Unplug the main headset cable from the USB control box during the initial launch of the tool, or ensure it is firmly seated if the tool requires presence detection. Note: The firmware updates the USB dongle itself, not the physical speakers inside the headset.
No. HyperX has released rev 0015, rev 0020, and some region-specific versions. Rev 0010 is older. However, for certain headset hardware revisions (especially older Cloud IIs from 2016–2018), rev 0010 may be the last compatible update. Trying a newer rev might fail. hyperx cloud ii firmware updater rev 0010 .exe file