Hello,

My M4800 does not start: total black screen, but the 3 led sound and the on/off led are on.

It has already happened in the past, I had to try many times and wait for it starts again and the bios update (A26) resolved the problem for several months before the problem came back without understanding why.

I tested a lot of advices here, even removing all parts (RAM, HD, CD drive, battery, CMOS...) but no changes.

Only the D + start test passed (the screen changes colors) but it remains without POST on reboot.

I looked for a bios recovery method, but there wouldn't be one on this model if I understand correctly.

Do you have an idea ?

Thank you very much for your help.