I have a Huawei P8 Lite phone. The phone isn't rooted. I primarily use Google Calendar, but of course another one, named Calendar (I guess it's Huawei's own) is also installed and has also access to my Google Calendars. I would like to use reminders quite often, but both of the calendars throw them at me when they are due and it's a little bit annoying. I tried to turn it off in the Huawei Calendar, but every now and then when I restart the phone the settings are turned back on to show me the notifications.
Is there a reason Calendar doesn't remember its own settings between resets and is there a way to fix that and make the notifications go away permanently?