My Xperia Z3 losing network signal for short time later connect back but signal is changing from 4G to H and again losing then full bar on H short time later no signal and so on....
My settings are settings > more > mobile networks > network mode > 4G(preferred)/WCDMA/GSM
I have another two options WCDMA only. And WCDMA(preferred)/gsm
But I have no idea what it is. And is it related.
Is my mobile is broken and need to send to service or it is something to change in settings.
Thank you for help.
