# How to unlock uart

**URL:** <https://forums.digi.com/t/how-to-unlock-uart/17611>\
**Category:** XBee & XBee Gateway\
**Tags:** uart, xbee\
**Created:** [October 28, 2016, 10:42am UTC](https://forums.digi.com/t/how-to-unlock-uart/17611 "2016-10-28T10:42:57Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![KSMLink](https://avatars.discourse-cdn.com/v4/letter/k/ecccb3/32.png) [@KSMLink](https://forums.digi.com/u/KSMLink)\
**Post date:** [October 28, 2016, 10:42am UTC](https://forums.digi.com/t/how-to-unlock-uart/17611/1 "2016-10-28T10:42:57Z")

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I figured my XBee was bricked and tried to update my XBee firmware using a Sparkfun USB explorer, and I got this message \>\>File ‘xb24\_15\_4\_10ee.ehx2’ appears to be corrupt, its size is too small. Please contact support\<\< Please what do I do?

I checked the release notes for my current firmware and was informed that Tx at the wrong Baud rate could cause ‘uart’ to lockup. I don’t know what to do, I got the shield just yesterday and tried to figure it out.

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**Author:** ![asgm](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.digi.com/asgm/32/3688_2.png) [@asgm](https://forums.digi.com/u/asgm)\
**Post date:** [November 7, 2016, 2:34am UTC](https://forums.digi.com/t/how-to-unlock-uart/17611/2 "2016-11-07T02:34:45Z")

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This error message appears to be related to XCTU software’s library and not pointing to any UART issue.

I suggest you to either manually download correct FW file from Digi website and replace it in library or reinstall XCTU to overcome this issue.

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**Author:** ![Hisheight](https://avatars.discourse-cdn.com/v4/letter/h/2acd7d/32.png) [@Hisheight](https://forums.digi.com/u/Hisheight)\
**Post date:** [November 29, 2016, 3:43pm UTC](https://forums.digi.com/t/how-to-unlock-uart/17611/3 "2016-11-29T15:43:39Z")

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asgm thanks for answering. gonna try what you recommended