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

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