I attempted to connect to nefmoto, no problems there. Thought I would try to read the flash just because. But when I went to read the ECU, it said unable to verify layout. I was using the 29F800BB layout as well. Not sure what that's about. Car is a 2001 US spec Audi S4 2.7T. Using layouts that were downloaded with nefmoto. How can I fix this? Any suggestions would be greatly appreciated. Thank you.

Sent from my SM-G973U using Tapatalk

Just continue reading, nothing to worry about.
You can always use 29F800BB layout for reading, worst case is the 512kb flash is duplicated in a 1024kb file.
You can also open up the ECU and see the model yourself.

I'd recommend studying this forum further as all your questions were answered before

post silly questions in noob section.. use search first.. your quest for knowledge will never be a successful one without asking questions.