Original phone and first refurb were Amoled, this one was not; so no common ground there. Tried 2 batteries; so it was not 'hot' batteries. No SD card inserted and no apps installed; so it is not a memory problem. Drove to Verizon store so they could witness it; and got phone #2 reactivated since #3 was not up to the task. So in 3 days I get to see if #4 is any better. As much as I love this phone (when it is working), I am ready for a dual core LTE phone that kicks butt so I can upgrade and reduce my frustration level.