Exclamation [Q] Gps signal

The last few weeks when i start the gps it loses it's signal for 3-5 minutes and then regaines it without losing it again. Does it need firmware restoring?
Here are also the pics
Attached Thumbnails
Click image for larger version

Name:	Screenshot_2014-05-10-15-17-30.png
Views:	26
Size:	46.0 KB
ID:	2745822   Click image for larger version

Name:	Screenshot_2014-05-10-15-17-16.png
Views:	25
Size:	56.4 KB
ID:	2745823   Click image for larger version

Name:	Screenshot_2014-05-10-15-13-39.png
Views:	26
Size:	56.6 KB
ID:	2745824