Introduction
This manual provides comprehensive instructions for the NIKICAM Mini Keychain Camera, Model HJD-02. This compact and lightweight digital camera is designed for portable photo and video capture, featuring 4K video recording and 64MP photo capabilities. Please read this manual thoroughly before using your camera to ensure proper operation and to maximize its features.
Package Contents
Verify that all items listed below are included in your package:
- 1 x NIKICAM Mini Keychain Camera
- 1 x 16GB TF Card (pre-installed)
- 1 x Type-C Cable
- 1 x Metal Buckle
- 1 x Lanyard
- 1 x User Manual

Image: All items included in the NIKICAM Mini Keychain Camera package.
Product Overview
Familiarize yourself with the camera's buttons and ports:

Image: Detailed view of the camera's buttons and their functions.
- Photo Button: Long press to turn on/off. Short press to take a photo or confirm selection. Short press (in video mode) to record/stop recording.
- Setting Button: Short press to access settings or choose photos to delete.
- Menu Button: Short press to switch between recording/photo modes. Short press (in playback mode) to exit/delete.
- Up/Down Button: Long press to turn flash light on/off. Short press to switch filters or navigate menus.
- Lanyard Hole: For attaching the included lanyard or metal buckle.
- TF Card Slot: For inserting the microSD card.
- Type-C Port: For charging and data transfer.
Setup
1. Inserting the TF Card
The camera requires a TF (microSD) card for storing photos and videos. A 16GB TF card is included and may be pre-installed.
- Locate the TF card slot on the side of the camera.
- Insert the TF card with the printed side facing up until it clicks into place.
- To eject the card, press it lightly until it springs out.

Image: Proper insertion of the TF memory card into the camera.
2. Charging the Battery
The camera has a built-in 300mAh battery. Ensure it is fully charged before first use.
- Connect the provided Type-C cable to the camera's Type-C port.
- Connect the other end of the cable to a USB power adapter (not included) or a computer's USB port.
- The camera can be used while charging. A full charge provides up to 50 minutes of continuous recording.

Image: Camera connected to a laptop via Type-C cable for charging.
3. Initial Power On
Long press the Photo Button to turn the camera on. The screen will illuminate.
Operating Instructions
Power On/Off
To power on the camera, long press the Photo Button. To power off, long press the Photo Button again.
Taking Photos
In photo mode, short press the Photo Button to capture an image. The camera features a 64MP sensor for high-resolution stills.
Recording Videos
To switch to video recording mode, short press the Menu Button until the video icon appears on the screen. Short press the Photo Button to start recording, and short press it again to stop recording. The camera supports 4K UHD 2160p video resolution.
Applying Filters
The camera includes 19 different filters. While in photo or video mode, short press the Up/Down Button to cycle through the available filters and apply them to your capture.
Using the Flash Light
To activate or deactivate the built-in flash light, long press the Up/Down Button.

Image: Comparison of flash light off and on for improved visibility in low light.
Viewing Photos and Videos
To enter playback mode, short press the Menu Button until you see your captured media. Use the Up/Down Buttons to navigate through your photos and videos. Short press the Menu Button again to exit playback mode.
Video: Demonstration of viewing captured content on the camera's screen.
Deleting Photos and Videos
While viewing a photo or video in playback mode, short press the Setting Button to access deletion options. Follow the on-screen prompts to confirm deletion.
Transferring Files to a Computer
To transfer your captured media, connect the camera to your computer using the provided Type-C cable. The camera will appear as a removable storage device, allowing you to copy files directly.

Image: Camera connected to a laptop for outputting files.
Video: Overview of the 4K 64MP Mini Retro Digital Camera's features and portability.
Maintenance
- Cleaning: Wipe the camera body with a soft, dry cloth. For the lens and screen, use a specialized lens cleaning cloth.
- Protective Film: Ensure the clear protective film on the lens and screen is removed before use for optimal image and display clarity.
- Storage: Store the camera in a cool, dry place away from direct sunlight and extreme temperatures.
- Water Exposure: This camera is not waterproof. Avoid exposing it to water or high humidity.
- Data Backup: Regularly transfer and back up your photos and videos to a computer or external storage device to prevent data loss.
Troubleshooting
Camera Not Turning On
- Ensure the battery is sufficiently charged. Connect the camera to a power source using the Type-C cable and allow it to charge for at least 30 minutes before attempting to power on again.
- Confirm that the Photo Button is being long-pressed (held down for a few seconds) to initiate power on.
Cannot Take Photos or Record Videos
- Check if the TF card is properly inserted into its slot.
- Verify that the TF card has sufficient free storage space. If full, transfer files to a computer and delete them from the card, or replace the card.
- Ensure the camera is in the correct mode (photo or video) by short pressing the Menu Button.
Poor Image or Video Quality
- Clean the camera lens with a soft, lint-free cloth.
- Ensure the protective film has been removed from both the lens and the screen.
- Check lighting conditions. For low light, activate the flash light by long pressing the Up/Down Button.
Files Not Transferring to Computer
- Ensure the Type-C cable is securely connected to both the camera and the computer.
- Try connecting to a different USB port on your computer.
- Test with a different Type-C cable if available.
- Restart both the camera and the computer.
Specifications
| Brand | NIKICAM |
| Model Name | HJD-02 |
| Video Resolution | 4K UHD 2160p |
| Photo Sensor Resolution | 64 MP |
| Effective Still Resolution | 48 MP |
| Screen Size | 1.54 inches |
| Battery Capacity | 300mAh Lithium Ion |
| Recording Capacity | Up to 50 minutes |
| Memory Storage | 16GB TF card (included), microSD compatible |
| Connectivity | USB (Type-C) |
| Dimensions (D x W x H) | 1.07" x 2.02" x 1.07" |
| Weight | 0.066 lbs (30g) |
| Photo Sensor Technology | CMOS |
| Supported File Format | JPEG |
Warranty and Support
Warranty Information
This NIKICAM Mini Keychain Camera (Model HJD-02) comes with a 30-day warranty from the date of purchase. This warranty covers manufacturing defects under normal use. Please retain your proof of purchase for warranty claims.
Customer Support
NIKICAM is dedicated to providing high-quality products and satisfactory customer service. If you encounter any issues or have questions regarding your camera, please refer to the contact information provided with your purchase or visit the official NIKICAM store online for assistance.