Jbl Xtreme Update Firmware -

: Connect your speaker to a power source. Many updates require the device to be charging to prevent it from powering off mid-update, which could "brick" the device.

: Launch the JBL Portable app. It should automatically detect your connected speaker. Check for Updates : If a firmware update is available, an orange circle or an "Upgrade" button will appear over the speaker icon. Start the Upgrade : Tap the update button and select Wait for Completion : The app will transfer the software to the speaker. Do not turn off the speaker or close the app jbl xtreme update firmware