Excuse me if this been covered, i didn't find a clear answer to this yet. I have a LU4016XXXX serial. This wii was bought just before christmas so it's most probably a d3-2 board. If i want to use a device like drivekey to boot from DVDs or Flatmii from pc, would i ahev to replace just the drive board to a d2c or do i have to change the whole drive? Also if i should go with soft mod, can i downgrade to 4.1 according to my serial? I'm on 4.2 and i heard some newer Wiis will brick if you try to downgrade them after reaching 4.2. Thank you in advance for the clarifications.