With the speaker OFF , press and hold the Play button for 3 seconds, then simultaneously hold the Power button.
Once complete, release the buttons and restart the speaker. You will need to "Forget" the device in your phone's Bluetooth settings and re-pair it. Troubleshooting Common Issues W-king D8 Firmware Update
A firmware update for the D8 is often necessary for compatibility and sound optimization. Key benefits include: With the speaker OFF , press and hold
Download and unzip the firmware and tool provided by support. With the speaker OFF