What To Do If Your Phone Will Not Charge. The easiest way to diagnose a faulty cable is to try a different one and see if that works properly with your device. Try performing the following steps if your phone does not turn on or power up.

Force Restart Your Samsung Galaxy. Perform a hard reset on your iPhone. Turn your phone off or restart.
Try performing the following steps if your phone does not turn on or power up.
The easiest way to diagnose a faulty cable is to try a different one and see if that works properly with your device. When the battery is completely discharged your device will not turn. First youll need to turn off your smartphone and remove the battery. Or when you are charging Android from computer try to connect the device to a wall charger or powerbank because it could be the USB port on the computer that is damaged.
