How to unlock full range and power on DJI Avata drone using FCC hack app.

Download [FCC] DJI Fly app to your phone.
Restart the drone and goggles.
Make sure official DJI Fly app is not running.
Connect the drone and connect the phone.
Run FCC DJI dly app
That's it. You drone is unlocked!

It will have maximum signal power and range. Video quality will be improved greatly as it too depends on the signal quality.