Last year, I have to turn in my Celestron AVX Mount and the NexStar+ controller that comes with it as for some weird reason just broke.  I have a detailed description and the problems that I encountered from this entry on this blog http://everettquebral.com/2014/09/05/celestron-advanced-vx-mount-broken/

I don’t usually use the NexStar+ controller as I have the StarSense as it’s a lot better in storing my previously selected options.  Recently I was just doing a quick inventory of my equipments and found out that the NexStar+ controller is not working.  It’s reporting an Error 16 and 17 but this time it displays “Advanced GT” and not the “Model Err Num”.  What could have happened.  Anyway here’s a video of what I’m getting right now.