I recently purchased OPPO F1S. I am facing a problem that when i set a reminder in its own calendar, its working but dont have Snooze option. If i install other Reminder Apps, they have snooze option but when screen is locked and off, reminder doesnt remind on time. When i unlock the phone then reminder works.
Kindly help how to resolve this issue. I tried to search any setting to put the reminder App as background App but could not.
I have Android version 5.1
ColorOS version V3.0.0i

See More: Off screen Reminder App for OPPO F1S