GPS does work on the North Pole. Or at least it did the last time I tried.
OK. You’re from Finland. I actually thought I remember Finland was a country that would sometimes have problems because of its northern latitude. I was almost certain that I remember reading that since the orbits of the satellites have a pretty low inclination of 55 degrees. It was a challenge to get the requisite 4 satellites above the horizon (especially above 75degrees north latitude) simultaneously and not have a really low HDOP. It would be possible as times (I thought I remember) to not be able to get any satellite fix at all sometimes. Did you ever have any problems either in Finland or the North pole getting a fix?
KR