Dell Latitude 5400 bios request

[LBTT1121]

hi, does anyone have flash dump bios latitude 5400 , service_tag: B5S8L13
thanks

post the contents of the bios chip even if it is corrupted..

The bios chip must be unsoldered from the board before writing or reading..
do not use the clip, you may have errors..if you do not have anything to unsolder it with,
solder wires between the programmer and the bios chip..

you need an SPI programmer

[kifnss]

post the contents of the bios chip even if it is corrupted..

The bios chip must be unsoldered from the board before writing or reading..
do not use the clip, you may have errors..if you do not have anything to unsolder it with,
solder wires between the programmer and the bios chip..

you need an SPI programmer

ok i made a bios dump

[LBTT1121]

ok i made a bios dump

try

[kifnss]

try

The laptop did not start, maybe it was caused by something else, but it was done before that update bios in ubuntu and after a couple of days while working it just turned off so I thought maybe it was a problem with the bios, I ordered the same notebook and I will make dumps and then check. then I will write back. thanks

[Jose_elec]

Hi, can someone please help me?
DELL LATITUDE 5400
SERVICE TAG 4Z590Z2
NO VIDEO


THANK YOU

[FredBrico]

I have a Dell Latitude 5400 that was my dads. The ssd was bitlocked so I've made an image of it incase we find the password but for now I want to try installing Zorin OS onto it. However to do that I need to disable some things in the bios but the bios is locked.

So my question is what info do I need to access to either change or remove the bios password? I saw people saying you need the 8MB chip dump, however I can't find that chip on the board. I found UC5 which is 16MB and UC6 is empty(doesn't have a chip).

[peste]

I have a Dell Latitude 5400 that was my dads. The ssd was bitlocked so I've made an image of it incase we find the password but for now I want to try installing Zorin OS onto it. However to do that I need to disable some things in the bios but the bios is locked.

So my question is what info do I need to access to either change or remove the bios password? I saw people saying you need the 8MB chip dump, however I can't find that chip on the board. I found UC5 which is 16MB and UC6 is empty(doesn't have a chip).

it should be a 32MB bios chip...look on the other side of the board...
post S/T, full name and model, motherboard model, ,etc.

post the contents of the bios chip...
The bios chip must be unsoldered from the board before writing or reading..
do not use the clip, you may have errors..if you do not have anything to unsolder it with,
solder wires between the programmer and the bios chip..

you need an SPI programmer...here is a video for example..https://www.youtube.com/watch?v=DWWigscuQDY&ab_channel=ThisIsHow

[FredBrico]

it should be a 32MB bios chip...look on the other side of the board...
post S/T, full name and model, motherboard model, ,etc.

post the contents of the bios chip...
The bios chip must be unsoldered from the board before writing or reading..
do not use the clip, you may have errors..if you do not have anything to unsolder it with,
solder wires between the programmer and the bios chip..

you need an SPI programmer...here is a video for example..https://www.youtube.com/watch?v=DWWi...nnel=ThisIsHow

Cheers for the response.

I've had a look at the back of the mobo but I cant seem to find anything that resembles what I'm looking for. There are 2 on the mobo I've been able to find that look like a bios chip. UC5 and UT6. Other than that Im unsure if I'm just not looking for the correct component. I'll put the info I currently have aswell as some images of the mobo.

Dell Latitude 5400
Service Tag : 1FLRP13
Board : LA-G894P

[klient]

heloo
Latitude 5400
Board: LA-G891P REV 1.0
Service Tag: FGJY2Z2
Processor: i5 8gen
no video
PLEASE REPAIR THIS BIOS

[shiyab]

heloo
Latitude 5400
Board: LA-G891P REV 1.0
Service Tag: FGJY2Z2
Processor: i5 8gen
no video
PLEASE REPAIR THIS BIOS

HI try

[klient]

thanks it works

[Elmoreno12]

hi please help me
late display 30 second, and not sound

Dell 5400
Service Tag : FB422R2
Mainboard : EDC41 LA-G891P Rev: 1.0 (A00)

[shiyab]

hi please help me
late display 30 second, and not sound

Dell 5400
Service Tag : FB422R2
Mainboard : EDC41 LA-G891P Rev: 1.0 (A00)

HI try

[Elmoreno12]

HI try

thanks my friends work perfect

[shiyab]

thanks my friends work perfect

[kifnss]

The laptop did not start, maybe it was caused by something else, but it was done before that update bios in ubuntu and after a couple of days while working it just turned off so I thought maybe it was a problem with the bios, I ordered the same notebook and I will make dumps and then check. then I will write back. thanks

this working dump

[CirebeaTiberiu]

Can someone remove password from this bios please

EDC41 LA-G892P
rev 1.0 (A00)

Service Tag S/N GLPG373

[SMDFlea]

https://www.badcaps.net/forum/troubl...23#post1622423 What suffix . You might be able to unlock it yourself.

[Hassani]

Any chance of removing the admin password from this one? This is a Dell latitude 5400, Service tag is 3G6SP13-BF97

[SMDFlea]

Post moved to latitude 5400 topic.

[shiyab]

Any chance of removing the admin password from this one? This is a Dell latitude 5400, Service tag is 3G6SP13-BF97

post backup bios

[Sparo]

Any chance of removing the admin password from this one? This is a Dell latitude 5400, Service tag is 3G6SP13-BF97

try this password y3kqZ6rnQrE5Nmj3 (Letters Z, Q, E and N are uppercase)

it must be entered with a US QWERTY Keyboard (you can use a USB keyboard)
> BIOS guides, methods, resources and tools - Badcaps Section 3.4. Dell

[Tesla]

Where is the "Like button"? I think this is excellent (and I don't even have a Dell Latitude 5400). I would tackle it via software tools vs hardware any day of the week. Like Sparo says fellas ... just read the words on the pages for real fixes.

[Sparo]

Affirmative. When it's possible and not too time-consuming decoding the password is always better than using the hardware Patch method. Agreed 💯

[jdjusic]

Need split bios for Dell Latitude 5400
DC41 LA-G891P Rev:1.0(A00)
For both UC5 and UC6 chips (8MB WSON + 16MB SOP8)
16MB part was modified without backup and corrupted.
Thanks in advance