Microsoft Surface Pro 3 UEFI password

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  • Vesko356
    replied
    Re: Microsoft Surface Pro 3 UEFI password

    Originally posted by rozpytin
    Help retrieve the BIOS password
    Password: loomb

    Leave a comment:


  • rozpytin
    replied
    Re: Microsoft Surface Pro 3 UEFI password

    Help retrieve the BIOS password
    Attached Files

    Leave a comment:


  • Vesko356
    replied
    Re: Microsoft Surface UEFI password

    Originally posted by Beefychris
    let's try again
    You have a Microsoft Surface Go 1824 right?
    Originally posted by Vesko356
    This method is not applicable for Microsoft Surface Go 1824.
    https://www.badcaps.net/forum/showpo...&postcount=224

    Leave a comment:


  • Beefychris
    replied
    Re: Microsoft Surface UEFI password

    Originally posted by Beefychris
    So I'm hoping I've done this correctly as Ive spent days learning how to hopefully get the right file.

    Not sure I've spent this much energy on getting a password I Forgot in my life.
    let's try again
    Attached Files
    Last edited by Beefychris; 02-26-2023, 03:43 PM. Reason: attachment missing

    Leave a comment:


  • Vesko356
    replied
    Re: Microsoft Surface UEFI password

    Originally posted by Beefychris
    So I'm hoping I've done this correctly...
    244 Bytes... No, it's not a good dump.
    Try again

    Leave a comment:


  • Beefychris
    replied
    Re: Microsoft Surface UEFI password

    Originally posted by RethoricalCheese
    You can try going to recovery options by holding down shift when pressing restart. There you can open command prompt and navigate to fptw folder and try from there.

    And BTW, use v9. 5 not v9
    So I'm hoping I've done this correctly as Ive spent days learning how to hopefully get the right file.

    Not sure I've spent this much energy on getting a password I Forgot in my life.
    Attached Files

    Leave a comment:


  • AAAC
    replied
    Re: Microsoft Surface Pro 3 UEFI password

    @LarryFlynt
    If you check the 'AMITSESetup' variable it uses 40+40 bytes for password storage, one of these 40-byte blocks is for the USER password and the other block for the SUPERVISOR password, if you see one of these blocks filled with just 00's is because the corresponding password is not set.

    Leave a comment:


  • LarryFlynt
    replied
    Re: Microsoft Surface Pro 3 UEFI password

    I could have sworn that somewhere in this message thread I saw an image that highlighted the code immediately after 'AMITSESetup', and on mine, everything right after it was 00's. In searching back through now, I see that the image showed it was the data after the 00's that was what I should have been using. If I take the data after that, which is exactly what you quoted AAAC, popping that into the spreadsheet immediately spat back that cursed '1234'!!!

    AAAC, I bow to your magic Thank you again!!!

    Leave a comment:


  • LarryFlynt
    replied
    Re: Microsoft Surface Pro 3 UEFI password

    Originally posted by AAAC
    @LarryFlynt
    When using UEFITool NE and other Hex tools you have the option of doing a string search in ASCII or UNICODE (8-bit vs. 16-bit representation, respectively), with UEFITool NE the option UNICODE is checked so you just untick the option and you are ready to find AMITSESetup variable for this BIOS (in other BIOSES you may require the Unicode option to be ticked).

    Password XORED in AMITSESetup variable =
    6A93842622BA584DC7E022747D07D89A332E8EC1E95444E89F7BFA0E55A2B0350BC9665CC1EF1C83

    password = 1234
    Oh FFS... I definitely don't remember setting it to that! There are a few passwords I reserve for BIOS stuff, and that's definitely not one of them! Thanks so much for this AAAC! I will poke back into the .bin file to find that data, and figure out where I was going wrong.

    Leave a comment:


  • AAAC
    replied
    Re: Microsoft Surface Pro 3 UEFI password

    @LarryFlynt
    When using UEFITool NE and other Hex tools you have the option of doing a string search in ASCII or UNICODE (8-bit vs. 16-bit representation, respectively), with UEFITool NE the option UNICODE is checked so you just untick the option and you are ready to find AMITSESetup variable for this BIOS (in other BIOSES you may require the Unicode option to be ticked).

