129128Reference InformationAccess 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 PUK2 codes)can be changed using the Security Settings menuoption. See page 95 for further details.Phone PasswordThe phone password can be set to avoid unauthoriseduse of the phone. The default password supplied withthe phone is 0000, but you are advised to change itbefore you start using your phone. Keep the new codesecret and in a safe place, separate from the phone.If you key in an incorrect password five times insuccession, the phone will not accept the correct codefor the next five minutes.SSoollvviinngg PPrroobblleemmssThe phone starts beeping and “**Warning** BatteryLow” flashes on the display• The battery is insufficiently charged. Replace thebattery and recharge it or connect the travel adapter.The audio quality of the call is poor• Check the signal strength indicator on the display ( );the number of bars indicates the signal strength fromstrong ( ) to weak ( ).• Try moving the phone slightly or moving closer to awindow if you are in a building.No number is dialled when you recall a phonebookentry• Check that the numbers have been stored correctly,by using the Phonebook Search feature.• Re-store them, if necessary.If the above guidelines do not help 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.