I think it's time to sale a couple of quads. I haven't flown the Q500 for about almost a month now. Decided to take it out for some air time. Started the TX first then the Q. Everything looking normal on the TX with 14satellites. Was in the Smart mode good 30' away. Hit the red start button and it just started hopping up and down about a foot off the ground. Red & white lights were blinking on & off 3 times a beat. Tried it again with a different battery, same thing. Did not want to try taking off as I wasn't sure what was going to happen or where it might go. I have not done a compass calibration on it. I have flown this over a dozen times with no problems before. Could it be because I have not flown it for a while? Any answers much appreciated!