Take guesses on why my trucks got the twitches?

[Trick440]

I have the Quark 125b. I went to re program and now its got a bad case of the twitches.

I have sense reprogramed it , Race mode on and off, . Noise Cancelation on and off. Niether did anything.

When I try to run it slow and smooth it will get get jumpy. When I do full throttle and then let go to nuetral it will lock the motor brake for a second. (very bad). This isn't happening everytime but it is happening at least 50%.

I don't know what to think. I also have a Spektrum DX3 remote.

Any suggestions?