Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your Hidalife Keyless Entry Door Lock, Model HL-669. Please read this manual thoroughly before installation and use to ensure proper function and security.

Image: Front and back view of the Hidalife Keyless Entry Door Lock HL-669.
Key Features
- Easy Auto-Lock/Unlock Switch: Features a one-touch toggle for passage mode, allowing the door to remain unlocked for convenience.
- Enhanced Security: Constructed from heavy-duty zinc alloy with a sturdy bolt, anti-peeping code protection, and auto-lock after five incorrect entries.
- Keyless Entry: Supports up to 20 user codes, ideal for homeowners, rental hosts, and temporary access for services.
- Broad Compatibility: Adjustable latch fits 2-3/8" (60mm) or 2-3/4" (70mm) backset and standard US door openings of 2-1/8" (54mm).
- Clear Touchscreen Keypad: Large, clear numbers with a bright blue backlight for easy code entry, even at night.

Image: Visual comparison highlighting the heavy-duty zinc alloy construction and ANSI Grade 2 latch of the Hidalife lock.
Package Contents
Verify that all components are present before beginning installation:
- Front panel assembly
- Back panel assembly
- 2 Physical keys
- Mounting screws
- Instruction Manual (this document)
Installation
Door Compatibility Check
Before installation, ensure your door meets the following specifications:
- Door Holes: 2-1/8" (54mm) standard US door opening. (Does not fit 1-1/2" (38mm) door openings).
- Door Thickness: 1-3/8" (35mm) to 2" (50mm).
- Backset: Adjustable to fit 2-3/8" (60mm) or 2-3/4" (70mm).
- Latch Hole Type: Requires a rectangular latch hole. (Does not fit rounded latch holes).

Image: Diagram illustrating required door hole diameter, door thickness, backset, and acceptable latch hole shapes for installation.
General Installation Steps
While specific steps are detailed in the included printed manual, the general process involves:
- Prepare the door and door frame according to the compatibility requirements.
- Install the latch into the door edge.
- Install the exterior assembly (front panel) onto the door.
- Install the interior assembly (back panel) and secure it with mounting screws.
- Test the lock's mechanical function with the physical key.
- Install batteries (4x AAA, not included) and configure user codes.
Operation
Access Modes
The Hidalife HL-669 lock supports three primary access modes:
- Normal Mode: Unlock with a code, and the door will auto-lock after 5 seconds.
- Passage Mode: The door remains unlocked for continuous access.
- Security Mode: Only administrator codes or physical keys can unlock the door, restricting access for regular user codes.

Image: Visual representation of the three access modes: Normal, Passage, and Security, with descriptions of each.
User Code Management
The lock supports up to 20 user codes. Refer to the detailed programming instructions in your physical manual for adding, changing, or deleting codes. This feature is particularly useful for managing access for family members, tenants, or service providers.
One-Time Codes
For temporary access, such as for deliveries or housekeepers, you can generate one-time codes. These codes expire after a single use, enhancing security.

Image: Examples of situations where one-time codes are beneficial, such as for deliveries, housekeepers, Airbnb guests, and tutors.
Passage Mode Toggle
To activate or deactivate Passage Mode, use the One-Touch On/Off toggle switch located on the back panel of the interior assembly. When in Passage Mode, the door will remain unlocked until the mode is manually switched off.

Image: A hand demonstrating the manual ON/OFF toggle switch on the interior side of the lock for activating or deactivating passage mode.
Security Features
- Anti-Peeping Code Protection: Enter random digits before or after your actual code to prevent others from guessing your entry sequence.
- Intrusion Alert: The lock will automatically disable the keypad for a period after five consecutive incorrect code entries.

Image: Illustration of the anti-peeping password feature, showing how random digits can be added before and after the correct code for privacy.
Low Battery Alert
When the batteries are running low, the lock will beep 10 times after unlocking to remind you to replace them. Promptly replace all four AAA batteries to ensure continuous operation.

Image: A visual indicating the low battery alarm, showing a battery icon and the lock's keypad.
Automatic Lock Time
The automatic locking time can be adjusted from 2 to 99 seconds, allowing customization based on your preference and security needs.

Image: A graphic illustrating the adjustable automatic lock time feature, ranging from 2 to 99 seconds.
Vacation Mode
When Vacation Mode is enabled, all regular user codes are temporarily disabled. Only the administrator code or physical keys can unlock the door, providing enhanced security when you are away for extended periods.

Image: A family with luggage standing in front of a door with the Hidalife lock, representing the use of Vacation Mode for enhanced security during travel.
Maintenance
- Battery Replacement: Replace all four AAA batteries when the low battery alert is activated. Use high-quality alkaline batteries for optimal performance.
- Cleaning: Wipe the touchscreen and lock body with a soft, dry cloth. Avoid abrasive cleaners or solvents that could damage the finish or electronic components.
- Lubrication: Periodically check and lubricate the latch mechanism with a silicone-based lubricant if needed to ensure smooth operation.
Troubleshooting
- Lock not responding: Check battery levels and replace if necessary. Ensure the keypad is clean and free of debris.
- Codes not working: Verify that the correct code is being entered. Ensure the lock is not in Security Mode or Vacation Mode, which disables regular user codes.
- Door not locking/unlocking smoothly: Check for any obstructions in the door frame or latch. Ensure the latch hole is correctly aligned and clear.
- Keypad backlight not working: Check battery levels. If issues persist, contact customer support.
Specifications
| Feature | Specification |
|---|---|
| Brand | HIDALIFE |
| Model Name | HL-669 |
| Lock Type | Keypad |
| Material | Zinc Alloy |
| Color | Matte Black |
| Item Dimensions (L x W x H) | 8 x 3.62 x 7.6 inches |
| Item Weight | 3.91 pounds (1.78 Kilograms) |
| Special Features | Anti-Bump, Anti-Peeping Password, Auto-Lock, Touchscreen |
| Control Method | Touch |
| Power Source | 4x AAA Batteries (not included) |
| Door Compatibility | 2-1/8" (54mm) door opening, 1-3/8" to 2" (35-50mm) door thickness, 2-3/8" or 2-3/4" (60-70mm) backset |
Warranty and Support
For warranty information, technical support, or any questions regarding your Hidalife Keyless Entry Door Lock, please refer to the contact details provided in the packaging or visit the official Hidalife website. Keep your purchase receipt for warranty claims.




