# Cerbo update to V3.66 fails

**URL:** <https://community.victronenergy.com/t/cerbo-update-to-v3-66-fails/45698>\
**Category:** Q&A and troubleshooting\
**Tags:** gx\_device, beginner, cerbo\_gx, vrm\
**Created:** [20 September 2025 08:41 UTC](https://community.victronenergy.com/t/cerbo-update-to-v3-66-fails/45698 "2025-09-20T08:41:57Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![FredW](https://avatars.discourse-cdn.com/v4/letter/f/b2d939/32.png) [@FredW](https://community.victronenergy.com/u/FredW)\
**Post date:** [20 September 2025 08:41 UTC](https://community.victronenergy.com/t/cerbo-update-to-v3-66-fails/45698/1 "2025-09-20T08:41:57Z")

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I am trying to update my Cerbo GX to version 3.66 via VRM. This fails with error message (see attachment). Also with remote console the update is not succesful. Any insights on remediation?

 ![Scherm­afbeelding 2025-09-20 om 10.34.21](https://europe1.discourse-cdn.com/victron/original/3X/1/6/163ad6c86988861904868999ee52bbdb7d65568e.png)

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**Author:** ![FredW](https://avatars.discourse-cdn.com/v4/letter/f/b2d939/32.png) [@FredW](https://community.victronenergy.com/u/FredW)\
**Post date:** [20 September 2025 08:53 UTC](https://community.victronenergy.com/t/cerbo-update-to-v3-66-fails/45698/2 "2025-09-20T08:53:01Z")

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Solved. I was able to remotely restart the GX via VRM. Then ran the update via VRM as well and all went through.

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**Author:** ![system](https://europe1.discourse-cdn.com/victron/original/1X/21a9a7b5db7c6339715f993568736a7053199995.png) [@system](https://community.victronenergy.com/u/system)\
**Post date:** [4 October 2025 08:53 UTC](https://community.victronenergy.com/t/cerbo-update-to-v3-66-fails/45698/3 "2025-10-04T08:53:22Z")

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Closed on 4 October 2025 08:53 UTC

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