Thanks Aerial. I uploaded the configuration.xml and the download link shown was that for 5.6/5.6. It is clearly mentioned in the installation document that ver 6.0 is meant for 2012 units only. Some users who have written the contents of their configuration.xml files here, the file clearly doesn't show the car type; maybe that's the reason it shows config error. In my case it says car type Linea and of course the code is different. I did try to update to 6.0 (jugaad), but config:error threw the jugaad out. FAQ is very clear, If you have Image ID in system settings, you are using a 2012 unit and are eligible to upgrade to ver 6.0, else, don't worry be happy.