I have four Samsung Galaxy Tab 2 10.2 3G in a project where I lend tablets during a course. I have a shared Google mail address in these tablets. Before each time I'll lend them I restore them to factory mode and then install the common Google mail address. In two of the tablets with android 4.0.4 loaded all previously installed apps automatically are restored, but in the other two tablets that have been updated to android 4.1.2 this does not happen. I have to manually download and install each app individually. Why is this and how can I solve it?
