The speaker must be turned off and booted into a special mode to accept new software. Power off your W-KING D9 completely.

Most W-King updates are performed via a using a USB-A to USB-C cable.

is a critical process for users looking to resolve connectivity bugs, improve audio depth at lower volumes, or transition the unit to the "D9-1" software standard. While the speaker is highly regarded for its 60W power, its early production runs often required manual intervention to achieve peak performance. The Evolution of the W-KING D9 exists in two primary software iterations: the original " " and the updated "

Ensure your speaker is the standard W-KING D9 or the D9-1 (Upgraded version). Firmware files are model-specific and are not interchangeable.

Open the flashing software provided by W-KING support. Load the Firmware: Select the firmware file you downloaded.

Before downloading anything, you must confirm which you own. W-King has produced several iterations:

Resolves issues where the battery indicator misreports capacity or the speaker stops charging past a certain percentage.