For the modern Reflex XTR² version, the activation process has been simplified to allow for operation without the traditional hardware security key:

Once your simulator is activated, follow these steps to achieve "better" performance and more realistic flight:

If you are running Reflex XTR² on Linux (via PlayOnLinux) or Mac (via Boot Camp), the physical USB interface often fails to communicate properly. In these cases, an activation code is required to run the software without the hardware dongle.

Obtain your lifetime activation code and download link via the Official REFLEX XTR² Shop.