Greetings i am in the process of reverse engineering the bios logic for the 8FC8 suffix so far I have found most of the bios functions related to the suffix from a bios dump and I have verified inputs and outputs to test with plus the chartable for the 8FC8 suffix.
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[QUOTE=nix30101;n3529696]Greetings i am in the process of reverse engineering the bios logic for the 8FC8 suffix so far I have found most of the bios functions related to the suffix from a bios dump and I have verified inputs and outputs to test with plus the chartable for the 8FC8 suffix.[/Q
how good! -
I just thought about it, and decided to give it a good 'ol google search... and comes along your post on the 3rd result lol
Have you had any progress? I mean it shouldn't be impossible or if I could take a guess at least, something that has been done before.
I found there's people on the fleabay selling you a master password for 75 dollars, and has over 180 combined sales so far... Also in the BIOS of all of these newer models the "Master Password Lockout" option still exists. Which means they have a master password.
Just my 2 cents.Comment
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RE still in the works, but in the meantime, the next best thing is the updated Python script
https://github.com/chromebreakerdev/DellBIOSTools.git based on REX 8FC8. You can download just the raw Python file "dell_bios_tools.pyw" if you prefer. It has the 8FC8 patcher tool and old Dell master password generator combined.Comment
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I have seen there are some sellers on ebay which are charging 120 aud for the master password. I am also interested in learning and reverse engineering about it but i have no idea where to start from.Comment
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Using Ghidra, I've extracted the chartables for the 8FC8 suffix. The BIOS is the full BIOS 16M file, not the update. I've dump quite few 8FC8 bios's they all have the same functions in Ghidra, which point to functions used in 8FC8 logic. I've exhausted the static references and will be doing more work with live bios dumps via binwalk etc.Comment
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plzz need help remove password 8FC8 Suffix... -
Hello everyone
I attach a schematic and teardown photos for the DoCreate DHJ567 handheld spot welder. I bought this welder for temporary use while my supercapacitor welder was waiting for replacement parts. It cost only £24, though there is a screenless version available for £17.
Performance: The absolute maximum it can handle appears to be 0.15mm of pure nickel. Reliability was not great - welds were very inconsistent, ranging from weak attachment to burning through the strip. However, I was able to build a 5S2P pack without losing any cells. It's a bit difficult getting... -
Hello Community,
I'm attempting to reset the BIOS on a Dell 7220 rugged laptop.
It's a 8FC8
SN:7Q2PTG2
I've read a great post by Pier on this forum but there are some gaps in my knowledge.
Is there are paid program or way to get the master password?
If not what programmer should I get Svod3/4?
What software should I use with the programmer?
Where is the BIOS chip located on this computer model?
How to skilled members on this forum cook a new BIOS to remove the master password?
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Looking for some help with a bios password. Any help would be appreciated.
Dell Latitude 9410
Service Tag - H803043
Board - LA-J541P REV 1.0... -
Hi friends
I have reverse engineered this tester, schematic is attached and is complete except for capacitor values. These testers annoyingly have no model number but they are the ones you find on the first page of just about any website if you type in "18650 4-channel tester". There is also a 2-channel variant and a newer 8-channel variant. They are very cheap (about £15) and can measure voltage, current, internal resistance and capacity. They have a multicolour display for all these statistics. They also have terminal blocks so that if you want to use a breakout board...
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