Looking at the connectors on your motor, I think you have an updated version of the M400 with CanBus communication, in which case, it is not poss. to adjust settings. I believe this is a move by Bafang to increase it's European market by creating a tamperproof, closed system to compete with the likes of Bosch, Yamaha etc. The new M600 motor is the same.I pulled the cable as far as I could, but I cannot get the connector out
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