That was my first thought as well.

FWIW, I had a brand new Spektrum receiver with occasional problems and it turned out to be the antenna wire.

BTW: Replacing the antenna wire on a Spektrum is a PITA! They solder the wire right next to a few itty bitty surface mount components and then the use some kind of rubbery glue stuff to help hold the antenna in place.

ARG! So I should check out that connection...ok.

I hope for your sake that it's not that. It was a real PITA to replace the wire - and I don't exactly consider myself a soldering novice. The glue stuff had to be carefully scraped off and the tiny solder point for the antenna doesn't allow anything larger than 22 or 24 Ga wire (at a guess). And then you have to be careful not to heat the solder point too much because of the SM components nearby (about 2mm away).

I had to re-solder mine too, it was no easy task, but with a small 20 watt soldering iron, it made it alot easier!

Lucky you - all I had was a 40w iron (with a fairly large tip). I am able to reduce the heat with a homemade temp control though, so that helped. Made me a bit nervous to do that on a brand new Spektrum module, but really wasn't since I technically had it for about 3-4 months.

Yea, i cant imagine using a tip almost as big as the board being worked on! ;)

Lol, tell me about it. Kinda like using a jackhammer to do cabinetry. :)

I'm going to ask a dumb question. Did you program the ESC for the new radio?

Another thought is that, could your fail-safe mode on the radio is set at WOT. I don't know why it would go into fail-safe mode though.

I did. Always do with a new rx and or radio. I like to make sure the settings are read by the esc properly and all that since I'm not familiar with it all. I may just put the rx in my jato to see how it responds in there. If that just takes off, i really don't care as much. it's what i got it for! LOL, but my maxxes are not cheap to repair like the jato....

did you get it figured out yet?

Not yet. Been busy with school....to rule out the rx though, I'm gonna throw it in my Jato. It's the RS300, I use the RS310 but it should still work fine just for testing. I tried moving the rx but it didn't help. If the rx works fine in the jato then I'm leaning towards the li saver. The other thing I was thinking was a low rx pack.....so we will see.