Installing incorrect firmware can permanently "brick" your TV. Ensure your board and panel match exactly before proceeding.
Commonly matches 8GB EMMC and 1GB RAM configurations 📂 Download & File Details Download MT5522S PC822 3840x2160 AKTV4636S part03 rar
Never turn off the TV during the update; this will destroy the mainboard. Download MT5522S PC822 3840x2160 AKTV4636S part03 rar
Place the extracted .pkg or .bin file directly in the root of the USB (not inside any folders). Download MT5522S PC822 3840x2160 AKTV4636S part03 rar