Using VEFlash to upgrade FW on a 19x series Multiplus - FW version incompatibility question

Q&A and troubleshooting
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1

First Post, Hi people ! :slight_smile: Did read and search but no topics cover my Q:

When I try to upgrade the current FW version 1912159 on my “1912140.HEX” Multiplus 24/3000/70
to “1959159” with VEFlash , I immediately get the warning: This file might be incompatible with your device, unless you entered a code etc..
I’m pretty sure I have the right file from the right directory Victron Professional

Is this warning correct ? It looks rather scary but also not logical, correct chip, same naming convention, just a higher FW build number.
Also, would be interesting if there is a changelog available for the versions.

My setup is working fine. I’m just about to reconfigure for lifepo and ignore A/C shore power under a certain voltage and investigated and found (much) newer FW.

2

The first 4 numbers must be identical.
If the lable on the CPU says 1912140 than you need the FW file 1912159 or 1912209.

3

Thanks Matthias !
I get it now, my chip only supports 1 FW from the 19xxxx series which is 1912159 (as my chip starts with 1912xxx on the sticker on the chip, and the only FW that starts with 1912 on the victron site is 1912159.
I thought the 19 indicated the chip, and all versions should work on it. This clears it, and as I see, there is no other 19x series FW for this chip version.