1366x768 (standard for 24-inch to 32-inch HD panels).
Always back up your original firmware if possible, as installing the wrong resolution or software can cause the screen to display distorted images or fail to boot. Download RR8501 C816A 1366x768 rar
Typically a single BIOS .bin file contained within a .rar archive. Download Sources 1366x768 (standard for 24-inch to 32-inch HD panels)
Insert the USB into the TV's port while it is unplugged. Plug the TV into power; a flashing standby light usually indicates the update is in progress. Download RR8501 C816A 1366x768 rar