Hello. Lost connection on the phone Sony xperia x performance dual sim, only rebooting helps. Switching communication from lte to gsm does not help, anyway after some time he writes: There is no connection, there is no SIM card. Various communication operators have been tested, both SIM card slots have been tested. The problem arose from the time of purchase of the phone, under the guarantee I handed over 3 times, no defects were found, the problem remained.
