latitude 5440 la-m401p la-m402p password

[rex98]

Dell latitude 5440 LA-M401P with bios password
ST: 9XTX9Y3

please help

1st boot, press F2, write service tag, disable Absolute, save (Apply changes), restart. 2nd boot press Alt+F to exit manufacturing mode

[Blaze Tech]

Dell latitude 5440 LA-M401P with bios password
ST: 9XTX9Y3

please help

TRY

[cenalex1981]

HELLO everybody, sorry im new in this kind of stuff 😅

Dell latitude 5440 la-m401p administrator BIOS password locked

Anyhelp please to unlock?

S/T: DVGSTV3

Hope someone can help me, thx in advance

[rex98]

HELLO everybody, sorry im new in this kind of stuff 😅

Dell latitude 5440 la-m401p administrator BIOS password locked

Anyhelp please to unlock?

S/T: DVGSTV3

Hope someone can help me, thx in advance

Bios is obviously corrupt.

[ahmed100]

1st boot, press F2, write service tag, disable Absolute, save (Apply changes), restart. 2nd boot press Alt+F to exit manufacturing mode

Think you its working for me

TRY

Think you

[pavel.be]

Dell latitude 5440 la-m401p administrator BIOS password locked

Anyhelp please to unlock?

S/T: 9H9J9Y3

[volinakis]

Dell latitude 5440 la-m401p administrator BIOS password locked

Anyhelp please to unlock?

S/T: 9H9J9Y3

here. let it run for 2 minutes, it will restart several times with no image. 1st boot, press F2, write service tag, save (Apply Changes), 2nd boot press alt+F to exit factory mode.

[CornholioGSM]

Hello hello,

Please for unlock my dump.

Stag: DPZJ114

[volinakis]

Hello hello,

Please for unlock my dump.

Stag: DPZJ114

try

[CornholioGSM]

try

working THANK YOU

[anlsmith]

can someone please unlock this bios file for me dell 5440 la-m401p

[volinakis]

can someone please unlock this bios file for me dell 5440 la-m401p

serial number? Your bios backup is corrupted (look at compression, 32Mb into 167KB), read again bios chipset 3-4 times and compare results, when you have 2 identical means you have a good backup.

[anlsmith]

J3VBSV3

[rex98]

J3VBSV3

upload the 16mb chip

[chankoro]

Dell latitude 5440 Reg type : P165G002 with bios password
ST: DLGPTT3
please help

[peste]

Dell latitude 5440 Reg type : P165G002 with bios password
ST: DLGPTT3
please help

read the rules..https://www.badcaps.net/forum/troubl...before-posting

post the original bios of the laptop

[ahmed lachtar]

Hello,

This is my first BIOS unlock and I congratulate you guys for understanding this Rocket Science stuff.

So, I have a bios locked DELL Latitude 5440 (motherboard la-m401p) and serial number ST: J6BKSV3.

I have two chips that look like a bios :
- Winbond 25R128JVS -> Dissoldered and read content (backup validated twice)
- Winbond 25Q256JVEN -> Not read yet, I don't have the part to read it

The bios dump I read is 16Mb and I see that in this thread most of the dumps are 32Mb. So either I read the wrong chip or I don't have the same configuration as you.

Thank you in advance.

[struart]

HI ahmed lachtar
Upload Winbond 25Q256JVEN which is 32MB flash. Your 16MB dump dont have required data to modify

[ahmed lachtar]

Thank you Struart, I will dissolder and send the dump here

[ahmed lachtar]

Do you have an idea how to dissolder this chip ? With the 16Mb, it was quite easy because the pins were exposed, I added solder and the used the air gun. But with this one the pins are quite small. I tried adding flux and rising the temps (400°C) but no luck. Here is the image, it's the chip on the right.