My Z2 rings while it is in silent mood

[Dolly_Z2]

Why My xperia z2 rings at silent mood, it suppose just ring for exception calls only,and i try all settings i can do for it please help me and at past it was really silent at sndoroid 5.0 at priority mood but now after new update andoroid 5.1

[Thommo]

I often find that after an update bugs arise which can be fixed with a system repair so i would advise that you do that - see below for a guide

Performing a system repair using PC Companion will often fix issues - This will factory reset your phone and erase all data so best to backup before you begin

Switch off your phone and unplug from Pc (Hold volume up and power for around 10 seconds)
Start PC Companion and select Support zone then Update my phone/tablet then in Blue Repair my phone/tablet and follow the on screen instructions - When prompted connect your phone still switched off holding volume down or back button - This should start the repair or reformat process

If you are using Windows 8/8.1 or a 64bit operating system then adjust the settings for PC Companion and run in compatibility mode and chose Windows 7 or XP

[Dolly_Z2]

I will try that, and give you feedback