# Robot Fail Update black screen

**URL:** <https://forum.universal-robots.com/t/robot-fail-update-black-screen/24044>\
**Category:** Technical Questions\
**Created:** [September 24, 2022, 10:19pm UTC](https://forum.universal-robots.com/t/robot-fail-update-black-screen/24044 "2022-09-24T22:19:23Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![luis.juarez](https://avatars.discourse-cdn.com/v4/letter/l/a183cd/32.png) [@luis.juarez](https://forum.universal-robots.com/u/luis.juarez)\
**Post date:** [September 24, 2022, 10:19pm UTC](https://forum.universal-robots.com/t/robot-fail-update-black-screen/24044/1 "2022-09-24T22:19:23Z")

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Hi,

We try to change the teach pendant from a UR10e (was broken), but didn´t start (error C281A7)

For the message C281A7 the seuggestion is:

1. Reboot → Didn’t work
2. Update, for update I checked and the upgrade must be for steps originally is 5.1 but when Itried to upgrade to 5.2 fatal error an now an only a UR image when start later black screen with 3 dots.

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**Author:** ![anon7130720](https://avatars.discourse-cdn.com/v4/letter/a/54ee81/32.png) [@anon7130720](https://forum.universal-robots.com/u/anon7130720)\
**Post date:** [April 4, 2023, 7:20pm UTC](https://forum.universal-robots.com/t/robot-fail-update-black-screen/24044/2 "2023-04-04T19:20:38Z")

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I am having the same issue now. Were you able to find anything that worked?

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**Author:** ![luis.juarez](https://avatars.discourse-cdn.com/v4/letter/l/a183cd/32.png) [@luis.juarez](https://forum.universal-robots.com/u/luis.juarez)\
**Post date:** [April 10, 2023, 5:07pm UTC](https://forum.universal-robots.com/t/robot-fail-update-black-screen/24044/3 "2023-04-10T17:07:36Z")

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Hi, We send the robot to the service, aparently have a damage in one axe and when we update is not possible finish it, because the installation in not 100% OK