Samsung SGH-T539ABBTMB - Manual (Page 142)

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Lock applications
With this feature you can lock your applications which provide access to information
such as Call records, Phonebook, Messages, Sounds, Images, Videos, Music, Other
files, and the Memory card. Once you lock the contents, you must enter the phone’s
password to access the associated menus.
1. Press the Up or Down Navigation key to select an item to lock.
2. Press the key to place a check mark on the selected item.
• To lock all of the contents, select Lock all.
3. Highlight the previously selected item and press the key to remove a check
mark.
4. Press the Save soft key to lock the marked items.
5. Enter a password and press the OK soft key or the key.
FDN mode
FDN (Fixed Dial Number) mode, if supported by your SIM card, allows you to restrict
your outgoing calls to a limited set of phone numbers.
The following options are available:
• Disable: you can call any number.
• Enable: you can only call phone numbers stored in your SIM’s FDN. You must enter
your PIN2. You can obtain your PIN2 from your service provider.
Change PIN2
The Change PIN2 feature allows you to change your current PIN2 to a new one. You
must enter the current PIN2 before you can specify a new one. Once you enter a new
PIN2, you are asked to confirm the new PIN by entering it again.
Note: Not all SIM cards have a PIN2. If your SIM card does not, this menu does not display.
Software Update
This option lets you download Over-The-Air phone software Updates from T-Mobile
that improve the performance of your phone. Only the internal software is updated.
No phonebook entries or other information saved to your phone are deleted.
Important!: Make sure your phone battery is fully charged or connect your phone to the Travel Adapter
before selecting this option.
To update your phone’s software: