I purchased from Yose a 24" front wheel kit for my Scout tricycle, Generally the kit is ok and components are reasonable. However I seem to be getting no help from Alice at their service centre and after a message :"May I trouble you to send a video to the following address? I need our engineers to confirm. thank you. " realised this is a bot not, yam yam from Walsall The motor works fine on the thumb lever, however I have no odometer function working for speed or distance on the C500 display. I have replaced the Juliet pas sensor which is the 12 magnet integratal type with no result. This means there is no auto operation of the motor so I now suspect the Lishui controller may have a fault. It seems to function on other circuits. Any advice please, would one of the £10 e bike test boxes help?