Yes, ok. There is a real software issue.
As reported more in details in the HW tread.
Hardware repair gives a better reception, for sure (more sat. signals, higher quality).
As I began tu use my daily phone’s GPS in real life, it needed yesterday > 20 minutes in perfect conditions to get a fix.
@Jolla, we can now be sure that there is something to find on the software side.
Hardware cannot be put in cause alone.
EDIT February 10:
Today 20 min. test, same window, clear sky, custom On On Off, Jolla positioning pack.
* = HW reapired.
Devices 1* & 4, SingleSIM, 4.3.0.12 licence:
fix in < 1 minute
Devices 2* and 3, DualSIM, 4.3.0.12 free:
No fix within 20 minutes
Like said previously several times by other users,
Time to fix seems to increase as the OS installation gets older.
The fix time difference between Single and Dual devices is surprising.
First time I note this difference.