I'm using Itead BT shield and here are not Arduino pin #2 and #3 routed to BT TX and RX. I made a strap from Arduino pin #2 to BT shield TX and Pin #3 to RX. But still no sucess. :~
Yes, I got the V3.1 and AndroLEDV10_3.ino working with serial monitor and was able to visulize button #1 ON/OFF.
All checkpoints (1-7) in your answer are fulfilled.
In the Androind BT commander I observed some information under Data1 and Data2 (not under Data3). When I push any buttons they only got activated (green) a very short time.
I don't see that LED at Arduino pin#13 got active when pushing button 1.