Intent BOOT_COMPLETED not working on Huawei device

Question

I want to listen to APN Changes in my Android App.

Therefore I start a Service on android.intent.action.BOOT_COMPLETED. This Service starts a ContentObs

Answer 1

Huawei Phones have a built-in startup manager, it could be that the app is not yet enabled.

Go to Settings > All, and choose Startup manager. This program is used to manage startup apps on Android phone. Allow or disallow app to run automatically after the Huawei phone starts up.

Answer 2

Just for an update, Huawei changed the menu path in the Android 9 version.

On Huawei Mate 10 pro the way to get to this menu:
Settings -> Battery -> App launch -> Disable automatic management for your app.

A pop-up will appear, asking what you want to allow (all true by default). make sure that the first, Auto-launch is enabled