DJI have released their latest fw for the Mavic Pro and the latest DJI Go 4 App
It’s been noted that when updating this fw users have found it may stick around the 81% and 86% marks for up to 15 minutes, do not switch off unroll the craft has gone passed this point.
Updates for the Mavic are
Added a self-diagnostic test function for ultrasonic sensors every time the aircraft is powered on.
Improved the Interval Mode performance.
Upgraded the D-Log color mode to extend dynamic range.
Optimized the video transmission by reducing the transmission signal loss ratio.
Restart the aircraft and remote controller after upgrade is complete.
If the firmware upgrade fails, restart aircraft, remote controller and DJI GO 4, and retry.