Extract the allupgrade_5522_8G_1G_ref56.pkg (or similar .pkg file) from the .rar archives. Copy the .pkg file directly to the root of the USB drive. Unplug the TV from the wall. Plug in the USB drive. Hold the physical on the TV set. Plug in the power cord while holding the button.
The text "Download MT5522S PC822 3840x2160 AKTV4636S part02 rar" refers to a needed for repairing a television equipped with a TP.MT5522S.PC822 mainboard . Download MT5522S PC822 3840x2160 AKTV4636S part02 rar
When the indicator light flashes (red/green), release the button and wait for the update to complete. To get you the exact file for Extract the allupgrade_5522_8G_1G_ref56