I'm not sure why Sony support suggested that. As far as I know, current phones don't save contacts to the SIM card any more. If you save a contact to the Phone account, they get saved to a database file in a protected system directory on Internal Storage (not the SIM). There might be an option to export contacts to or import them from a SIM card, but I don't think a phone actually uses the SIM card to access stored contacts in real time.
If you'd like, I could move this thread to the XZ2 Compact forum for more specific traffic. Someone who frequents that subforum might have a better answer for you.
10-20-2018 08:19 PM