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Already did the clear data of the app & also force stop but still no option for me to see my sim contacts. Help!
What if you choose local contacts?
Can you check if the same occurs in safe mode?
/t5/FAQ/How-to-boot-your-phone-into-safe-mode/m-p/348008#U348008
Strange,maybe you can try to backup your contacts and clear data for contacts storage (this will delete the contacts).
What if you reinstall lollipop and check again
Bridge (for Mac)
Alternatives on How to backup Xperias
http://talk.sonymobile.com/thread/36355