Problem with connection of DDJ-400 and DJAY Android app

I have problem with connecting of my DJ contoller. I am new into this, so I may be doing rookie mistake, but I have not found any questions like that on the internet and I am getting quite desperate.
I have DDJ-400 and full version of DJAY android app on Xiaomi Redmi Note 9 Pro.
I have connected my mobile with my controller via adapter (via pictures).

The controller is powered now, but when I do something (for example move with crossfader) it does not do anything in the app.

Thank you in advance for help

Hi @tomifaj,

Thank you for getting in touch and welcome to the community.

I am sorry but we are not supporting the DDJ 400 natively with our Android App at the moment. I pushed the implementation of the device internally.

On another note, we are currently working on a new Android version and would like to invite you to join our beta program:

Thank you very much.
I´ll definitely try the testing version