Let's try a force restart, if that doesn't take, then let's try backing up the phone, delete and restore to the backup. If the problem persists, put the phone into dfu mode, and restore to the backup. If the problem continues, then come back, and we'll try something else
Let's try a force restart, if that doesn't take, then let's try backing up the phone, delete and restore to the backup. If the problem persists, put the phone into dfu mode, and restore to the backup. If the problem continues, then come back, and we'll try something else
https://www.ifixit.com/Guide/How+to+force+restart+the+iPhone+7/6905
Plug your device into your computer with a USB cable.
Turn off the device.
Hold the Power button for 3 seconds.
Hold the Home and Power buttons for 10 seconds.
Release the Power button but keep holding the Home button.
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