The tv came with no HDMI inputs with short circuit lines from the cpu to the input pins. Got another board from a group source and wrote these dumps on it and the tv worked well.
Procedure: 1. Extract the files to the root of the formatted flash card (fat32) files: • mb130_en.bin • mb130_RomBoot_AMZ.bin • mb130_PM51_connected.bin • usb_auto_update_G10.txt 2. Disconnect the power from the TV 3. Insert the flash card into USB1 4. Press the OK button on the remote control and insert the plug back into the socket Note: Keep pressing OK until the Led indicator flashes quickly 5. As soon as the indicator flashes quickly, you can release the button on the remote control The automatic firmware update will begin 6. The firmware is complete if the indicator stops flashing quickly