How in the h e double hockey sticks do you update smart controller to new firmware? I keep getting failed message. Says to clear space on mobile device.
Updated fine on my phone, but no luck with high dollar brick i got called the smart controller......should have called it the dumb controller,  cause it aint too smart.

Hello, there. Sorry for your inconvenience. Would you please use DJI Assistant 2 for Mavic to upgrade the smart controller？
Steps:
1. Connect your smart controller to a PC using a USB Type-C cable with the controller powered off.
2. Power on the remote controller.
3. Launch DJI Assistant 2, and log in using a DJI account. Here is the link: https://www.dji.com/downloads/products/smart-controller
4. Click GRC, and then the firmware update button on the left side.
5. Select and confirm the firmware version.
6. DJI Assistant 2 will download and update the firmware automatically.
7. The remote controller will restart after the update.