Iphone 5 randomly going from boot screen to home screen
Hello,
My iphone 5, with current ios 8 software, was working fine until today when I pulled it out of my pocket to read a text, and it displayed the boot up screen. I've seen this before and figured that it would start soo. However, it held at this screen (white with an apple in the center) for over a minute, then went black for around 10 seconds, followed by the home screen for around 2-3 seconds. When the home screen is displayed it is unresponsive. This cycle has been continuing for around an hour and a half. I have tried the hard restart (holding the home and off button), plugging it in to the power source, and turning the device off. Nothing has worked.
PS, This is my fourth replacement phone, after three others had battery problems. I am not thrilled with the way apple's hardware/software has performed as of late.
PLEASE HELP
iPhone 5, iOS 8.3