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Bios password removal on a Unowhy dump

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  • Buzzfuzz2k
    replied
    No one can help me this the new test i did?

    Thanks

    Leave a comment:


  • Buzzfuzz2k
    replied
    Hello Guys,

    I'm still having some troubles to remove a password on a bios chip. I have bought a new T48 (TL866II plus) because my batronix programmer didn't get it well...

    Computer information:
    Unowhy computer (NOT laptop)
    UYM6524702229
    SN: UYM6524702229
    Art: T309475
    I also get a UYM184E70E15

    Click image for larger versionName:	IMG_20231108_183557.jpgViews:	15Size:	206.7 KBID:	3180448
    Click image for larger versionName:	IMG_20231114_205141.jpgViews:	15Size:	1.08 MBID:	3180449
    Click image for larger versionName:	IMG_20231114_205130.jpgViews:	15Size:	1,000.9 KBID:	3180450

    I have unsolder the W25Q256JV chip and get it on the T48, it was well reconnised.

    Click image for larger version  Name:	CM231113-193434002.jpg Views:	15 Size:	213.2 KB ID:	3180451

    As it is a unowhy computer, password seems "hide" in 2 places between “…AMITSESetup” and “.NVRAM…”
    Click image for larger version  Name:	HxD_hcSyPrM4x4.gif Views:	67 Size:	132.8 KB ID:	3180447




    But I can't get it to work... here are my tests....


    1-- If i select W25Q256JV@WSON8 on T48 program, It's reading, i get a dump, with 2 places where the password "should" be stored. Here is the original dump attached W25Q256JV@WSON8.origin.BIN. I have made the modifications, save the new dump (also attached) W25Q256JV@WSON8.mod.BIN.
    I burn the chip but i had burning problem, it seems it does burn properly and i get this error when checking flash
    ERROR! FLASH Address:0x000000 Buf_Val:0x11 IC_Val:0x01
    I tried to solder it... but computer doesn't start at all.... nothing...

    2-- As i have 3 computers, i tryed another chip from a booting computer, and choose W25Q256JV(OTP)@WSON8. The OTP version seems to work, No error on reading or flashing (but it's longer time).
    i get the W25Q256JV(OTP)@WSON8.original.BIN file (attached) and when i try to remove the password parts, I only find ONE place to modify (instead of 2?).
    I then burn it, solder it and computer boot up normally... but password is still there...

    Any ideas?

    Also, when i program the chip, i have an option "OTP Secu R" not activate... does it could help?

    Many thanks for your help!

    Last edited by Vesko356; 01-22-2024, 09:25 AM. Reason: Scaled images

    Leave a comment:


  • Buzzfuzz2k
    replied
    any ideas? I'm quite stuck

    thanks

    Leave a comment:


  • Buzzfuzz2k
    replied
    Re: Bios password removal on a Unowhy dump

    Thanks for the help!

    My adapter is a chinese one, i could find a better one at a decent price.
    I have tested the pins, All 8 seems ok.

    I'll try to find a better one, but i'm not sure it will be better.

    Do you have another software to propose to see if i have better luck download and burn this chip with my batronix?

    Also, do you have a software that could help me crack the password from the dump?

    Many thanks !
    Attached Files

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    Leave a comment:


  • SMDFlea
    replied
    Re: Bios password removal on a Unowhy dump

    Originally posted by stj
    the problem is going to be poor connection because your putting what looks like an soic package into a chinese (xgecu?) WSON adaptor
    The chip is WSON

    .

    Leave a comment:


  • stj
    replied
    Re: Bios password removal on a Unowhy dump

    the problem is going to be poor connection because your putting what looks like an soic package into a chinese (xgecu?) WSON adaptor

    Leave a comment:


  • SMDFlea
    replied
    Re: Bios password removal on a Unowhy dump

    Could be the adapter thats the problem,the batronix ones are QFN to DIP8 but what are the extra pins for ,just for support ?

    https://www.batronix.com/shop/adapter/wson-adapter.html
    https://www.batronix.com/images/gene...-White-min.jpg

    .
    Last edited by SMDFlea; 11-16-2023, 02:44 AM.

