QUOTE(Heimdall @ May 13 2012, 02:34 PM)
.... you unlock using the old eeprom then relock using the new eeprom.
It's far easier to do that on your PC using xboxhdm. xboxhdm 2.2 is the version to go for, because it boots from USB, and you don't need a separate CD for the old and new Xboxes, you just copy the two eeproms to the USB stick at the appropriate time.
Which bit of that don't you understand.....?