[dasi]

After region change coding, I get KAFAS 800AD0: No enabling code

Everything in the car seems to work like assisted driving etc. I have not tried driving at night yet.

The exact same KAFAS4 f5сs are still all showing as accepted after the changes:

AppID 432(0x1B0) - HBA High-Beam assi5тдnt
AppID 333(0x14D) - LDW Lane deрдятure warning
AppID 334(0x14E) - SLI Speed Limit Info
AppID 336(0x150) - High assist premium

The coding changes were minimal. I just VO coded it with a slightly modified FA, only changing 3 minor regional codes. The SVT Toolbox screenshot attached shows the coding differences.

Has anybody seen something like this before? Any ideas what to try? Maybe disconnect and reconnect the car battery?

It seems something similar happened here: https://cartechnology.co.uk/showthread.php?tid=72255

Maybe I should VO code it again with the original FA and see if it goes away, then see how many of the parameters I can FDL code without the fault coming back?

There's really clear answer in your post. You answered yourself with changes between FA. Hint, it's WWA