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Android Beginner
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I just got my thunderbolt the other day and for the 1st few hours 4G was working great. However now I cant seem to stay on 4G for more then a couple minutes. It will connect and I get full bars and I can use it to go to websites however within a few minutes it switches to 3G. The only way I can get it back to 4G is to switch to 3G only and then back to normal and it will connect to 4G again but only for a few minutes. I know i'm in a good 4G area too. Any ideas what would cause this? I am rooted running CM7 with Imo kernel and MR2 radio

UPDATE: Problem solved. Stopped at verizon and swapped in a new sim card and 4G is back and working great!
 
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