Random re-springs ever since 8.3
Ever since upgrading to 8.3 (and now 8.4) my 6 has been randomly re-springing for no specific reason. Anyone know what the main cause of a "respring" is? This is different from a complete crash/reboot. My screen goes blank for a split second, I see the Apple logo briefly, then i'm back at my lock screen. Whereas a complete crash and restart would take much longer. I've received mixed responses on this. Some say it's firmware related and others say it's hardware.
iPhone 6, iOS 8.3