Dell Latitude 5400 Bios password

[Markus1741]

Hi all,

please help to remove pasword on below 5400.
I've tryed
1- Select the range 00045000 to 00048fff
2- Select "Edit" then "Fill"
3- Put "ÿ" in "Pattern" zone.
4- Choose "Fill selection" then clic on "Fill" button.
5- Save the new file."

but laptop didnt start

Model: Dell Latitude 5400
Board: EDC41LA-G892P
REV: 1.0 (A00)
SERVICE TAG: 9QGW3Z2-8FC8
read one CHIP GD25Q256DY1G

Thanks

Hello try this unlocked file ....

[moshu]

Hello try this unlocked file ....

Thanks Marcus,

I will really want to learn how you did that, because I still have 11 laptops to fix (same model), some with 2 bios chips some with one.
Is there a tutorial for beginners somewhere to follow?

Last night I've been able to fix other 2 laptops testing some of the bin files already shared on this thread, and found 2 files compatible (Latitude E5400_256_CLEAN.rar & BACKUP_DELL LATITUDE 5400 EDC41 LA-G891P REV 1.0(A00) 2019-03-28.rar)

[hoaca388]

Thanks Marcus,

I will really want to learn how you did that, because I still have 11 laptops to fix (same model), some with 2 bios chips some with one.
Is there a tutorial for beginners somewhere to follow?

Last night I've been able to fix other 2 laptops testing some of the bin files already shared on this thread, and found 2 files compatible (Latitude E5400_256_CLEAN.rar & BACKUP_DELL LATITUDE 5400 EDC41 LA-G891P REV 1.0(A00) 2019-03-28.rar)

https://www.badcaps.net/forum/troubl...s-out-for-free

[moshu]

https://www.badcaps.net/forum/troubl...s-out-for-free

Great, in the case of laptops with 2 BIOS chip I suppose I will have to patch both, I suppose

[moshu]

https://www.badcaps.net/forum/troubl...s-out-for-free

I've try link above but doesn't want to generate the patch file for the 16M chip, it does for the 8M chip instead. Below is the error:

Rex98 **Dell-8FC8-Patcher**
@Tecshack Cebu
Pag huwat ky ga patch pa!...in file W25Q128JV@SOIC8_61F0533_PSW_V2.BIN
wa nakit-an ang intel signature
Pinduta bisan unsang key para ma exit...

Please help me understand what I have to do next.

In the meantime if someone can patch both file for me

Model: Dell Latitude 5400
Board: EDC41LA-G891P
REV: 1.0 (A00)
SERVICE TAG: 61F05-8FC8

Thanks

[Markus1741]

I've try link above but doesn't want to generate the patch file for the 16M chip, it does for the 8M chip instead. Below is the error:

Rex98 **Dell-8FC8-Patcher**
@Tecshack Cebu
Pag huwat ky ga patch pa!...in file W25Q128JV@SOIC8_61F0533_PSW_V2.BIN
wa nakit-an ang intel signature
Pinduta bisan unsang key para ma exit...

Please help me understand what I have to do next.

In the meantime if someone can patch both file for me

Model: Dell Latitude 5400
Board: EDC41LA-G891P
REV: 1.0 (A00)
SERVICE TAG: 61F05-8FC8

Thanks

Hello,
Now you can see how well the Rex98 software works.
The 16MB Bios chip doesn't need to be patched because nothing is found in it.
If you have 2 chips, as in your case, you have to consider which of the two should be processed.
In your case only the 8MB chip needs to be written back.

[moshu]

Hello,
Now you can see how well the Rex98 software works.
The 16MB Bios chip doesn't need to be patched because nothing is found in it.
If you have 2 chips, as in your case, you have to consider which of the two should be processed.
In your case only the 8MB chip needs to be written back.

thanks, I've used the patch for the 8MB chip and initially computer restarted every 5 seconds Redo the soldering and is good now

Thanks again

[moshu]

thanks, I've used the patch for the 8MB chip and initially computer restarted every 5 seconds Redo the soldering and is good now

Thanks again

I've read the 8MB chip on the the 2nd Laptop , but Rex patcher doesnt recognize. I've read the 16MB as well, went through the patcher and the same.
Any idea what is wrong here?

[moshu]

I've read the 8MB chip on the the 2nd Laptop , but Rex patcher doesnt recognize. I've read the 16MB as well, went through the patcher and the same.
Any idea what is wrong here?

in the end I've write the same patch from the first computer to the 2nd and is working

[moshu]

hi, is me again, last laptop is giving me headache. I am not able to READ or FLASH the 8MB chip, as the other ones. Is giving an error :

Pin detected passed
Check ID Error!
Checked ID is : 0x FF FF FF
Wish to continue programming, please cancel[Check Device ID] option!

I did disable "Check ID" and reading went through, but writing Didn't.

Is there any solution for this issue?

Chip is the same as for the other ones so is not possible to pick a wrong chip from the list

Thanks in advance

[dhudz1968]

please help need to unlock
EDC41 LA-G891P REV 1.0
service tag:BJWDL33

THANK YOU

[shiyab]

please help need to unlock
EDC41 LA-G891P REV 1.0
service tag:BJWDL33

THANK YOU

hi try

[selcuk]

dell 5400 : S TAG : D0MXP13
ŞİFREYİ KALDIRMAMA YARDIMCI OLABİLİR MİSİNİZ?

[shiyab]

CAN YOU HELP ME REMOVE THE PASSWORD?

post snid

[selcuk]

dell latitue 5400
s tag : D0MXP13

D0MXP13-E7A8

[SMDFlea]

E7A8 suffix - https://www.badcaps.net/forum/troubl...23#post1622423

[shiyab]

dell latitue 5400
s tag : D0MXP13

D0MXP13-E7A8

hi try and feedback

[selcuk]

shiyb

thank you very much it works without any problems best regards

[MattiaGrylls]

Hi everyone, i,ve bought 4 dell 5400, all with same bios password. how can i reset they? i've read some pages of these topic, how can i post bios dump? i'm not so much expert, sorry.
please someone with patience can explane me step by step what i have to do? thanks a lot, have a happy new year. i'm italian

[peste]

Hi everyone, i,ve bought 4 dell 5400, all with same bios password. how can i reset they? i've read some pages of these topic, how can i post bios dump? i'm not so much expert, sorry.
please someone with patience can explane me step by step what i have to do? thanks a lot, have a happy new year. i'm italian

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

[brokemch0rd]

Hello, please help me to unlock my Dell latitude 5400
EDC41 LA-G891P REV 1.0 (UC5)
service tag: 8B41N13-8FC8

Thanks!