To download the firmware for the with the mainboard TP.MT5522S.PC822

: Do not power off the TV during this process, as it can brick the mainboard. Technical Verification Board : TP.MT5522S.PC822 Panel : CC575PU1L (often associated with 58-inch 4K panels).

board are hosted on sites like OneTV , which lists firmware with a similar configuration (e.g., 602 MB file size).

If you obtain the .zip or .bin file, the typical manual update process for this board is as follows: : Use a FAT32-formatted USB drive.

Press and hold the on the TV panel (not the remote) and then plug in the power cord.