Plug the TV into the power outlet while still holding the button.
This specific firmware package is designed for hardware with the following specs: TP.MT5522S.PC822 (or MT5522S.PC822 ) TV Model: AKTV4636S (Akai or similar brand variants) Resolution: 3840 x 2160 (4K UHD) Download MT5522S PC822 3840x2160 AKTV4636S part03 rar
Release the button when the standby light starts flashing (indicating the update has started). Plug the TV into the power outlet while