Samsung SGH-N400 Owner's Manual

Also see for SGH-N400: Service manual

Samsung SGH-N400 Owner's Manual Manual pdf 64 page image

125124SSoollvviinngg PPrroobblleemmssReferenceInformationAccess CodesThere are several access codes that are used by yourphone and its SIM card. These codes help you protectthe phone against unauthorised use.The access codes (except for the PUK and PUK2codes) can be changed using Security menu options.See page 98 for further details.Phone PasswordThe phone password can be set to avoid unauthoriseduse of your phone. The password generally suppliedwith the phone is 0000. You are recommended tochange it before you start using your phone. Keep thenew password secret and in a safe place, separatefrom the phone.PINThe PIN (Personal Identification Number) protectsyour SIM card against unauthorised use. The PIN isusually supplied with the SIM card. When the PINCheck feature is enabled (menu option 5-3-1), the PINis needed each time the phone is switched on.If you key in an incorrect PIN three times insuccession, key in the PUK and press OK. Key in anew PIN and press OK. Key in the new PIN again andpress OK.The audio quality of the call is poor• Check the signal strength indicator in the display( ); the number of bars after it indicates thesignal strength from strong ( ) to weak ( ).• Try moving the phone slightly or moving closer toa window if you are in a building.No number is dialled when you recall aphonebook entry• Check that the numbers have been storedcorrectly, by using the Phonebook Search feature.• Re-store them, if necessary.If the above guidelines do not enable you to solvethe problem, take a note of:• The model and serial numbers of your phone• Your warranty details• A clear description of the problemThen contact your local dealer or SAMSUNGafter-sales service.