Samsung SM-S901 - Password for factory data reset; Set up SIM card lock; View passwords; Device administration

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Settings
Password for factory data reset
You can require a password to reset your device to factory default settings. Options
may vary by carrier.
◌
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 carrier.
◌
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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