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Please check the robot's charging contacts for any foreign objects or dust. If so, clean them and try again. Also, check if the metal springs on the charging contacts are stuck.
Alternatively, remove the robot from the charging dock and try charging again, checking whether you hear the "Charging Started" voice prompt.
If this still doesn't work, please reset the robot to factory settings.
If the above steps don't resolve your issue, please contact our customer service department for further assistance. | 
