for what its worth, i was having major problems with my GPS too. I tried everything; changing servers, flashing, double flashing, installing troubleshooting apps, you name it. Finally in a fit of exasperation I decided to take the device apart and see if it was hardware related. BOOM! Problem sorted! The issue with my unit was that the copper contact to the GPS unit was not correctly in place. A simple repositioning and the GPS works like a dream now. Took me about 20 minutes altogether to fix something thats been bugging me for ages.