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BlackBerry REX41GW User Manual

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SIM card
Depending on your wireless service provider and wireless network, your BlackBerry smartphone might not use a SIM card.
Protect your SIM card with a PIN code
To get your SIM card PIN code, contact your wireless service provider.
1.
On the home screen or in a folder, click the Options icon.
2.
Click Device > Advanced System Settings > SIM Card.
3.
Press the 
  key > Enable Security. 
4.
Type your SIM card PIN code. If you exceed the number of allowed attempts to enter the SIM card PIN code, your SIM 
card does not function.
5.
Press the 
  key on the keyboard. 
Change a SIM card PIN code
1.
On the home screen or in a folder, click the Options icon.
2.
Click Device > Advanced System Settings > SIM Card.
 •  To change the PIN code that protects your SIM card, press the 
  key > Change PIN code.
 •  To change the PIN code for fixed dialing on your SIM card, press the 
  key > Change PIN2 code.
Memory cleaning
About memory cleaning
Memory cleaning is designed to delete sensitive data from the temporary memory on your BlackBerry smartphone. 
Examples of sensitive data include sensitive data in the cache for the key store browser, unencrypted data from email 
messages, LDAP authentication passwords, and data from certificate and key searches.
When memory cleaning is turned on, the memory cleaning application is designed to delete sensitive data automatically in 
the following situations:
• When you insert your smartphone in a holster
• When you do not use your smartphone for a specified period of time
• When you synchronize with your computer
• When you change the time or the time zone for your smartphone
• When you lock your smartphone
User Guide
Security
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