Dell Latitude 5420 Bios Password 8FC8

[peste]

It wasn't the clip I used, I used a WSON8 Pogo, is that still no good?

Do you know if when the chip is unsoldered, can it be read with something like this?

if you have a 25rh256cxiq bios chip this adapter is good..

[lapfix]

Here's the 4 versions i made

Try this
https://www.badcaps.net/forum/troubl...60#post1708760

Post n #5

[Smersh1008]

Try this
https://www.badcaps.net/forum/troubl...60#post1708760

Post n #5

It's working, thank you so much ! The ST is different (is it a big deal ?) and worse, now the fan no longer starts. Could it be because of the bios?

[Smersh1008]

It's working, thank you so much ! The ST is different (is it a big deal ?) and worse, now the fan no longer starts. Could it be because of the bios?

Correction, i updated the bios and now it works perfectly. Thank you all !

[botsiah]

Hi.Please help to unlock my bios password Latitude 5420.
Thank you in advanced.

ST: 3Q7F8K3

[hoaca388]

Hi.Please help to unlock my bios password Latitude 5420.
Thank you in advanced.

ST: 3Q7F8K3

Wrong chip.

[crownmobile3]

Kindly Clear Admin Password Plz

GDF40 LA-K491P Rev: 2.0 (A01)
ServiceTag: CYVC4M3
Express : 28229871963

[peste]

Kindly Clear Admin Password Plz

GDF40 LA-K491P Rev: 2.0 (A01)
ServiceTag: CYVC4M3
Express : 28229871963

try...

[Pedro Caiado]

Good afternoon.

I can't join on my computer... I mean, not even in the windows, so I only can go to BIOS booting mode.
So I need to format my laptop, but has an admin password to boot from my Pen.
I searched a lot to solve my problem but I can't go any further.
Can you help me ?
Laptop: Dell Latitude 5420 model P137G i5.
Service Tag: H6YNNQ3
Thanks in advance.

[SMDFlea]

Good afternoon.

I can't join on my computer... I mean, not even in the windows, so I only can go to BIOS booting mode.
So I need to format my laptop, but has an admin password to boot from my Pen.
I searched a lot to solve my problem but I can't go any further.
Can you help me ?
Laptop: Dell Latitude 5420 model P137G i5.
Service Tag: H6YNNQ3
Thanks in advance.

Post moved to 5420 thread topic. If the password suffix is 8FC8 we can only help you if you post your bios backups, you will need an SPI programmer to do that, read the bios guides, https://www.badcaps.net/forum/troubl...rces-and-tools

[crownmobile3]

try...

No display after flash Pached File sir.
I think it was my mistake while backing up BIOS.bin, so I backed up again and posted again for Password removal, sir.
Thanks sooo much sir for ur Efforts.

[peste]

No display after flash Pached File sir.
I think it was my mistake while backing up BIOS.bin, so I backed up again and posted again for Password removal, sir.
Thanks sooo much sir for ur Efforts.

try..

[crownmobile3]

try..

Thanks sir, But no display, only Solid Colours are showing then restarts again. Thanks

[b4rdock]

Thanks sir, But no display, only Solid Colours are showing then restarts again. Thanks

try and comment

[Harvey Merrah]

Re: Dell Latitude 5420 Bios Password 8FC8

good afternoon, I have a dell latitude 5420 with locked bios and computrace
Could you help me
Thank you

[lapfix]

Re: Dell Latitude 5420 Bios Password 8FC8

good afternoon, I have a dell latitude 5420 with locked bios and computrace
Could you help me
Thank you

Yes we can help you....but you must upload your dump here

[Harvey Merrah]

Yes we can help you....but you must upload your dump here

i'am a noob... how do you do this... sorry

[lapfix]

i'am a noob... how do you do this... sorry

Do you have a hot air..a bios programmer !

[crownmobile3]

try and comment

Hello Sir, Thanks for efforts, but still same SOLID COLOURS only, no display, when i put old bios luckily have display but with Admin Password.
I am also wondered how is can happen.

[GACEM BEN YEDDER]

Hello,
My Dell Latitude 5420 is stuck on the Dell Security Manager message at startup. I can't do anything.
Here is my BIOS.
If someone could remove my BIOS password so I can reflash it later, please.
It's an 8FC8.
ST/SN: 17CHBY3.
Thanks.