So I got a new ZTE Score M yesterday (I already had one but it broke) and it was working fine. This morning it was going slow so i rebooted it and when I did it said "Update needed. Update?" so I pressed yes and it was downloading and working fine until it said "Needs to reboot after update. Press to reboot." I pressed yes and it rebooted and it went to a screen with a little Android bot and an arrow coming out of a box and a loading bar. It's been on that screen for a while now, What do I do?