Dell Latitude 5400 Bios password

[Vesko356]

Re: Dell Latitude 5400 Bios password

Sorry but the display does not turn on.

it won't turn on even with your original file, because it's visibly incorrect in size (2.13 MB)

I didn't even tried to download this archive - 1.08 MB (2.13 MB here) is not a good read, it's too small and probably almost full of FF, did you used verification?
Read the chip at least twice, and compare both files. Use verification.

[SMDFlea]

Re: Dell Latitude 5400 Bios password

Sorry but the display does not turn on.

I'm trying to unlock it by my self, and i'm folowing this Guide https://www.badcaps.net/forum/showthread.php?t=88533.
the problem is that i can't find this version of flash image tool version 12.0.32.1420 to read my dump.
thank you for your help

Flash Image Tool is used to clean ME firmware. Flash Programming Tool is often used to backup a bios.If the flash descriptor is locked you will not be able to make a backup with it.In that case you must use an SPI programmer .

[LeaderMobility]

Re: Dell Latitude 5400 Bios password

it won't turn on even with your original file, because it's visibly incorrect in size (2.13 MB)

Thank you for your answers

It's working correctly with the original one, because there is tow types of bios in this model, a common one with one chip of 32mo and the one i have divided into two chip 8mo + 16mo.

Flash Image Tool is used to clean ME firmware. Flash Programming Tool is often used to backup a bios.If the flash descriptor is locked you will not be able to make a backup with it.In that case you must use an SPI programmer .

i finally read it using UEFItool and saved Me region but i still can't find a clean dump.

[Vesko356]

Re: Dell Latitude 5400 Bios password

the one i have divided into two chip 8mo + 16mo.

Тhen upload your 16Mb dump here.

[LeaderMobility]

Re: Dell Latitude 5400 Bios password

Тhen upload your 16Mb dump here.

Hi, this is the 16Mb dump, hope you will find me a solution.
thank you in advance.

[nonomanita]

Re: EDC41 LA-G894P Rev:1.0(A00)

please hep me bios loked .

[onizzbox]

Re: EDC41 LA-G894P Rev:1.0(A00)

please hep me bios loked .

@nonomanita
Dell 5400, read 8Mb chip

[nonomanita]

Re: Dell Latitude 5400 Bios password

onizzbox
Dell 5400, read 8Mb chip.

there is two bios chips w25q128 and gd25q80

[onizzbox]

Re: Dell Latitude 5400 Bios password

onizzbox
Dell 5400, read 8Mb chip.

there is two bios chips w25q128 and gd25q80

@nonomanita
Check the board, top and bottom side. You need to locate the chip where the file is 8Mb.

[SMDFlea]

Re: Dell Latitude 5400 Bios password

onizzbox
Dell 5400, read 8Mb chip.

there is two bios chips w25q128 and gd25q80

The GD25Q80 is 8-Mbit ,thats 8 Megabits = 1MB Megabyte https://datasheetspdf.com/pdf-file/7...vice/GD25Q80/1

The w25q128 is 16MB ,theres another 8MB chip somewhere

[nonomanita]

Re: Dell Latitude 5400 Bios password

These are pictures of the motherboard.

[SMDFlea]

Re: Dell Latitude 5400 Bios password

These are pictures of the motherboard.

You`re right there is no 8MB bios, checked the 16MB and it has consumer ME FW configuration. (ProSupport Plus ⦁

Expires 17 DEC 2022)

[nonomanita]

Re: Dell Latitude 5400 Bios password

You`re right there is no 8MB bios, checked the 16MB and it has consumer ME FW configuration. (ProSupport Plus ⦁

Expires 17 DEC 2022)

I'm sorry but I don't understand

[SMDFlea]

Re: Dell Latitude 5400 Bios password

I'm sorry but I don't understand

Thats ok,i don`t understand myself either. Just wait a while and someone will post a bios .

[nonomanita]

Re: Dell Latitude 5400 Bios password

Thats ok,i don`t understand myself either. Just wait a while and someone will post a bios .

Thanks man.

[L1MON1991]

Re: Dell Latitude 5400 Bios password

these are pictures of the motherboard.

my boar got one bios chip under the power charger conector

[kamalkharbanda]

Latitude E5400 8FC8 password

Help me to remove password from this bios. Any help would be appreciated. Thank you
Model is Latitude 5400. not E5400

[kamalkharbanda]

Re: Dell Latitude 5400 Bios password

I have done it myself . hurrah
thanks everyone

[Ghamidi]

Re: Dell Latitude 5400 Bios password

I have done it myself . hurrah
thanks everyone

Try..

[kamalkharbanda]

Re: Dell Latitude 5400 Bios password

Thanks to you Ghamidi
but its already done.
Thanks again