board are hosted on sites like OneTV , which lists firmware with a similar configuration (e.g., 602 MB file size).
, you can find the software files on specialized TV repair and technical forums. This specific model is a Smart Android TV using the Mediatek MT5522S chipset. Technical Repositories : Files for the TP.MT5522S.PC822
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. board are hosted on sites like OneTV ,
Keep holding the button until the "Software Updating" screen appears on the TV.
How to update the firmware on the SMART Board GX (V4) Plus (2026) Technical Repositories : Files for the TP
: 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).
: The site KenotronTV and various Telegram groups often host USB-upgradeable versions of this firmware for various brands (Skyline, Akai, Eurostar) using the same board. Installation Steps Technical Verification Board : TP
Press and hold the on the TV panel (not the remote) and then plug in the power cord.