Similar software can be found on sites like Softwarezone.ga or dedicated Facebook groups like China LED-LCD Tv Bios Bin . USB Installation Procedure
Insert the USB drive into the TV's USB port while the power is off. Download RD8503 General 1920x1080 USB rar
). Firmware for this board is typically distributed in .rar or .zip archives containing a .bin file used for USB flashing. Similar software can be found on sites like Softwarezone
The is a common universal LCD/LED TV controller motherboard (often labeled as T.RD8503.03 or T.RD8503.A8 Download RD8503 General 1920x1080 USB rar