Re: HP BIOS unlock tool

THANK YOU everybody in this forum and thread, specially to @RetoricalCheese, @Vesko356 and @SMDFlea.

I did it !

This afernoon, I give a try to the three other softwares (NeoProgrammer,Colibri or ASProgrammer), basically same results of no detecting the chip ( this time with the clip, as I removed the wire solder yesterday), but surprisingly, in one of the attemtps adjusting the clip. Voilà. Colibri programmer detected.

Then with Colibri, I read the chip, verify it ( no discrepancies), saved it to bin file and drag&dropped...

Re: HP BIOS unlock tool



Thanks SMDFlea,
I will give a try tomorrow to these softwares.
I have the green version of the CH341A, but will double check the voltage it gaves as well.

Read also about, trying to dump with the CMOS battery connected. So, another test....

Re: HP BIOS unlock tool

Thanks everybody, unfortunately I was not able to make it.

I received my CH341A programmer yesterday, and spent the afternoon with the clip.
No way I could detect the bios chip ( winbond 25Q64FV). No matter how I put the clip, I could't detect it, not even once.

Reading about the clip problems, I decided to solder.

This time, I was able to detect the chip but readings was garbage, anytime I pressed detect, the chip ID changed.
I could verify just once the dump, but it was also garbage ( same content in blocks),...

Re: HP BIOS unlock tool


Thanks @RetoricalCheese, unfortunately don't have a Raspebrry, so purchased a ch341a kit. I will test it when it arrives.

The two chips are marked/read as follows: the one with the blue dot is brand Winbond, 25Q64FVSIG 1529, and the other one is also Winbond brand but model 25Q160VSIG 1545.

From my "google research", I understand that I need to read from ( and later write to) this one 25Q64FVSIG .

If I am wrong, please let me know....

Re: HP BIOS unlock tool

Hello everybody !
This is my first post here.

Let me tell you my problem, I have a Elitebook 745 G2 with Bios admin password lost and Secure Boot enable, so I have been unable to clear bios using Mazzif method, and just decided try this process.

Once decided, I would like to ask your help for:

1-. Any recommendation for CH341A and SOIC8 clip adapter to read and program back my BIOS ?
I don't have any, so will purchase one that any of you are using successfully ( if possible with a model same as mine...