OK so i purchased a strix nano goblin a few years back and had a blast with it for awhile. It was then stored on my wall for maybe a year and when I took it down to go flying again I found the motor to be making a high pitched squealing sound at exactly half throttle every time i tried to ramp it up. I tried a brand new emax motor to see if maybe it was something grinding on the inside but that didn't solve it. I also tried switching esc's of the same FT 20 amp model as well as switching receivers and props. Nothing seems to be fixing the problem and i am quite confused since it was working perfectly fine when I hung it up. Upon further research I think it may have something to do with the ESC timing, but I cant for the life of me find out how to program the flite test ESC's. Has anyone had a similar problem or any idea how I might be able to solve this?