Microsoft Surface Pro 7 NEED BIOS. HELP!

[magneh]

Re: Microsoft Surface Pro 7 NEED BIOS. HELP!

@magneh
I've taken PESTE bios (post #8) and complemented it with your bios (bkp.zip, post #29), invalidated "SetOEMStrings" UEFI variable... but seen other Dfcixxxx UEFI variables too.
If this bios works it will be your starting point, then you can take care of the MDM/DFCI.

@AAAC

Thank you, really appreciated you took the time.
Gonna test in a bit and let you know.

[magneh]

Re: Microsoft Surface Pro 7 NEED BIOS. HELP!

@magneh
I've taken PESTE bios (post #8) and complemented it with your bios (bkp.zip, post #29), invalidated "SetOEMStrings" UEFI variable... but seen other Dfcixxxx UEFI variables too.
If this bios works it will be your starting point, then you can take care of the MDM/DFCI.

Thanks again AAAC.

Device booted with your dump!
I can see now the touch firmware version also, but touch still does not work.
Device was brought to me already disassembled, even if screen not broken, touch could be defective itself.

Regarding the MDM/DFCI , I suppose I should try to update firmware in windows to see if everything is good?
Ive seen that bitlocker is active, so I couldnt get to login screen

Thanks again for your help!
Saludos a Mexico

[AAAC]

Re: Microsoft Surface Pro 7 NEED BIOS. HELP!

@magneh
Try to check Touch connector, ripped flat cable, etc.
Have you tried to use your own "bkp.zip" (post #29) file? to me seems to have the correct structure, have patched the SetOEMString UEFI variable too on this one.
(The other "original.zip" file from post #29 is damaged)

[magneh]

Re: Microsoft Surface Pro 7 NEED BIOS. HELP!

@magneh
Try to check Touch connector, ripped flat cable, etc.
Have you tried to use your own "bkp.zip" (post #29) file? to me seems to have the correct structure, have patched the SetOEMString UEFI variable too on this one.
(The other "original.zip" file from post #29 is damaged)

Hello AAAC!

Thanks for checking that bkp.zip dump.
Ive just tried it, and it works!

Same touch firmware version, but now works perfectly.

Thanks for helping me with this one!

Saludos para zapatecas!
Gracias amigo.

[ahmypc]

Re: Microsoft Surface Pro 7 NEED BIOS. HELP!

@magneh
Try to check Touch connector, ripped flat cable, etc.
Have you tried to use your own "bkp.zip" (post #29) file? to me seems to have the correct structure, have patched the SetOEMString UEFI variable too on this one.
(The other "original.zip" file from post #29 is damaged)

Hi. Can you edit bios for pro 7 that only shows logo.Thanks.

[giangtt]

Re: Microsoft Surface Pro 7 NEED BIOS. HELP!

i have a surface pro 7 touch not work, can you fix help me!

[fthgyj]

Re: Microsoft Surface Pro 7 NEED BIOS. HELP!

Hi
I have a surface pro 7 Bios locked, can you please help to remove the password?
Thanks

[peste]

Re: Microsoft Surface Pro 7 NEED BIOS. HELP!

Hi
I have a surface pro 7 Bios locked, can you please help to remove the password?
Thanks

the posted bios is corrupt ... what programmer are you using ??

[fthgyj]

Re: Microsoft Surface Pro 7 NEED BIOS. HELP!

the posted bios is corrupt ... what programmer are you using ??

I am using Universal Bios Backup Toolkit 2.0
Just tried again, hopefully it works

[AAAC]

Re: Microsoft Surface Pro 7 NEED BIOS. HELP!

@fthgyj
The utility "Universal Bios Backup Toolkit 2.0" only works in those models when the password can be recovered, the utility only READ bios region (a partial bios chip dump, missing: ME Region, Descriptor Region and other), from that bios reading/dump the password is recovered.
In your case what you need is a bios chip programmer to obtain a FULL bios chip backup, then this backup can be patched and programmed back to bios chip.

If we could just build a kind of (SHA256) "rainbow table" with password hashes, then it will be a matter of looking up for your hash in that table and we would recover the actual password.

[iaf86]

Re: Microsoft Surface Pro 7 NEED BIOS. HELP!

post the original bios, even if it is corrupt.

Hi Every one My surface pro 1866 shows windows logo on and off. i think bad bios can some one fix the old bios .

[iaf86]

Re: Microsoft Surface Pro 7 NEED BIOS. HELP!

Hi, My surface pro 1866 shows windows logo and turned off I reprogramed few bios available on internet but no luck . is it possible to fix my old bios backup?
I attached my old bios back up .
thank you

[nguyenmeo199422]

Re: MS Surface no touchscreen after cleaning ME Firmware **FIX**

hi.
i have a surface pro 7 bootloop in logo.
please help me fix this. thanks.

[peste]

Re: MS Surface no touchscreen after cleaning ME Firmware **FIX**

hi.
i have a surface pro 7 bootloop in logo.
please help me fix this. thanks.

try..

[nguyenmeo199422]

Re: MS Surface no touchscreen after cleaning ME Firmware **FIX**

try..

not working. thanks peste
it bootloop again

[Tjaytony]

Re: Microsoft Surface Pro 7 NEED BIOS. HELP!

Hi everyone.
I have a surface pro 7 with bios password. I have tried every single bios dump here but my surface pro will only show windows logo for 3 seconds and go off again. but the original locked bios boots fine. This is my backup below may be anyone could help remove paasword or do some kind of magic. thanks in advance.

[AAAC]

Re: Microsoft Surface Pro 7 NEED BIOS. HELP!

@Tjaytony
I've seen something similar before, it may be due to the SATA hard drive configuration in Setup/BIOS, it may be either "IDE Compatible mode", "AHCI mode" or other like "RAID mode" (have seen only the first two). So changing the SATA hdd mode may make a difference, but it's always better to work with the Original BIOS file.

Give a try to your Original patched BIOS file.

[Tjaytony]

Re: Microsoft Surface Pro 7 NEED BIOS. HELP!

Tnx I'll try it this noon.

[maraketh]

Re: Microsoft Surface Pro 7 NEED BIOS. HELP!

Hi. i have the same device. i flashed a working bios, but i have no touch firmware. can anyone help me remove the password from original file?

[AAAC]

Re: Microsoft Surface Pro 7 NEED BIOS. HELP!

@maraketh
Hi, this is your Original BIOS, patched to remove the password(s).