Insert the USB into the TV, power it on, and the board should automatically begin the "Eraser" and update process. The standby LED will typically blink rapidly during this time.
Copy the extracted file (typically named allupgrade_5510...pkg ) to the root of a FAT32-formatted USB drive. Download MT5510I PB801 1366X768 JVC REF30 part05 rar
Download all parts of the RAR archive (Part 1 through the final part). Extract them into a single folder to get the main firmware file. Insert the USB into the TV, power it
Repositories like The New 1+8G Board on AliExpress or Facebook Tech Groups often host these files for repair purposes. Download all parts of the RAR archive (Part
1366x768 (HD) and 1920x1080 (Full HD)
You can check the JVC Global Support Page or the JVCKenwood Firmware Update Procedure for official model-specific updates, though generic Chinese mainboards like the MT5510I are rarely listed there directly. Installation Method