The first time using Cubase

i just bought cubase 10.5 pro from my friend ,he gave me Usb-elicenser and i had changed my email. But i realize a problem that i can’t use activation code. how can i solve this problem? i really need a help. I’m from Viet Nam.

Hi and welcome to the forum,

You Donn’t have to use the Activation Code. The license has been activated to the given USB-eLicenser already. Just plug the USB-eLicenser to your computer and you are ready to go.

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Thank you so much. Hope u always very well and have a good day!