Refurbished stock P3S - out of factory warranty - no modifications. Firware/sofware versions: as received from DJI - no updates installed (at least none that I know of!) .
I am having a problem with the gimble not "settling in" upon powering up the drone's battery. I had to replace two broken parts on this gimble way back in July of this year - the pitch control arm and the gimble-to-damper-ball connector plate. After that I had to calibrate the gimble each time I powered up the drone [the camera would come to rest upon start-up, pointing at about 11 o'clock and with about a 10-degree counter-clockwise roll. Calibrating it took out the roll error but not the left-right yaw error.])
Tonight when I powered up in preparation for some early morning photo shooting the gimble went haywire. It shimmies and shakes, flips violently back and forth in all three axis, then sometimes stops with the camera lens facing about the 8 o'clock position (viewed from above). In that position it rapidly vibrates up and down in the pitch axis, yaws clockwise back to about the 1 o'clock position, where it again rapidly vibrates up and down in pitch for a few seconds, then back it goes to the 8 o'clock position - repeat - repeat - etc., etc, etc... To top it all off, the camera itself gets very, VERY hot.
All grub screws have been checked for proper orientation with their respective motor shafts and for tightness. All cable connections and cable conditions appear to be correct and undamaged. No unusual sounds can be heard coming from the gimble.
Any ideas anyone?