Operation with external microphone Boya BY-M1

I purchased a Boya BY M1 external microphone.
It works perfectly well on a samsung phone, but not on my FP2 . FP2 always takes the sound from its microphone, not from the external one when connected.
I tried to download the same app on my wife s samsung and on my FP2, clearly the problem is not with the mike nor the app.
I tried on 3 different apps, every time the FP2 does not take the sound from the external microphone .

Note that when I put a telephone earset+ microphone, it works well. It is only with this external microphone only.

It seems that this is a FP2firmware issue . Any ciomment ? Should I forget using external higher quality phones for my recordings with FP2 ?

3 posts were merged into an existing topic: Which external microphone can I use