Did you remove USB audio support

[yuunanase]

I have been using USB headphone amp (PHA-3) ever since Z3, but after recently upgrading to XZ, I can no longer connect to the audio device.  I have tried many times using detect USB or even restarting the phone.  I am just wondering if you have removed USB audio support from the XZ?

[Rickard]

I'm sorry to hear that

Support for USB Audio is still there. What happens if you connect another device like a mouse, keyboard or thumb drive with the OTG-adapter you have? Can your phone detect other devices using the same cable?

[yuunanase]

Based on your suggession, I found that its the USB to go adapter I was using was not connecting any of my USB devices.  Currently, none of the micro USB to USB-C adapter works.  Instead, I went out to get a USB-A to USB-C adapter, and it works flawlessly.

Many thanks