Why doesn't vivo mobile calendar show off its work?

If you use a vivo phone, and the phone calendar does not display power off/power off information, you can try the following solutions:

1, open the calendar and let it run in the background;

2. Connecting to WiFi has a good network speed;

3. Wait for a while and then enter the calendar to see if there is any update;

4. If the above scheme has not been updated, you can adjust the system time after one day, then use the above scheme to update the calendar off/shift information, and then set the system time back to the accurate calendar;

5.Funtouch OS 9 and above: Go to phone settings-applications and permissions/more settings-application management-calendar-clear data cache and restart the phone;

Funtouch OS 9 (excluding) the following models: Enter Settings-More Settings-Apply-All-Calendar. Clear the calendar and calendar-related process data and cache.