This phone is a piece of crap. No phone should ever freeze up or lose calls and this phone freezes everyday. T-Mobil replaced my phone with another and the same problem. Now they replaced the Sim card and it still freezes up and I loose calls while talking. I'm going to AT@T! Donald M. Crow.
I have the same problem. the phone will be sitting on the table and decide to restart itself. sometimes I can't open messaging or phone without force closing the hog of a facebook bloatware. I wish I could delete that, but anytime I wanna share a pic, the phone sends me into it. a few times it was sucking over 60mbs of memory! I do think that is entirely the problem. there isn't close to enough ram to support all the crappy bloatware they preinstalled, so when we want to use apps we actually care for, there isn't enough room. smh