Revive your unresponsive iPhone by forcing it to restart. Additionally, you can try charging the phone or reinstalling iOS.

You can't turn off the proximity sensor on your iPhone, but if it's malfunctioning, try force-restarting your iPhone and ...

Before you blame your carrier or start shopping for a new phone, you should know that you can usually get a stronger signal with a few ridiculously simple tricks. We're talking about things that take ...