Hi, I have problems with signal. Specifically with LTE. I have strong signal,but when I switch off the display and after a few minutes I turn it on it is often offline! I tried switch it to 3g and everything seems fine. I think there is some problem with 7.1.2. Does anyone has this problem?
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Isn't this just the phone switching to 3g to handle the call? Something they all do when VoLTE is not available.