XZ Premium usb audio problem

[Fabian6]

I bought the oppo HA-2 SE (an external dac/amp) and tried to connect it with the usb OTG cable and an adapter for micro-usb to type c but the xz premium wont recognize it as an audio device. The oppo is working fine with my sony Z2 but i dont want to carry my old phone to use it. I have no clue how to fix this but thanks to everyone who tries to help me.

XZ Premium is running on Andriod 8.0.0 Oreo and is a G8141.

[Wakin2000]

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@Fabian6 wrote:

I bought the oppo HA-2 SE (an external dac/amp) and tried to connect it with the usb OTG cable and an adapter for micro-usb to type c but the xz premium wont recognize it as an audio device. The oppo is working fine with my sony Z2 but i dont want to carry my old phone to use it. I have no clue how to fix this but thanks to everyone who tries to help me.

XZ Premium is running on Andriod 8.0.0 Oreo and is a G8141.

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I also found this issue on my Pioneer XPA-700. I found that if use an very short type-c to microusb cable could fix it. This issue may be related by an type-c usb 3.1 power supply.

[Fabian6]

I tried it with a 10cm OTG cable and an usb type c adapter on one end to connect it with my phone. Unfortunately it did not help and the music is just playing from the normal phone speakers. Anyone who got some ideas how the fix my usb audio?