Ok guys, i think i solved my issue with the gimbal. After watching the videos posted here I was ready to start doing surgery on my drone. Before I began, I noticed that one of the brackets on the side of the camera had a small gap (see picture). It felt like this bracket is designed to limit the normal 90 degree rotation of the camera. I had a hunch that my crash forced the camera outside of this limit. I took a flat screwdriver and forced the bracket away from the camera and was able to rotate the camera back into its original position. I started the drone and the gimbal calibration symbol reappeared in the DJI 4 app. I performed the recalibration and it went well. I haven’t tried to fly yet, but I am confident that my drone is back in service. Thank you all for your repair recommendations!