Re: HP BIOS unlock tool
you were lucky..shuck the chip off the board, put it in the programmer, read it, and put the copy here.
you were lucky..shuck the chip off the board, put it in the programmer, read it, and put the copy here.
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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 <<<<<
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Re: HP BIOS unlock tool
Soldering is not my favorite activity, but desoldering is even a nightmare for me. No chance to get it working in place?Comment
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Re: HP BIOS unlock tool
if you do not remove the chip from the board you will have errors.
https://www.youtube.com/watch?v=DWWigscuQDYDue 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 BIOS unlock tool
Never write anything before you have read AND verified original bios first. If you just read it and dont verify the content, you usually will have problems.
Luckily it seems that writing had problems too because your laptop still works
What programmer and software do you use anyway?
With some programmers you need to do this:
*Remove battery
*Attach charger
*Turn on laptop and go to F1, F10 or wherever you like
*Turn off laptop holding down power button (DO NOT REMOVE CHARGER)
*Attach programmer
*Read bios chip content
*Use verify function or read content one more time and compare using hex editor software
*If all is okay, use HPUnlocker tool on the VERIFIED bios dump
*Write the xxx_unlocked.bin file
*Verify bios content
You must always make sure you verify everything you read/write, I cant stress this enough.
And those few first steps are mandatory with some programmers unless you unsolder the chip.Comment
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Re: HP BIOS unlock tool
Hello again,
I desoldered the chip (is a winbond W25Q128FV) and try to read it using am CH341A Programmer and a test clip (https://www.aliexpress.com/item/32716202129.html)
I have read the content of the chip 4 times and got 4 different bin files. Under these circumstances I don't want to risk the total destruction and to try to flash the file generated by the removal tool. Can you possibly recognize my problem? The files are partly the same but some areas are completely different.Comment
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Re: HP BIOS unlock tool
What software do you use?Comment
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Re: HP BIOS unlock tool
CH341A Programmer V1.29, see also the screenshot.Attached Filesif you find these attachements useful please consider making a small donation to the site
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Re: HP BIOS unlock tool
Thank you for your advice! I've tried it using AsProgrammer v 2.0 and found by the way many threads in different forums about the same problem as in my case:
Verification Failure CH341a - W25Q128FV Help
W25Q128FV can't be flashed
RE: [Guide] Using CH341A-based programmer to flash SPI EEPROM
I've soldered the chip directly to the programmer now and I've used following versions of the different programmer SW:
CH341A Programmer 1.19
CH341A Programmer 1.29
AsProgrammer 1.4.0
AsProgrammer 1.4.1
AsProgrammer 2.0.0a14
But I have still the same problem, the dumps are not exactly the same. Do you have any other idea?Last edited by SMDFlea; 05-07-2023, 05:06 AM.Comment
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Re: HP BIOS unlock tool
Whats the lenght of your programmer wires?
I have kept them less than 20cm and everything works perfectly. Tho I havent used CH341A for a while now.
Miniprog and such seem unreliable to me aswell. One of my favourites and quite cheap option is using raspberry pi.
Pi Zero being as cheap as CH341A. It is 5€ if you can find any.
I use Zero W or 3B but any of them should work just as well.
Flashrom as the software.Comment
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Re: HP BIOS unlock tool
One thing I've recognized is: last dumps, created using desoldered chip and SW except CH341A Programmer 1.29 which is suspected to be buggy, differ only in the area between 00EB6000 and 00EB6FF0. Is it possibly intended to be different for some special purpose like encryption or something else?Comment
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Re: HP BIOS unlock tool
No wires at all since I've soldered the chip directly to the programmer PCB which is connected directly to a USB port.Attached Filesif you find these attachements useful please consider making a small donation to the site
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Re: HP BIOS unlock tool
ok put the programmer in the laptop use the software from item # 188 and make two copies, without touching the programmer, check them and see what came out .. it must be the same.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 BIOS unlock tool
I did it, more than one time, using different versions of the SW listed in one of my previous posts. See the screenshot for AsProgrammer v 2.0 mentioned in the topic 188.Attached Filesif you find these attachements useful please consider making a small donation to the site
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Re: HP BIOS unlock tool
So, I did it again... Using Raspberry Pi 4 and flashrom, same problem, differences at 00EB6000. Any other suggestions?Comment
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Re: HP BIOS unlock tool
Something new: as mentioned somewhere in web I added a decoupling capacitor between VCC and GND. I used 2.2uF or 10uF. There are still differences in the same range but lesser than without capacitors. A hardware issue?Comment
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Re: HP BIOS unlock tool
Might be a faulty chip aswell. Rarely happens but still...Comment
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Re: HP BIOS unlock tool
But the chip worked well with the laptop, the only problem was the password.
Let's say I would buy a new chip, which data I should flash, as I'm not able to get an appropriate dump? Simply the latest BIOS version from the HP web site?Comment
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Last edited by peste; 04-06-2020, 03:14 AM.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 BIOS unlock tool
OK, thank you, I'll try it! Now I must only figure out, where to buy the new one.Comment
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Hi guys i like to buy tool that automatic unlock bios or find password also can flash and repair bios ic, looking for good tool have good software that have 1 click and unlock bios any recommend good tool? looking for sony ps5 and and laptop bios
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Need Clean BIOS/EC Bin File for Lenovo ThinkPad Yoga 11e - Stuck with 0275 Error CMS
Hello everyone,
I am attempting a repair on a Lenovo ThinkPad Yoga 11e that is currently stuck at boot with the error: "0275 error CMS" even after setup new bios battery and will not allow me to enter the BIOS/Setup.
This is a critical issue that I believe requires flashing the BIOS chip directly using a programmer (e.g., CH341A/RT809H), as standard software updates or resets are not possible.
I have opened the laptop and identified the main BIOS chip... -
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,... -
Hi all,
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Hi everyone
I noticed on the Xgpro software the BIOS backup files have extra bytes at the end when reading some chips, this is because the Xgpro software also reads the OTP region of those flash chips, and by default will append that region to the saved file
Programmer models: XGecu TL866II Plus / T48 / T56 / T76
Example: GD25LQ128D (1.8V), IC size is listed as 0x1000000 Bytes (16777216 bytes) + 0xC00 bytes, those extra 0xC00 bytes will be appended to the end of the saved file by default, resulting in a file size of 16780288 bytes
There's also an extra OTP Secu.R...
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