Enable Encryption on Android Devices
- From the Apps Screen, tap the Settings icon.
- Tap the More tab.
- Scroll down and tap the Security icon.
This brings up the options shown in this figure.
- Tap the Encrypt Device option.
This brings up the screen shown in the figure.
As the screen says, have your password ready, the battery at 80 percent or higher, keep your device plugged in, and set aside an hour or more when you don't need to use your phone.