Dell 8FC8 Bios Password Patcher

[Ghamidi]

Hello SMDFlea
i tested with dell latitude 5530 Not working
i upload orginal file and patched file making with LBE software It may help you to modify your script

[SMDFlea]

file not download sir

Invalid File Specified

Is there an updated link to the patcher download?

error message

The forum software has been updated,some things are not working and broken at the moment.

[logicboardre]

Is there an updated link to the patcher download?

[xbcom]

Invalid File Specified

[Phuoc Tan]

Re: Dell 8FC8 Bios Password Patcher

Thank you so much and I will try it

[flores]

Re: Dell 8FC8 Bios Password Patcher

What kind of wson8 I need? 6x8 or 5x6? Thanks

[SMDFlea]

Re: Dell 8FC8 Bios Password Patcher

Thanks for answer. For now I don't have the interface to read XMC eprom. Only one CH341A. I'll buy RT809F next time.

The CH341A can read some XMC chips if you use different software. Try NeoProgrammer .

[flores]

Re: Dell 8FC8 Bios Password Patcher

Possibly.Try it and let us know

Thanks for answer. For now I don't have the interface to read XMC eprom. Only one CH341A. I'll buy RT809F next time.

[dopin13]

Re: Dell 8FC8 Bios Password Patcher

Thank you very much worked on Precision 3541!

[SMDFlea]

Re: Dell 8FC8 Bios Password Patcher

Hello. For dell latitude 5420 work? Thanks

Possibly.Try it and let us know

[flores]

Re: Dell 8FC8 Bios Password Patcher

Hello. For dell latitude 5420 work? Thanks

[SMDFlea]

Re: Dell 8FC8 Bios Password Patcher

Does this work with Latitude 7420?

Yes it does.

[ecdw94]

Re: Dell 8FC8 Bios Password Patcher

Does this work with Latitude 7420?
Edit: Or rather, I also have the 8FC8 suffix, I am not sure if this is a suffix for the bios version or what. But it seems like my question is answered if I understood that correctly. Please correct me if I am wrong.

[poorrkkyy]

Re: Dell 8FC8 Bios Password Patcher

Thank you very much worked a treat

[SMDFlea]

Re: Dell 8FC8 Bios Password Patcher

hi am using the script and so far i have no succeed,but ill keep triying today,the error at 5mps is normal or only the four steps are needed to work?=

Update, i have succeded to unlock 2 machines with 32mb main bios, the script works !!! Thanks so much
@smdflea master!

The error message is there because i removed one of the scripts but i forgot to edit the batch files ,so yes the error is normal .The bat files can be edited to remove # 5 ,and the pause below it.

[volinakis]

Re: Dell 8FC8 Bios Password Patcher

Hi, I'm new here and I looked through the script and I'm trying to understand how / why this works.

I see that the script takes the region from 0x1000 with a length of 0x100000, which when analyzed by the UEFITool is the padding after the Descriptor region.

Then you are searching for "00 FC AA" and replacing it with "00 FC 00"

The script does it again for "00 FD AA" and replacing it with "00 FD 00"

The rest just combines everything together.

My question is this:
Why does this work? is it setting some bitflag that the bios loads up and checks to see if its locked?

The region starts with P H C M, is this the code that runs and is that an opcode for a conditional branch or some other instruction?

Sorry if my questions are dumb.

Why does this work?

because modification is putting bios in factory mode, used in factory assembly lines.

[blackshift]

Re: Dell 8FC8 Bios Password Patcher

Hi, I'm new here and I looked through the script and I'm trying to understand how / why this works.

I see that the script takes the region from 0x1000 with a length of 0x100000, which when analyzed by the UEFITool is the padding after the Descriptor region.

Then you are searching for "00 FC AA" and replacing it with "00 FC 00"

The script does it again for "00 FD AA" and replacing it with "00 FD 00"

The rest just combines everything together.

My question is this:
Why does this work? is it setting some bitflag that the bios loads up and checks to see if its locked?

The region starts with P H C M, is this the code that runs and is that an opcode for a conditional branch or some other instruction?

Sorry if my questions are dumb.

[retrooo]

Re: Dell 8FC8 Bios Password Patcher

hi am using the script and so far i have no succeed,but ill keep triying today,the error at 5mps is normal or only the four steps are needed to work?=

Update, i have succeded to unlock 2 machines with 32mb main bios, the script works !!! Thanks so much
@smdflea master!

smdflea

[Maxpower3]

Re: Dell 8FC8 Bios Password Patcher

Well done good job, thanks very much
not all understood either but I'll look at it

[volinakis]

Re: Dell 8FC8 Bios Password Patcher

Great job as usual, SDMDFlea!