Hi Kev
I agree with you about using the older version but I don't have it
My firmware version is S8ECU-8015-F
So I would need a mapping soft version 8015-xx and I only have the 8021-x/100

To upgrade the ECU I need a file in .ecu that is not present and my CD.
And finally, I not even sure that my hardware (COSV05) will even support an upgrade to the 8021 or your 8019.

Could you check if you've a file S8UP8019.ECU on your CD?
If so I'll also ask you to check your hardware version and if we've the same then I'll be ready to kill anyone you'll ask me to kill to get these files!!

Maybe we can continue this chat on my topic to avoid messing with mikedaf2

https://passionford.com/forum/viewtopic.php?t=310358