Hey that sounds a lot like a few consoles I've had. The asses at the help desk just tell you to bad and tell you to send it in. The closest I've come to an answer on what was wrong was that the drive was messed up which is less then helpful. Also did you install any custom ISOs right before? If you did uninstall them with anytitledeleter because they might be corrupted. Good Luck.

 

I had to format my wii because i was sending it to nintendo. but instead i bought a flatmii to replace my drive. once i get it and ill try reinstalling everything.