Sony Ericsson T18 User Guide - Page 49
Activating the SIM Card Lock, Phone Lock, Full Lock, Autolock, Access, Card Lock, Lock card, Locked
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Activating the SIM Card Lock 1. Scroll to Access, YE S, Card Lock, YE S, Lock card, Y ES . 2. Enter your PIN and press Y ES . The message Locked confirms that the card lock is now activated. Cancelling the SIM Card Lock 1. Scroll to Access, YE S, Card Lock, YE S, Unlock card, Y ES . 2. Enter your PIN and press Y ES . The message Unlocked confirms that the card lock is now cancelled. Note! This only works if your SIM card allows you to cancel the card lock. PHONE LOCK The phone lock protects the phone against unauthorized use if it is stolen. It is not activated when you buy the phone. You can change the default security code 0000 to any three- to eight-digit personalized code. Warning! Do not use the emergency numbers 112 or 999 as your security code. If you do, you will not be able to unlock the phone. Instead, a call will be made to the emergency number. The phone lock security code is also used to reset the phone (master reset). See "Reset" on page 36 The phone lock has two levels: Full Lock and Autolock. Full Lock If the Full Lock is activated, you briefly see the message Phone locked, each time you turn on the phone. The message is followed by the prompt Enter lock code. You then have to enter your code followed by Y ES to use it. Autolock If the Autolock is activated, the message Phone locked and the prompt Enter lock code do not appear until a different SIM card is inserted in the phone. After the security code has been entered correctly, the phone can be used with the new SIM card. You are not asked to enter the security code until the original SIM card or a different SIM card is inserted. To change the security code 1. Scroll to Access, YE S, Phone lock, Y ES , Change code, Y ES . 2. Follow the steps described in "Changing PIN" on page 48. Security for Your Phone and Subscription 49