Sony XZ Poor Signal Strength / Reception.

[Barton]

Just received my new Sony XZ, and my first call hung up twice due to poor signal strength. Switched back to my older Z3+, worked perfectly, call completed no problems. Even my M2 worked better.

Consistently no bars or 1 bar on 4G network setting. Switch to 2G then you may get 3 bars.

What is going on?

[nesligun]

I have same problem with my Phone, too. I generally use 4G settings and there is mostly just one bar, sometimes none. It is really annoying. I wonder how I can fix this problem. I tried software repair, it didn't work. 

[fercrego]

It happens the same to me since last system update