Nexus 5: GPS stopped working?

I tried different programs: google maps, here, gps status and toolbox, and didnt work since a couple of weeks.

Removing the back cover and cleaning the contacts solve my Nexus 5 GPS problems.
 
Exactly the same for me. The top left corner of the case had popped open, maybe as a result of a drop or other pressure. Once snapped back, the GPS started working again.

Same here! How can so many phones have their corner popped open? Anyway, one more happy customer with this forum :-)