: You may need a utility like "Multi Media Product Tool v2.07". Connection Mode Connect the speaker to your PC via a USB cable. buttons simultaneously to enter update mode.
: Use a reliable, short USB-C cable to prevent connection drops during the flash process. w-king d9 firmware update
The following appendix provides a detailed guide on how to update the firmware of the W-King D9: : You may need a utility like "Multi Media Product Tool v2
W-King D9 Firmware Update – What You Need to Know : Use a reliable, short USB-C cable to
: Both standard EQ settings (EQ1 and EQ2) benefit from the update, with users noting better clarity compared to older versions or similar models.
firmware, follow these steps derived from community best practices: Tool Requirement : Download the Multi Media Product Tool v2.07 on a Windows PC. Connection : Connect the speaker to your computer using a USB-A to USB-A cable (USB-C cables may not always be detected by the software). Firmware Mode : To put the speaker into update mode, hold down the buttons simultaneously while it is connected to the PC. Verification
" models, which typically show up as distinct Bluetooth names.