The (found on a sticker on the back of the LCD panel itself). lcd tv led tv smart tv software – Telegram
If you have a (like RT809F) or if you are trying to update via USB port . The (found on a sticker on the back of the LCD panel itself)
: If the USB method is unavailable, you will need an RT809F or CH341A programmer to flash the firmware directly onto the board's SPI Flash IC. If you'd like, let me know: let me know: