Fix calendar sync on Android
It occurred when I disabled stock calendar app S Planner on my Samsung Galaxy S3 and installed Google Calendar for a while. And when I switched back to S planner, its calendar sync was broken and I could not sync my events with Google calendar. The Google account sync was also showing an error under settings.
To fix the problem just go to Application Manager from Settings and under All tab find “Calendar Storage” and “Google Calendar Sync”. Open both entries and select Clear data. Bypass any warnings that pop-up. This would clear the jammed data that caused the glitch in syncing.








