Hello Don, please try the latest version:stubblejumper wrote: ↑Mon Jan 14, 2019 5:54 amI tested ASIair with SkySafari on my Android tablet with my iOptron CEM25 mount and the Plate Solving and mount synchronization worked like a charm. However, tonight I got a "syn failure". I tried to redo the Plate Solve but kept getting the same error when invoking the Synch function. I can't find a list of error codes so do not know what exactly is wrong and how to fix it. Since it worked before, I am at a loss.
Another try, update your mount's HC firmware or reset to factory settings.