need bios dump dell latitude 5420 (cpu 11th)

[danito]

Mainboard LA-k491P
servicetag 7S566D3-8FC8
can sombody please remove the supervisorpw.
thanks im advance

try

[appie1206]

try

Thanks amigo it worked.... have a nice weekend💪🏾

[mesta83]

Hi I have a 5420 with locked bios. ST: 8BYKCB3 . Can anyone unlock please

[hoaca388]

Hi I have a 5420 with locked bios. ST: 8BYKCB3 . Can anyone unlock please

Unlocked

[mesta83]

That worked great thank you so much. I have a second one if you don't mind please. ST : 1RNKCB3

[hoaca388]

That worked great thank you so much. I have a second one if you don't mind please. ST : 1RNKCB3

Unlocked

[arashmoayyedizadeh]

hello dear engineers
i have a dell 5420 that had password
other service shop tried to remove password but bios ic is damaged for some reason so i have no dump now and the device came to me no power
i have changed the bios ic and tried some dump from this thread but none of them worked
with some of them it turns on and after some time the fan goes high
with one of them the lcd test mode activated and colurs started changing
with on of them the device shows dell logo but doesnt go any further
im really stuck here
i will really appreciate if someone help me with this

motherboard: gdf40 la-k491p rev 2.0
device; dell latitude 5420 with 1135g7 cpu
service tag: 1Y4YFK3

[hoaca388]

hello dear engineers
i have a dell 5420 that had password
other service shop tried to remove password but bios ic is damaged for some reason so i have no dump now and the device came to me no power
i have changed the bios ic and tried some dump from this thread but none of them worked
with some of them it turns on and after some time the fan goes high
with one of them the lcd test mode activated and colurs started changing
with on of them the device shows dell logo but doesnt go any further
im really stuck here
i will really appreciate if someone help me with this

motherboard: gdf40 la-k491p rev 2.0
device; dell latitude 5420 with 1135g7 cpu
service tag: 1Y4YFK3

What files are those ?

[arashmoayyedizadeh]

What files are those ?

Unfortunately the customer didnt let me work on device
sorry for late reply
Thank you 100 times for your reply

[kamis123]

helo,

pleas someone unlock my bios, and clear mRegion.

model: 5420
S T : 6 6 9 G 1 f 3

[danito]

helo,

pleas someone unlock my bios, and clear mRegion.

Provide the full machine model number, serial number (or Service tag, SNID) and the board model number (see https://www.badcaps.net/forum/showthread.php?t=88758 ) ,The serial number, make, full model number, motherboard model and revision (except QR codes) must be written/typed at your request as per the rules. Not as a picture, part of the file name and so on.

[andresi]

Help ,,

i have some experiment with 2 dell 5420 (gdf40 la-k491p rev 2.0), which one is demaged Bios and I don't have any backup for this laptop, and another one is good(before is bios lock) and now is already unlock. so i try with buying some ic bios(MX25L25633F) this is the model 3,3v and have 32MB storage, i already flashing with many file from this thread, and no one is working fine, like any colour in display, and stuck on logo. so i try experiment with another one, the ic another one with code (GD25Q256D) the working one, i flash bin file with this thread to this ic, and i soldering to demaged one, now the demaged one is working fine now.. so i've so many question, Is the problem with IC code? Is there a difference even though the storage and voltage are the same? should i buying another one chip (GD25Q256D) ? or any solution for this problem ?

thank you very much !!
the S/n demaged : 1V3LXD3
the S/n working one : 3CSLXD3

[andresi]

my thread before has typo (GD25Q256D), the correct is (GD25R256D)
***Update***

i ordered the same model of demaged bios before is (GD25RH256) i flash with bios bin from telegram, and now the laptop is working fine now.
so I assume this is a problem with the IC frequency or RPMC support? ihv no idea LOL

[Brad Armstrong]

Need password for bios lock out . Please help me out ive been trying to get this done for 5 hours now im on my last leg.
Dell lattitude 5420 core i7 11th Gen
service tag- 7L75NN3-8FC8

[SMDFlea]

Need password for bios lock out . Please help me out ive been trying to get this done for 5 hours now im on my last leg.
Dell lattitude 5420 core i7 11th Gen
service tag- 7L75NN3-8FC8

Can`t help unless you post your bios backups.

[vladutmanole]

Hello!

Need bios security manager removed.
MB: GDF40 LA-K491P
REV 2.0 (A01)
Service Tag: 9BB47D3

Thank you!

[qayyum786]

Try

[vladutmanole]

Try

Thank you!

Worked! You are the best!

[Tanner Daugherty]

Requesting a bios unlocking, would prefer to not have such expensive e-waste

motherboard: gdf40 la-k491p rev 2.0
device: dell latitude 5420 with 1135g7 cpu
service tag: J9Q93F3

[futadmytro]

Pleace help to unlock

ST: B78MXD3