Meizu – alarms and notifications
Source: Don’t kill my app
Meizu is probably on par with Huawei and Xiaomi in their approach to background process limitations, but they get a better rank probably just because those devices are not that common on the market and thus do not cause such a pain to the developers as the aforementioned.
Adjust your settings:
- Device Settings > Advanced Settings > Battery manager > Power plan set to Performance
- Device Settings > Advanced Settings > Battery Manager > Protected apps – check Circadian as Protected
- Enable Device Settings > Apps > Circadian > Battery > Power-intensive prompt and Keep running after screen off