Learn how to use encrypt on your Samsung Galaxy Tab 3. To require a numeric PIN or password to decrypt your tablet each time you power it on or encrypt the data on your SD card each time it is connected:
Note: Make sure your battery is charged more than 80 percent.
Note
This guide will work on all Samsung Galaxy Tabs; including Samsung Galaxy Tab 3 7.0, Samsung Galaxy Tab 3 8.0 and Samsung Galaxy Tab 3 10.1.