For mine I had to reseat my sim card. I opened the case to see if it would do the same thing with no sim card. I pushed my sim card back a little and removed the sticker on top that was coming off. I expected it to say no sim card when I turned it on but to my surprise it said service. Finally, the problem was over. I dont know if it was pushing to sim card back or taking off the sticker (maybe it was snagging something) that worked. But between the two. It worked.