Samsung SGH-T879ZBBTMB - Manual (Page 284)

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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 Market
application because it comes from an “Unknown
source”, enabling this option corrects this issue.
Credential Storage
This option allows certain applications to access secure
certificates and other credentials. Certificates and
credentials can be installed to the SD card and password
protected.
1. Press ➔ and then tap Settings ➔ Security.
2. Tap Trusted credentials to display only trusted CA
certificates. A check mark displayed next to the feature
indicates secure credentials.