ok, thank you so much. I think now I understand everything (hopefully)

Hi @T5-T6-Schnappi

Thank you very much for your help. Before buying any new modules, I removed the headlight and checked the part numbers of the modules I transferred from my original US headlights.

I currently have:
HIR: 31446806
FFM: 31468410
LCS: 31395946

I also tested two different DRL LED boards (9 LED and 10 LED versions), and neither of them worked in the EU headlight.

I also did an important test: I reinstalled my original US headlight with these modules and everything works correctly, including the DRL/Thor Hammer and front indicator. So the modules themselves seem to be functional.

From what I found, 31446806 appears to be a newer replacement/supersession for one of the module numbers you listed.

Do you think my current modules should work with the EU headlights after the correct HCM software reload/initialization?

Or do I actually need to replace them with the older part numbers you listed (31395943 / 31395944 / 31395945 / 31395946) and then perform a software reload?

I'm trying to avoid buying another complete set of modules if my current hardware is already compatible and only needs the correct software.

Thanks again!

I'm adding fault codes also. So the thing is... should I buy correct HIR units (I guess) or can I flash mine via vdash to work with EU headlamps or if not via vdash is it possible to do it via official vida if I'll found someone near my location?

Hey guys, @T5-T6-Schnappi I think I might have the same issue, could you help me with this?
I receive:
HIRL
Sequence Counter Invalid
HIRL
Missing Message
HIRR
Sequence Counter Invalid
HIRR
Missing Message
after moving my original Signal Drive Units (all 4 modules)
(31446806)
to EU headlamps
31353153 / 31446688.

Does this indicateincompatible firmware, module programming required,
or incompatible Signal Drive Units?

Can VDASH reprogram these modules?
I did conversion from US to EU which I thought could convert headlights as well but unfortunately not.... which means I kinda "lost" lots of euros on that worthless action I did.

Thanks in advance!