The incoming call is signalled acoustically, but it is not shown on the display and you cannot answer it.
Please check the notification settings of the phone app.
1. More![]() | 2. Menu![]() | 3. System settings![]() |
4. OK![]() | 5. Apps & notifications![]() | 6. See all apps![]() |
7. Choose the Phone app![]() | 8. Notifications![]() | 9. The settings must be enabled![]() |