Samsung SGH-E420 User Manual

Also see for SGH-E420: Service manual User guide

Menu functions Phone settings (Menu 9)71• Set time: specify the length of time whenthe keypad light is used. This option isavailable when Use at custom time in theMode option is selected.Service light (Menu 9.1.7)Use this menu to activate or deactivate the useof the service light on the front of the phone.The service light blinks at regular intervalswhen your network is available.Greeting message (Menu 9.2)Use this menu to enter the greeting that isdisplayed briefly when the phone is switchedon.Language (Menu 9.3)Use this menu to select a language for thedisplay text and text input mode, separately.Security (Menu 9.4)Use this menu to protect the phone againstunauthorised use by managing the severalaccess codes of your phone and SIM card.PIN check (Menu 9.4.1)The 4- to 8-digit PIN (Personal IdentificationNumber) protects your SIM card againstunauthorised use. When this feature is enabled,the phone requires your PIN each time it isswitched on.If you enter an incorrect PIN/PIN2 three timesin succession, the SIM card is blocked. Tounblock it, you need to enter your PUK/PUK2(Personal Unblocking Key). The codes aresupplied by your service provider.