I am using phat beat and have installed the software using
curl https://get.pimoroni.com/phatbeat | bash. I get audio output after installation and can see that the phat beat is working.
However, after rebooting the device, the audio output no longer works. On terminal, I get
ALSA lib pcm_hw.c:1713:(_snd_pcm_hw_open) Invalid value for card
audio_open_alsa: failed to open audio device default. No such file or directory
And if I resintall again, the problem would resolved, until the device reboots, then the problem will recur. Could anyone advise me on this matter?