Dell Latitude 5431 issues with dumping bios

[Sathsul]

So, i kinda spend significant ammount of the last couple of days trying to flash a new bios, and or unlocking the current bios password with little to no results.
The whole thing started with it being the 8fc8 bios, i found the tools to unlock that but i needed a bios dump. So i pursued that, im at a point where i dessoudered the chip, and succesfully soudered it to the ch341, dumped whatever was on it.
However, the tools supposed to unlock the 8fc8 say that there is no 8fc8 hex inside. And when i followed diffrent tutorials to just flash a new bios onto the chip i got stuck on the step when you need to find the exact line on the new bios that your old bios starts with.
That prompted me to go down google/forums rabbit hole of searching and trying diffrent things, UEFItool says that this bin may be corrupted, i got lost in tabs i opened in the browser and i relised that in fact i was out of my depth like couple of hours ago.
it all kind led me to belive that the bios dump that i have is either corupted, im not reading it correctly, both, or neither and i in fact have no idea what im talking about.

It would be ideal if i could have the opportunity to actually understand the proccess and what and where i did wrong.
Does anyone have any idea if that dump is in fact correct and intact or am i missing something obvious.

Laptop Dell Latitude 5431
service tag DK55WV3
Laptop was booting before dissasembly with no obvious flaws, other then being blocked by that password.

Chip is i belive winbond 25r128jvsn

I was using NEOProgrammer to read the IC, bin in the attachment.

Clues and help would be appriciated,

[SMDFlea]

Clues and help would be appriciated,

There are 2 bios chips, the code is split across both. The one with the pass is 8MB , go find that chip it`s the one next to the rabbit hole

[hoaca388]

So, i kinda spend significant ammount of the last couple of days trying to flash a new bios, and or unlocking the current bios password with little to no results.
The whole thing started with it being the 8fc8 bios, i found the tools to unlock that but i needed a bios dump. So i pursued that, im at a point where i dessoudered the chip, and succesfully soudered it to the ch341, dumped whatever was on it.
However, the tools supposed to unlock the 8fc8 say that there is no 8fc8 hex inside. And when i followed diffrent tutorials to just flash a new bios onto the chip i got stuck on the step when you need to find the exact line on the new bios that your old bios starts with.
That prompted me to go down google/forums rabbit hole of searching and trying diffrent things, UEFItool says that this bin may be corrupted, i got lost in tabs i opened in the browser and i relised that in fact i was out of my depth like couple of hours ago.
it all kind led me to belive that the bios dump that i have is either corupted, im not reading it correctly, both, or neither and i in fact have no idea what im talking about.

It would be ideal if i could have the opportunity to actually understand the proccess and what and where i did wrong.
Does anyone have any idea if that dump is in fact correct and intact or am i missing something obvious.

Laptop Dell Latitude 5431
service tag DK55WV3
Laptop was booting before dissasembly with no obvious flaws, other then being blocked by that password.

Chip is i belive winbond 25r128jvsn

I was using NEOProgrammer to read the IC, bin in the attachment.

Clues and help would be appriciated,

Yes, there is no 8FC8 hex code in the file you posted, that chip only contains Me region, read the 32MB chip.

[Sathsul]

i have the other "bios looking chip" dessoudered as well, will try that and come back with an update.

[SMDFlea]

Yes, there is no 8FC8 hex code in the file you posted, that chip only contains Me region, read the 32MB chip.

Is it 32 (ME) + 16 (Region) or 8 + 16 , i didn`t check

[LBTT1121]

16Mb and 32Mb, read 32Mb and used 8FC8 Patch

[Sathsul]

Is it 32 (ME) + 16 (Region) or 8 + 16 , i didn`t check

The second chip i have out is 8mb and i can't seem to locate another one on the motherboard that looks the part.
This one also doesnt contain the 8fc8 hex

the two spots i circled are where the two chips come from

[Sathsul]

Unless it's this fella right here

[SMDFlea]

Unless it's this fella right here

[m1ch43lzm]

Unless it's this fella right here

This looks like it
EDIT: Replied too late...

[Sathsul]

So, i come bearing news.

it was in fact there, the 8fc8 patcher did its job. I promptly wiped the chip, flashed the unlocked bios, verified ic integrity, aaaaand it's dead.
On the first boot it was spinning the fans top speed and after a minute or so it died, now is not responsive.

Now i assume me taking out chips left and right, heating up the bloody thing may or may not have something to do with it being bricked now. Still this was a learning experience and i do feel i learned a lot. Even if i have nothing to show for it.
i did try reseating all the chips i vandalised but still shows no signs of life.