A:Answer Hi Sam, your Megablast sounds like it needs a reset (warning: This procedure can permanently damage your speaker and should ONLY be used if the speaker won’t turn ON. Frequent use of the reset procedure is NOT recommended.) 1. Briefly press the “-“ (volume down), “+” (volume up) and small action/Bluetooth buttons at the same time (See picture below).2. Next, press the large power button on the speaker and it will turn back ON. Note: it may take a few moments for the speaker to reconnect to Alexa or repair to your mobile device. 3. After resetting the speaker, it’s highly RECOMMENDED that you use the Ultimate Ears app (available from the app stores for iOS and Android) to check for available firmware updates for your speaker. To do this, launch the app > tap on the settings icon > scroll to the bottom of the screen and press “Check for Updates.” (Depending on the version of the app you may need to disable Automatic Updates before you can manually check for updates. If prompted, follow the instructions to update your speaker’s firmware. I hope this information helps! If you ever have additional feedback or questions regarding Logitech products, feel free to visit https://support.logi.com/hc/en-us Thanks, -Logitech