Dear all,
I am trying to get it work, but without succes…
I would like to sample from my Android Phone (android 15) via USB into my Tracker Mini.
I selected Audio Input+Output in the Config menu on the Mini. I changed the settings on my Phone on the Developer settings. But still the phone only plays via it;s own speakers and not via the USB on the Tracker Mini… frustrating.. But…. I hope you all have some good pointers that will help me.
Hey @thieske4u, welcome to Backstage! 
Android is very hit or miss. It really depends on your phone.
The main issue is that not all android phones support USB Host/Client for Audio/MIDI the same.
For example. WIth my elderly One Plus 7, the Tracker actually shows up as an audio device and midi device. But on my newer Samsung Galaxy S23 it doesn‘t at all.
So my suggestion: if you want to use your phone get a Bluetooth Audio dongle that you can connect to the Line In of the Tracker for sampling. They are cheap and will get the job done 
Thank you for your response. I had difficulties with my phone and the Ableton Move as well. Same issue I guess…
If only I could search on Android phones that do have the correct implementation of USB host..