Can't read/write a rom file

[Kamal]

Hi, I'm trying to tune a Nissan Pulsar GTiR, while trying to read or write a file, i get an error saying : Invalid address, check correct address file, Cannot address A223;
Please Help

[Matt]

What revision is the board reporting?

Have you opened the RNN14 address file? That address should not be modified on the Nistune board which is why the error is being reported