Hi! I've got this device too, and I also get bugged by the single trigger mode issue. I've tried updating the firmware with @pilatomic's fix, but got the same issue as others - update stops at 99%, and then the device doesn't turn on. Updated back to 2.1.0 successfully. Also noticed their sizes differ, so I guess you can't update between different minor FW versions. @pilatomic, would you be able by any chance to release a fix for version 2.1.0 too?