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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.
Factory data reset: Reset your phone to factory default
settings. All your personal data from the phone’s internal
storage will be erased. You can also erase the data on the