1. Introduction
This document serves as an instruction manual for the Original New Charging Board designed for SUNMI M2 T7820 and T7281 devices. This component is a replacement part intended to restore charging functionality to your device. Please read this manual carefully before attempting any installation or repair.
2. Specifications
| Feature | Detail |
|---|---|
| Model Number | For SUNMI M2 T7820 T7281 |
| Origin | Mainland China |
| High-concerned chemical | None |
| Type | Touch Screen (Note: This refers to the device type the board is compatible with.) |
| Package Length | 18 cm |
| Package Width | 10 cm |
| Package Height | 6 cm |
| Package Weight | 0.12 kg |
The charging board is tested before shipping to ensure 100% working functionality.
3. Package Contents
The package typically includes the following items:
- 1x Original New Charging Board for SUNMI M2 T7820 T7281
- Basic repair tools (e.g., screwdrivers, pry tools)
- Adhesive for securing components
- Cleaning wipes (wet and dry)
4. Setup and Installation
WARNING: Installation of this component requires technical expertise and careful handling of electronic parts. Incorrect installation can damage your device. If you are not confident in performing the repair, it is highly recommended to seek professional assistance.
- Power Off Device: Ensure your SUNMI M2 T7820 or T7281 device is completely powered off and disconnected from any power source.
- Disassemble Device: Carefully open the device casing using appropriate tools. Refer to a device-specific disassembly guide or video for your exact model if available.
- Locate and Remove Old Charging Board: Identify the existing charging board. Disconnect any flex cables, connectors, and screws securing the old board. Gently remove it.
- Install New Charging Board: Align the new charging board with the mounting points. Secure it with the original screws. Reconnect all flex cables and connectors, ensuring they are properly seated.
- Reassemble Device: Carefully close the device casing, ensuring all clips and screws are properly fastened.
- Test Functionality: Connect the device to a charger to verify that it charges correctly.
5. Operation
Once the new charging board is correctly installed, the device's charging functionality should be restored to its original state. Simply connect a compatible USB charging cable to the device's charging port and then to a power adapter or computer to initiate charging.
- Ensure the charging cable is securely connected to both the device and the power source.
- Monitor the device's screen for the charging indicator to confirm proper operation.
6. Maintenance
To ensure the longevity and optimal performance of your charging port:
- Keep Port Clean: Regularly inspect the charging port for dust, lint, or debris. Use a soft, dry brush or compressed air to gently clean the port. Avoid using sharp objects that could damage the pins.
- Handle with Care: Avoid excessive force when inserting or removing the charging cable. Always pull the cable directly out, rather than at an angle.
- Use Quality Cables: Use original or certified charging cables to prevent damage to the port.
- Avoid Physical Damage: Protect the device from drops or impacts that could physically damage the charging port or internal components.
7. Troubleshooting
If you encounter issues after installing the new charging board, consider the following troubleshooting steps:
- Device Not Charging:
- Verify the charging cable and power adapter are functional by testing them with another device.
- Ensure the charging cable is fully inserted into the device's port.
- Check for any visible debris in the charging port and clean if necessary.
- Re-open the device and carefully inspect all flex cable connections to the charging board to ensure they are securely seated.
- Ensure the charging board itself is properly aligned and secured.
- Slow Charging:
- Use the original or a high-quality, fast-charging compatible power adapter and cable.
- Avoid using the device heavily while it is charging.
If problems persist after these steps, professional inspection may be required.
8. User Tips
No specific user tips were available from reviews or Q&A for this product at this time. Always ensure careful handling during installation.
9. Warranty and Support
For any issues related to the product, such as damage upon arrival, lost packages, or functional defects, please contact the seller directly. The seller offers support for various concerns, including:
- Refunds if items are damaged.
- Refunds if the package is lost.
- Assistance for fast delivery and other related issues.
It is recommended to keep your purchase records for any warranty claims or support requests.





