Go to Wondershare Filmii and sign in to your Wondershare ID. Click on your account icon and then select Account Center.
In the Account Center, choose Plans & Products from the menu on the left. This will take you to a page where you can manage your licenses. Click to disconnect your Filmii license from your previous device.
Now, download Filmii on your new or reformatted device and sign in to your Wondershare