Ghozt

Ashkaan, you have to install the 5.0 update and then afterword go back and replace the navi.exe file that you modified. You replace it with the testmode software. There is a post in another thread to download the testmode software. you put it on the root level of your SD card and boot the head unit from that. Once in testmode you delete the original navi.exe and paste your modified navi.exe. It took me three tries to get it right.