Huawei makes strange noises?

My Huawei mate 20 lite plays some kind of melody / noise from time to time. How could that be?

How does it sound? Really like a real melody or something mechanical-sounding?

When the battery charge gets low, when you get a message or when secret services stop by

Did you restart the thing?

Difficult to explain like an app that sends a notification but I have no such App. I guess so 4 sounds similar to a xylophone?

For messages, I do not have such a sound (in general, my phone on silent). My battery is also 50%.

Try ringtones and so mute and see if these sounds then still come. If they do not come anymore then this is probably some app or similar.

Maybe there are more exact times when it happens? So if, for example, Battery is too low or something.

My cell phone is always set to silent except for Medien.Mein battery is half full. Let's see if it makes the noise at night now.

Reports tomorrow then if what was!

I will!

Naaa? Came something?

So at night I noticed nothing even the day after. No more. I guess it stopped.

Well!