need bios dump dell latitude 5420 (cpu 11th)

[i4mm3]

Re: need bios dump dell latitude 5420 (cpu 11th)

My programmer cannot identify the BIOS ic.
It is:
XMC
25RH256CXIQ

I'm using ch341A, EZP2019+, and RT809F Programmers. All softwares are up to date. I need to unlock this Dell 5420 11th Gen Laptop

Thanks in advance

[hoaca388]

Re: need bios dump dell latitude 5420 (cpu 11th)

Hello friend, Thank you for the file. I have tried the file you sent, when I press the power button the keyboard light and power led turns on for 2 seconds and goes off and after 1 second keyboard lights on again and goes off same time and nothing happens, then I waited but nothing happens

Try with clearME file

[Kodza]

Re: need bios dump dell latitude 5420 (cpu 11th)

Compare the two files with the Hex editor and note the locations of the differences. Only 3 points.

Hello friends I got Dell 5420 11th gen with password so I have compared almost all unlocked files with hex editor on this thread to see how I can unlock mine but it seems there is differences because I thought the password is stored in the same offset so was wondering if I am missing something. I am not well vested with bios editing of the new bios. I have attached my locked file if anyone can help unlock and also give tips on how to do it.Thanks

[anhbanxoi]

Re: need bios dump dell latitude 5420 (cpu 11th)

Hello friends I got Dell 5420 11th gen with password so I have compared almost all unlocked files with hex editor on this thread to see how I can unlock mine but it seems there is differences because I thought the password is stored in the same offset so was wondering if I am missing something. I am not well vested with bios editing of the new bios. I have attached my locked file if anyone can help unlock and also give tips on how to do it.Thanks

[hoaca388]

Re: need bios dump dell latitude 5420 (cpu 11th)

Hello friends I got Dell 5420 11th gen with password so I have compared almost all unlocked files with hex editor on this thread to see how I can unlock mine but it seems there is differences because I thought the password is stored in the same offset so was wondering if I am missing something. I am not well vested with bios editing of the new bios. I have attached my locked file if anyone can help unlock and also give tips on how to do it.Thanks

Unlocked

[osman68i]

Re: need bios dump dell latitude 5420 (cpu 11th)

hi,
someone can remove pass?

latitude 5420 la-k491p

[hoaca388]

Re: need bios dump dell latitude 5420 (cpu 11th)

hi,
someone can remove pass?

latitude 5420 la-k491p

vĩ độ 5420 la-k491p

[osman68i]

Re: need bios dump dell latitude 5420 (cpu 11th)

thank you hoaca388

its working

[GrassPlus]

Re: need bios dump dell latitude 5420 (cpu 11th)

vĩ độ 5420 la-k491p

Please, can help me remove pass

[hoaca388]

Re: need bios dump dell latitude 5420 (cpu 11th)

Please, can help me remove pass

remove pass

[GrassPlus]

Re: need bios dump dell latitude 5420 (cpu 11th)

remove pass

Thank you very much!!!

[gclagos0523]

Re: need bios dump dell latitude 5420 (cpu 11th)

Please help, need to unlocked my bios file forgot admin pass..

Dell Latitude 5420 LA-K491P Rev. 3.0

Thank you in advanced..

[anhbanxoi]

Re: need bios dump dell latitude 5420 (cpu 11th)

Please help, need to unlocked my bios file forgot admin pass..

Dell Latitude 5420 LA-K491P Rev. 3.0

Thank you in advanced..

Unlocked

[gclagos0523]

Re: need bios dump dell latitude 5420 (cpu 11th)

Unlocked

Thank you so much, I will try it now, and feedback..

[gclagos0523]

Re: need bios dump dell latitude 5420 (cpu 11th)

Unlocked

Thank you again.. It's working now..

[gclagos0523]

Re: need bios dump dell latitude 5420 (cpu 11th)

Unlocked

The Admin locked return when I finished settings it up and after reboot it ask again for admin password?

Any suggestion what should I do?

Thank you..

[Vesko356]

Re: need bios dump dell latitude 5420 (cpu 11th)

The Admin locked return when I finished settings it up and after reboot it ask again for admin password?

Any suggestion what should I do?

Thank you..

>

[smallvhin]

Re: need bios dump dell latitude 5420 (cpu 11th)

master pls..
help me to clear my bios password
TIA.

[Vesko356]

Re: need bios dump dell latitude 5420 (cpu 11th)

master pls..
help me to clear my bios password
TIA.

>

[smallvhin]

Re: need bios dump dell latitude 5420 (cpu 11th)

>

thanks I will try later.