Samsung SGH-S307 User Manual

Contents

Solving Problems120The phone starts beeping and“**Warning** Low Battery” flashes onthe display• The battery is insufficiently charged. Replace thebattery and recharge it.The audio quality of the call is poor• Check the signal strength indicator on the display( ); the number of bars indicates the signalstrength from strong ( ) to weak ( ).• Try moving the phone slightly or moving closer toa window if you are in a building.No number is dialed when you recall aPhonebook entry• Check that the number has been stored correctly,by using the Phonebook Search feature.• Re-store the number, 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 Samsung after-sales service.121Access CodesThere are several access codes that are used byyour phone and its SIM card. These codes help youprotect the phone against unauthorized use.When requested for any of the codes explainedbelow, enter the appropriate code (displayed asasterisks) and press the OK soft key. If you make amistake, press the key until the incorrect digitis cleared and then continue entering the correctcode.The access codes, except for the PUK and PUK2codes can be changed using Security menuoptions (Menu 4.6). See page 84 for furtherdetails.Important! Avoid using access codes resemblingemergency numbers, such as 911, sothat you do not dial an emergencynumber accidentally.Phone PasswordThe Phone Lock feature uses the phone password toprotect your phone against unauthorised use. Thephone password is supplied with the phone and ispreset to “00000000” at the factory.To Seeactivate/deactivatethe Phone Lockfeaturepage 85 (Menu 4.6.3).change the phonepasswordpage 85 (Menu 4.6.4).