Hi @smarin and welcome to the Mudita Community Forum. Cograts in your first post!
Getting a first time GPS fix can take quite some time, this is a known issue.
First of all make sure location sharing is enabled, at least for the weather app, in Settings.
Go outside and make sure you have at least 270⁰ clear free view at the sky.
Open the weather app, settings (top left), default location (which is Warsaw by default) and hit the visor icon to obtain the current location, instead of Warsaw. Unfortunately, this can take anywhere upto 15 minutes. The clearer the view at the sky, the better. Once you have pressed the visor icon, refresh until your location is shown. That should work, but again it’s slow. If that doesn’t work contact [email protected], there’s always a small possibility you have received faulty unit. Once it has it’s first GPS fix, it will continue updating periodically when you’re outside. The Mudita Kompakt has no aGPS (yet, hopefully that will be added in a future release) , so it won’t work indoors. Make sure you give location permissions in settings for each app you wish to use with GPS.