$50 -- Create DJI Mission Code for Phantom 3 Drone

$50 if you can give me code that successfully uploads and executes a mission to my DJI Phantom 3 Standard!!! (Drone)

I have been having this issue:
[Error: Navigation Mode Not Available]

But ChatGPT says it should be possible. But i haven't been able to make it work.

You can download the DJI Java Mobile SDK sample app from their github and try: https://github.com/dji-sdk/Mobile-SDK-Android

Or if you just send me the code that loads, uploads & executes a Waypoint mission to my Phantom 3 Standard drone, you get paid $50!! And I will be very thankful ?