Zbook 15 G3 password clear

[alihomee]

Re: hp zbook stidio g3

it will take time to restore the dmi info,try this one.

thanks will update here after flashing with this

[mtl4]

Bios unlock for a Zbook 15 G3 studio

I wanted to start this thread since I received a laptop from a seller that decided it was ok to sell locked computers to folks while conveniently forgetting to disclose this prior to the sale. When asked to resolve it I was told it's no big deal, just go on Youtube and they show you how to do it. Still pissed about that response (I'll deal with him later) but I believe when life gives you lemons, it's time to make lemonade.

So right now I have this Zbook 15 G3 and really the only problem with it currently is the bios is admin locked such that I can't use the HP Assistant to update the bios to the most current version (it's still stuck at 1.09 which is probably original when sold versus the current version available from HP which I believe is 1.41). So everything else works and the laptop fully boots into windows and otherwise operates normally to start. The key here is I don't want to junk this motherboard at all if I can help it.

I believe I have located the bios chip on the motherboard (there are 3 chips that look similar, see attached). I took a shot of the whole board and then zoomed in on each one just so others can see what I mean. The bios chip appears to be a Winbond 25Q128FVSQ and if you look it even indicates the Bios chip location right on the PCB so that part wasn't too hard. Not sure if all HP boards do this but this one seems to be clearly indicated.

Next I bought a CH134A setup like this which comes with a test clip:



I was hoping to be able to read the chip without unsoldering it but that's where I stopped since I wanted to check with those that have more experience than I. I had read that some of these programmers use incorrect voltage (5V vs 3.3V) and I didn't want to damage my perfectly good chip.

Few questions.....
1) Are these programmers safe to use? (ie won't damage the bios chip)
2) Should I be checking any voltages before trying to read the chip using the test clip?
3) Can you safely do this with a test clip (ie get a good Bios dump to verify) or does it have to be unsoldered to ensure success?
4) What is the preferred program to use when reading the chip? (CH134A came with no directions, drivers or software at all)

I assume I will need to unhook the battery and plug in the charger to do this as suggested in several other threads in order to do this process.

Any tips/help on this would be most appreciated.

[mtl4]

Re: Bios unlock for a Zbook 15 G3 studio

Looking to get started on this so just bumping the thread for some help on my questions above.

[osman68i]

Re: hp zbook stidio g3

hi,

i have zbook 15 apw5u la-c401p rev 1A.

someone have damaged the bios.


i have tried several bioses. but other bioses no video and fan spinning full.

1.zip is bios

desktop.zip are pictures

[peste]

Re: hp zbook stidio g3

try..

[ibrahim03]

Re: hp zbook stidio g3

try..

thank you for sharing

working for me

HP ZBook Studio G3 Mobile Workstation LA-C401P Rev: 1A

[osman68i]

Re: hp zbook stidio g3

thanks its working

[VictorBo67]

Re: Zbook 15 G3 password clear

Please, help me, clear admin password from this BIOS HP ZBook 15 G3

[Vesko356]

Re: Zbook 15 G3 password clear

Please, help me, clear admin password from this BIOS HP ZBook 15 G3

https://www.badcaps.net/forum/showpo...43&postcount=1

[VictorBo67]

Re: Zbook 15 G3 password clear

https://www.badcaps.net/forum/showpo...43&postcount=1

Dear friend, its working! Thanks!

[bluecheese]

Re: Zbook 15 G3 password clear

Dear people, could you please remove the admistrator password from my Zbook 15 G3 ? Thank you

[peste]

Re: Zbook 15 G3 password clear

Dear people, could you please remove the admistrator password from my Zbook 15 G3 ? Thank you

you posted the update on the Hp site ... post the original bios of the laptop ..

[bluecheese]

Re: Zbook 15 G3 password clear

you posted the update on the Hp site ... post the original bios of the laptop ..

ah sry, i hope this is the right one

[bluecheese]

Re: Zbook 15 G3 password clear

MainboardName: 80D5
Mainboard Version : KBC Version 10.6E

[SMDFlea]

Re: Zbook 15 G3 password clear

ah sry, i hope this is the right one

The backup isn`t right. How are you making the backup ? ,with a programmer and clip,or intel FPT.

[bluecheese]

Re: Zbook 15 G3 password clear

universal bios backup toolkit 2.0

[SMDFlea]

Re: Zbook 15 G3 password clear

universal bios backup toolkit 2.0

You can`t make a full backup using that software, you will need an SPI bios programmer ,plus a sop8 clip if you can`t desolder the chip.

[bluecheese]

Re: Zbook 15 G3 password clear

and intel FPT dont work?

[bluecheese]

Re: Zbook 15 G3 password clear

with intel ftp i get this

MainboardName: 80D5
Mainboard Version : KBC Version 10.6E

[bluecheese]

Re: Zbook 15 G3 password clear

and intel FPT dont work?

Sry i understand now. Thanks for the advice