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Edited by Formula1 at 2017-12-17 19:46 \n\ni'm in italy , my carrier is H3G (3 Italia) i tried the sim in other phones and it works fine, the 3G strength is excellent and i tried other sim cards in my phone they have the same problem as mine no phone calls only 4G connection. before the issue began during a phone calll i could see the 4G change into 3G, now it just stay in 4G with the signal strength going from full to 0.Also when i change the connection manualy to 3G or 2G i get no signal at all.
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