I recently purchased a blade cx and everything was going great till the other day. Everything is trimmed out, lipo charged fully, new batteries in the transmitter but when i give it full throttle it wont lift off the ground and spins to the left. The 4-in-1 unit will blink red and green (the manual says this is a crystal problem) Could this mean i need new crystals, or maybe a new lipo? I have never overcharged or discharged too much. Any thoughts on what is wrong? Thanks

Make sure both your throttle stick and trim set are all the way down before turning on your transmitter. I had a similar problem a few weeks ago and it turned out that I bumped the throttle trim lever at some points between flights. The 4-in-1 will not initiate if there is any throttle input at all on the transmitter.

I'm not sure if this really addresses your problem, but it's still good to rule it out.

Yea i have both the trim and stick at the lowest point. That doesnt seem to be the problem.

A motor giving up?

Biker-74