need bios dump dell latitude 5420 (cpu 11th)

[mohammedsf]

Re: need bios dump dell latitude 5420 (cpu 11th)

Hello, there is a dell 5420 11th gen i5 with locked bios (board model GDF40 LA-K491P Rev 2.0), i've tried a dump belongs to someone else and it worked except that there's no nvme detection, when i went back to my original backed-up dump it didn't work, i think it's corrupted or something, could someone help to check and unlock please ?

here's my original dump

Any help with this one please..

[hoaca388]

Re: need bios dump dell latitude 5420 (cpu 11th)

Any help with this one please..

Try and feedback

[mohammedsf]

Re: need bios dump dell latitude 5420 (cpu 11th)

Try and feedback

not working, no reaction to power button :s

[hoaca388]

Re: need bios dump dell latitude 5420 (cpu 11th)

not working, no reaction to power button :s

It is possible that the mainboard was short-circuited or electrostatic shock during the previous bios flash process.

[mohammedsf]

Re: need bios dump dell latitude 5420 (cpu 11th)

It is possible that the mainboard was short-circuited or electrostatic shock during the previous bios flash process.

I've mentioned previously that something went wrong with the original locked backup during dumping, it became corrupted or something it doesn't work anymore..

on another hand a working dump was tested on my board and it works, i don't remember where i got it from but there's no nvme detection, editing and comparing to my originally locked dump reveals that the working dump is missing the option roms..

if my original locked dump can't be unlocked & fixed i would appreciate adding the missing roms to the working one..

both files are attached, thanks again for your help..

[hoaca388]

Re: need bios dump dell latitude 5420 (cpu 11th)

I've mentioned previously that something went wrong with the original locked backup during dumping, it became corrupted or something it doesn't work anymore..

on another hand a working dump was tested on my board and it works, i don't remember where i got it from but there's no nvme detection, editing and comparing to my originally locked dump reveals that the working dump is missing the option roms..

if my original locked dump can't be unlocked & fixed i would appreciate adding the missing roms to the working one..

both files are attached, thanks again for your help..

Is this your sevice tag : Service Tag: 214X633
Try:

[mohammedsf]

Re: need bios dump dell latitude 5420 (cpu 11th)

Is this your sevice tag : Service Tag: 214X633
Try:

No, my ST is: H5456D3

did the tech-guy screw with the original ?

[hoaca388]

Re: need bios dump dell latitude 5420 (cpu 11th)

No, my ST is: H5456D3

did the tech-guy screw with the original ?

I saw it on your file

[mohammedsf]

Re: need bios dump dell latitude 5420 (cpu 11th)

I saw it on your file

I see, so i believe my original is lost..

how to deal with lost/corrupted/dead chip in this situation ?

the second file (Working - missing Option ROMs.rar) works but lacks nvme drivers, can you fix it for me please,,

could it be flashed with a working official file ?

[hoaca388]

Re: need bios dump dell latitude 5420 (cpu 11th)

I see, so i believe my original is lost..

how to deal with lost/corrupted/dead chip in this situation ?

the second file (Working - missing Option ROMs.rar) works but lacks nvme drivers, can you fix it for me please,,

could it be flashed with a working official file ?

Using the above work files, please remove ME before use.

[hoaca388]

Re: need bios dump dell latitude 5420 (cpu 11th)

@mohammedsf, this is the file from #108, it has cleared ME

[innics]

dell latitude 5420 bios password

help me to clear password for dell latitude 5420 mainboard LA-K491P

[innics]

Re: dell 5420 bios password

this old file

[innics]

Re: need bios dump dell latitude 5420 (cpu 11th)

thank i will try

[hoaca388]

Re: dell 5420 bios password

this old file

clear password

[Kodza]

Re: need bios dump dell latitude 5420 (cpu 11th)

Hello guy got Dell Latitude 5420 LA-K491P with Government and computrace Service Tag 9FX21J3, Please help remove

[hoaca388]

Re: need bios dump dell latitude 5420 (cpu 11th)

Hello guy got Dell Latitude 5420 LA-K491P with Government and computrace Service Tag 9FX21J3, Please help remove

Try

[Bsolution]

Re: need bios dump dell latitude 5420 (cpu 11th)

Hello guy got Dell Latitude 5420 LA-K491P with Government and computrace Service Tag 9FX21J3, Please help remove

try and feedback

[Kodza]

Re: need bios dump dell latitude 5420 (cpu 11th)

Try

Hello friend, Thank you for the file. I have tried the file you sent, when I press the power button the keyboard light and power led turns on for 2 seconds and goes off and after 1 second keyboard lights on again and goes off same time and nothing happens, then I waited but nothing happens

[Kodza]

Re: need bios dump dell latitude 5420 (cpu 11th)

try and feedback

Thank you for the file brother unfortunately the laptop does not come on when I press the power button the keyboard lights up and goes off and then nothing happens after