when I am at home and connected to wifi I can only receive SMS and calls intermittently. To resolve this I have to change from 3/4G to 2G then I can receive and send SMS and calls without problem. But then when I go out have to reset my phone to use 3/4G to do the same and use the Internet. It's snooping, to have such a modern phone and having to manually change settings. I've ha star phone since October and the problem only became apparent in December, so I don't know what had changed. I've tried various resets, including a complete factory reset, and it will work for a short while, then the problem comes back. O2 guru couldn't really help, any suggestions?
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