Yes, the DJI Phantom 4 RTK remote controller is equipped with a built-in micro-SD card slot.
While the micro-SD card in the aircraft itself is primarily used for saving captured photos, videos, and raw RTK data, the card slot on the controller serves a few specific purposes:
Importing/Exporting Missions: You can load .MIS mission files onto the micro-SD card and easily import them directly into the DJI GS RTK app on your controller.
Firmware Updates: It allows you to quickly load firmware updates onto the controller when needed.
Log Storage: It can be used for saving and backing up controller system logs or operation data.
To link your DJI Phantom 4 RTK (P4R) to its remote controller, turn on both devices and launch the DJI GS RTK app. Navigate to Menu > RC Settings > Linking. Next, use a paperclip or pen to press the link button on the side of the drone until it turns solid green to complete the process.
Detailed Step-by-Step Instructions
Power On: Turn on both the remote controller and the Phantom 4 RTK aircraft.
Launch the App: Open the DJI GS RTK app on your remote controller's screen and tap Fly to enter the camera view.
Enter Linking Mode:
Tap the three dots in the top-right corner to open Settings.
Tap on the RC Icon to open the controller settings.
Ensure your pairing mode is set to Single Device.
Tap on Linking. The remote controller will start beeping and searching for the aircraft.
Link the Aircraft: Locate the circular link button on the side of the Phantom 4 RTK drone (located near the SD card slot). Use a paperclip or pen to press and hold the button for about two seconds until its indicator light turns solid green.
Confirm: The beeping on your controller will stop, and a "Aircraft Linked" or "Linking Complete" prompt will appear on your screen.