llek100
Member
Last Activity: 04-18-2025, 07:24 AM
Joined: 08-25-2024
Location: Nitriansky kraj
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Thank you for the response, however, after flashing the 1 unlocked.bin to the corresponding laptop, it just showed "The BIOS has recovered it's identity data from the embedded controller due to data mismatch." and it is still locked....
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Sorry, I forgot to post the serial numbers, here they are:
1 - 5CG8441GP3
2 - 5CG8441GVV...Leave a comment:
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Hello, I recently got two locked HP EliteBook 840 G5, I've seen that this tool supports them - however I am not able to get it working.
When I dragged the locked dump onto the exe, I get a supposedly unlocked file, but when I flash it, the BIOS is still locked.
I am flashing/reading from the 32MB chip.
Here are my locked dumps....Leave a comment:
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Hello, I am attaching two BIOS dumps from two HP EliteBook 840 G5 laptops - I was unable to reset the BIOS password using these tools:
[url]https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-laptops-tablets-and-mobile-devices/bios-requests-only/91264-hp-bios-unlock-tool[/url]
[url]https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-laptops-tablets-and-mobile-devices/bios-requests-only/87349-rcunlocker[/url]
[url]https://gist.github.com/schorschii/752b3a06f7bc3b33ce7b65ff22c27337[/url]...Leave a comment:
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Please one more thing, the number 2 has started showing the "There is a problem with the HP Endpoint Security Controller on the unti.", I am attaching a photo as well.
I am also attaching current BIOS dump. I do not know if this is fixable, since I am missing the original XU68/PRVROM backup from this device.
Also if there is a way I could support your work, please let me know.
Thank you very much!...Leave a comment:
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Hello, it now works! I had to erase the PRVROM, or the XU68 chip on the mother board, the system then recovered it! Now everything works!
Thank you very much for everything!Leave a comment:
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Unfortunately still the same with 2.Leave a comment:
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Thank you so, so much! Number 1 and 3 do work completely fine now!
Number 2 flashes 6 times red and 3 times white. I don't know if that's fixable. It is possible that the backup file for 2 was somehow corrupted or something, since it was the first one that I grabbed the backup from, and was the one I tested a MPM unlocked BIOS that was present on this website, but was deleted because it did not work.Leave a comment:
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So an update, I managed to unlock the BIOS-4-5 using an HP unlock python script.
This is the one if someone wants to do the same: [url]https://gist.github.com/schorschii/752b3a06f7bc3b33ce7b65ff22c27337[/url]
You also only need to read, unlock and flash the larger 16pin XU21 chip.
However, I am still unable to boot the PCs with the bricked BIOSes - those are 1, 2 and 3. If someone would be able to help somehow rebuild the BIOS or something.
I am not familiar with fixing possibly corrupter BIOSes.https://So an update, I managed to u... unlock pythonLeave a comment:
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Sorry, I did post them but through a Google Drive link in the post. Here they are in two zip files, numbered.
I did not realise the upload size limit is per file....Leave a comment:
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HP EliteDesk 800 G4 35W DM Desktop Mini PC - not posting after BIOS reset attempt
Hello, sorry for the long post, I just wanted to include any details that might help.
A bit of backstory - I currently have 5 of these MiniPCs - I got them for very cheap from Ebay. All of these PCs are BIOS administrator password locked without their drives.
I also got a G3 large tower, that I could reset the password of fine just using a header and a button on the motherboard.
So I thought that I could do the same with the G4 MiniPCs, oh how wrong I was.
First of all, I stumbled upon a tutorial, that apparently showed a BIOS password reset procedure - where I basically...
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