When booting into sprecovery and trying to perform a backup or restore, I get an error "cannot mount sd card". Sometimes it works, sometimes it won't. When I get the error, I also can't see the card on my pc while using usb. Sometimes a battery pull works, other times not. I am rooted. It will always boot the phone normally although sometimes hangs when "preparing sd card" Could this be a card problem, sprecovery problem, phone? Any thoughts? Just to clarify, I can always boot into sprecovery. I get the error when trying to perform a backup or restore.