Azure-docs: COM port issue

Created on 5 Jun 2018  Â·  3Comments  Â·  Source: MicrosoftDocs/azure-docs

I'm sure I've missed something, as I've had this working before, but when I try and run the device-upload task, no matter what settings I apply I'm always getting an access denied error on COM4 followed by "config_connect_string: Config IoT Hub device connection string failed: Opening COM4: Access denied" Any/all assistance gladly received!


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cxp iot-husvc product-issue triaged

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Hello @Flashjunky I hit the same error as you when the Serial Monitor is already opened. Please make sure that the Serial Monitor is disconnected when running task device-upload. Make sure the symbol is as shown below, if you see a cross it means that the serial port is already opened (click it to disconnect).

image

Let me know how it went? :)

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Hello @Flashjunky I hit the same error as you when the Serial Monitor is already opened. Please make sure that the Serial Monitor is disconnected when running task device-upload. Make sure the symbol is as shown below, if you see a cross it means that the serial port is already opened (click it to disconnect).

image

Let me know how it went? :)

OMG! Worked first time - thank you!!!

You are very welcome @Flashjunky :)! I am now closing this issue. Thank you for posting your questions.

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