Flashing firmware carries risks. Always ensure you have a backup of your original BIOS before proceeding. Incorrect firmware can lead to a black screen or non-responsive hardware. RR8501 USB Firmware Software Bios Bin - Lab-One Forum
The firmware for the motherboard with a 1024x768 resolution is available as a USB upgrade file. This board is a common universal LCD/LED TV mainboard used for various Chinese-brand televisions. Firmware Download & Technical Details Board Model: RR8501.C031A V60 Download RR8501 C031A V60 1024x768 USB rar
Place the firmware file directly in the root directory of the USB drive (do not put it in a folder). Update Process: Power off the TV. Insert the USB drive into the TV's USB port. Flashing firmware carries risks
1024x768 (standard for many 15"–19" LCD panels) Download RR8501 C031A V60 1024x768 USB rar