Restore to iOS 9.2.1 or 9.3:
In the end the best solution is that you need to restore your iPhone and iPad to iOS 9.2.1 or 9.3. Follow the instructions below to restore your device.
Step1: Download the iOS 9.2 IPSW File for your specific iOS device.
Step2: Goto Settings>iCloud > Find My iPhone>Disable it.
Step3: Connect the iOS device.
Step4: Launch iTunes on the computer.
Step5:For Windows machine, hold down the ‘Shift’ key and click the Restore iPhone, and for Mac ‘Option/Alt’ and click on restore.
Step6: Select the iOS 9.2 IPSW where you stored.
All Done.
