Got this from another thread, try it:
Originally Posted by ....VoLtAgE....
take the frame around the speaker off and take the joy stick out. may not be in right. actually to make sure its not really working do take the joy stick out and their is a grey button you can hit with a allen key. then if it works then you have to put the joy stick back it and push hard with the tip of your finger and hold untill it goes to the program modes.