HP zbook studio 16 G9 BIOS unlock

[peste]

Hello there, I have a refurbished HP Zbook Fury 16 G9. Working well, but on start-up there are two issues:

1) During start up it show a message the system is in manufacturing mode
2) Second screen comes with a BIOS sound, telling that "Product information not valid. Cirrus Discrete Amp Calibration Data".

Can anyone help me to unlock BIOS? Thank you.

post S/N, full name and model, motherboard model, product number,etc.

post the contents of the bios chip even if it is corrupted..

[bayrischer-bub]

post S/N, full name and model, motherboard model, product number,etc.

post the contents of the bios chip even if it is corrupted..

Hey peste (Salut!), thanks for prompt response. And thanks for your help. Cheers to Romania, fabulous country.

[peste]

Hey peste (Salut!), thanks for prompt response. And thanks for your help. Cheers to Romania, fabulous country.

Don't post pictures unless asked...write with the keyboard..

The bios chip must be unsoldered from the board before writing or reading..
do not use the clip, you may have errors..if you do not have anything to unsolder it with,
solder wires between the programmer and the bios chip..

you need an SPI programmer...here is a video for example..https://www.youtube.com/watch?v=DWWigscuQDY&ab_channel=ThisIsHow
read the forum rules..
https://www.badcaps.net/forum/troubl...ore-posting

[JimminyJim]

I'm interested in editing bios and/or EC manually myself.

Is anyone able to point me to a guide of how to edit the bin files with a hex editor for this model?

[JimminyJim]

Is EC.bin needed to be changed for unlock or cleaning ME?

[shiyab]

Is EC.bin needed to be changed for unlock or cleaning ME?

post og lock bios and snid

[CMdak]

Hi Please help to unlock + clean ME + clear Absolute
S/N:5CG3455HKW

[shiyab]

Hi Please help to unlock + clean ME + clear Absolute
S/N:5CG3455HKW

POST bot file

[CMdak]

POST bot file

What is bot file?

[volinakis]

What is bot file?

BOTH files, meaning main and EC backups.

[CMdak]

BOTH files, meaning main and EC backups.

Both files attachment

[volinakis]

Both files attachment

write only main bios. Save your DMI 1st with BCU.

[shiyab]

Both files attachment

post lock pic

[shiyab]

Both files attachment

[QUOTE=volinakis;n3822113]

TRY main

[CMdak]

write only main bios. Save your DMI 1st with BCU.

This seems to work. Thank you very much. The passord is cleared.

I still have a residual issue - stuck in Manufacturing Program Mode due to the Cirrus Discrete Amp Calibration error.

I used UEFI Tool to extract info from the original bios.bin file but not sure how to extract the needed string from it.

Can anyone help with that?

[volinakis]

This seems to work. Thank you very much. The passord is cleared.

I still have a residual issue - stuck in Manufacturing Program Mode due to the Cirrus Discrete Amp Calibration error.

I used UEFI Tool to extract info from the original bios.bin file but not sure how to extract the needed string from it.

Can anyone help with that?

I told you to extract DMI before writing new bios. Try this, write this value with BCU.
3000000002000000302E0C013A5F0B00307A39F90041DA0117019427302D0C013A5F0B00E0999FFA0041DA011701E228

[shiyab]

This seems to work. Thank you very much. The passord is cleared.

I still have a residual issue - stuck in Manufacturing Program Mode due to the Cirrus Discrete Amp Calibration error.

I used UEFI Tool to extract info from the original bios.bin file but not sure how to extract the needed string from it.

Can anyone help with that?

HI try

[CMdak]

I told you to extract DMI before writing new bios. Try this, write this value with BCU.
3000000002000000302E0C013A5F0B00307A39F90041DA0117019427302D0C013A5F0B00E0999FFA0041DA011701E228

Yes, I realise my mistake that when you said 1st, you meant before flashing, not 1st action after.

I tried that string and it failed. Is there another way to extract string from the *.bin files?

[CMdak]

HI try

Thanks for your effort. If I can get a string for the Cirrus setting without needing to desolder and resolder bios chip again, it is preferred.

[volinakis]

Thanks for your effort. If I can get a string for the Cirrus setting without needing to desolder and resolder bios chip again, it is preferred.

post txt file you read with BCU and modified with Cirrus value.