well… its like dying ! no returning back, (well even few dead people manage to return to life but no license restore from dongle to soft by steinberg 
)
at least they should make a big red warning when transferring license from soft to dongle
** Edit: i still think its wrong and need to be changed to be able to transfer all “Software license” product between usb dongle and software elicenser ! i do not get the idea of this restriction really !