IQaudIO DigiAMP+ muted at switch on

New to all this but yesterday, I setup a Pi3 with an IQaudIO DigiAMP+ on top.
Downloaded the latest Volumio and everything seemed to work fine.

However, after switching off via the GUI last night, on turning back on this morning
the Pi boots up and connects to the GUI on my PC but I get no sound.
Looking at it, the mute LED is lit on the DAC so question is, how do I un mute it or
make it boot up without muting?

Using an IQaudio PSU and Pi is connected to my LAN via it’s built in WiFi…

Thanks for any help folks

Regards Phil

Change Volume? When I had a buggy installation, the startup-volume in playback options was set on “Disabled” which leads to 0 Volume…

Thanks…tried that but no joy…

But… I think I have fixed it.
Looking into the IQaudio info online, there was this…

"# The amp will startup MUTED

to unmute the amp.

pi@raspberrypi ~ $ sudo sh -c “echo 22 > /sys/class/gpio/export”
pi@raspberrypi ~ $ sudo sh -c “echo out >/sys/class/gpio/gpio22/direction”
pi@raspberrypi ~ $ sudo sh -c “echo 1 >/sys/class/gpio/gpio22/value”

to mute the amp once more…

pi@raspberrypi ~ $ sudo sh -c “echo 0 >/sys/class/gpio/gpio22/value”

SSH’d into my Pi and put those lines in and it unmuted and I got my sound back…
Will see how it goes after multiple on/offs


Hi, we fixed those problems in a later release, please try it: …

(or use the updater by setting it in test mode, by going to volumioip/dev )