help

I have an E-Flite Timber and have been having a problem with the right aileron servo jittering when the stick is in a certain position. Rebinding and wire rerouting haven't helped. It only started after I replaced the other aileron servo, but I have no ideavwhy that would have any affect...

Hi, I am planing to build up the xhover stingy frame and I have a few uncertainties. 1. I want to use the Betaflight f4 fc but I don't know where to solder my spectrum receiver that takes 5v. spektrum receiver: https://www.spektrumrc.com/Products/Default.aspx?ProdID=SPM4649T Betaflight f4...