It is in program mode but it turns on

I connected an external monitor and the bios actually works!!! Maybe I accidentally disconnected the monitor somewhere, but that's a "mechanical" issue. Thank you very much for fixing the bios

Thank you very much. There is a better response, because the caps lock and num lock do not blink anymore, but the screen is still black. There is even a response to the touchpad - when I move it, the keyboard lights up.

I downloaded a theoretically working bios from this forum, there is a reaction because the keyboard lights up, the fan runs at full speed but there is still a problem because the screen is black. Could someone configure this file to my data? I would be very grateful.

[URL="https://www.badcaps.net/filedata/fetch?id=3605110"]640OK.zip[/URL]

Device: HP ProBook 640 G2 / i5-6300U

MOTHERBOOARD: 6050a2723701-mb-a02

SERIAL NUMBER: 5CG8398WY7

The second file is my old corrupted bios after a bios update.
[URL="https://www.badcaps.net/filedata/fetch?id=3605111"]old...

Thanks for the input but I have to admit with regret that it doesn't work. But there is a reaction, on this BIOS my capslock lights up (all the time) and the power button. But the power button itself doesn't react. On one of the BIOSes from this thread the laptop wanted to turn on but only the fan worked and nothing else. Dear masters, is there a chance to fix my BIOS so that this laptop can start working again?

Hello please dump bios, I tried to do it myself but it doesn't work. 1 file is my damaged bios during update and the second file is bios after my failed repair

5CG8398WY7
Product: L8U34AV
I don't know exactly what motherboard model it is

This is serial numer: 5CG8398WY7...