volume control on mag 254

Do the right and left arrow buttons do anything?
Up and down should change channels, do they do that?

You can check that your remote is transmitting by looking at the front of it through the camera of your cell phone. Will see the bulb light up when sending signals.
 
The mag254 's blue light led blinks when a button is pushed..
Do the right and left arrow buttons do anything?
Up and down should change channels, do they do that?

You can check that your remote is transmitting by looking at the front of it through the camera of your cell phone. Will see the bulb light up when sending signals.
 
did you go to the inner portal, and check the settings for audio? there is an icon in the lower tier right side of the main inner portal menu that is full of instructions, and setting information.