122Solving Problems123Solving Problems“No service,” “Network failure” or“Not done” is displayed• The network connection was lost. You may bein a weak signal area (in a tunnel orsurrounded by buildings). Move and try again.• You are trying to access an option for whichyou have not taken out a subscription withyour service provider. Contact the serviceprovider for further details.You have entered a number but it wasnot dialled• Have you pressed the key?• Are you accessing the right cellular network?• You may have set an outgoing call barringoption.Your correspondent cannot reach you• Is your phone switched on (the keypressed for more than one second)?• Are you accessing the right cellular network?• You may have set an incoming call barringoption.Your correspondent cannot hear youspeaking• Have you switched off the microphone?• Are you holding the phone close enough toyour mouth? The microphone is located at thebottom of the phone.The phone starts beeping and“**Warning** Low Battery” flashes onthe display• The battery is insufficiently charged. Replacethe battery and recharge it.The audio quality of the call is poor• Check the signal strength indicator on thedisplay ( ); the number of bars indicatesthe signal strength from strong ( ) to weak( ).• Try moving the phone slightly or moving closerto a window if you are in a building.No number is dialled when you recall aPhonebook entry• Check that the number has been storedcorrectly, by using the Phonebook Searchfeature.• Re-store the number, if necessary.If the above guidelines do not help you tosolve the 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.