Duh ! I will close this stoopid post, I had not used seriously a smartphone since several years and did not realize anymore how sensitive to location Gps services are. I tried only in 2 places in my home and both where unsuitable. When I got out in the air, Gps started to work. So it is working, really. I did a stroll this morning and it updated its position. I have still to get my hands to another brand of smartphone on Android to compare with the Fairphone 5 under UT to see how well it is working.