Currently running version 3.70 ~27 large. I am trying to update to 3.80 ~27. The update seems successful but the cerbo will not boot to the new version. I can see it under stored firmware and I have the option to boot the new version, but it just defaults back to 3.70. The file system is not full,…

if you don’t have any significant problem with the older version, then don’t do the update…

I don’t quite see how that is a solution Mike. There are regular updates to the firmware of multiple devices and I would like to stay current.

Victron policy is don’t update a working system… Unless there is a particular feature that an update affects, and you need that feature, then once a system is operating in a stable condition, then it’s best left alone. Whilst this is not a solution as to why your firmware won’t boot, it is a work-…

@If you are doing dev work you should maybe consider the latest stable production version 3.73 or large and not beta versions? I also found exceptionally a powerdown as opposed to reboot is required after an upgrade.

Had the same problem and for me the solutions was: [image] Cerbo update, from V3.72 to V3.73 does NOT work DIY Please remove the SD-card first and reboot before updating. Cheers :slight_smile:

Thank you, removing the SD card fixed the issue, upgrade complete~!

So, interestingly, the update did work after removing the SD card, but then after a few reboots it seems to have reverted back to the previous version. I will play around some more when I get back to the boat.

Cerbo firmware update Success - will not boot new firmware

Q&A and troubleshooting

Jurgen_Pflug 12 June 2026 05:31 6

Had the same problem and for me the solutions was:

Cheers

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Cerbo firmware update Success - will not boot new firmware

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