Dell Latitude 5420 Bios Password 8FC8

[Dan2646]

Re: Dell Latitude 5420 Bios Password 8FC8

Dell e5420 bios admin unlock passcode need
Service tag J10D4D3
Attached backup file from bios

[yinlaino]

Re: Dell Latitude 5420 Bios Password 8FC8

Help, I put the patch on the bios but it doesn't deactivate the absolute

[qayyum786]

Re: Dell Latitude 5420 Bios Password 8FC8

help, i put the patch on the bios but it doesn't deactivate the absolute

why dont you post your backup + service tag ?

[yinlaino]

Re: Dell Latitude 5420 Bios Password 8FC8

why dont you post your backup + service tag ?

# 433

[qayyum786]

Re: Dell Latitude 5420 Bios Password 8FC8

# 433

chk

[yinlaino]

Re: Dell Latitude 5420 Bios Password 8FC8

chk

thanks bro I'm going to try

[yinlaino]

Re: Dell Latitude 5420 Bios Password 8FC8

chk

Bro, turn it on and off, I'm going to upload the original rom again and I thank you for your help.
Service Tag Number
HJ3F8G3

[qayyum786]

Re: Dell Latitude 5420 Bios Password 8FC8

bro, turn it on and off, i'm going to upload the original rom again and i thank you for your help.
Service tag number
hj3f8g3

try

[Dan2646]

Re: Dell Latitude 5420 Bios Password 8FC8

Anyone to confirm whether this backup is okay.its 64mb

[SMDFlea]

Re: Dell Latitude 5420 Bios Password 8FC8

Anyone to confirm whether this backup is okay.its 64mb

If you mean the one at post #441 no it isn`t ,its only 142.4 KB

BIOS guides, methods, resources and tools
https://www.badcaps.net/forum/showthread.php?t=103526
1. How to dump and flash
https://www.badcaps.net/forum/showpo...40&postcount=2

When flashing a BIOS always make a backup first. Take 2 or 3 different dumps and make sure they are identical.
On Windows, you can use the command "fc /b" to check if two dumps are identical.
Make sure that the dumps looks good, i.e. not filled with 0x00 or 0xFF. After compression, if the file has a size of only a few kilobytes, the EEPROM was most likely not read properly.

Additionally, please read the FAQ at: https://www.badcaps.net/forum/showthread.php?t=98665

.

[Dan2646]

Re: Dell Latitude 5420 Bios Password 8FC8

when i extract its 64mb the original file .try extracting

[hoaca388]

Re: Dell Latitude 5420 Bios Password 8FC8

when i extract its 64mb the original file .try extracting

This error is caused by the programmer, please change to another programmer, extract from the bios chip and unlock again.

[Anatom]

Re: Dell Latitude 5420 Bios Password 8FC8

Could someone please remove the password from this BIOS file please?
Latitude 5420 with 8FC8 suffix
service tag 12LL8G3
Thank you guys, and good luck!!!

[Phuoc Tan]

Re: Dell Latitude 5420 Bios Password 8FC8

Could someone please remove the password from this BIOS file please?
Latitude 5420 with 8FC8 suffix
service tag 12LL8G3
Thank you guys, and good luck!!!

Test and reply

[Anatom]

Thank you for your help!!! Everything works perfectly!!!

[leifalbor]

Re: Dell Latitude 5420 Bios Password 8FC8

Hey guys

Looking to get the password for Latitude 5340 with service tag 11PZLX3-8FC8
Is anyone able to point me in the right direction?
Thanks guys!

[hoaca388]

Re: Dell Latitude 5420 Bios Password 8FC8

Hey guys

Looking to get the password for Latitude 5340 with service tag 11PZLX3-8FC8
Is anyone able to point me in the right direction?
Thanks guys!

Read #450

[leifalbor]

Re: Dell Latitude 5420 Bios Password 8FC8

Read #450

Thanks Hoaca388. I had a look but most of it was way too confusing for me.

[hoaca388]

Re: Dell Latitude 5420 Bios Password 8FC8

Thanks Hoaca388. I had a look but most of it was way too confusing for me.

Link 2
You need a programmer, probably CH341A, this is the cheapest one, to read the bios chip content.There are many tutorials on Youtube.
Linh 1
How to unlock it

[rockybhag]

Re: Dell Latitude 5420 Bios Password 8FC8

Dell Latitude 5420/ 11th gen
Please Remove Password

S-Tag DLC26M3
Thank You

[SMDFlea]

Re: Dell Latitude 5420 Bios Password 8FC8

Dell Latitude 5420/ 11th gen
Please Remove Password

S-Tag DLC26M3
Thank You

BIOS guides, methods, resources and tools
https://www.badcaps.net/forum/showthread.php?t=103526
3. Password removal by laptop brand
https://www.badcaps.net/forum/showpo...42&postcount=4
3.4. Dell

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