Ok...So i felt a little brave and started trying the code 1791 and 753 on the sat nav...It was cool at first but then at the end when i wanted to get out of the black diagnostic screen...I couldn't. I followed all instructions online from here: http://www.disco3.co.uk/forum/topic12736.htmlScroll to second page for the black screen I am talking about...I am now stuck on the last picture with all the altitude and coordinates...I switched off my ignition and then switched my ignition back on again. Can someone please help me...I am stumped as a don't know what...I don't wnat to bring the car back to the stealers and get my wallet raped because of my stupidity...

 

just turn the car off and let it power down it will reset itself about 5-10 min.

 

Thanks mate Imma go try now ! Fingers crossed!

 

Few...It worked! Thanks! What a relief...lol its all in my head I guess...lol

 

lol yeah man dont worry it always happens when you enter that screen, that screen is used to see if nav mic input is correct and if gps is working properly as your moving.