This is only for P3P_FW_V01.11.0020!!!
1) unzip this archive
2) put .bin file on SD card
3) insert SD to Phantom
4) turn on Phantom
and further on my instructions for P3SE...
It is necessary to replace the files on the Android device.
Location of files /sdcard/android/data/dj.pilot/cache
Files to change, after DJI GO starts to require an update.
Do not forget, the vertical down velocity - 3m/s
On the decrease from a height of 2000m it will take 11min.
I think in the patch need to increase vertical down velocity to 5m/c
I'm make a new patch.