# The robot shut down for the first time, and now it won't start up again

**URL:** <https://forum.hello-robot.com/t/the-robot-shut-down-for-the-first-time-and-now-it-wont-start-up-again/1372>\
**Category:** Ask\
**Created:** [July 29, 2025, 12:49am UTC](https://forum.hello-robot.com/t/the-robot-shut-down-for-the-first-time-and-now-it-wont-start-up-again/1372 "2025-07-29T00:49:24Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![wyn15811017](https://avatars.discourse-cdn.com/v4/letter/w/35a633/32.png) [@wyn15811017](https://forum.hello-robot.com/u/wyn15811017)\
**Post date:** [July 29, 2025, 12:49am UTC](https://forum.hello-robot.com/t/the-robot-shut-down-for-the-first-time-and-now-it-wont-start-up-again/1372/1 "2025-07-29T00:49:24Z")

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The robot won’t start up after the first shutdown. We can hear the Ubuntu startup sound when pressing the start button, but there is no display on the monitor, and the LiDAR doesn’t run. We have tried to use another monitor but no change.

Thank you.  
Yanan

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**Author:** ![shehab](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.hello-robot.com/shehab/32/936_2.png) [@shehab](https://forum.hello-robot.com/u/shehab)\
**Post date:** [July 29, 2025, 4:12pm UTC](https://forum.hello-robot.com/t/the-robot-shut-down-for-the-first-time-and-now-it-wont-start-up-again/1372/2 "2025-07-29T16:12:01Z")

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Hi Yanan, thank you for your post!

It could be an HDMI port issue, what is the serial number of your robot?

Please feel free to reply in an email to [support@hello-robot.com](mailto:support@hello-robot.com).

Thanks and have a great day!

Best,  
Shehab