Primary question: given a non-rooted 4.2.2 device which has second user added and used for awhile, is there any way to backup or otherwise safe the application's data of that second (or third etc.) user? I would like to have backup of application's data only, like what produced by
adb backup. Full backup is fine if you also include information on how to eventually extract the application's data. Software procedure that destroy the system is acceptable as long as the application's data of second user's can be saved, so rooting the device is fine if you let me know how to do it with the application's data of second user intact.
I have try backing it up using
adb backup but I don't see any data from the second user in it.
Additional question: I also want to restore a backup into second user of another device. It seems rooting the device will be the best way, right? Or there is another way?
More case specific information: I have a non-rooted Asus MeMO Pad HD 7 running 4.2.2 with second user setup and used, but now have cracked screen and other issues. I have replacement device a Dell Venue 7 running 4.4.3, but because of different capability, I want to setup the later device with the 2 accounts swapped, i.e. 1st account of the MeMO Pad HD 7 will become second user in the Venue 7 and vice versa.