P6661 - MSN30021198 Black sceeen after bios update

[mariusalin]

i tried to update my pc and got a driver update wich i think was bad , after i run bios update (bioe642x_p666x.exe)  my laptop rebooted and  i got  a black screen.

now i dont know what to do or how to restore the old bios , anythink i do or press wont start my laptop display , the laptop starts.

Any idea how to fix this ?

Thanks

[Raymond]

@mariusalin

 I try to help you - if you are lucky it works again

Bios-Reset

Removing the power source will completely reset your BIOS to factory defaults.

Look for a yellow CMOS battery on the motherboard and remove it. Also remove the battery connection
Wait up to 20 minutes after the BIOS has forgotten all settings made.
The waiting time is necessary because the settings without battery for residual current discharge.

This restores the original configuration. Then press and hold the power button for 20 seconds  for residual current discharge when the batteries are disconnected

Gruß Raymond