ipad retina keeps rebooting
Just updated my ipad retina, 16 gb, wifi to the latest iOS9. My ipad had been sitting for approx 2 months not used, because I had been having rebooting issues. I updated it and it worked fine for about 20 minutes. It started rebooting again. It reboots to the startup screen. How can you tell if its a software or hardware problem? The internet has quite a few people with this problem. Has Apple looked into it or is this another instance of planned obsolescence.
iPad, iOS 8, 16 Gb, WiFi, Model #MD510LL/A