I've recently upgraded to the Galaxy S5 and I regularly seem to have poor mobile reception. I occasionally get 3 to 4 bars but more often than not get just 1 or none and get missed call text messages. As I'm typing I'm getting -113dBm 0asu. If I switch from lte/wcdm/gsm to just wcdm/gsm my reception greatly increases. Does anybody else experience this? Any advice would be much appreciated.