: Use a high-quality USB-C cable connected to your computer.

You should see:

: Power on your speaker and pair it with your phone via Bluetooth. Check for Updates

A: Absolutely not. These are scams or malicious files. The D9’s DSP (Digital Signal Processor) has hardware limits. Forcing more bass will blow the passive radiators. Stick to official firmware.

Maximize Your Sound: A Complete Guide to the W-King D9 Firmware Update