No one can help me this the new test i did?
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Bios password removal on a Unowhy dump
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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
I have unsolder the W25Q256JV chip and get it on the T48, it was well reconnised.
As it is a unowhy computer, password seems "hide" in 2 places between “…AMITSESetup” and “.NVRAM…”
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
I tried to solder it... but computer doesn't start at all.... nothing...ERROR! FLASH Address:0x000000 Buf_Val:0x11 IC_Val:0x01
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!
Leave a comment:
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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 FilesPremium supporters get full download access and other benefits.
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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 adaptorLeave a comment:
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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:
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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?
thanksLeave a comment:
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Re: Bios password removal on a Unowhy dump
What model is your bios programmer, you`re not using a sop8 clip with it are you ?
.Leave a comment:
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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 helpLeave a comment:
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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!
thanksLeave a comment:
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Re: Bios password removal on a Unowhy dump
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:
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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?
thanksLeave a comment:
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Re: Bios password removal on a Unowhy dump
not good read ,or bad eeprom
the solution must be this
https://www.badcaps.net/forum/showpo...8&postcount=10Leave a comment:
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