I had a z1 for around a year with no problems at all untill i broke the screen. I upgraded to a z2 but straight away had poor signal, at least 2 bars lower than the z1 and alot of the time no signal just the red cross.
Recieved a replacement z2 as i was told it was a faulty handset but this is the same, I have seen some other people bringing this up but no one solving it.
I am going to try and swap for a z3 and see if that is any better or ill be looking at a htc or samsung i think.
