DoronGalambos, Mar 21, 2015 : 99% sure this is the correct place to write this. I've been looking for a fix to this and couldn't find any. This is the best fix I could come up with. Lots of people (including myself) have a GPS issue with the OPO. From what I noticed, this occurs because some programs are using the GPS and forcing it to not work with other apps. (I could be wrong, as this is just what I've noticed, not 100% proven). In order to fix this, I downloaded a GPS testing app called GPS Test. I noticed that it could not fixate my location because it wasn't able to use any of the satellites in the sky. However, after rebooting and immediately opening the GPS Test app, I would find 20+ satellites and connect to 10+, fixing the issue. So as long as you do that, you're in the clear. As you can see, my Runtastic is now working with a green GPS signal.