My iPhone 5S won't turn on and is unresponsive. My iPhone has recently been playing up where you have to hold the charger slightly to one side in order for it to charge. However, a few days ago it wouldn't charge at all, and the charging symbol isn't showing. Also, the home button broke a while back, I've still tried to hold the home and power buttons down although nothing happened. I also tried connecting it to the computer with a brand new lightning cable, but still the phone didn't respond, and iTunes didn't recognise that anything had been connected.