ok im about to attempt this today. so ive got 2 locked drive's. i burnt the discs's with the eeprom for each xbox to disc with xboxhdm. 1 of the drives just needs unlocking as it will be used in my system that will be hard modded, the other needs locking to the new mobo. so if i put the first drive in that simply needs unlocking, with its respective eeprom disc, i can unlock the drive and thats the first bit over? then for the other that needs locking to the new mobo, do i unlock it with its eeprom disc, then shutdown and put in the new eeprom disc and lock it? just want to be perfectly clear. cheer's