Flick the power switch on the rear of the speaker to OFF.
With your other hand, PRESS & HOLD the MUTE button on the front of the speaker (NOT the one on the remote).
While continuing to PRESS & HOLD the MUTE button, flick the power switch to ON.
Observe the front of the speaker, it should read "noAS" repeat to enable to AS.
5- If it doesn't, repeat the steps.