I've received more information on this and in Android 6, it's no longer possible to set ringtone to your second SIM card. This is a limitation on platform level from our platform supplier and this feature will not be available on our products on Android 6.
Same issue after upgrading to Android 6.0...different ringtone for each SIM should be basic feature of dual SIM phone...more so Z5 being Sony's most premium phone...my previous LG G4 maintains this feature even after upgrade to Android 6...please restore this critical feature (especially for a dual SIM phone) in next software update. Thanks.
Called and wrote to their support center...they said "will forward to the relevant department to add back the feature." I think more of us need to call and write to their support center to accelerate their resolution timeline, which I hope most of us have already done so.
I have the same problem, only one ringtone for both sim cards. No option to select Sim1 or Sim2 to select ringtones. Very annoying. Sony, please fix quickly.
This option no longer available post update to Android 6.0...it's an unacceptable omission or oversight on the part of Sony...such feature is a must for any dual SIM phone...you need to call or write to Sony to express your annoyance and ask for immediate restoration of this feature for Android 6.0...
