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22nd June 2014, 02:56 PM |#1  
OP Junior Member
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Hello people. The time was using a SIM chip in my S3 but it only worked the data network and no phone calls. It displays the H + icon and access the internet without problems, but does not do phone calls, appear Mobile network not available.
So I changed my carrier and everything started to work until yesterday the same problem happened again. The IMEI number is correct.

Could someone help me? Grateful.