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•  Encrypt phone: Encrypt your data on the phone to protect 
your privacy. See Personalizing – Protecting Your Phone 
With Encryption. 
•  Encrypt SD card: Check this option to require a numeric 
PIN or password to decrypt your microSD card each time 
you power on your phone. 
NOTE: If you encrypt your microSD card, all the data in the 
card will be erased. 
•  Make passwords visible: Display passwords as you enter 
them. 
•  Device administrators: View or deactivate apps you have 
authorized to be device administrators. 
•  Unknown sources: Check this option to permit installation 
of apps from sources other than the Play Store. 
•  Trusted credentials: Display trusted CA certificates. 
•  Install from SD card: Install certificates from the memory 
card. 
•  Clear credentials: Delete all certificates. 
Backup and Reset 
•  Back up my data: Back up app data, Wi-Fi passwords, and 
other settings to Google servers after you sign in to your 
Google account. 
•  Automatic restore: Restore previously backed up settings 
and data when you reinstall an app.