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.

For those without a magical 4 space password you can short G2 with a paperclip while booting up.