Exactly what is 4D Extra? Did it come with a sewing machine?
Edited to add: I found it with Mr. Google. Since it is a Husqvarna product or associated with them, wouldn't it be a good idea to contact your local dealer?
I Googled 4d embroidery extra dongle not recognized
There are many replies. I am sure one of these websites will have your answer.
Last edited by Barb in Louisiana; 07-13-2019 at 11:27 AM.