Got mine this afternoon but have been running around all day and have been unable to activate it. However, upon removing it from its box, I noticed a problem--the top rear cover keeps popping off in one corner. I noticed it was popped open very slightly, so I snapped it shut, thinking nothing of it. Well, it immediately popped back open. I snapped it shut; it popped back open. I took the whole cover off, reattached it, and the dang thing popped back open. I can't tell if it's a defective cover that's not seating well, or if the phone itself has a physical defect preventing a cover from seating properly. Either way, I'm going to a Sprint corporate store tomorrow to see if they can help.