how to upgrade the NAV600 to a NAV900.

[tucpal]

are you stuck in boot mode screen
don't panic it will be fine to use the car and turn on off etc

you need a good quality disc like verbatim cdr 52x 700md

DOWNLOAD the nav600 900 res file

here is the link to the Nav600 900 res download for the CDR disc

http://www.mediafire.com/download/5un940...us_fix.rar

then download WINZIP

https://www.google.co.uk/url?sa=t&rct=j&...5076,d.bGs

and open the nav600 900 res image file you have downloaded
in your downloads on your pc
and open it with winzip and save it to your desktop

and then use this program to burn the disc
CD burner XP and also burn the disc at the lowest possible speed x1 or under X10
when you open it you will see burn speed option click it press other and click x1 speed
then press browse and press the Nav 600 900 res file you saved on your desktop.

(The windows burner is no good for this it is too fast) .

https://www.google.co.uk/url?sa=t&rct=j&...5076,d.bGs


i do not have any cdr discs vic someone may help you out in this thread.