    Leave a comment:


  • Buzzfuzz2k
    replied
    Re: Bios password removal on a Unowhy dump

    I managed to read the chip ... Programmer reconized the chip as

    W25Q256 FV
    W25Q256 JW
    W25Q256 JV

    It's written on the chip "JV" but when i read, file is empty. If i select "FV" or " JW" i get the same file, the good one.

    I have modified it but when i try tu burn again the chip, i have an error with all the 3 chips selection

    error is "Time uor error at adress 0/0h" when sotware is trying to erase the chip...

    May be i should try with another software? What do you propose as software to read and write the chip?

    thanks

    Leave a comment:


  • Buzzfuzz2k
    replied
    Re: Bios password removal on a Unowhy dump

    It's my barlino 2 bx32p
    Attached Files

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    Leave a comment:


  • SMDFlea
    replied
    Re: Bios password removal on a Unowhy dump

    Originally posted by Buzzfuzz2k
    Some news...
    I managed to read the eeprom. Reader recognise well the chip, read it but I only have an empty file.... I did 3 tries, same empty file ...
    Are you sure it's the good chip?
    Thanks for the help
    What model is your bios programmer, you`re not using a sop8 clip with it are you ?
    .

    Leave a comment:


  • Buzzfuzz2k
    replied
    Re: Bios password removal on a Unowhy dump

    Here are often better pictures
    Attached Files

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    Leave a comment:


  • Buzzfuzz2k
    replied
    Re: Bios password removal on a Unowhy dump

    Some news...
    I managed to read the eeprom. Reader recognise well the chip, read it but I only have an empty file.... I did 3 tries, same empty file ...

    Are you sure it's the good chip?

    Thanks for the help

    Leave a comment:


  • Buzzfuzz2k
    replied
    Re: Bios password removal on a Unowhy dump

    man... i'm impressed ! you find this so quick with just a simple picture!
    I have unsolder the chip, i now have to find how to use it in my reader...

    I'll be back if needed!

    thanks

    Leave a comment:


  • volinakis
    replied
    Re: Bios password removal on a Unowhy dump

    Originally posted by Buzzfuzz2k
    of course, here are some
    Your bios chipset is marked with red square, dump that chipset.
    Attached Files

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    Leave a comment:


  • Buzzfuzz2k
    replied
    Re: Bios password removal on a Unowhy dump

    of course, here are some
    Attached Files

    Premium supporters get full download access and other benefits.

    Leave a comment:


  • SMDFlea
    replied
    Re: Bios password removal on a Unowhy dump

    Originally posted by Buzzfuzz2k
    Hi,
    Thanks for the answer, but the post is about the laptop, my computer is not laptop, so i'm not sure if it's applicable.
    Can you post some pictures of this laptop/PC/tablet or whatever it is .

    Leave a comment:


  • Buzzfuzz2k
    replied
    Re: Bios password removal on a Unowhy dump

    Sorry, I gave the serial number not the model

    this is what i got:

    SN: UYM6524702229
    Art: T309475

    I also get a UYM184E70E15

    please find attached the sticker on it
    Attached Files

    Premium supporters get full download access and other benefits.

    Leave a comment:


  • SMDFlea
    replied
    Re: Bios password removal on a Unowhy dump

    Originally posted by Buzzfuzz2k
    Hi,
    Thanks for the answer, but the post is about the laptop, my computer is not laptop, so i'm not sure if it's applicable.
    RULES UPDATE for BIOS requests/offers *AVOID BANNING, READ BEFORE POSTING*
    https://www.badcaps.net/forum/showthread.php?t=103569

    Provide the full machine model number, serial number (or Service tag, SNID) and the board model number (see https://www.badcaps.net/forum/showthread.php?t=88758 )

    .

    Leave a comment:


  • Buzzfuzz2k
    replied
    Re: Bios password removal on a Unowhy dump

    Hi,
    Thanks for the answer, but the post is about the laptop, my computer is not laptop, so i'm not sure if it's applicable.

    I did 4 reads, and i got all the same file, so read is ok, but maybe eeprom is not...

    do you confirm that i should get the same dump from windows software and eprom reader?

    thanks

    Leave a comment:


  • Maxpower3
    replied
    Re: Bios password removal on a Unowhy dump

    Originally posted by Buzzfuzz2k
    attached dump got with desoldering
    not good read ,or bad eeprom
    the solution must be this

    https://www.badcaps.net/forum/showpo...8&postcount=10

    Leave a comment:

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