[Solved] HP EliteBook 840 G1 BIOS Admin Password !!!?

Can you help me how to reset hp 2570p BIOS password?

 

hi, I've made a dump of passworded 840 g1 with ch341a and 2 bios chips, I've desoldered and read 25q128fvsq the file is 16mb and when tried to write after modification software says disagreement and computer won't start if i try to write original dump it is the same. the second chip is 25q16dvs. wich one has to read and how to read with ch341a with an option for main memory or main meomry+secured otp?

 

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LatinMcG only the 16MB Flash or both Chips of a Elitebook 840 G1?

I need your Help too.

Which Clip do you use to Connect the Chip?

 

i dont use a clip.. as it cant read properly.
16mb

 

OK so you use a DIP Adapter ?

 

i remove the chip and use adapter yes.

 

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to make it generic needs Intel ME Cleaned properly.
first make backup.bin and verify it before erasing chip.
what programmer will you use? if CH341A i recommend flashrom or ASprogrammer
also does not always work with clip to board.. might need to desolder.

 

Hi LatinMcG

Do you know how i can delete the admin password from the bios flash dump of an hp elitebook 840 g1?
Is there a way to edit the flash dump at the correct address?
Thanks

 

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with uefitool find UserCred and replace it with a clean one in hexedit

 

I have an HP ELitebook 840 g2. Is there an SMC.bin file for this laptop that I can use? Or is there some other method that I can try to reset the bios?