My advice would be to download a different file manager, find one that works, and report back so someone can possibly find a fix and other users don't have the same problem you're having. Or go back to v1. And as far as your comment on the rom needing more attention, idk man as far as I know this guy's doing roms for three different versions of this phone right now, and unless I misread I believe he's also working with others to get us cm builds. There's only so much attention to go around
Edit: or check out this thread in the at&t forum. Answers to the scanmedia problem plastered everywhere. Quickpic and poweramp see external sd
I remember when we didn't even have anything significant posted in the Canadian development forums. Grateful for all the work done, and being done. Glad developers picked up this phone. it really needed the attention. Glad good developers picked it up