Bios password removal on a Unowhy dump

[Buzzfuzz2k]

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

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!

[Buzzfuzz2k]

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

Thanks