I recently sent my P4 to DJI for repair.  The service was very good and the drone was repaired and sent back to me in a reasonable amount of time.  The repair was great.  When I received the repaired drone, I immediately recalibrated where it was needed.  Test flight was normal and as expected.  Thank you DJI.

Glad to know everything goes smoothly, we will keep going to provide more professional customer service to our valued customers, hope you enjoy flying.