I have an AT&T GS4. Love the phone but can't use the GPS function. Whenever I plug in an address, I get the endless "Searching for GPS" at the bottom of the screen. It will not go into turn by turn direction mode and seems to be not connecting to satellites. This happens in both Google Maps and Waze. I have no idea what I've done. It's been this way for about 10 days or so. I called AT&T and they wanted to reset my phone by re-registering it.....? I have powered the phone down, restarted it, taken out the battery. Next step is to reset it and restore with Kies. Anyway, I have no idea what to do and I'm about to ask AT&T to send me a new one. Any ideas guys? Thanks a lot.