Last week I setup VZ Protector. Since then my phone has been freezing during start up. It gets to the blue DRIOD screen and stays that way until it finally shuts down or I can get the reboot to work. (Down volume and power.)
I took the phone into a Verizon store for assistance and they didn't do (or know) anything more than I had already done!
I am EXTREMELY unhappy with this phone! (I was talked into this over the LG G3!)
Under Settings>Restore (or something to that affect) turn off Google data and app restore and try a factory reset again.
My phone is currently deleting text threads and is taking a decade so I can't look up what exactly it says.