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HP EliteBook 840 G3 - 6050A2728501-MB-A01

Can you help me to find correct pair of bios + EC.
I have: 6050A2728501-MB-A01

Here is my backup bios and EC.

Laptop working but sometime not respon for power button - i have only charging light.

I try few bios from this theader (waste 3hr) but always motherboard work but black Screen.
 

Download list

oryginal EC and Bios.rar
11.1 MB · Views: 44

The laptop gives 3 beeps and 2 short beeps with black screen

I check motherboard and all ok I change new working RAMs

And diagnostic hardware is ok.

Not resolved.

Need juste rebuild new bios file

made new bios with uefi tools please ?
 
Hello
mistakenly deleted backup dump for elitebook 840 G3
do you think it is possible to program file bin again without saving
thank you.
 
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