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Yes I agree with you. These things should be standardised. It is a miracle I didn't blow up the controller. If you compare it with a KT controller the cable order is the same but the cable colours are different. On their defense, yellow makes more sense for power than blue for me.

I figured out what's going on. The cable colours are different. The data cables are blue and green. The yellow cable is connected to vcc in the circuit board. When I jumped yellow and red the controller started working. The display doesn't work at all. I have attached a few pics of the...

I'm agreeing with you, nothing is making sense. I will just connect the power cables of the display (not the data or blue cables) to the battery and check it it switches on. Then I'll remove the controller from the bike (which I was trying to avoid) and test with my old Voilamart controller...

Yes I did all that, I measured the voltage when the red and blue were bridged and I got 52V. I disconnected everything from the controller, except the battery, the motor, and the throttle. I also checked the voltage for the lights connection in the controller when I bridged the red and blue...

Thank you again for your reply. I bridged the red and blue with the display disconnected and nothing happened, then I bridged the yellow and green and nothing happened, then I disconnected the battery and shorted the red and black to discharge capacitors and nothing happened. I have the...

Thank you vfr400 for your detailed reply. The battery is ok, I haven't tested the controller yet with the recommendations. However there's only one thing I didn't get clear: I guess you're talking about shorting the red and black in the display side while disconnected from the controller...

Thank you for your reply Neal, I'll have a look to the mosfets if the display is blown.

Hi, my ebike stopped working a couple of days ago. The display is a S866 and the controller is a Brainpower. I wasn't doing anything weird, the PAS was in 3 out of 9, I was actually going down the hill and suddenly the controller switched off. I'm trying to figure out what broke, the display...