I suggest opening a separate thread for the sound problem to get more attention for this.
P.S.: For the selected HiFiBerry DAC+ Pro the overlay set in “/boot/config.txt” would be “hifiberry-dacplus” (I think ). You might have to change that to
dtoverlay=hifiberry-amp100
Thanks, gvolt!! I made sure that I had that in config.txt … but, sadly, still no sound … working on other options
Did you try removing the DAC and just checking if you get sound at least from the Pi’s headphone jack or HDMI port?
). You might have to change that to