LMAO, a firewall!!! 😃 rofl..
That would require a HUGE amount of work in the code 🙂. Interesting that they would invest such an amount of time to implement this and then not be able to actually map the ECU.
Oh, and if there really is a firewall there, how is he going to "wipe" the ECU?? Bit difficult to do when you can't program it. All sounds a bit dodgey to me.
Mark