I just recently got the note 4 from the s4, I was really excited about my new phone but I'm having all kinds of problems. It seems to have lag even as I'm typing this the words are slow to show up on the phone, I get a pop up like every 5 minutes saying "unfortunately contacts has stopped" I have no idea why. My Google play store won't update or download unless I shut off my WiFi connection. It keeps saying that I have 2 cloud accounts and I should merge them. And when I linked my Google account my calender with all my appts didn't sync. I'm so frustrated with this phone!! I don't know if I should do a factory reset or return the damn thing and get something else. Someone please help me!?!?