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Support Nucleus Nano II FAQ

Motor/Handle Firmware Upgrade Troubleshooting Last modified 09/22/23

# Issue Problem Solution
1 Staying at 2% Motor does not enter the upgrade mode Re-enter upgrade mode by disconnecting the motor’s power, holding the function button and reconnecting power to the motor through USB Port 1
2 Staying at 4% Motor has failed to enter upgrade mode Re-enter upgrade mode (restart handwheel controller, press upgrade button again)
3 Staying at 8% Failed to download program Re-enter upgrade mode by disconnecting the motor’s power, holding the function button and reconnecting power to the motor through USB Port 1 (restart handwheel controller, press upgrade button again)
4 Staying in the range of 9% to 99% Failed to upgrade program Re-enter upgrade mode by disconnecting the motor’s power, holding the function button and reconnecting power to the motor through USB Port 1 (restart handwheel controller, press upgrade button again)
5 Motor does not light up or flash a green light when powered on Motor-S has no program or the program download failed Upgrade Motor-S again
6 Motor flashes a red light when powered on Motor-M program download failed Upgrade Motor-M again
7 Motor lights up with a green light when powered on Program upgrade for Motor-M and Motor-S failed Upgrade Motor-S or Motor-M again
8 Motor upgrades slowly Poor wireless communication Upgrade Motor again
9 Staying at 100% Upgrade completed After restarting the motor, check if the lights are the correct colors (a single press of the button can switch colors between purple, green, blue, and yellow)

Upgrade Considerations

1. Method to enter motor upgrade mode: disconnect the motor’s power, keep the button pressed, and power motor through USB port 1
2. During the upgrade process, if the motor loses power and is then re-powered to continue the upgrade, it will result in a failure of the upgrade in most cases.
3. During the upgrade process, only one motor can be upgraded at a time. Attempting to upgrade two motors simultaneously will generally result in a failure.
4. For later versions (after version 230726, excluding 230726), if you face issues with motor upgrades involving serial numbers 1, 2, 3, or 4, just click the motor upgrade button again. No need to restart the hand wheel controller.

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