iPhone 4 won't turn on
So, this morning when I checked my iPhone while it was charghing, it had a system message that went something like this: "iPhone can't receive phone calls. Connect to iTunes". I unplugged my iPhone from the wall and boom - it went off even though it had 100% battery left.
I tried normal boot and it showed Apple logo for two seconds and then it turned off. Then I pressed home and lock buttons for over 20 seconds while plugged in to Mac and nothing happened. After an hour, my iPhone turned normally on to the lock screen but then it went off, again. I tried recovery mode but still it does not turn on. iTunes don't recognize it either.
Should I take it to the Apple Store? Or is there some way to fix it?
iPhone 4, iOS 7.1.2
-Sheidz
iPhone 4, iOS 7.1.2