I bought a S6 active from Best Buy, and I live in India, and AT&T sent me an unlock code.  Everything seems to work here except call waiting and call forwarding.  When I try to open phone settings I recive and error saying "Sim or network Error" I tried changing my sim and that did not work.  I trie

I'm hoping someone can help me with a problem I recently discovered on my device. I can't connect to the AT&T mobile network, so no 4g or bars, just a circle with a slash through it. I tried replacing the SIM card and that didn't work. I can connect to wifi and bluetooth, which I think should rule o

Samsung Galaxy SMG-G900A, Android Version 5.0.  Received software update recently, and now some apps will not connect to the network.  A game I use works fine, however Amazon Prime Music, Pandora and others like that will not connect. Removed all apps that I recently installed just in case, rebooted