Alright people, it is about time somebody wrote a FAQ about this clouded subject. Remember, the more questions you guys ask the more answers will be posted in the faq!
1)Can I install my new 120 hard-drive with Smart Drive upgrade?
A: Yes, you can install any hard-drive up to 137gigs using Smart Drive upgrade, although you risk a chance of freezing in the middle of your transfer if you have lots of files in both drives
2) I used configmagic to unlock my hard-drive, can I still lock it using the lock/unlock option in disk tools?
A: Yes, being that your Hard-drive password is generated using calculations from information given from the eeprom, you will still be able to lock/unlock your hard-drive with the Xenium's Disk Tools.
3) Will I be able to copy files from a non-stock hard-drive to another non-stock hard-drive using Smart Upgrade?
A:Yes, you can transfer files between two non stock drives using Smart Drive upgrade, although it will definitely take a long time if the drives have a large amount of files in them.
4) Will I be able to play on xbox Live right after doing the Smart Drive upgrade?
A: No, you will have to lock your xbox hard-drive in order to connect to xbox live with the original bios.
Not all hard-drives are lockable, please refer to the hard-drive lockability list
in this forum here.5)Does Smart Drive Upgrade support lba48?
A: NO, you may not format a H.D. larger than 137 gigs! If you would like to format a 137gig+ H.D. You need a lba48 supported bios. Please refer to this
TUTORIAL for information on installing a larger h.d. drive.
This FAQ was created by the joined information of Tidusblitz111 and erexx.
More information will be added as more people ask questions.