So I've done A LOT of research on here trying to figure out if others are having this same problem and although I see some similarities with the z150 and others, I'm not sure that the fixes are the same. This error code came on out of nowhere. I never tried to hack it, or update anything! I just turned the car on one day and my radio hasn't worked since. I believe that the files are corrupt though I'm not sure how that could happen. I've tried unplugging the battery, I also downloaded the Test mode thing and loaded it onto my SD card but when i popped it in, the radio did not go into test mode