Here are the application versions and DJI Phantom 3 firmware versions we have used successfully for off-grid / remote mapping missions:

Phantom 3 Advanced Firmware: 1.8.10
MapPilot Version: 1.5.0 build 031916
DJI Go App Version: 2.8.6
Ipad Mini4 iOS Version: 9.3.3

It is critical that the drone firmware and the mission application be thoroughly tested before departure to remote locations where no communications exist. If you need assistance for end-to-end mission planning and execution please do not hesitate to contact us.