hi guys ,

i've a little problem with the car sound in topic.

I've changed my battery and it asks my the password ,.. and i don't have it.

how can i upload a new firmware or hack this radio ? 

thanks in advance for support 

http://avic411.com/index.php?/topic/32929-x930bt-password-recovery/&do=findComment&comment=240249

Read post #151 in that thread and then do the instructions in post #1

many thanks