Settings
Password for factory data reset
You can require a password to reset your device to factory default settings. Options may vary by service provider.
◌From Settings, tap 
Security and privacy > Other security settings > Set up/change password and enter a password.
Set up SIM card lock
You can set up a PIN to lock your SIM card, which prevents unauthorized use of your SIM card if someone attempts to use it in another device. Options may vary by service provider.
◌From Settings, tap 
Security and privacy > Other security settings > Set up SIM card lock and follow the prompts.
•Tap Lock SIM card to turn on the feature.
•Tap Change SIM card PIN to create a new PIN.
View passwords
You can have characters displayed briefly in password fields as you type them.
◌From Settings, tap 
Security and privacy > Other security settings > Make passwords visible to turn on the feature.
Device administration
You can authorize security features and apps to have administrative access to your device.
1.From Settings, tap 
Security and privacy > Other security settings > Device admin apps.
2.Tap an option to turn it on as a device administrator.
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