Dell Latitude 5420 Bios Password 8FC8

[peste]

Would be so kind to unlock Dell 5330...with bios password

ST: J623QL3
Model number: 0x0B03

post the original contents of the bios chip..

[T. Ferreira]

Would be so kind to unlock Dell 5330...with bios password

ST: J623QL3
Model number: 0x0B03

[iori1881]

try..

THANK YOU ...IT WORKS BUT THE FAN STILL SPINING AND MAKE NOISE

[LBTT1121]

Hello there !
Dell 5420 with bios password.
Service Tag: JD41BK3
Thanks in advance.

Pierre

try and feeedback

[SMDFlea]

https://www.badcaps.net/forum/troubl...23#post1622423

[desteny]

Hello there !
Dell 5420 with bios password.
Service Tag: JD41BK3
Thanks in advance.

Pierre

[peste]

hello everyone ... i need bios unlock for my dell 5420 ,s/n : 2VYR2D3

THANK YOU

try..

[iori1881]

hello everyone ... i need bios unlock for my dell 5420 ,s/n : 2VYR2D3

THANK YOU

[Screemer]

Try # 928

Thanks a lot.. Worked like a charm.. Actually posting from the 5420 right now. So very appreciated.

[hoaca388]

I am attaching my 2 bios files, the dump (that might be corrupt) and the fixed file that I have tried to restore back to the chip. However the computer doesn't give a beep or blink when reattching cmos battery and main battery, hooking up power supply through USB-C adapter. I have no clue if my bios dump is corrupt and that's the reason for the laptop not even showing Dell logo or what could be wrong.
8FC8_4_Cleared.bin cleared from BIOS passwords
8FC8_4_Cleared_FCFD.bin cleared from bios password and factory deafaulted
8FC8_original.bin original dump from bios chip, untouched
W25Q256FV.BIN unknown file, don't really know where it came from
W25Q256FV (1).BIN unknown file, don't really know where it came from

Try # 928

[Screemer]

Is this enough information hoaca388? And do you know if anything can be done?
Is it possible to use another flash file with the same suffix or something? Could a update file from Dell be used? I am at the moment waiting for a hopefully better tool cable than the one I initially used that didn't quite fit the chip so I had to bend the pins fairly much to get it to connect to the pins on the chip and that wasn't so smart since the pins on the tool it self broke off I noticed after I had finished.
I have now ordered this one that seem to be a bit better built. https://www.aliexpress.com/item/1005...-specification

If anyone could help out I would really appreciate it.

I am attaching my 2 bios files, the dump (that might be corrupt) and the fixed file that I have tried to restore back to the chip. However the computer doesn't give a beep or blink when reattching cmos battery and main battery, hooking up power supply through USB-C adapter. I have no clue if my bios dump is corrupt and that's the reason for the laptop not even showing Dell logo or what could be wrong.
8FC8_4_Cleared.bin cleared from BIOS passwords
8FC8_4_Cleared_FCFD.bin cleared from bios password and factory deafaulted
8FC8_original.bin original dump from bios chip, untouched
W25Q256FV.BIN unknown file, don't really know where it came from
W25Q256FV (1).BIN unknown file, don't really know where it came from

[LBTT1121]

Hey all joined this forum for this very purpose, I've been searching for hours for a solution hoping someone here can help
Dell 5430 with bios password.
Service Tag: FYSXST3-8FC
Thanks in advance.

attach bios dump

[fealessjiant]

Hey all joined this forum for this very purpose, I've been searching for hours for a solution hoping someone here can help
Dell 5430 with bios password.
Service Tag: FYSXST3-8FC
Thanks in advance.

[Bios White]

Latitude 5420

Service Tag: JQ5SZH3

Working OK, thank hoaca388

[peste]

Hello!
Can anyone help me !!
Dell 5420 with bios password.
Service Tag: 5QW67D3
Thanks in advance.

post the original contents of the bios chip..

[Lordemestre]

Hello!
Can anyone help me !!
Dell 5420 with bios password.
Service Tag: 5QW67D3
Thanks in advance.

[hoaca388]

I downloaded the BIOS from a forum, but it takes 30 seconds for the DELL logo to appear. Can someone help me fix clear ME this ? Thanks
Dell Latitude 5420
LA-K491P Rev: 3.0 A02
Service Tag : JQ5SZH3

Latitude 5420

Service Tag: JQ5SZH3

[Bios White]

I downloaded the BIOS from a forum, but it takes 30 seconds for the DELL logo to appear. Can someone help me fix clear ME this ? Thanks
Dell Latitude 5420
LA-K491P Rev: 3.0 A02
Service Tag : JQ5SZH3

[Screemer]

ST: JCNSXD3
I think I have v. 1.30.0 10 Aug 2023 version of the official Dell BIOS
at least I know it's a i7 processor and running OS from a SSD disk. I think it has 2 x 16Gb RAM

Is this enough information hoaca388? And do you know if anything can be done?
Is it possible to use another flash file with the same suffix or something? Could a update file from Dell be used? I am at the moment waiting for a hopefully better tool cable than the one I initially used that didn't quite fit the chip so I had to bend the pins fairly much to get it to connect to the pins on the chip and that wasn't so smart since the pins on the tool it self broke off I noticed after I had finished.
I have now ordered this one that seem to be a bit better built. https://www.aliexpress.com/item/1005...-specification

If anyone could help out I would really appreciate it.

[Screemer]

What is your serial number ? Please include as much machine information as possible.

ST: JCNSXD3
I think I have v. 1.30.0 10 Aug 2023 version of the official Dell BIOS
at least I know it's a i7 processor and running OS from a SSD disk. I think it has 2 x 16Gb RAM