Renew your iPhone with Recovery mode
If you’ve tried and true all the previous suggestions otherwise you couldn’t try them or all of them as a result of your iPhone is so tousled, you’ll attempt one last thing: Recovery mode. Here’s however it works:
Disconnect the USB cable from your iPhone, however, leave the opposite finish of the cable connected to the USB port on your laptop.
Turn off the iPhone by pressing and holding the sleep/wake button for a number of seconds till the red slider seen on-screen. So slide the slider.
Wait for the iPhone to show off.
Press and hold the mouse button whereas you reconnect the USB cable to your iPhone.
When you reconnect the USB cable, your iPhone ought to power on.
Continue holding the mouse button till you see the connection with the iTunes screen, so unleash the house button.
If you don’t see the connection with iTunes screen on renew your iPhone, attempt once more from Step one.
If iTunes didn’t open mechanically yet, launch it currently.
You should see a Recovery Mode alert on your video display telling you that your iPhone is in recovery mode which you want to restore it before it will be used with iTunes.
Use iTunes to revive the device.