In the "no command" screen, you get to the next screen by pressing the volume up and power keys together, BUT you should press the power key a bit earlier before pressing the vol+ together with it.
Hope that works?
USB audio out is a bit of a weak point here... it does not do MQA unfold, also is not bit-perfect in terms of preserving the sample rate.
You do need an app like UAPP to get bitperfect and MQA for USB audio output.
Unfortunately It's still not working.