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Re: HP BIOS unlock tool
I didn`t check it yet but I found EPZ2019 mod on youtube which is simply connecting pin 4 with ground.I`m gonna check it on weekend with chip removed and not removed from mb.This is a link to tutorial how to do it:
https://www.youtube.com/watch?v=8_sCP9a56cw&t=30sComment
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Re: HP BIOS unlock tool
Please remove bios password my hp ProBook 640 g3
ThanksComment
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Re: HP BIOS unlock tool
I`ve got to remove password from Hp 820 G5.I`ve made a dump from W25q256 wich is 32mb one.RcUnlocker doesn`t work with this file.I used HpUnlocker but I`m not sure if it`s ok.May I ask sombody to check it for me and eventually if its wrong, make it correct for me.I`m attaching original locked dump, unlocked using HPunlocker and image after trying to unlock it using RCunlocker.
Thank you in advance.Attached FilesComment
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Re: HP BIOS unlock tool
Hi and thanks for your tool!
I have a ProBook 470 G2 with a password protected Bios, I tried your tool to unlock it but after reflashing it's still asking for the password.
Here is the procedure I used:
Unplugged and removed the laptop battery.
Used the CH341a to extract the Bios from the chip in place (without de-soldering).
Unlocked the extracted Bios with HPUnlocker tool.
Reflashed the unlocked Bios in place.
Put back the battery and plugged in the laptop then tried to enter the Bios, but it's still asking password.
Should I try to remove also the CMOS battery before flashing?
If it helps I join the two Bios (unlocked and original)
Thanks!Comment
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Mọi khoản quyên góp cho Badcaps đều được hoan nghênh . Trở thành người ủng hộ Badcaps >>>>> nhấp vào liên kết này để quyên góp <<<<< Cảm ơn tất cả những người ủng hộ . -------------------------------------------------------------------------------------------------------------------------------------------------------------Comment
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Mọi khoản quyên góp cho Badcaps đều được hoan nghênh . Trở thành người ủng hộ Badcaps >>>>> nhấp vào liên kết này để quyên góp <<<<< Cảm ơn tất cả những người ủng hộ . -------------------------------------------------------------------------------------------------------------------------------------------------------------Comment
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Re: HP BIOS unlock tool
Thanks but how to do to remove all power if the battery is already removed and if it's the programmer that's giving power? Will it works if I keep the power button pushed while flashing the chip?
RegardsComment
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Mọi khoản quyên góp cho Badcaps đều được hoan nghênh . Trở thành người ủng hộ Badcaps >>>>> nhấp vào liên kết này để quyên góp <<<<< Cảm ơn tất cả những người ủng hộ . -------------------------------------------------------------------------------------------------------------------------------------------------------------Comment
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Re: HP BIOS unlock tool
In fact I don't know how to remove the power from the board while flashing, because this chip is soldered to board an I'm flashing it in place.
I tried erasing the chip before reflashing but it's the same result, it's still asking me the password.
ThanksComment
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Re: HP BIOS unlock tool
Remove all battery. Main battery and CMOS battery.
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Re: HP BIOS unlock tool
I realize that the bios chip W25Q64FV operates in 3.3V but my CH341a operates at 5V. Could this be the problem? If I lower the voltage of the CH341a to 3.3V will it works?
In fact when I flash or read the chip the board is indeed powered by the CH341a because I can see that the light of the power button turns on (although there is no battery plugged in).Comment
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Re: HP BIOS unlock tool
Sorry I didn't see your previous post, I will try then without CMOS battery (all other power sources are already disconnected).
But I was thinking also that maybe isolating the power pin of the Bios chip from the board can also work to avoid it to power the board, it's pin 8 on W25Q64FV.
ThanksLast edited by flo34; 04-11-2022, 06:10 AM.Comment
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Re: HP BIOS unlock tool
OK it worked thanks a lot for your help! Simply removed the CMOS battery (along with all other power sources) did the trick (I wanted to avoid it because I had to fully disassemble the laptop).
Apparently, I didn't need to lower the voltage to 3.3V, it seems that some chip are not damaged by the 5V.
Thanks again!Comment
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Re: HP BIOS unlock tool
sir my laptop in no display 830 g7 fan making noise with high speed i programm many bios but condition same i think clear me issue any body can help plz plz reply 10th gen laptopComment
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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 got a Lenovo ThinkStation P520 (Type 30BF) from a friend, asking me for a repair. Windows 11 offered a firmware upgrade as an optional update, and it failed.
The emergency flash procedure from the hardware manual has also failed. So, I asked an acquaintance with better skills to flash the BIOS directly.
However, the chip (a Macronix MX25L25673GMI-08G) has a size of 32 MB, and the BIOS file from the Lenovo website (extracted with UEFITool) has a little more than 16 MB. Thus, the software my acquaintance used (SiberiaProg v1.45, with a CH341A Programmer)... -
Hello, Need unlock BIOS password for HP 245 G10 MOBO PART NO: HOKIE22-MV-VGT-6050A3461901-MB-A01
Attached my backup file
SERIAL NO: 5CG4300CNT... -
Hello to all of you! I need help with a BIOS file.
The BIOS chip is fried on my Asus F542UN laptop, and I bought a new chip that needs programming. I have a CH341a programmer but I need a .bin BIOS file. On Asus support page the firmware has another extension, .310 and from reading on this forum I understand that that file is not complete BIOS.
So, in short I need the "complete" BIOS .bin file to flash on the new chip. Another issue is that on back of the case the label says F542UN but on the sticker on the motherboard it's X542UN. -
Hello everybody!
To put you in context I recently replaced the battery from my HP Pavilion 15 bc400ns with a used one, everything was going good. The same day, I decided to update the BIOS, everything went good. The thing occurred after I let the battery drain iddling on Windows 11 for the second time to calibrate it that the screen did not turn on again, the computer was on but the screen did not turn, like it would not wake from hibernation. I decided to restart the computer but got no video.
The thing is that I had installed TeamViewer and could log into the computer...
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