backup - backing up android device using adb -


i attempting copy applications , data android tablet1 android tablet2. both tablets has same specification , same type.

my approach use command 

 adb backup -f my_backup.ab -apk -shared -all

to files tablet1 use command: 

 adb restore my_backup.ab

to restore(basically copy) backed files tablet2.

the restore works fine, problem backup not backup applications data on device.

do have idea why might happening?

thanks response , time.

execute on computer 

adb backup -apk -shared -all

this should create backup.ab of apps, os, , data. restore, execute following.

adb restore backup.ab

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