Tap the Download Icon (the down-pointing arrow). You will be prompted to name the region for future reference.
While connected to Wi-Fi, open the DJI GO 4 app and go into the Camera View . Open the map and manually scroll and zoom into the area you intend to fly. Ensure you zoom in enough to load the high-detail satellite imagery. download maps to dji smart controller
From the main DJI Fly home screen, tap Profile in the bottom right corner. Tap the Download Icon (the down-pointing arrow)
If you are using a drone compatible with the DJI Fly app (such as the Mini 3/4 Pro or Mavic 3 series), follow these steps to save map data directly to your controller's internal storage or SD card: Open the map and manually scroll and zoom
For older drones like the Mavic 2 Pro or Phantom 4 Pro that use the app, the process is slightly different and relies more on "caching":