Sharp 550SH User Guide - Page 121
Function Lock, Contacts Lock, Showing Secret Data, Changing the Handset Code, M 12-7-5, Settings - unlock code
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Function Lock (M 12-7-5) By setting this option on, all the functions of your phone will be locked until the correct handset code is entered. "Settings" → "Phone Settings" → "Locks" → "Function Lock" 1. Enter your handset code. For details on the handset code, see "Changing the Handset Code". To Turn Off the Function Lock Enter your handset code in standby to turn the Function Lock off. Contacts Lock (M 12-7-6) The Contacts Lock function prevents unauthorised use of your Contacts List. "Settings" → "Phone Settings" → "Locks" → "Contacts Lock" 1. Select "On" to lock or "Off" to unlock. 2. Enter your handset code. For details on the handset code, see "Changing the Handset Code". Showing Secret Data (M 12-7-7) By setting this option on, the hidden data can be displayed. "Settings" → "Phone Settings" → "Locks" → "Show Secret Data" 1. Select "On" to display or "Off" to hide. 2. Enter your handset code when you select "On". For details on the handset code, see "Changing the Handset Code". Changing the Handset Code (M 12-7-8) The default handset code is "9999". "Settings" → "Phone Settings" → "Locks" → "Change Handset Code" 1. Enter the old handset code. 2. Enter a new handset code. 3. Enter the new handset code again. 120 Settings