I locked a WD 250GB HDD w/ XHDM 1.9. Now I get Error 6. The HDD is recognized in BIOS, not by XBHDM 1.9. Now I can't Unlock. I do have eeprom.bin.
either connect it to another computer and run hdm again. or connect your harddrive (ide cable!!!) only after you get the first screen (where you have option 1 -4) the master password is XBOXSCENE or use your eeprom to unlock. your computer bios might have problems to see a 'locked' harddrive. or run atapwd.exe, with that you can also unlock your harddrive again. there are more programs around with which you can unlock your hd