Ask Lenovo ThinkPad P1 Gen 4: motherboard LCH-1 P-GPU MB213013-1 448.ONL20.0011

[Salutit]

It turns on but doesn't display an image.

 

[ThienBui]

It turns on but doesn't display an image.

 

[Salutit]

Which of the chips needs to be rewritten? From your file I see that it is the GigaDevice one? Is there a special procedure for the two-chip ones like this one?

 

[ThienBui]

Which of the chips needs to be rewritten? From your file I see that it is the GigaDevice one? Is there a special procedure for the two-chip ones like this one?

only Programming one main bios U2601