55FAQ and troubleshootingThis section lists frequently asked questions that may arise during the use of yourtablet, and gives easy answers and solutions to these questions.Aspect Question AnswerAudio Why is there nosound coming fromthe device?If the headset is plugged into the device,the speaker is automatically shut off.Disconnect the headset.Check that the device volume setting isnot muted.Check that the volume control is not atits lowest setting.Multimedia files Why can’t I view mypicture files?You may be trying to view an image thatis not supported. Refer to “Supportedformats” on page 43 for moreinformation.Why can’t I view myvideo files?You may be trying to view a video that isnot supported. Refer to “Multimedia” onpage 60 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 60 for more information.Systeminformation andperformanceHow do I check theOS version of mydevice?Tap APPS > Settings > About tablet tocheck the OS version (Kernel/buildnumber) and other hardware andsoftware information.Where can I find myserial number ID?Tap APPS > Settings > About tablet >Device Information. You can also lookon the underside of the card slot cover.See “Card slot cover” on page 7.Power I couldn’t turn on thedevice.The battery power may be depleted.Recharge the device. Refer to “Chargingyour tablet“ on page 9 for moreinformation.Storage How do I checkmemory status?To check storage status, go to Settings> Storage.