user1610

But what exactly do you need to do with the testmode.key. What I can make out from the post is that the this Key file needs to be in the root of the SD. But I'm not certain if the rest of the upgrade files need to be there as well, or that the key file is the only file on the SD card. And the upgrade needs to be loaded from a second sd card. 

Ok thank you.

Can one get the cards to run on the AVIC-F20BT tell me how I? Can I pick up the CARDINFO.cif and VERINFO.DAT from the 2013er version , does it work?