My Pixhawk 2.4.8 has been working great for months.  

It boots fine, sounds correct, and has the right lights on. 

However, I cannot connect to it via MP.  Have tried: 

        Fresh install of MP and firmware on laptop

        Different computers and ports

        reformatting the SD card

        flashing firmware - getting firmware error

        connecting via telemetry - bought new kit to see if I can circumvent the usb port itself

        hard reset

        manual firmware update using the terminal and running the update directly. Won' t connect via USB. 

       

I did purchase a replacement Pixhawk and it works fine.  

Thinking, that I blew the USB channel but cannot prove it.

Got any ideas on how to do that?  

       

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