| 1.Confirm whether have display screen error? ☆Refer to the "Display icon default" guide. |
| 2.Confirm if the device is on its first battery discharge. ☆Please charge and discharge 2~3 complete cycles to restore battery capacity. |
| 3.Confirm whether brush roller or debris channel are clogged? ☆Clean the brush roller and debris channel with cleaning tool. |
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