I tried NeoProgrammer and i think it was more successfull.
I was able to dowload the bios to a bin.file and unlocked it with RCUnlocker v1.0, and got a successful notification.
But still the same problem when try to write to the chip (an new .bin file without pw) i get the same error:
CRC32 = 0x8E0CAAA2
Current programmer: CH341a
10:02:24
Old protection Register: 11111111(0xFF),

Then nothing happens.

Here are the BIOS:

Original:
https://limewire.com/d/Ddplu#JScEhbTBtK

Unlocked:
https://limewire...

Hi

I have two HP ProBook 640 G4 that i bought from an acution with IT equipments from companies that went out of business.
Bought laptops have BIOS/UEFI passwords that i havent been able to get from the now bankrupt company.

I can read and download the BIOS/UEFI from both the laptops and i done a checksum run on both of the so i know i get the same "bios/uefi" the both times.
Now to the problem, if i try to erase the current bios (AsProgrammer) it just stops, i tried to wait for 20min but nothin happens (no signs of the erease to be complete)....