Untill I can direct link my flight data log, what would cause this?
1st three flights were auto take off/land in beginner mode. Flight 4 manual take off in beginner mode. Doomed flight begins at 05m 18s. I centered stick at 6' to hold altitude and it just did its own thing untill it topped out over 60', and came down just as fast! I was calibrated, strong signal and GPS.  I think I got taken on this used P4P....Your thoughts?https://photos.app.goo.gl/KcXb6ZUy2VtVQzKV8

Hello there Badwater_Dan. I am sorry to read and to know what happened and thank you for reaching out. Since there was a crash / hard landing that happened before. I would recommend you to contact our DJI support team at https://www.dji.com/support?site=brandsite&from=nav for further assistance. We have a team that will do there best to analyze and give out the best resolution for this issue. Again I am sorry for this trouble and thank you for your understanding.

Crash, hard landing before what?
First 3 flights were without fault.
The 4th flight stated normal until it reached 6' , after that, the craft would not respond and then crashed. I have no idea what may have happened before I received the P4P and if the previous owner crashed it. Is this something that could be determined in the shop?