I have a LEF120..... serial Wii here, how can I know if this is an LU64+ equivalent. It is a new Wii from this year. /edit: I just installed cIOS249 rev9 and then installed rev13b. Games in USB loader work, but DVD's will not load. NeoGamma throws error 721 and SoftChip seems to use IOS36. Would it be safe to downgrade this Wii?