Does not work on Wiko Cink Peax

I bought the LU2 after doing research and reading that it was he who was the best job. I was hoping to finally be able to use my hands-free kit with my Pioneer headphones. Yet when I connected the LU2 was the big disappointment.

Failing to use them properly, my Wiko has always been able to identify helmets that were connected above it (the helmet symbol appears) to LU2. Here the sign does not appear at all that indicates that it is not recognized. That does not mean there is no sound coming out of the headset is that it comes out (although of lower quality) at the same time it comes out of the speaker of the headset. It is obviously not possible to use public transport in such conditions.
I also tried to use it to answer a call without being able to get there (if logic is not recognized)

It's a shame because I had high hopes for this cable but it just does not work with my Peax Cink.