Samsung SGH-T699DABTMB - Manual (Page 276)

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To change an existing SIM Card PIN:
1. Tap Change SIM PIN.
2. Enter the old SIM PIN code and tap OK.
3. Enter the new SIM PIN code and tap OK.
4. Re-type the new SIM PIN code and tap OK.
Password Settings
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. Press ➔ and then tap Settings ➔ Security.
2. Tap Make passwords visible to activate this feature.
Device Administration
Activating this feature allows Google to administrate your
phone in a way similar to IT security settings on a corporate
PC. This would be beneficial in the case that your phone was
lost or stolen. The phone could be “deactivated” or
“restricted” (through administration) from a remote location.
1. Press ➔ and then tap Settings ➔ Security.
2. Tap Device administrators to begin configuring this
setting.
3. Select an administrator device and follow the prompts.
Unknown Sources
Before you can download a web application you must enable
the Unknown sources feature (enables downloading).
Developers can use this option to install non-Play Store
applications.
1. Press ➔ and then tap Settings ➔ Security.
2. Tap Unknown sources to active this feature.
Note: If you are notified that you can not download a Play
Store application because it comes from an “Unknown
source”, enabling this option corrects this issue.