German External USB ISO Keyboard: some keys mapped/identified wrong

This is such a silly problem, and haunting me since years! Can someone fix that please! But I may just open a Tech support ticket.

The keyboard is a Razer RZ03-00800 (although it does not matter, same with other german ISO keyboards from Logitech, etc.) which has THE SAME LAYOUT as the macbook pro it is connected with.

1. I erase /Library/Preferences/com.apple.keyboardtype.plist and reboot
2. The keyboard assistant pops up, and I press the < key beside Shift. ISO button is selected, done.
3. The plist is updated like this:

<dict>

<key>514-5426-0</key>

<integer>41</integer>

</dict>

THE KEYBOARD IS WRONG:

The keys for < and ^ are swapped! Every time no way to fix!

I can edit the plist file, but how? There is no useful info in it.

Other keyboards I connected previously had 40 or 43 as integer value.

This keyboard (514-5426-0) also registered with Integer 43 in the previous plist???