Hi, wait a minute before blaming me… (nothing personal, here 
)
I have received the smartphone with Android 12 and I do not see how this might influence the Sailfish OS installation but probably because I am not acknoledged about this kind of hardware/system.
Moreover, in the installation instructions there is the suggestion of to upgrade 11 from 10 but nothing about downgrading 12 to 11. There is also no any warning about, like
- DO NOT INSTALL SAILFISH UNLESS bla bla.
Is there a restore procedure that bring the smartphone to Andorid 12 so I can sell it back or to Android 11 in such a way I can start the installation of Sailfish OS again?
By the way: I am not the only one that had problem with GPS… 
and Jolla is not going to sell a lot of licenses with the “it is your fault” attitude!
P.S.: 30gg [30days] license would also allow to activate the “developer options”