Thanks for your reply.for stuck compass, I turn the drone up side down and hit the bottom with a screw driver few firm hit. If problem still exist, follow this video for repair
Don't think I want to be flipping my drone over and hitting it with a screw driver -may cause more problems. I flew two batteries today and my P3S started up right away and flew normally so maybe it was an intermittent problem.
When I did a search for Compass Stuck lots of results came up. I have read through a few so far and it appears like this can be an intermittent problem. I'm going to keep an eye on my P3S and the next time I have trouble getting the motors started, I'll know what might be causing it.
Chris