- USB cable changed to data cable for sketch upload (duh!)
- Put on the 5V jumper on the miniPCB for ST4 power
- Use a straight through ST4 cable instead of a telephone cable (Wasn't so easy to find over here and didn't want to buy a crimper tool for infrequent use. Bought the cable from an astronomy shop.)
After that still no success! Nothing happened after the TeenAstro splash screen came up.
Then upgraded Onstep to 2.22p, and SHC to 1.5f.
So, thanks again.
YEA! That did it.