When I like to run an external driver, my LEGO hub is driving B driver when driven from PC (Windows 10 app installed).
When I try the same application using a smartphone it works as expected.

Have you encountered a similar situation?

  • 1
    Hi Xawery! I'm sorry but your question is hard to understand, so it probably won't be answered as it is now. Could you please post a concrete error message or a more detailed description of what is happening? A screenshot could be useful too. Or just have someone proofread your question if possible.
    – zovits
    Commented Oct 22, 2019 at 10:11

1 Answer 1


The issue is connected with that Lego stopped supporting and developing Windows application.

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    I was going to post this: the Windows app is out of date and no longer supported. You need to use a phone or tablet or switch to a third-party library. Commented Dec 10, 2019 at 20:37

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