So I crashed my drone after flying for almost 20 minutes over a park and just when I wanted to do the final fly in a tennis court, did not calculate right and hit the wall of the court. The camera detached from the absorbing board. Here I am fixing it myself.

I learned how to open it from this folks below:

   • DJI Mavic How to replace the gimbal r...  
   • (updated version) DJI Mavic Gimbal Mo...