I just bought z5p dual SIM, but I only use 1 SIM, and I have a problem, I can't call or receive call, it won't even ring or show miss call, and when I call other people, it automatically cut off immediately after I call, The people won't receive that call either. Other than call & receive call, everything worked normal, I can use that SIM card to SMS & go internet, just can't call. But when I put that SIM card on other phone, it can call. It definitely the phone's problem but I donno whats wrong. I tried to go thru the SIM card & call setting on the phone, some settings like 'call barring' & 'additional settings' , when I click those settings it shows an error "Network or SIM card error". Did anyone know how to fix this? Thx.

This post has been edited by cheebc: Jul 11 2016, 11:27 PM

I feel regret for upgrading to 7.0 on my z5 premium, so much problem, app compatibility is a big problem, keep getting "xxx app has stopped" popup, and the system is very unstable, sometimes even "Xperia Home has stopped" WTF?