Desolder the 8-pin flash chip from the board (or use a test clip). Connect the chip to your PC via the programmer.
This "Backup Dump" is specifically for . It is not a standard USB update file; instead, it is a copy of the raw data stored on the motherboard's SPI flash chip. Download V53RL 8136 1366x768 China Backup Dump rar
Open the .rar file using WinRAR or 7-Zip to find the binary firmware file. Desolder the 8-pin flash chip from the board