I'm on Android 4.3, the version Samsung supplies. I do have a downloaded update that refuses to install. Lately, my phone seems to insist on putting EVERYTHING on the 16gb internal storage, with very little going to the 32gb SD card. I'm now out of space in internal storage and can't make enough sense of the way this version of Android handles storage to figure out how to convince the phone to move things to where I think they should go. Suggestions? I really don't have time this week to do a re-ROM, but can't update apps at this point. I'd also really rather not delete my music or ebooks.