Microsoft Surface Book (1703) password

[Motherboard Repairs]

Here is a bios dump i have tried to crack but no luck, if any one here can try.

[RethoricalCheese]

Re: Microsoft Surface Book 3 (1703)

Here you go.

[Motherboard Repairs]

Re: Microsoft Surface Book 3 (1703)

Here you go.

Hi

Thanks i am surprised only 1 byte of change made difference, it did some changes in bios setup but one issue i cant change UEFI Passwors it states above "Some settings are managed by your organization" in security tab.

you have any solution for this ?

[Motherboard Repairs]

Re: Microsoft Surface Book 3 (1703)

.

[rioreno]

Re: Microsoft Surface Book 3 (1703)

Here is a bios dump i have tried to crack but no luck, if any one here can try.

try this
and.. goodluck

[Motherboard Repairs]

Re: Microsoft Surface Book 3 (1703)

try this
and.. goodluck

Thanks a lot it worked and RethoricalCheese

[ajaybe]

Re: Microsoft Surface Book 3 (1703)

Surface 1703 is original surface book model .. why you are saying this is surface book 3?

can you please confirm?

[IVARSX]

Re: Microsoft Surface Book 3 (1703)

Here is a bios dump i have tried to crack but no luck, if any one here can try.

How you get bios dump?

[peste]

Re: Microsoft Surface Book 3 (1703)

How you get bios dump?

you will need an SPI programmer...

https://www.youtube.com/watch?v=DWWigscuQDY

[IVARSX]

Re: Microsoft Surface Book 3 (1703)

you will need an SPI programmer...

https://www.youtube.com/watch?v=DWWigscuQDY

That mean without opening laptop can't get bios dump from Surface Book?
And open laptop without damaged screen can't

[parezj]

Microsoft Surface Book 3 UEFI locked (AMITSESetup missing)

Hello.

I have completely locked 15" Microsoft Surface Book 3 (windows password, UEFI password + USB boot disabled). So I dissasembled it, desoldered Winbond W25R128JW NOR flash, read it with CH341 (with 1.8V converter) and now I am trying to find encrypted password (with UEFITool / HxD). But there is no patterns like this:

65 74 75 70 00 (AMITSESetup.)

01 4E 56 41 52 (.NVAR)

I am confused... Is there some kind of new protection mechanism?
Can you please give me some advice how to proceed?

Thanks!

[peste]

Re: Microsoft Surface Book 3 UEFI locked (AMITSESetup missing)

Hello.

I have completely locked 15" Microsoft Surface Book 3 (windows password, UEFI password + USB boot disabled). So I dissasembled it, desoldered Winbond W25R128JW NOR flash, read it with CH341 (with 1.8V converter) and now I am trying to find encrypted password (with UEFITool / HxD). But there is no patterns like this:

65 74 75 70 00 (AMITSESetup.)

01 4E 56 41 52 (.NVAR)

I am confused... Is there some kind of new protection mechanism?
Can you please give me some advice how to proceed?

Thanks!

probably the programmer read it with errors.. use these programs for CH341A...

https://www.badcaps.net/forum/showpo...6&postcount=10
https://www.badcaps.net/forum/showpo...04&postcount=7

[slaby6]

Surface book 1703 Bios password

Hi,
Have an Surface book 1703 with Bios password locked, is there any way to decrypt the pass instead of unlock it?

Bios dump :


Thanks

[aldopc]

Re: Surface book 1703 Bios password

Hi,
Have an Surface book 1703 with Bios password locked, is there any way to decrypt the pass instead of unlock it?

Bios dump :


Thanks

test and comment

[slaby6]

Re: Microsoft Surface Book 3 (1703) password

Bios lock is gone, but there is also an "SEMM" lock. I asume that from this surface model reading(decrypting) bios password is impossible?

[cmn.fix]

Re: Microsoft Surface Book 3 (1703) password

Hello guys! Need some help removing the bios password on this Surface Book 1 (1703). I have attached the old dump. By the way, did anyone have issues with sound and cameras not working due to a bios setting on this model? Thanks in advance!

[peste]

Re: Microsoft Surface Book 3 (1703) password

Hello guys! Need some help removing the bios password on this Surface Book 1 (1703). I have attached the old dump. By the way, did anyone have issues with sound and cameras not working due to a bios setting on this model? Thanks in advance!

try.

[cmn.fix]

Re: Microsoft Surface Book 3 (1703) password

try.

Worked like a charm. Multumesc!

[parezj]

Re: Microsoft Surface Book 3 UEFI locked (AMITSESetup missing)

probably the programmer read it with errors.. use these programs for CH341A...

https://www.badcaps.net/forum/showpo...6&postcount=10
https://www.badcaps.net/forum/showpo...04&postcount=7

Hi.

Yes, you are right. NV bios area is all FF. After some time I am pretty sure that it is because RPMC (Replay Protection Monotonic Counter). It is new NOR flash W25R128JW and if I understood it well, there is saved HMAC SHA-256 security key inside the NOR flash. Without knowing it, and without executing "Increment Monotonic Counter" instruction, the protected area cannot be accessed.

How can I read this stupid chip please W25R128JW?

[xtermixpl]

Can you unlock my bios?

[SMDFlea]

Maybe, if you post the required laptop serial number https://www.badcaps.net/forum/troubl...before-posting