W-king D9 Firmware Update -

Because installing the wrong firmware can permanently damage ("brick") your speaker, it is highly recommended to obtain official files directly from the manufacturer:

A: Yes. You’ll need to re-pair your devices after the update. w-king d9 firmware update

A: Usually yes, by following the same process with an older .bin file. However, if the newer firmware updated the Bluetooth chip's bootloader, downgrading may fail. Keep your original file safe. Because installing the wrong firmware can permanently damage