tried just now with the android folder (it’s the edit i was talking about) but it didn’t help
i also removed appsupport in the brutal way suggested by jolla docs and got no results at all
changing permissions from folder to folder seems to work but should be done for all subfolders too and it’s damn tedious
eg. i didn’t have access to DCIM, now i have it but not for it’s camera subfolder
and i rebbot my phone everynight, so no it’s not the reboot
thank you for you help anyway 
i hope i will be able to solve this very irritating issue…