S9 The left front brush can turn and the right front brush cant turn

S9 The left front brush can turn and the right front brush can\'t turn

S9 The right front brush cant sweep the floor,

S9 The right front brush can\'t sweep the floor,,The left front brush can\'t sweep the floor

S9 Can sweep the ground,but cant move

S9 Can sweep the ground,but can\'t move

S9 The meter is displayed,can move,but can not sweep the ground

S9 The meter is displayed,can move,but can not sweep the ground

S9 The meter doesnt show,cant walk,cant sweep the floor

S9 The meter doesn\'t show,can\'t walk,can\'t sweep the floor

S2 Turn off the whole car and replace the key switch

S2 Turn off the whole car and replace the key switch

S2 Can sweep the ground,but cant move

S2 Can sweep the ground,but can\'t move

S2 Can move forward but cant turn

S2 Can move forward but can\'t turn

S2 Can move forward but cant turn

S2 Can move forward but can\'t turn

S2 The brush can be lifted up but not rotated

S2 The brush can be lifted up but not rotated