Although JB Weld is a good short time fix in a pinch, it may not be the proper repair in the long run.
I have watched YouTube videos and built confidence in my ability to repair the appliances around the house that I never would have tried on my own.
The Spark was put together which means it can come apart.
The Spark tear down and rebuild videos I've seen look to be very informative, as long as you follow the steps.
Watch different videos and take notes.
One may have an easier way than the other when reaching a goal.
It looks like a soldering gun, a torx driver set, and patience may be all that's needed.
Practice soldering with scrap wire before working on the Spark.
If you don't feel confident yourself, there are
repair shops available that will do it for you.
Here is
DJI's site.