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.