What could be wrong?

[junkman]

The soldering looks EXACTLY like the two I have that work fine, so that's not the problem. I have had trouble programming them to certain radios. I would try a different radio/receiver first. Another odd thing I have noticed with an 80a one, is it doesn't work 100% with my dx3s. If I just slam the throttle, it just sets there, no lights change, just acts like it didn't get the signal, and will set there all day at wot. If you are just a little bit slower on the throttle works perfect, or are rolling and stab wot works fine.