50FAQ and troubleshootingAppendixFAQ and troubleshootingThis section lists frequently asked questions that may arise during the use ofyour smartphone, and gives easy answers and solutions to these questions.Aspect Question AnswerAudio Why is there no soundcoming from thedevice?If the headset is plugged into the device,the speaker is automatically shut off.Disconnect the headset.Check that the device volume setting is notmuted.Check that the volume control is not at itslowest setting.Multimedia files Why can’t I view mypicture files?You may be trying to view an image that isnot supported. Refer to “Multimedia” onpage 57 for more information.Why can’t I view myvideo files?You may be trying to view a video that isnot supported. Refer to “Multimedia” onpage 57 for more information.Why can’t I play mymusic files?You may be trying to play a file that is notsupported. Refer to “Multimedia” onpage 57 for more information.System informationand performanceHow do I check the OSversion of my device?Tap Menu > Settings > About phone tocheck the OS version (Kernel/build number)and other hardware and softwareinformation.Power I couldn’t turn on thedevice.The battery power may be depleted.Recharge the device. Refer to “Charging thebattery” on page 10 for more information.RAM / ROM How do I check theRAM and ROMmemory status?To check the ROM status, go to Settings >SD card & phone storage.To check RAM status, go to Settings >Applications > Running services.