回答“Won't turn on with/without plugged to AC charger”I just had this problem. Did some searching and came across this: update.bose.com/soundlinkcolor to update my SoundLink's software. If that doesn't work (or if your unit's software is up to date), do the following: 1. Plug SoundLink's in to wall charger 2. Hold down the play/pause button for 15 seconds. 3. Then, BEFORE releasing the play/pause button, unplug the charge cord from the unit. 4. Release the play/pause button. 5. Plug the unit back into the wall charger. 6. Press the power button, and your unit should power on. Side note: Steps 1-4 above put the unit in "ship mode" and steps 5-6 take it to 'normal mode'.