APM 2.0not recognized via USB on Win 8.1

Hi Supporters,

i´ve no glue how to get a right connection on Windows 8.1 with my APM 2.0.

With Win 7 it was working realy fine but my Slate has crashed and could not be repaired. 

So now i´ve a Win 8.1 Toshiba Satellit but i could´nt get it working with the APM via USB.

Only with the XBee it´s possible to get it working.

Any glue how to fix it ?

Greetz from Germany

Gerhard

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Replies

  • already tried this to install all my Arduinos, only the apm will not be recognized, maybe defect ?

    Tried different cable, NO Solution.

    Board is Working via XBee aand transmitting all Data. Only USB Connection is not working

    Thanks for replying. 

    • For Windows 8 you have to disable driver signing as the drivers are signed by someone that Windows does not trust. Advanced options 7 I think and reboot. 

      In device manager is the comport yellow ? If not what comport # do you see ?

      • i already disabled the signature for installing and have already installed the drivers.

        The device occured only One Time (yellow), i´ve deleted it but it will not occure again as Mega2560.

        All other Atmel´s (Nano, uno usf.) are working well and can be programmed.

        Only APM is not occuring again now.

        Regards

        Gerhard

        • Try uninstalling and reinstalling MP

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