Issue: In some rare cases, connecting a supported device to unlock the LE feature set fails to work with Cubasis LE on iOS 8.
Solution: Please restart Cubasis LE and make sure the included demo song properly plays back through the built-in speaker of your iPad. Afterwards, connect a supported device to unlock the LE feature set. If the unlock procedure keeps failing on iOS 8, please update your iPad device to iOS 9 and try again.