You can just drag-and-drop files onto the Windows (Or the Mac OS) App to flash updates manually into your controller. Hope that makes sense. Just connect your controller, load the App, it will show your list of rune packs, but then just drag and drop a file anywhere on the App and it will flash that file into your controller. I.e. you don't need the old utility to flash files into your Berserker but it's sort of a "secret/hidden" feature because it's not really documented in the manual that you can just drag-and-drop.