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Motor not working after extrusion kit upgrade

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I've recently upgraded my UM2 to UM2+ with the extrusion upgrade kit. Updated firmware.

Everything seemed to go fine, but now the Y-axis motor won't run. I thought I must have damaged the wire, but I tested by plugging in the old feeder motor (now left over from the upgrade), with no movement there either.

What happens is that the head won't home prior to running the bed leveling program; it homes in the X axis only, then it gives the "X or Y axis switch broken" error. But the switch works fine because if I manually home the head, the bed leveling program runs, but without any Y-axis movement.

The board and the connector look fine, physically. Please, help me diagnose the problem. Electrical is not my forte.

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hmm did you correctly upgrade with the right firmware. Ensure that CURA is set to your plus model, and perform a firmware upgrade. If that doesnt work. try a previous different version .. they are currently two work CURA with Plus profiles inside which is the 15.04.4 and 15.04.5

Failing that, try also doing a factory reset.

Perhaps what you could do also is to switch the connection of your X and your Y around to test, to see if it the motor is working or if it something to do with the board?

That will help you isolate what is wrong.

Note that you would have to hit the limit switch manually to stop it from moving.

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