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HP Elitebook 645 G10 / DA0X9TMB8D1 REV:D

Not much images are available online. I have extracted bios.bin from original HP package, flashed and same result. Could it be possible the EC Bios went corrupted to? Can you extract EC image from the HP package?
 
RWS said:
Not much images are available online. I have extracted bios.bin from original HP package, flashed and same result. Could it be possible the EC Bios went corrupted to? Can you extract EC image from the HP package?
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OK so I am an absolute idiot. I do hot air soldering very often but turns out this time I made a mistake. I allowed the idea for this in my head and I started thinking I could knock a component off. I could not find a schematic or board view but I found HP YT channel where they are posting maintenance videos about their machines. There was a picture of the motherboard. On this picture ROM is installed in some sort of a socket unlike on my board where it is soldered but everything else is the same. I noticed I must have knocked off a resistor when desoldering the chip. This resistor has been connected to pin 1 of the ROM. I found that on the other side of the track the voltage goes up to 3.3V max so I decided to replace the resistor with a soldered bridge. After doing so on original BIOS picture laptop wakes up. Keyboard backlight turns ON, power LED turns ON, all the voltages on the board are present, CPU getting warm but no display backlight and no picture. After about 10 sec the machine restarts.

I guess the bridge is not enough and replacing that resistor is essential. There is no board view no schematic so I do not know the value of the resistor. I found schematics for other laptops with similar ROM and design with the resistor connected to pin 1. Normally these resistors are within 22 - 220 ohm. I will give it a go later today. Any other ideas on the resistor value? Thank you.
 

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OK problem solved. Machine boots up. Could anyone be able to build a BIOS image without the password? Thank you
 
The BIOS post screen says "Protected by HP Wolf Security". Will patch surely remove the BIOS password and Microsoft autopilot?
 
Hi, I have a laptop HP 630 G10 , With bios password and Microsoft autopilot,

How much will Unlocking cost????
 
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