: Place the extracted .img file into the root directory of the USB drive.

: Offers the Firmware for Anderson LD5536 which uses the TP.SK708D.PC821 board.

The RAR archive typically contains a USB update image file (often named allupgrade_aml972_8G_1G_sos.img ). This is used to recover TVs that are stuck on the logo or experiencing software malfunctions. Where to Find the Download

: Pages like Electro-Support often share direct download links for universal board software. Installation Steps