Yesterday I left my service area, I had no service for about 4 hours. When I came back to my service area I still have no service. I factory reset my phone an everything. When I try to go to mobile network, it says insert sim card. The sim card is already in there. I have straight talk service an I'm afraid the new 4.3 update blocked my straight talk network on my unlocked s4 active. Can anyone help??
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