# Can anyone help with an unable to find Comm port issue?

**URL:** <https://community.sparkfun.com/t/can-anyone-help-with-an-unable-to-find-comm-port-issue/66321>\
**Category:** Other Microcontrollers\
**Created:** [August 2, 2025, 4:03pm UTC](https://community.sparkfun.com/t/can-anyone-help-with-an-unable-to-find-comm-port-issue/66321 "2025-08-02T16:03:19Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Jeremy\_Hunter](https://yyz1.discourse-cdn.com/sparkfun/user_avatar/community.sparkfun.com/jeremy_hunter/32/10516_2.png) [@Jeremy\_Hunter](https://community.sparkfun.com/u/Jeremy_Hunter)\
**Post date:** [August 2, 2025, 4:03pm UTC](https://community.sparkfun.com/t/can-anyone-help-with-an-unable-to-find-comm-port-issue/66321/1 "2025-08-02T16:03:19Z")

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I followed all the steps for setting up the SparkFun Pro Micro ( ATmega32U4), but it is unable to find any ports. It just says not connected and I’m not sure where to go from here. Any help is appreciated.  
Ive done this process on my work computer and it works perfectly fine but unable to do it on my personal.

Thanks in advance.

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**Author:** ![brow](https://yyz1.discourse-cdn.com/sparkfun/user_avatar/community.sparkfun.com/brow/32/6116_2.png) [@brow](https://community.sparkfun.com/u/brow)\
**Post date:** [August 4, 2025, 2:12pm UTC](https://community.sparkfun.com/t/can-anyone-help-with-an-unable-to-find-comm-port-issue/66321/2 "2025-08-04T14:12:48Z")

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Is it the same cable as you tried at work? Some USB cables only pass power, no data.

> **[SparkFun Qwiic Pro Micro - USB-C (ATmega32U4)](https://www.sparkfun.com/sparkfun-qwiic-pro-micro-usb-c-atmega32u4.html)**
>
> The SparkFun Qwiic Pro Micro adds a reset button, Qwiic connector, USB-C, and castellated pads to the miniaturized Arduino board!

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**Author:** ![jremington](https://yyz1.discourse-cdn.com/sparkfun/user_avatar/community.sparkfun.com/jremington/32/6595_2.png) [@jremington](https://community.sparkfun.com/u/jremington)\
**Post date:** [August 4, 2025, 2:25pm UTC](https://community.sparkfun.com/t/can-anyone-help-with-an-unable-to-find-comm-port-issue/66321/3 "2025-08-04T14:25:34Z")

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+1 for replacing the USB cable. Charging-only cables are common, and will not work with Arduino.