Originally Posted by freechip
Can I ask how you know "definite" it was signal loss?
I found the problem that I thought was just signal loss. The connector for the SBEC that plugs in to the RX had a loose prong and was not making good contact. This is the SBEC that I was using in both planes that had no control. I guess the other two planes went down because of bad batteries. They just lost power and stalled.
Where do you get Firmware updates? And how do you load them?