Since last week I started with a Pixel 9 Pro and GrapheneOS. It takes a while but in general I can find my way. At the moment I am not getting my location / position determination working. I would like to use Osmand, but I get my position not yet known. Then I tried MagicEarth, but there the same story. The apps don't get through my position. I neatly went through the manuals, but somehow these apps don't get a location. What am I missing? Is there a step-by-step manual?