provided screws. Install the strike plate on the door frame.
3.3 Install Exterior and Interior Assemblies
Feed the cable from the exterior assembly through the door hole and connect it to the interior assembly. Secure both units to the door using the mounting plate and screws. Ensure the white paint side of the cable connector is facing up when connecting.
3.4 Install Batteries and Door Sensor
Insert the 8 AA batteries into the interior assembly. Install the door sensor on the door frame, aligning it with the deadbolt. The sensor helps with auto-lock/unlock features.
3.5 Direction Calibration
After installation, keep the lock in the unlock position and press the number '5' on the keypad for 5 seconds to calibrate the lock direction.
3.6 Video Installation Guide
Video: Detailed installation guide for the ULTRALOQ Bolt Series Smart Lock. This video demonstrates step-by-step instructions for preparing the door, installing components, and calibrating the lock.
4. Operating Instructions
The ULTRALOQ Bolt Fingerprint Smart Lock offers multiple convenient ways to lock and unlock your door:
- Fingerprint ID: Use your registered fingerprint for quick access. The AI-driven scanner offers 99.8% accuracy and 0.3s unlock speed.
- Anti-peep Keypad: Enter your code on the keypad. You can add random digits before or after your actual code to prevent others from guessing it.
- Smartphone App: Lock or unlock your door remotely using the U-home app on your smartphone.
- Voice Control: Integrate with Apple Home, Siri, or Alexa to lock and unlock your door using voice commands.
- Auto Unlock: The lock can automatically unlock as you approach your door with your smartphone (requires location services and Bluetooth).
- Mechanical Keys: Two backup mechanical keys are provided for traditional access.

Image: A hand using the fingerprint scanner on the ULTRALOQ Bolt Smart Lock for keyless entry.

Image: A smartphone screen showing integration with Apple Home, Alexa, Google Home, and SmartThings for unlocking the door.
4.1 Auto Lock Feature
The Smart Lock automatically locks if your door closes (detected by the door sensor) and can be configured to auto-lock after a set period. This ensures your home is always secure.

Image: A person with groceries approaching a door, illustrating the Smart Auto Unlock feature where the lock unlocks as you arrive.
5. App Features (U-home App)
The U-home app provides comprehensive control and monitoring of your ULTRALOQ Bolt Smart Lock:
- Remote Control: Lock, unlock, and manage access from anywhere via a 2.4G WiFi network.
- Guest Access Management: Share ekeys or codes remotely for permanent access, specific dates, or periods of time. Manage up to 50 access codes.
- Activity Log: View lock history to see who entered and when.
- Real-time Notifications: Receive instant alerts for lock activity or when the door is left open.
- Smart Home Automations: Pair with other U-home smart products or third-party devices (Alexa, Apple Home, Google Home, SmartThings, IFTTT) to create automated routines (e.g., lights turn on when the door unlocks).

Image: A smartphone showing the U-home app interface for remote lock control and notifications.
5.1 Apple Home Integration
The ULTRALOQ Bolt is fully integrated into Apple Home. Unlock with the Apple Home app, iPhone, or Apple Watch. Share access with guests and use a HomePod, Apple TV, or iPad as a home hub for remote control via Siri and automations.
Video: Demonstrates the ULTRALOQ Bolt Fingerprint Smart Lock's compatibility and features when integrated with Apple Home and Siri voice commands.
6. Maintenance
- Battery Replacement: The lock is powered by 8 AA batteries, providing up to 1 year of life with regular use. Replace batteries when the app indicates a low battery alert.
- Weather Resistance: The lock has an IP65 rating, making it dust and weatherproof. It is built to withstand temperatures from -4°F to 149°F.
- Cleaning: Use a soft, dry cloth to clean the keypad and fingerprint scanner. Avoid abrasive cleaners or solvents.

Image: Illustration of the ULTRALOQ Bolt's battery compartment, highlighting its 1-year battery life with 8 AA batteries.
7. Troubleshooting
If you encounter issues with your ULTRALOQ Bolt Smart Lock, consider the following:
- Fingerprint Recognition: Ensure your finger and the scanner are clean and dry. Try re-registering your fingerprint from multiple angles for better accuracy.
- Auto Unlock/Lock Issues: Verify that the door sensor is correctly installed and paired. Check your smartphone's location services and Bluetooth settings.
- Shared User Access: Some users have reported intermittent issues with shared user fingerprints or auto-unlock. Ensure the app and lock firmware are up to date. Keypad codes are generally more consistent for shared users.
- Connectivity: Ensure your lock is connected to a stable 2.4G WiFi network.
8. Specifications
| Feature | Detail |
|---|---|
| Brand | ULTRALOQ |
| Model Name | BOLT-F-NK |
| Lock Type | Biometric, Combination Lock, Deadbolt, Keypad |
| Special Features | BHMA Certified, Works with Apple Home and Siri, Android/IOS Phone Remote Control, AI-driven Fingerprint Scanner, Door Sensor Included, Auto Lock/Unlock, Glove-friendly Anti-peep and Fingerprint-resistant Keypad, No Drilling Required, 2 Backup Keys, Double Battery Life |
| Material | Nickel, Zinc |
| Item Dimensions (L x W x H) | 2.96 x 1.25 x 2.96 inches |
| Item Weight | 1 pounds (16 ounces) |
| Color | Black |
| Connectivity Protocol | Bluetooth, Wi-Fi |
| Controller Type | Amazon Alexa, Apple HomeKit, Google Assistant, IFTTT, SmartThings |
| Batteries | 8 AA batteries required (included) |
| Battery Cell Type | Alkaline |
| UPC | 850056978712 |
9. Warranty and Support
The ULTRALOQ Bolt Fingerprint Smart Lock comes with a lifetime mechanical warranty and an 18-month electronic warranty.
For assistance, please contact ULTRALOQ support:
- Phone Support: Monday–Friday, 7 AM–6 PM PST
- Email Assistance: 24/7





