Our firmware rollback consulting service will help you go back to an earlier firmware of your choice. We support Mavic Pro, Spark and P4/P4P (no Inspire2 or P4A support at this time). We will connect to your computer and help you successfully re-install the firmware of your choice. I will help guide you through the process to downgrade and provide hand-holding and answer any questions. This option is available for PC and Mac, on Mac we need parallels with Windows (Chromium works fine).