Samsung SEG-I717RWAATT - Manual (Page 116)

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and security.
2. Tap the Disable USB debugging mode checkbox to create a
checkmark. This is necessary when device encryption is
enabled.
Set up SIM card lock
Prevent another user from using your SIM card to make
unauthorized calls or from accessing information stored on your
SIM card by protecting the information using a PIN code.
When enabled, your phone will ask for a PIN number each time
you use the phone. Using this option you can also change your
SIM PIN number.
1. From the Home screen, tap ➔ Settings ➔ Location
and security.
2. Tap Set up SIM card lock.
3. Tap Lock SIM card, enter your SIM PIN code, then tap OK.
Note: You must activate Lock SIM card before you can change your SIM PIN
code.
4. Tap Change SIM PIN.
5. Enter your old SIM PIN code and tap OK.
6. Enter your new SIM PIN code and tap OK.
7. Re-type your new SIM PIN code and tap OK.
Visible passwords
When you create a phone password you can also configure the
phone to display the password as you type it instead of using an
asterisk (*).
1. From the Home screen, tap ➔ Settings ➔ Location
and security.
2. Tap Visible passwords to create a checkmark and activate
this feature.
Set up/Change password
Use this option to set up your password when one is first required
or change your current password.
1. From the Home screen, tap ➔ Settings ➔ Location
and security ➔ Set up/Change password.
2. Enter a new password and tap Confirm.
3. Enter the new password again and tap Confirm.
Select device administrators
The Device Administration feature allows you to select one or
more administration applications that control your device for
security purposes (for example, if your phone is lost of stolen).