Hi Phil,
Did the controller stop working immediately after the attempted flash update?
If so, are you sure that you selected the correct MP5 file instead of the SMP5 file which is for use with the Smart Pie?
Have you tried to reflash the controller using the correct sequence
and the correct file?
If so, was it successful, or did it fail to complete the flash process correctly?
Can you connect to the controller using the USB Programming cable and PC software to check voltage settings etc.?
The battery gauge LEDs on the throttle control are not fed from the controller, they are powered directly from the battery and should come on when the battery is turned on
(assuming the throttle has not been disconnected or the LEDs have not blown). If there was an unexpected short circuit in the controller, the battery's
BMS should automatically cut the power completely, in which case, the LEDs would not be able to light up.
Provided the controller is not in a short circuit state, then the fault could be caused by either a poor connection somewhere in the battery wiring, or faulty switch contacts inside the key switch.
Check for battery voltage at the battery plug connectors
while the controller is connected and the battery switched on.
If there is no sign of battery voltage, check all connections on the battery cables and then try wiggling the key off and on slightly to see if battery voltage appears, and check if the throttle LEDs light up
(or they might just flash momentarily when the controller clicks).
Please let us know the results of these checks.
Alan