I looked around and didn't see anything in the forums, so here goes... I recently, got this phone from c-spire (U.S. Cellular, u believe is who owns them). I had a memory card that was in my old Motorola Milestone X that the guy put into the s4, no reformatting. The card worked fine, but then a few days ago my phone says the card is not mounted. I took it out, and will see if I can recover any data later on. I put in a new card, and most of the files that I thought were on on my old microsd are still there. Confused, I removed the msd completely. The files are still there. So, basically everything is saving to the phone's internal memory. Pictures, kindle books, audible, Facebook pictures, smazon MP3's, Browser downloads (from any browser, I downloaded a few from the Play store, to experiment with). I don't want EVERYTHING on my phone's internal memory. I looked in settings to see if I could find a solution, but I didn't find a way to change this. Am I missing something? I've been an android user for about 5 years, so I'm not new to android. This just has me baffled.