dji Thumb Controller User Manual page 19

Ensure that your computer is connected to the internet
Close all antivirus programs and network firewalls
Ensure that the device is turned on before beginning the
update process
Do not disconnect the USB cable until the update is complete
If the Thumb Controller fails to update, follow the steps below:
1. Press and hold the override button.
2. Use the USB cable to connect the Thumb Controller to the computer.
3. Now, release the override button and wait for the connection to
be established.
4. Click the "Update" button after the Thumb Controller has been
successfully connected to the Assistant. The Thumb Controller
will be operate normally after the update is complete.
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