    Password XORED in AMITSESetup variable =
    6A93842622BA584DC7E022747D07D89A332E8EC1E95444E89F7BFA0E55A2B0350BC9665CC1EF1C83

    password = 1234

    Leave a comment:


  • LarryFlynt
    replied
    Re: Microsoft Surface Pro 3 UEFI password

    Originally posted by AAAC
    @LarryFlynt
    When using UEFITool NE version, while searching for "AMITSESetup" it will give the results, clicking on any of them will take you to the UEFI variable or module where it finds a match, when working with UEFI variables it may show the DATA or show a LINK to it (Subtype column), if the variable is shown as a LINK, right click on it and select option GO TO DATA (CTRL+T).
    Yeah, didn't have much luck there. While I could see some GUID data, it didn't appear to be enough characters for the spreadsheet to decrypt. I think I'm just going to post my BIOS dump here, and profusely thank whoever manages the magic, since they're obviously a much better wizard than I I'll still keep trying though, since I hate not being able to figure stuff like this out Thanks for your help AAAC!

    L.F
    Attached Files

    Leave a comment:


  • AAAC
    replied
    Re: Microsoft Surface Pro 3 UEFI password

    @LarryFlynt
    When using UEFITool NE version, while searching for "AMITSESetup" it will give the results, clicking on any of them will take you to the UEFI variable or module where it finds a match, when working with UEFI variables it may show the DATA or show a LINK to it (Subtype column), if the variable is shown as a LINK, right click on it and select option GO TO DATA (CTRL+T).

    Leave a comment:


  • LarryFlynt
    replied
    Re: Microsoft Surface Pro 3 UEFI password

    Originally posted by AAAC
    @LarryFlynt
    I suggest to look for the next "AMITSESetup" match (usually by pressing F3 key). Other option is to use UEFITool NE version.
    I did that. There were three locations with "AMITSESetup", all three were full of 00's. I will have a look at that tool you suggested when I get home from work tonight.

    Leave a comment:


  • AAAC
    replied
    Re: Microsoft Surface Pro 3 UEFI password

    @LarryFlynt
    I suggest to look for the next "AMITSESetup" match (usually by pressing F3 key). Other option is to use UEFITool NE version.

    Leave a comment:


  • LarryFlynt
    replied
    Re: Microsoft Surface Pro 3 UEFI password

    Hi folks,

    I have a Surface Pro 3 that I can (kinda) get into the BIOS, but most of the options are greyed out. So I'm guessing that I put a password on it at some point (bought the thing used off eBay a number of years ago), but I'll be damned if I can remember what it is now. I used the fptw64.exe tool to extract the BIOS to a .bin file, but when I open the file in HXD, the location for the data I'm looking for (after "AMITSESetup") is filled with 00's. I have tried a few times, same results each time. Any ideas?

    Leave a comment:


  • gjohny
    replied
    Re: Microsoft Surface Pro 3 UEFI password

    Originally posted by gjohny
    i got Rhonda2021 but it says Invalid Password... tried multiple times?
    ah got it.

    123456789

    sweet. awesome thread thank you all

    Leave a comment:


  • gjohny
    replied
    Re: Microsoft Surface Pro 3 UEFI password

    Originally posted by gjohny
    very helpful thread! can someone decrypt this password for me?
    i got Rhonda2021 but it says Invalid Password... tried multiple times?

    Leave a comment:


  • gjohny
    replied
    Re: Microsoft Surface Pro 3 UEFI password

    very helpful thread! can someone decrypt this password for me?
    Last edited by SMDFlea; 03-25-2023, 06:14 AM.

    Leave a comment:


  • iRiparo Malaga
    replied
    Re: Microsoft Surface Pro 3 UEFI password

    Hi bodies,

    Anyone now if those methods are valid to MS Surface Laptop 2?

    Thanks in advance

    Leave a comment:


  • AAAC
    replied
    Re: Microsoft Surface Pro 3 UEFI password

    @farbom008
    You can’t find variable because you have a MS Surface Book 3 and not a MS Surface Pro 3.
    Most likely you will need a BIOS chip programmer.

    Leave a comment:

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