Caller ID is not working (Xiaomi Mi4)
Please follow these steps if you are having difficulty enabling caller ID on your Mi 4:
- Go to Security -> Auto start -> Enable Eyecon
- Go to Security -> Permissions -> Permissions -> Eyecon -> Display pop-up window -> Accept
- Go to Notifications -> Manage Notifications -> Eyecon -> Show Floating Notifications
See here for general Xiaomi solutions.