I have a Multiplus II that i recently updated the firmware to V552. Ever since I have had nothing but problems. The latest is the internal transfer switch (advice on this would be appreciated) keeps switching from shore passthru to inverting. It keeps switching on and off, although shore power is not. Is there a tutorial on how to roll back the firmware to a previous version?
Same process for manually loading firmware, just be prepared to reconfigure the system.
Manual firmware updates or using veflash is well documented.
Where is the older firmware files? I cannot find them on the victron website.
You can find them all on Victron Professional, where, contrary to the name, you can create an account as an end-user.
I am a member of that site for years. I have never done a roll back so I’m trying to decipher which version I would need
They first 4 numbers are the product ID of your multi, which you can find in the menu under your multi/devices/product ID (0x2629 in my case). The last 3 numbers are the version number. You probably have to go to the archive to find it…
If you have made updates from your computer before you might find the *.vcf files in your download folder.
But i would prefer going forward to 555
I found that out. 555 was not an option in victron connect, but I did notice that file.
On ve.bus units i only work with mk3 and a pc, using the classic tools.