Insert the USB into the TV's USB port while the power is off.

Use a USB flash drive formatted to FAT32 . Ensure the drive is empty before copying files.

Copy the extracted .bin file to the root directory of your USB drive.

Multi-part RAR archive. You must download all parts (e.g., part1 through part10) into the same folder and extract only the first part to reconstruct the complete firmware file. How to Install the Firmware

: Frequently provides multi-resolution and multi-remote software updates for S368 series boards.

Extract the downloaded RAR parts. The resulting file is usually named allupgrade_v368_sos.bin or similar. USB Method:

The file is part of a split-archive firmware update for the S368LA1.5 (or S368A1.5) universal Android Smart TV motherboard . This specific board is used in LED TVs ranging from 24 to 55 inches and typically runs on Android 9. Key Specifications & Context Board Model: S368LA1 / S368LA1.5. Resolution: 1920x1080 (Full HD) [Query].