Hi, dear digeimomo and pionara. I have same problem. I bought my avic-x920bt from USA, but I want to use it in Turkey. So, before not to do a mistake I want to learn right way.
1. I downloaded "firmware" from this page "CNSD-310FM EU 2012" and verinfo.dat, cardinfo.cif from the page of"CNSD-310FM US/CAN 2012"
2. I opened the cardinfo.cif in text editor and replaced "KMQ1S8PF5CUQE7LKUX" with "X07EURX27EURX30EUR"
Am I right?