Microsoft Surface Pro 3 UEFI password

[RethoricalCheese]

Poito2014

[Greenf1re]

Originally Posted by RethoricalCheese

Poito2014

Thank you so much, it worked!

Would you mind telling me how you found the AMI XOR key?
This is the key you would use right? But how do you get it?

e93d920891a1edda8e752944bf7e999272e8dc1e95754e89c3bfa0e55a2b0350bc9665cc1ef1c83

And this is the hash right?

5000006f1a00690000742e006f00003200003000003100003400000000000000000000000000000

[roli1980]

hi everyone , new time member
i bought a surface laptop 3 , and same problem with uefi bios passsword

can anyone give me a walkthrough on how to remove or dump to post to you guys , and help is greatly appreciated
thanks

[RethoricalCheese]

Start the topic from beginning and use Google, everything (except the last part) is already explained here.

[roli1980]

it does not make much sense to me im afraid

im really am a noob , i did try from beginning but still didnt make sense on flash programme

[RethoricalCheese]

Oh yeah, the first problem you have is that you cant see the difference between Surface Pro 3 and Surface laptop 3

Cant help you, I have not looked into any surface laptop 3 bios files to know how to unlock them.

[roli1980]

ah ok , just thought bios may have been the same

if anyone can help with walkthrough on dump , may help more people if needed

[RethoricalCheese]

One is released @ 2014, other @ 2019.

Making a dump can be found at youtube. You need SPI programmer.
Hard part is modifying the file.

[sorkan]

Hi everyone, I have the same problem. I bought a Surface Pro 3 in Wallapop and the man who belonged it doesn't remember the administrator password of the bios. I've tried everything but nothing works...

Can you help me?

Thanks in advance!

[CraterM]

Originally Posted by sorkan

Hi everyone, I have the same problem. I bought a Surface Pro 3 in Wallapop and the man who belonged it doesn't remember the administrator password of the bios. I've tried everything but nothing works...

Can you help me?

Thanks in advance!

Try:
osadm

[sorkan]

It works! Thank you so much CraterM, you're a Master!!

[calir]

Originally Posted by RethoricalCheese

One is released @ 2014, other @ 2019.

Making a dump can be found at youtube. You need SPI programmer.
Hard part is modifying the file.

Are you able to find the password for Surface Pro 4 bios dumps? I'm in need as well.

[RethoricalCheese]

No, that needs bios modifying (screen removal).

[calir]

Originally Posted by RethoricalCheese

No, that needs bios modifying (screen removal).

Thanks. From what I've gathered, can you confirm if these are the right steps?

1. Remove bios chip
2. Flash clean bios to chip with programmer

[RethoricalCheese]

Uh, no. Remove, read, upload, you will get modified file from me and then you write that.

[5chematic]

I get the following error:

Error 201: [FPTw.exe] cannot be run on the current platform.
Please contact your vendor.

[5chematic]

Originally Posted by KingBonecrusher

Thank you, v9.5r6 was working for me. Password decrypted and Surface is unlocked...

fptw64.exe -BIOS -D my-backup.bin

Can I ask how did you did it? how did you managed to do it? I cannot even dump the image. how can I decrypt and get the password from the bin file? if this the same tool? thanks

[RethoricalCheese]

Did you use windows installer to run fptw? If so, did you use fptw which is located in win64 folder (or whatever your windows installation disk happens to be)?

[5chematic]

Originally Posted by RethoricalCheese

Did you use windows installer to run fptw? If so, did you use fptw which is located in win64 folder (or whatever your windows installation disk happens to be)?

No, I did not. what I did is ran the tool on the surface with the locked bios since at leats I had access all the way to the desktop. on the other hand, when you mentioned that there will be no need to remove the screen. what did you meant by that? what about the Surface with BitLocker and when there is no way to not even start the Surface is DOS?

[RethoricalCheese]

Nah, not DOS. Windows install media is the best for surfaces.

Attach install media. Click on restart while holding down shift. This will take you to Windows recovery. Usually you can boot to USB from there. When you boot up to installer, choose language etc and on the next screen do alt+r. Navigate to command prompt from there. Use the correct folder. Win64 I guess.