Re: RCUnlocker
*** OK, FORGET IT ***
Breaking News, finaly, when pulling the wire from the chip, I was able to read it... and soon after, did TWO backup of the locked EC bin file
After droping the locked bin to the RCUnlocker executable, the unlocked file appear, and was immediately programmed to an SOIC Windbond 25Q128 (I had three pieces frm a previois chineese order ).
Easy to solder that one, put all screw (minus two ??? ther left!) to mount the pcb, fan, keyboard... breath long time, and push the power button...
Soon, I could...
Thank you to the guys at HEGE supporting Badcaps [ HEGE ] [ HEGE DEX Chart ]
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Last edited by SMDFlea; 05-18-2022, 09:20 AM.
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Re: RCUnlocker
Hello RethoricalCheese!
You're right: yesterday, I did find easily the 32Mb main BIOS chip, unlockit with HPUnlocker, verify the files and the differences, write it back to the Windbond 25Q256 and test it (with long wire) => it work
But admin password still there...
Then "hoaca388" wrote on the HPUnlock related thread:
"[I][COLOR="RoyalBlue"]You have another 16MB or 32MB chip left. Look for it on both sides of the main board.[/COLOR][/I]" => thats right, on...
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Re: RCUnlocker
I think it will be better to use the "fc.exe" command on DOS (cmd.exe) command, like [FONT="Courier New"][B]fc /b file_dump.bin file_dump_unlocked.bin[/B][/FONT]
Then, the terminal will show the difference of the two files! Re: RCUnlocker
I think it will be better to use the "fc.exe" command on DOS (cmd.exe) command, like [FONT="Courier New"][B]fc /b file_dump.bin file_dump_unlocked.bin[/B][/FONT]
Then, the terminal will show the difference of the...
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Re: HP BIOS unlock tool
So, I will seek some information to get access to the other side of the laptop mainboard...
One question: are there any topic that show the BIOS unlocking with pictures (to locate the components) ans some screen shots?
I will take picture of my mainboard tomorrow, with the patching process, maybe will produce any PDF as a checklist
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Re: HP BIOS unlock tool
OK, see it on the RCUnlocker thread... I will try tomorrow! ...
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Re: HP BIOS unlock tool
Hello Vesko356,
thanks for your fast reply!
First, i did a "fast reply", and could'nt find any upload/attachment icon on this Forum.... now, I see it!
Here we go with the files:
You write: "[I][COLOR="Blue"]...the EC bios chip must be edited, so find it (in the most of the cases it's in the back of the board)...[/COLOR][/I]" what do you mean about the EC bios?Re: HP BIOS unlock tool
Hello Vesko356,
...
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Re: HP BIOS unlock tool
Hello everyone,
I'm looking for help to unlock my second hand HP EliteBook 840 G5, with System BIOS Version "Q78 Ver. 01.20.00 03/21/2022".
This laptop contain a BIOS on an Winbond W25Q256JV chip,so, it's an 32Mb chip.
I dump the BIOS chip, and patch it with HPunlocker (date 17sep19), flash it back, and test it...
So, lucky that the laptop boot, but the BIOS password is still there!
I compare the original file and the unlocked one, ans I could see that starting $01B0108E, that 13 byte are...
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