hp elitebook 850 G4 bios bin

[mosfet]

hi, the motherboard is a 6050A2728501 MB-A01, the serial number is 5CG7151JJX, the notebook turns on but with a black screen and a high speed fan, I think the problem is one or both of the corrupt bios, I did the bios bekup from U365 chip: MX25L12873 but reading the DMI it shows an 850 G3 while on the rear cover it says 850 G4, I don't know which bios to look for or maybe they are the same?
Thank you