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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.Attached FilesLast edited by mtl4; 05-31-2020, 10:04 AM.Comment
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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.Comment
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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 picturesComment
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Re: hp zbook stidio g3
try..Due to a lack of donations, server free space at a critical level, and possible closure of Bios Requests all donations are welcome, click:
>>>>> https://www.badcaps.net/index.php?pageid=donate1 <<<<<
Every donation made will go towards server fees and maintenance costs.Comment
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Re: hp zbook stidio g3
thanks its workingComment
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Re: Zbook 15 G3 password clear
Please, help me, clear admin password from this BIOS HP ZBook 15 G3Comment
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Last edited by Vesko356; 09-07-2020, 03:33 PM.----------------------------------------------------------------------------------------------------------------------------------------------------------
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----------------------------------------------------------------------------------------------------------------------------------------------------------Doctrina est fructus dulcis, radicis amarae..Comment
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Re: Zbook 15 G3 password clear
Dear people, could you please remove the admistrator password from my Zbook 15 G3 ? Thank youComment
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Due to a lack of donations, server free space at a critical level, and possible closure of Bios Requests all donations are welcome, click:
>>>>> https://www.badcaps.net/index.php?pageid=donate1 <<<<<
Every donation made will go towards server fees and maintenance costs.Comment
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Re: Zbook 15 G3 password clear
MainboardName: 80D5
Mainboard Version : KBC Version 10.6EComment
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Re: Zbook 15 G3 password clear
universal bios backup toolkit 2.0
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Re: Zbook 15 G3 password clear
and intel FPT dont work?Comment
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Re: Zbook 15 G3 password clear
with intel ftp i get this
MainboardName: 80D5
Mainboard Version : KBC Version 10.6EComment
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Hello, I have an old Dell G3 3579 (ST: 2WQ7LP2-8FC8) with a newer 8FC8 BIOS password. I have successfully attached to the flash chip (W25Q128JVSQ) on the motherboard with a CH341A programmer and made several modifications using Intel FIT (e.g., allow software SPI write) without bricking. I was also able to boot to a modified GRUB shell where I attempted to edit many BIOS security related options like BIOS Guard/Lock, Flash Signature Override, ME FW Image Re-Flash, etc.
Unfortunately, some of these modifications like to Intel BIOS Guard failed because it is fused into the PCH. Also,... -
Hello,
I'm using TONGFANG "GM7TG7P" model laptop for over 3 years and i'm entering the same bios administrator password everyday. My laptop has Aptio BIOS (American Megatrends, AMI).
But today it's not accepting my password. I'm %100 sure i'm entering the correct password.
I'm trying to reset my bios without success.
I tried :
-I removed the BIOS battery and main battery. Waited for a long time but it didn't work. They already stated in the user manual that the password will not be reset even if the batteries... -
Hello everyone, I come here to tell you my problem regarding the power-on password. It is not a bios reset demand, and i can't have any access to windows. This is the bios and power-on password that is blocking all other things.
My Omen 15-dh0052nf purchased second-hand was configured with the bios password upon purchase (very simple password :P ).
Having decided to sell it in order to get something more powerful, I reset all BIOS settings and set a blank administrator password. But the power-on password cannot be changed to a blank one so I let the actual password set.... -
RedmiBook Pro 1542022 6800H
SKU: TM2113-39463
Model Number: RMA2204-AB
CMIIT ID: 2022AP1835
SN: 39463/22WD01355
BIOS version: RMARB5B0P1010 20230628
1. I bought this laptop from flea market, and the seller said that he had never set a password, however here is a password required when pressing F2 to enter BIOS.
2. And after entering incorrrect password 3 times, there is no any useful information like "recovery code"
3. I used universal bios backup tool, and dumped 8MB bin file, but hex code after "SystemSupervisorPw" is...01-14-2024, 06:35 AM -
Hello
I removed the BIOS password thanks to the help of one of the friends of this forum.
https://www.badcaps.net/forum/troubl...61#post3637661
The batch from which the password was removed works correctly but... after some time, the BIOS password is set again, I reprogrammed the batch with the removed password, it's ok, there is no password, I set my password, ok, I can enter the BIOS with my password but...
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