Please install the pulseaudio-utils package, then try the following (while the phone is in the faulty state) :
pactl set-sink-port @DEFAULT_SINK@ "[Out] Earpiece"
Is sound now working? If not, continue with:
pactl set-sink-port @DEFAULT_SINK@ "[Out] Speaker"
Is sound now working?
Please install the pulseaudio-utils package, then try the following (while the phone is in the faulty state) :
pactl set-sink-port @DEFAULT_SINK@ "[Out] Earpiece"
Is sound now working? If not, continue with:
pactl set-sink-port @DEFAULT_SINK@ "[Out] Speaker"
Is sound now working?