I've been happily using a Digi2 Pro with a Pi 4B and Spotify Connect for a few weeks. I decided to add a tri-colour status LED which I attached to GPIO17 (for power) and GPIOs 5, 6 and 13 for RGB. The LED worked fine with a simple Python program but now my HifiBerry Digi2 Pro card doesn't work i.e. no music. In-fact when using command aplay -l the card doesn't show as a device anymore. Have I fried it somehow? Are there any diagnostics I can do to see if it is broken or not?
Have I fried my Digi2 Pro?