BlackBerry 8520 Curve
Read help info
The PIN protects your SIM from unauthorised use. If use of PIN is turned on, it needs to be keyed in when you turn on your phone. Follow these instructions to turn use of PIN on or off.
1. Find "SIM Card"
Press the Menu key.
Scroll to Options and press the Navigation key.
Scroll to Advanced Options and press the Navigation key.
Scroll to SIM Card and press the Navigation key.
2. Turn use of PIN on or off
Press the Menu key.
Scroll to Enable Security or Disable Security (depending on the current setting).
Key in your PIN and press the Navigation key.
3. Exit
Press Disconnect to return to standby mode.
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