1. Introduction
Welcome to the Lockly Secure Plus Smart Door Lock. This manual provides detailed instructions for the installation, operation, maintenance, and troubleshooting of your new smart lock. Designed for enhanced security and convenience, the Lockly Secure Plus offers multiple ways to access your home, including a patented PIN Genie digital keypad, 3D biometric fingerprint sensor, and mobile app control.
2. Product Overview
The Lockly Secure Plus is a versatile smart lock offering advanced security features and convenient access options. It is built with a solid aluminum construction and features an OLED panel for intuitive interaction.

Image: Lockly Secure Plus Smart Door Lock and its mobile application interface.
Key Features:
- Multiple Ways to Unlock: Offers patented PIN Genie digital keypad, 3D biometric fingerprint sensor, APP control, Voice Control (with optional Wi-Fi hub), Scan to Open QR code (with optional Wi-Fi hub), and physical key.
- Secure Smart Digital Lock: Features a peek-proof numeric keypad with dynamically shuffling digits to prevent code guessing.
- Self-learning AI Smart Lock: 3D biometric fingerprint sensor provides quick access (0.3s recognition) and stores up to 99 fingerprints, with AI learning to improve speed and accuracy.
- Mobile App Control: Remotely lock and unlock, manage access, and monitor activity via the Lockly App.
- Voice Control: Compatible with Amazon Alexa or Google Assistant-enabled devices when paired with the optional Lockly Secure Link Wi-Fi Hub.
- Real-Time Monitoring & Alerts: Receive smartphone alerts for lock status, auto-lock, and one-touch lock features.
- Offline Access Code (OAC): Grant temporary access codes that work without Wi-Fi or internet, ideal for guests.
- Easy Installation: Designed for straightforward installation with detailed video guides available.
Video: An overview of the Lockly Secure Plus Smart Lock features and capabilities.
3. Setup and Installation
Before beginning installation, ensure your door meets the compatibility requirements. Refer to the door compatibility diagram below and the detailed installation videos for guidance.

Image: Door compatibility measurements for proper installation.
Installation Steps:
- Preparation: Remove any existing lockset and prepare the door according to the provided template and measurements.
- Install the Lockset: Attach the latch bolt into the door. Ensure the curved surface of the latch bolt faces the direction the door closes.
- Change Handle for Right or Left Swing Doors: The lock ships default for right-swing doors. If you have a left-swing door, follow the instructions in the video to change the handle's orientation.
- Prepare Lock for Installation: Secure the upper portion of the lockset, optionally using fasteners if drilling holes.
- Install the Lock (Exterior & Interior): Pass the spindle and cables through the door, then secure the exterior and interior assemblies.
- Install the Door Strike: Attach the dust box and strike plate to the door jamb.
- Insert Batteries: Place four AA batteries into the battery box and close the cover.
Official Installation Videos:
Video: Detailed guide on how to install the Lockly Secure Plus - PGD628F.
Video: PGD628F Installation Guide, providing step-by-step visual instructions.
For additional installation details, you can refer to the official PDF manuals available on the product page.
4. Operating Your Lockly Secure Plus
Unlocking Methods:
- PIN Genie Digital Keypad: The patented keypad shuffles numbers after each use, making it impossible for onlookers to guess your code. Simply enter your 6-8 digit code.
- 3D Biometric Fingerprint Sensor: Quickly unlock your door in 0.3 seconds. The sensor stores up to 99 fingerprints and only recognizes physical fingers, preventing unauthorized access from lifted or replicated prints.
- Lockly App Control: Use the Lockly app on your smartphone to lock or unlock your door with a simple tap.
- Voice Control: Integrate with Amazon Alexa or Google Assistant for voice commands (requires optional Lockly Secure Link Wi-Fi Hub).
- Offline Access Codes (OAC): Generate unique, time-sensitive codes from the app that guests can use without needing the app or internet connection at the lock.
- Physical Key: Two backup keys are included for traditional manual unlocking.

Image: The patented PIN Genie keypad with dynamic number shuffling for enhanced security.

Image: Fast and secure 3D Biometric Fingerprint recognition.

Image: Controlling your Lockly smart lock via the mobile app.

Image: Voice control functionality with smart home assistants.
App Features:
- Access Management: Grant permanent, recurring, or temporary access to family, friends, or visitors.
- Real-Time Monitoring & Alerts: Receive notifications on your smartphone for every lock and unlock event.
- Access Logs: View a history of who entered and when.
- Programmable Auto-Lock: Customize the auto-lock duration from 5 to 300 seconds.

Image: Access history and real-time monitoring through the Lockly app.

Image: The programmable auto-lock feature for peace of mind.
5. Maintenance
To ensure optimal performance and longevity of your Lockly Secure Plus smart lock, regular maintenance is recommended:
- Battery Replacement: The lock uses 4 AA batteries. Replace them when you receive low battery alerts via the app or on the lock's display.
- Cleaning: Use a soft, dry cloth to clean the keypad and fingerprint sensor. Avoid abrasive cleaners or solvents that could damage the finish or electronics.
- Firmware Updates: Periodically check the Lockly app for available firmware updates to ensure your lock has the latest features and security enhancements.
6. Troubleshooting
If you encounter issues with your Lockly Secure Plus, try the following common troubleshooting steps:
- Keypad Not Responding: Ensure batteries are not depleted. Try pressing the Lockly logo to wake the keypad.
- Fingerprint Sensor Issues: Ensure your finger is clean and dry. Re-register your fingerprint if recognition is inconsistent.
- App Connectivity Problems: Ensure Bluetooth is enabled on your phone and you are within range. If using Wi-Fi, check your Secure Link Wi-Fi Hub connection and internet access.
- Lock Not Responding: Try replacing the batteries. If the issue persists, use the physical key for access and contact support.
- Resetting the Lock: Refer to the full user manual or contact support for instructions on performing a factory reset, which may resolve persistent issues.
7. Specifications
| Feature | Detail |
|---|---|
| Brand | Lockly |
| Model Name | Lockly Secure Plus |
| Item Model Number | PGD628F |
| Color | Satin Nickel |
| Material | Zinc Alloy |
| Special Features | Waterproof, Biometric, Touchscreen, Patented PIN Genie Technology, Bluetooth, Smartphone, eKeys & eBadges, Offline Access Codes™ |
| Lock Type | Smart Lock |
| Item Dimensions L x W x H | 7.8 x 2.9 x 7.2 inches |
| Item Weight | 6.48 Pounds |
| Power Source | 4 AA batteries (included) |
| Connectivity Protocol | Bluetooth, Wi-Fi (with optional hub) |
8. Warranty and Support
Lockly provides professional customer service and technical support. For any questions or assistance, please refer to the following resources:
- Online Support: Visit the official Lockly website for FAQs, troubleshooting guides, and more.
- Customer Service: Lockly's professional customer service team is available 24/7 to assist you.
- User Manual (PDF): For a comprehensive guide, download the User Manual (PDF).
- Installation Manual (PDF): For detailed installation steps, download the Installation Manual (PDF).





