Hi Leutz, with my P20 Lite you can only make calls with the speaker switched on?

As written in the topic above, my Huawei P20 Lite can only make calls with the speaker switched on, so I will only be heard when I switch this speaker on. Hearing is also possible without a loudspeaker.

Seems to come more often?! With the cell phones.

Solution?

A reset to factory settings did nothing.

Make a voice recording with the Huawei recorder, if nothing is recorded then the microphone is broken or has a loose contact if it only occurs once.

Where is the recorder from Huawei, I have many recorders as an app on a mobile phone

Then take any one, recorder is recorder