# Q2687 - UART & USB sharing problem

**URL:** <https://forum.sierrawireless.com/t/q2687-uart-usb-sharing-problem/4577>\
**Category:** Legacy AirPrime modules\
**Created:** [July 21, 2010, 11:13am UTC](https://forum.sierrawireless.com/t/q2687-uart-usb-sharing-problem/4577 "2010-07-21T11:13:06Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![basavpace](https://avatars.discourse-cdn.com/v4/letter/b/ccd318/32.png) [@basavpace](https://forum.sierrawireless.com/u/basavpace)\
**Post date:** [July 21, 2010, 11:13am UTC](https://forum.sierrawireless.com/t/q2687-uart-usb-sharing-problem/4577/1 "2010-07-21T11:13:06Z")

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Hi All,  
My question is related to Q2687 UART1 & USB sharing, whenever UART1 & USB port cables are connected to system(PC)—USB port responds well so that i can see all the data trasactions through USB port(Hyper terminal), when we remove UART1 cable then, Q2687 USB port will not respond and i use to get message in my PC saying hardware not detected…Please any one help me in resolving the same.

Regards,

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**Author:** ![basavpace](https://avatars.discourse-cdn.com/v4/letter/b/ccd318/32.png) [@basavpace](https://forum.sierrawireless.com/u/basavpace)\
**Post date:** [July 22, 2010, 5:00am UTC](https://forum.sierrawireless.com/t/q2687-uart-usb-sharing-problem/4577/2 "2010-07-22T05:00:16Z")

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Thank you…resolved -🙂

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**Author:** ![awneil](https://avatars.discourse-cdn.com/v4/letter/a/49beb7/32.png) [@awneil](https://forum.sierrawireless.com/u/awneil)\
**Post date:** [July 22, 2010, 5:42am UTC](https://forum.sierrawireless.com/t/q2687-uart-usb-sharing-problem/4577/3 "2010-07-22T05:42:54Z")

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For the benefit of future readers who may have similar poblems, would you care to share how it was resolved

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**Author:** ![basavpace](https://avatars.discourse-cdn.com/v4/letter/b/ccd318/32.png) [@basavpace](https://forum.sierrawireless.com/u/basavpace)\
**Post date:** [August 27, 2010, 11:43am UTC](https://forum.sierrawireless.com/t/q2687-uart-usb-sharing-problem/4577/4 "2010-08-27T11:43:03Z")

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Hi,  
I was an hardware pin connection issue @ our end.