Dell Latitude 5420 Bios Password 8FC8

[tktrom]

Re: Dell Latitude 5420 Bios Password 8FC8

good afternoon, still continue with computrace
Thank you

[hoaca388]

Re: Dell Latitude 5420 Bios Password 8FC8

good afternoon, still continue with computrace
Thank you

Here. In the first boot , you have to goin to bios setting for disable all the security options.

[jblow2210]

Re: Dell Latitude 5420 Bios Password 8FC8

Hello All,

I'm pretty much a newbie at doing this but would like to learn the steps needed to edit the BIOS from a system board.

I need help to remove the admin password from the BIOS on my Dell Latitude 5420. In researching this site, it appears I need to first get the bios file. The original SSD is missing from the laptop but I have replaced it with a new one so no OS to work from.

Motherboard info:
GDF40 LA-K491P
Rev: 3.0(A02)
2021-04-28

Copyright 2020
Rev: A02
PWB:67X1G

In searching through this forum, I believe I have identified the BIOS chip on the board. I found it located above DIMM Slot B, next to the processor (label on the system board is UC2 JUC2). The info on the chip is:

XMC
25RH256CXIQ
PPE46700 01
2121U

THe BIOS is an 8FC8.

I don't have a programmer to read the chip so I will need to get one. My first question, does anyone have any recommendations as to the best programmer as well as software package to pull the code off the bios chip?

Again, trying to learn the steps to do this, I have a few questions:

When pulling the BIN from the BIOS, the system board is disconnected from all power?
I can upload the BIN file to a thread on this forum and ask a kind soul to help remove the PW but I'm willing to give it a shot if someone could point me to how to do that.

I'm attaching some photos of the board and what I believe is the bios chip locatation as reference.

Any guidance to help me through this would be greatly appreciated.

Thanks

[hoaca388]

Re: Dell Latitude 5420 Bios Password 8FC8

I'm using Flytech SP20P and it recognizes this chip well.
https://www.sflytech.com/English/Pro...986173950.html

and this tool : https://item.taobao.com/item.htm?spm...0602261764&mt=

[tktrom]

Re: Dell Latitude 5420 Bios Password 8FC8

Thank you very much, perfect job, you are a teacher

[aldopc]

Re: Dell Latitude 5420 Bios Password 8FC8

Hi friends, unlock please latitude 5420 computrace please

[aldopc]

Re: Dell Latitude 5420 Bios Password 8FC8

Hi friends, unlock please latitude 5420 computrace please

Helpme please

[tktrom]

Re: Dell Latitude 5420 Bios Password 8FC8

Good afternoon, could you please help me unlock (admin password, computrace) this bios is a Dell Latitude 5420
Thank you

[hardware1]

Re: Dell Latitude 5420 Bios Password 8FC8

Good afternoon, could you please help me unlock (admin password, computrace) this bios is a Dell Latitude 5420
Thank you

Try this file and give me the results.

[aldopc]

Re: Dell Latitude 5420 Bios Password 8FC8

Helpme please

Solved

[tktrom]

Re: Dell Latitude 5420 Bios Password 8FC8

Try this file and give me the results.

@hardware1 , works perfect
Thank you

[sdm.tech]

Re: Dell Latitude 5420 Bios Password 8FC8

hello , dell 5420 password bios. can you help me?

[Shanagains9211]

Re: Dell Latitude 5420 Bios Password 8FC8

bios is locked on dell 5420. not sure if this is the right bios file. if someone could let me know and unlock would greatly appreciate it.

[hardware1]

Re: Dell Latitude 5420 Bios Password 8FC8

bios is locked on dell 5420. not sure if this is the right bios file. if someone could let me know and unlock would greatly appreciate it.

Wrong chip, your chip size must be 64Mbit, 128Mbit or 256Mbit. not only 8Mbit!
Look for another chip.

[macsoftware]

Re: Dell Latitude 5420 Bios Password 8FC8

Hello,
Can someone help to unlock this bios for dell 5420?
Thank you

[hardware1]

Re: Dell Latitude 5420 Bios Password 8FC8

Hello,
Can someone help to unlock this bios for dell 5420?
Thank you

Here's your Unlocked file.

[macsoftware]

Re: Dell Latitude 5420 Bios Password 8FC8

thank you

[nabilgo]

locked bios dell 5420

can anyone unlock it for me

dell 5420

[hardware1]

Re: locked bios dell 5420

can anyone unlock it for me

dell 5420

Here's your Unlocked file, hope it works fine.

[nabilgo]

Re: locked bios dell 5420

Here's your Unlocked file, hope it works fine.

working perfect thank you so much