1. Introduction
This manual provides comprehensive instructions for the operation and maintenance of your COBY MP823-4GBLK 2-Inch 4GB Video MP3 Player. Please read this manual thoroughly before using the device to ensure proper functionality and to maximize your user experience.
2. Product Overview
2.1 Key Features
- 2-inch color TFT LCD touchscreen for intuitive navigation.
- Integrated 4GB flash memory for storing media files.
- Supports playback of music, video, photos, and text files.
- Built-in FM radio for listening to your favorite stations.
- ID3 and LRC support for displaying song and lyric information.
- USB 2.0 Hi-speed connectivity for fast file transfers.
- Integrated rechargeable Lithium-Ion battery.
- Compact and portable design.
2.2 Device Components

Figure 1: Front view of the COBY MP823-4GBLK MP3 Player, showing the 2-inch touchscreen display with icons for Music, Photo, Video, Radio, Settings, and Explorer.

Figure 2: Top and bottom view of the COBY MP823-4GBLK MP3 Player, indicating the Mini USB Port, 3.5mm Audio Port, Power Button, and Flash Memory location.
- Touchscreen Display: 2-inch TFT LCD for interacting with the device.
- Power Button: Located on the top edge for turning the device on/off and locking the screen.
- Mini USB Port: For charging the device and transferring files to/from a computer.
- 3.5mm Audio Port: For connecting headphones or external speakers.
- Internal Flash Memory: 4GB storage capacity.
3. Setup
3.1 Initial Charging
Before first use, fully charge the device. Connect the supplied Mini USB cable to the player's Mini USB port and the other end to a powered USB port on a computer or a compatible USB wall adapter (not included). The device will display a charging indicator. Wait until the battery indicator shows a solid green bar, indicating a full charge. This may take several hours.
Note: If the device does not power on or hold a charge, ensure it is connected to a reliable power source and allowed sufficient time to charge. Older units may require extended charging periods or may have reduced battery capacity due to age.
3.2 Connecting to a Computer
To transfer files, connect the MP3 player to your computer using the Mini USB cable. The device will appear as a removable disk drive on your computer. You can then drag and drop music, video, photo, and text files into the appropriate folders on the player's internal memory.
The COBY MP823-4GBLK supports USB 2.0 Hi-speed for efficient file transfers.
4. Operating Instructions
4.1 Power On/Off and Screen Lock
- To Power On: Press and hold the Power button until the screen illuminates.
- To Power Off: Press and hold the Power button until a power-off option appears on the screen, then confirm.
- To Lock/Unlock Screen: Briefly press the Power button to lock or unlock the touchscreen.
4.2 Navigating the Touchscreen Interface
The device features an intuitive touchscreen interface. Tap icons to select applications or options. Swipe to navigate through menus or lists.
4.3 Music Playback
- From the main menu, tap the "Music" icon.
- Browse your music library by artist, album, genre, or all songs.
- Tap a song to begin playback.
- During playback, use the on-screen controls for play/pause, skip track, volume adjustment, and repeat/shuffle modes.
- The player supports ID3 tags and LRC files for displaying song and lyric information.
4.4 Video Playback
- From the main menu, tap the "Video" icon.
- Select the video file you wish to play.
- Use the on-screen controls for playback management.
4.5 Photo Viewing
- From the main menu, tap the "Photo" icon.
- Browse through your stored images. The device supports BMP, GIF, and JPG formats.
- Tap an image to view it in full screen.
4.6 Text Reading
- From the main menu, tap the "Explorer" or relevant text icon.
- Navigate to your text files and tap to open.
4.7 FM Radio
- Connect headphones to the 3.5mm audio port; they act as the antenna.
- From the main menu, tap the "Radio" icon.
- Use the on-screen controls to scan for stations, tune manually, or select from presets.
5. Maintenance
5.1 Cleaning
Wipe the device with a soft, dry, lint-free cloth. Do not use liquid cleaners or abrasive materials, as they may damage the screen or casing.
5.2 Storage
Store the MP3 player in a cool, dry place away from direct sunlight and extreme temperatures. If storing for an extended period, ensure the battery is partially charged (around 50%) to prolong its lifespan.
5.3 Battery Care
To maintain battery health, avoid fully discharging the device frequently. Recharge the battery when the low battery warning appears. If the device is not used for a long time, charge it periodically (e.g., every 3-6 months) to prevent deep discharge.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not power on. | Low or depleted battery. | Connect to a power source and charge for at least 2-3 hours. Ensure the charging indicator is active. |
| Battery does not hold a charge or drains quickly. | Battery degradation (common for older devices) or improper charging. | Ensure the device is fully charged as per Section 3.1. If the issue persists, the internal battery may have reached the end of its lifespan. |
| Cannot transfer files to/from computer. | Incorrect USB connection or driver issue. | Ensure the USB cable is securely connected to both the player and the computer. Try a different USB port or cable. Verify the device appears as a removable disk. |
| No sound from headphones. | Headphones not properly connected or faulty. Volume too low. | Ensure headphones are fully plugged into the 3.5mm audio port. Test with another pair of headphones. Increase the volume. |
| FM Radio not receiving stations clearly. | Headphones not connected or poor signal. | Ensure headphones are connected as they serve as the antenna. Try moving to an area with better signal reception. |
7. Specifications
| Feature | Detail |
|---|---|
| Model Name | MP823-4G |
| Display | 2-inch Color TFT LCD Touchscreen |
| Internal Memory | 4GB (4096 MB) Flash Memory |
| Supported Media | Music, Video, Photos, Text |
| Photo Formats | BMP, GIF, JPG |
| Special Features | Integrated FM Radio, ID3 & LRC Support |
| Connectivity | USB 2.0 Hi-speed (Mini USB port) |
| Audio Output | 3.5mm Headphone Jack |
| Battery | Rechargeable Lithium-Ion (included) |
| Product Dimensions | 1.5 x 2.5 x 0.25 inches |
| Item Weight | 6.4 ounces |
8. Warranty and Support
For warranty information or technical support, please refer to the documentation included with your purchase or visit the official Coby website. Contact information for customer service can typically be found on the manufacturer's support pages.
No official product videos are available for this model at this time.





