If you try connecting litchi to spark, the camera will show up, however, you cannot takeoff. I tried to work around this with a palm launch, but if you try to control it with Litchi after that, it will fly away. I got lucky, I grabbed mine before it got too far.
Maybe? that's not the answer you wanted or asked for but here's my experience, had my sparks a year old, NEVER updated, get these messages all the time, , to update, I just delete them , my spark will fly anywhere with litchi. some think they are required to up date, I never did, never had a problem, spark flies fine wherever I take it. once in a while it will signal me to calibrate the campus, witch I do.
Some spark owners begin to have a lot of problems after up dating.
lots of luck
Don't take this as the gospel, but I believe that the firmware also has something to do with preventing your bird from taking off. So if the latest Fly Safe database on your bird says no-go, then it will probably not take off, whether you use Litchi or not. To circumvent that I would suggest rolling back the FW on the bird until you are able to take off with Litchi (which seems to be working for @melvonnar who has never updated his - LOL), or use NLD to remove the NFZ restriction (I think they support it on version .0900 for Spark) and you should be good to go.