I didn't notice that there was a CC ! Never mind, your voice is clear and understandable for my poor english level...
I don't understand why shop that sell yaw motor doesn't advice that it's impossible to change motor without the process you explain.
A huge thanks to you Ted4797 !!! You save me with your video showing how to open gimbal's motor. Now, everything is fine and my camera is fixing right ahead! I passed last week asking on all worldwide forum how to fix my yaw issue and your thread is the only one that explain clearly the process...