I didn't. I've been looking for one from a reputable person. I actually got this one from a guy on Craigslist for $200 just over a year ago. If you see one please PM me or just post in the thread.
I had a friend help me through this process and got the quote today. $300.11
My son crashed it and it broke the arm and gimble. So the two options are pay for the repair and keep SDK or get the Mini 4k (not Mini 4 pro) and lose SDK. I have...