Aux cable is not working?

cr
- in P series
1

Hi Community and I have since 2 days, the Huawei P20 Lite bought and the following problem headphones work perfectly, but if you want to use an aux cable (have different tested) it does not work. Eigendlich headphones should be the same as an aux cable

Ps Soundabout does not work

St

Maybe it could be due to the output device that you connect to your phone.