thanks a lot for all your full answers, i’m seeing it more clearly now! And sure this will be usefull for more than me!
I’ve finally made it simple to be prepared, made some app backup for Silence (SMS), K9-Mail and a list of app via F-Droid and manually (i don’t get a lot of them). All the orther important things sync with my cloud.
following your advises, i’ve decided to made it soft for the moment, and waiting to get a way to be rooted to try other solutions. Some automated, with cloud syncing will just be perfect to me!
nobody is speaking about OandBackup, this need root too, but look like it can be automated and select every app you’ll need. I think it’s a good solution in combo with a Folder syncing. Anyway i’ve seen a lot of people using Titanium so i’ll try it too. what you think?
edit : @madbilly i will still not use google tool, speciallly for backup, for sure there is too many informations i don’t want google to have access to! But your complete post i full of tested advises!