Probao sam napraviti navedeno. Sve je prošlo bez problema, novi eeprom upisan, kartica se nije bunila. Nakon toga sam ponovno pročitao eeprom i vidio da je stvarno novi eeprom unutra.
No nakon restarta PC-a sve se vratilo na staro!
Bojim se da bi moglo biti kao i ovdje:
"Intel 6000 and 1000 series often do not have eeprom. Instead they use OTM (One-Time Programmable) memory. So, the only option for such cards is soldering external eeprom. External eeprom must be pre-programmed before soldering because the card checks it's signature and if it fails the card tries to use OTP again."
And if you write OTP it just writes data to card RAM, which is erased after power off.