I followed the menu from top to bottom, just like it said, but after I finished and connected the newly upgraded drive, the xbox gave an error 5 (HDD not locked) error code. I followed thorugh the entire thing, and selected the generate using motherboard to find the hdd key, eeprom and stuff, and then locked it. Then i did number 4, unlock slave drive, then number 5, disable security on slave drive. Then i unplugged the old xbox drive (it was a stock one) and connected up the new one. It booted, played the splash screen, then switched to an error 5 "your xbox needs servicing" screen. I went back, connected everything again like i was starting over, and selected "lock slave drive" but it still had no effect.
Any help on how to solve this would be greatly appreaciated.