[maintech]

I am getting a tech to rollback the OS to Kitkat. The Samsung forum members caution owners re, rollback, several bricked their units after the recent OS uprade to Lollipop. A numbers of other apps were also troubled by the upgrade, also battery life was seriously affected but hopefully the rollback will return my unit to the earlier state. 
I understand that I will need to 'long press' the notification to upgrade again (Samsung is persistent) to decline future reminders. Keeping the Wifi connection 'Off' is not a viable solution.
A quick question, can I delete the original 'free Mobilesheets' without losing data. The pro version is the only one I use. 
I'll post my result as soon as it is completed.