Surface Laptop 3 1872 bios unlock

[shiyab]

Hi

Surface Laptop 3, model 1872, UEFI locked
Serial no:
012303595257
Please unlock

hi try and feedback

[janos6662000]

hi try and feedback

Hello shiyab
Thank you, i will try and get back with a feedback

[janos6662000]

hi try and feedback

Hello shiyab

I tried, unfortunately the laptop does not boot anymore.
Windows logo appears and disappears two times, but nothing after.
Before, I could get to UEFI, but it was password protected, now I cannot get there anymore.

[minhdigital]

Hello shiyab

I tried, unfortunately the laptop does not boot anymore.
Windows logo appears and disappears two times, but nothing after.
Before, I could get to UEFI, but it was password protected, now I cannot get there anymore.

Try

[janos6662000]

Try

Thank You, minhdigital
Unfortunately we probably overheated the chip, because i cannot read/write it anymore.
Luckily i have the good dump, i am waiting for a chip replacement.
Until then i send another dump from another Surface, maybe i solve this one

[janos6662000]

Hi

Surface Laptop 3, model 1872, UEFI locked
Serial no:
005912493657
Please unlock

[shiyab]

Hi

Surface Laptop 3, model 1872, UEFI locked
Serial no:
005912493657
Please unlock

hi try and feedback

[janos6662000]

Hi shiyab

Tested and i working great, thank you very much.

I have another question.
One more Surface Laptop 3, serial 044335202257
I read the dump, i thought that i figured out how to solve it and wrote back the dump modified by me.
Laptop is not starting, the Surface logo lights up one time and switches off.
I attach both locked and unlocked dumps, could you please check, if i did it right? Before i could enter the UEFI windows, but was asking for code.
Thank you one more time!

Best regards,
Janos

[shiyab]

Hi shiyab

Tested and i working great, thank you very much.

I have another question.
One more Surface Laptop 3, serial 044335202257
I read the dump, i thought that i figured out how to solve it and wrote back the dump modified by me.
Laptop is not starting, the Surface logo lights up one time and switches off.
I attach both locked and unlocked dumps, could you please check, if i did it right? Before i could enter the UEFI windows, but was asking for code.
Thank you one more time!

Best regards,
Janos

hi try

[janos6662000]

hi try

Hello shiyab
Thank you for yourhelp.
Unfortunately, the dump you sent is matching to the last byte the dump i tried to write back to the laptop.
Unfortunately the laptop isn't working with this content, only the logo flashes one time.
Not sure what is the next step.
I read the dump with multiple verifies, so the dump should be good.

[janos6662000]

hi try

Hello shiyab
I would like to correct my previous post: Your dump is working great, there was a bad soldering issue, the laptop did not read the flash correctly. What i don't understand is, that we resoldered it a few times, with same result. I was getting suspicious, when i programmed back the original dump and we got the same result.
Then we checked again all the soldering and laptop started working, unlocked.
Thanks again!

[janos6662000]

OK, one more, please
Just when i thought that i learned how to unlock, i got one Surface 3 Laptop, model 1872, serial number 021311600957
This one just flashes the logo once, then switches off.
It was never opened until now. I hope it is an UEFI issue, not a hardware issue.
I saw some cases when the poster solved it by an ME region cleaning...
Can anybody help me, what to try to start this one?
I attach original dump.

[onlymk]

I also want to build a firmware file for a Surface Laptop 3 1872 device with this model
SN:035922702157

[peste]

I also want to build a firmware file for a Surface Laptop 3 1872 device with this model
SN:035922702157

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