57TROUBLESHOOTINGPossible problems and troubleshooting steps for your phone are described below.Check the troubleshooting steps before contacting your Authorized Samsung Reseller.GeneralTrouble SolutionThe bell does not ring or the ringsound is too small.- Check if the phone is set to vibration mode.- Adjust the volume at [MENU] Æ [4. Volume/Ring]Æ [1. Incoming calls] Æ [3. Ring Volume].The battery is not empty but thephone does not turn on.- Take the battery out and put it in again, and turn thephone on.- Take the battery out, clean the charging phones of thebattery. Then put the battery back in, and turn thephone on.Voices echo during a call. - Press the [Volume] button and adjust the volume- Move to another area.Calls are disconnected frequently. Move to another area since the frequency is unstable.The phone operates abnormally ordoes not operate at all.Take the battery out and insert it again, and turn thephone on again.Power/InstallationTrouble SolutionThe lamp on the charger flashes yellow. - Take the battery out from the charger and put thebattery in again.- If the yellow light continues to flash, clean thecharging phones of the charger.Phone registration failure. - Check if the power of the system or AP is on andreregister the phone.- Move to a serviceable area of the system or AP andreregister the phone.ScreenTrouble SolutionThe LCD does not light up. Battery is discharged. Recharge the battery and turnthe phone on again.The indicator appears on screenand calls cannot be made.- Your phone may not be registered on the system.Use the phone after registration.- Move to an area where service can be provided.- Check if the power of the system or AP is on.