I saw that when it was posted but was a little intimidated when I read through it. I’ll give it a shot once I get the drone back tomorrow. I really don’t want to have to ship it somewhere for repairs.
You could try this slightly easier process first.
Uninstall any version of Assistant 2 you have on your PC.
Download and install
from here a fresh version of Assistant 2 for Mavic.
I do not have a MM but i have noticed that a message pops up about the Mavic Mini when first running Assistant 2 for Mavic. You will have to read that message.
Also uninstall any Go 4 or Fly app on your phone type device (I use an iPad Mini) now reinstall the latest Go 4 or fly app version.
Connect your MM to the PC by the supplied cable. Switch on the MM and run Assistant 2 for Mavic on your PC.
Go to the firmware Update and
refresh or upload the latest firmware.
You will now have to restart your MM (
has the gimbal improved?) and connect to the Go 4 or your fly App.
Try and Calibrate the Gimbal now using the Go 4 or Fly App. (You must know How because you said previously that you tried but it did not finish.)
Did it calibrate?
Has the gimbal improved?
If not your options are to download and run the dji tools or send away for repair.
I had a quivering
Mavic 2 pro gimbal, after a crash and a DIY gimbal rebuild.
Running the DJI tools commands JointCoarse followed by LinearHall fixed the gimbal issue for me at no extra cost.