Upgrade Firmware Sunplus Box Tv1 20- -
The device may be sold under different brand names (Diunamai, Dikom, Akai, etc.), but they all share the same core Sunplus technology. That means the upgrade methods described here will work regardless of which label is printed on the case.
– Make sure the Sunplus box is switched off.
, you must load the correct firmware file onto a FAT32-formatted USB drive, insert it into the device, and initiate the flashing process via the system's "S/W Upgrade" menu. This critical process stabilizes the multimedia TV box, patches streaming security vulnerabilities, improves decoder capabilities, and unlocks newer video formatting compatibility layers for smooth video playback. Upgrade Firmware Sunplus Box Tv1 20-
| Problem | Possible Cause | Solution | | :--- | :--- | :--- | | Box does not recognise the USB drive | Drive formatted incorrectly | Reformat the drive to and copy the firmware file to the root folder again | | “No Match File” error appears | Customer ID mismatch or wrong firmware version | Check your current Customer ID in the “Version” menu (press 1502 or 1503 on the remote). Use a Customer ID replacement tool to modify the new firmware file, or download a version that matches your ID | | Upgrade stops at “Erasing Flash” | Corrupted firmware file or failing flash memory | Re‑download the firmware from a trusted source. Try a different USB drive. If the problem persists, use the RS232 method to recover the box | | Box shows a black screen (no boot) after upgrade | Incomplete flash or incorrect firmware | This is a “bricked” state. Use the RS232 cable and a loader to flash the correct firmware again | | Timer still does not work after upgrading | Hardware timer bug | Try a different firmware version (e.g., the one from 4331_032_135_1023_29 for your model) |
Disclaimer: This process is generally safe, but firmware updates are performed at your own risk. Ensure you are downloading from reliable sources. The device may be sold under different brand
You can safely flash the firmware on your Sunplus device by carefully following these instructions: Step 1: Prepare the USB Storage Drive Insert a functional USB flash drive into your computer.
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This complete engineering guide covers the entire technical deployment process, troubleshooting solutions, and post-installation optimization strategies. Core Benefits of the 2026 Firmware Stack
If you own a (often labeled as “TV1 20-” on the PCB or case sticker), upgrading the firmware can fix boot loops, app crashes, or Wi-Fi issues. However, finding the correct firmware is tricky due to many clones. Follow this guide carefully.
Only use this if the box no longer boots.