Sony Ericsson Z550a User Guide - Page 49

If the message Codes do not match appears when you edit your PIN, the new PIN is incorrect. If the message Wrong PIN appears, followed by Old PIN: you entered your old PIN by mistake. To turn the SIM card lock on or off 1 From stand-by, select } Menu } Settings } General } Locks } SIM lock } Protection and } On or Off. 2 Enter your PIN } OK. Phone lock The phone lock protects the phone against unauthorized use. You can change the phone lock code (0000) to any four- to eight-digit personal code. To unlock the phone If the phone lock is on, enter your code } OK. Automatic phone lock If the phone lock is set to automatic, you only need to enter your phone lock code when you insert a different SIM card. To set the phone lock 1 From stand-by, select } Menu } Settings } General } Locks } Phone lock } Protection and select an option. 2 Enter the phone lock code } OK. To edit your phone lock code From stand-by, select } Menu } Settings } General } Locks } Phone lock } Change code. It is important that you remember your new code. If you forget it, you have to take your phone to your local Sony Ericsson retailer. Code memo Save security codes, such as for credit cards, in the code memo. Set a passcode to open the code memo. Enter a checkword. When you enter your passcode to open the code memo, the checkword is shown for a short time. If the passcode is correct, the correct codes are shown. If you enter the incorrect passcode, the checkword and the codes that are shown are also incorrect. If you have forgotten your passcode you must reset the code memo. More features 47 This is the Internet version of the user's guide. © Print only for private use.