Reply To: Pi3B+ and IQaudioO Pi-DAC+ Pro: no sound

And yet another test after flashing volumio:

[ 10.299146] snd-rpi-iqaudio-dac soc:sound: ASoC: CPU DAI (null) not registered – will retry
[ 10.306816] snd-rpi-iqaudio-dac soc:sound: ASoC: CODEC DAI pcm512x-hifi not registered – will retry
[ 10.523600] snd-rpi-iqaudio-dac soc:sound: ASoC: CODEC DAI pcm512x-hifi not registered – will retry
[ 10.537586] snd-rpi-iqaudio-dac soc:sound: ASoC: CODEC DAI pcm512x-hifi not registered – will retry
[ 10.708736] pcm512x 1-004c: Failed to reset device: -121
[ 10.709166] pcm512x: probe of 1-004c failed with error -121

Same error…. Ok, the basic settings are quite the same in /boot/config.txt f.i. (after configuring via Web UI)