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connection problem invalid mmi code : Android Jiayu G2

D

darkingdoom

Lurker
Hello,
i inserted my 3g sim card into
GY-g2(Jiayu G2) phone , seraching for network and then gives me(( connection problem invalid mmi code)) the sim card un able to connect to the network because of that , so could any one tell me what to do ?
 
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