HP Elite Book 840 G3
Motherboard: 6050a2892401-mb-a01
s/n 5CG711520N

Old bios backup
https://drive.google.com/file/d/1NrE...w?usp=drivesdk

Good afternoon. Please help. HP Elite Book 840 G3 laptop. It lay for a long time, sat down and did not turn on. It blinked white and orange. I pulled out the CMOS battery to reset the BIOS and it turned on without it. But when I rebooted, the laptop did not turn on again until I turned off the power. I decided to update the BIOS from the official HP website through Windows. During the update, the laptop turned off and no longer responded to the button, even the fan did not work. I decided to reflash it using a programmer. When I tried to restore the backup, it said that it did not match. So I...