The other time, I posted about Apple's newly discovered bug, that bricks their devices and render them uselessRead here=> http://afriwap.com/ios/see-why-you-should-never-change-your-iphones-date-to-111970/
Now i will be showing you how to fix your IPhone if it has been destroyed by this bug.Follow the instructions below
Connect your device to your computer with a USB cable.
Press and hold both the Sleep/Wake and Home buttons until you see a Connect to iTunes screen on your device.
Open iTunes and select your device.
When you see the option in iTunes to Restore or Update, click Update. Then wait while iTunes reinstalls iOS and restores your device without erasing your data.
When your device starts, tap Settings > General > Date & Time. Make sure that Set Automatically is turned on.