HP 255 G10 BIOS password / PowerOn password

[Joho]

Hi!
I've got a HP 255 G10 with unknown PowerOn / BIOS password

Model: HP 255G10
Product No: 853S9ES#ABD

Serial: 5CD336QDVN

Attached the dump.

Is there a way to read out the password without reprogramming it?

Anyways, any help is welcome

[Bios Cracker]

Hi!
I've got a HP 255 G10 with unknown PowerOn / BIOS password

Model: HP 255G10
Product No: 853S9ES#ABD

Serial: 5CD336QDVN

Attached the dump.

Is there a way to read out the password without reprogramming it?

Anyways, any help is welcome

Try and Update.

[Joho]

Try and Update.

Thanks, I'll try this one.
What do you mean by Update? Do I have to update this file before programming? How?

[hoaca388]

Thanks, I'll try this one.
What do you mean by Update? Do I have to update this file before programming? How?

It mean : feedback

[Joho]

Ok, I wanted to be sure before programming.
So I programmed "HP 255 15.6 inch G10 AMD Notebook PC (853S9ES)_08BA5.bin" contained in the rar file and voila, Administrator/PowerOn password is gone! Nice, thanks for this!

BUT there is a remaining problem, it says "Manufacture Programming Mode is in Unlock Mode" and serial number is gone. Maybe Windows key is gone, too?

How to carry on from here? Edit the numbers? Where can I get them from the dump?

[hoaca388]

Ok, I wanted to be sure before programming.
So I programmed "HP 255 15.6 inch G10 AMD Notebook PC (853S9ES)_08BA5.bin" contained in the rar file and voila, Administrator/PowerOn password is gone! Nice, thanks for this!

BUT there is a remaining problem, it says "Manufacture Programming Mode is in Unlock Mode" and serial number is gone. Maybe Windows key is gone, too?

How to carry on from here? Edit the numbers? Where can I get them from the dump?

HP 255 15.6 inch G10 Notebook PC
Serial_5CD336QDVN
Sku_853S9ES#ABD
Buildid_23WWOU9D601#SABD#DABD
FEATUREBYTE_3K3Y5Y6E6b7J7M7d7japawbDbhfPm9.e8

[danito]

Ok, I wanted to be sure before programming.
So I programmed "HP 255 15.6 inch G10 AMD Notebook PC (853S9ES)_08BA5.bin" contained in the rar file and voila, Administrator/PowerOn password is gone! Nice, thanks for this!

BUT there is a remaining problem, it says "Manufacture Programming Mode is in Unlock Mode" and serial number is gone. Maybe Windows key is gone, too?

How to carry on from here? Edit the numbers? Where can I get them from the dump?

dmi
5A0A0 - 5A0FF

[SMDFlea]

Ok, I wanted to be sure before programming.
So I programmed "HP 255 15.6 inch G10 AMD Notebook PC (853S9ES)_08BA5.bin" contained in the rar file and voila, Administrator/PowerOn password is gone! Nice, thanks for this!

BUT there is a remaining problem, it says "Manufacture Programming Mode is in Unlock Mode" and serial number is gone. Maybe Windows key is gone, too?

How to carry on from here? Edit the numbers? Where can I get them from the dump?

Bios + DMI (serial number etc.) .There is no windows key, the laptop OS for the 853S9ES is FreeDOS https://icecat.co.uk/en/p/hp/853s9es...114543716.html

[SMDFlea]

dmi
5A0A0 - 5A0FF

DMI 59000 - 5A0FF .The feature-byte is above the other DMI, usually it`s below it,so it`s easy to miss when you expect it to be after the serial etc.

59E40 - 59E7F Fill with FF`s

[Joho]

Bios + DMI (serial number etc.) .There is no windows key, the laptop OS for the 853S9ES is FreeDOS https://icecat.co.uk/en/p/hp/853s9es...114543716.html

Did you put in serial numbers etc in this file? Thank you very much!
Previous owner put Windows 11 on it, maybe it gets activated again. If ever activated

[danito]

DMI 59000 - 5A0FF .The feature-byte is above the other DMI, usually it`s below it,so it`s easy to miss when you expect it to be after the serial etc.

59E40 - 59E7F Fill with FF`s

true

[Joho]

Bios + DMI (serial number etc.) .There is no windows key, the laptop OS for the 853S9ES is FreeDOS https://icecat.co.uk/en/p/hp/853s9es...114543716.html

I did program the file you applied. Serial etc. is now visible in BIOS. Only "Manufacture Programming Mode is in Unlock Mode" remains. How to get out of it?

[SMDFlea]

I did program the file you applied. Serial etc. is now visible in BIOS. Only "Manufacture Programming Mode is in Unlock Mode" remains. How to get out of it?

Use HP bios config utility to lock MPM - https://ftp.ext.hp.com/pub/caps-soft...it/HP_BCU.html

[Joho]

Done. HP notebook is fully working now. Thanks to everyone.

[ShayG]

how did you flash the new modded file¿