Posted 30 August 2015 - 02:24 PM
The card you need is a mini SD card, not a regular SD card. (I banged my head against that brick wall myself for a while.) A regular SD card looks like it should fit, but it does not. Instead of a mini, a micro SD card in a mini adapter will work. The trick is the size of the card. It cannot be a high density one. The maximum size is 2 GB, but it does not need to be one that big. I believe someone else has found real mini SD cards that were about a half gig in size, which is probably about perfect.
The best way to make one is to use the AutoStar Updater program. In fact, that may be about the only way to make the card that can go into the slot. If your scope has version 1.4, it cannot be updated from a computer. It must be done from a card. I had that with mine. With version 1.6, that problem is supposed to be fixed.
Another thing to try, if you have not done so already is to plug and unplug the connecting cable from the handset to the computer many times, to clean the contacts. When a scope sits for a relatively long time, contacts can get dirty from corrosion between differing metals and humidity.
Hope this helps,
Sky Hunters' Haven Observatory,
Broken Arrow, Oklahoma