The robot cannot update the firmware.

Causes of Firmware Update Failure:
1. Low battery. The firmware cannot be updated if the battery level is lower than 15%.
2. Weak Wi-Fi signal or out of the Wi-Fi range. If your robot is located in a weak Wi-Fi signal area or out of the Wi-Fi range, it may cause an update failure. Make sure both your robot and the dock/base are in a good Wi-Fi range.