Unknown Sources
Enable installation of non-Google Play applications.
1. From a Home screen, tap
2. Tap Lock screen and security >
Unknown sources to enable this option.
Warning: Enabling installation of third-party applications
can cause your device and personal data to be more
vulnerable to attacks by unknown sources.
Protect Encrypted Data
Require a numeric PIN or password to decrypt your
device each time you power it on.
1. From a Home screen, tap
2. Tap Lock screen and security > Protect
encrypted data.
3. Tap Encrypt phone and follow the prompts to
encrypt all data on your device.
Settings
Apps >
Settings.
Apps >
Settings.
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Other Security Settings
SIM Card Lock
Require both your SIM card PIN and your ordinary
screen lock type when unlocking the device.
1. From a Home screen, tap
2. Tap Lock screen and security > Other security
settings > Set up SIM card lock and follow the
prompts.
3. Tap Lock SIM card to enable the feature.
4. Tap Change SIM card PIN to create a new PIN.
View Passwords
Display password characters briefly as you type them.
1. From a Home screen, tap
2. Tap Lock screen and security > Other security
settings > Make passwords visible to turn the
feature on.
Apps >
Settings.
Apps >
Settings.
Lock Screen and Security