Smartphone User ManualAppendix161TroubleshootingIf you encounter a problem with your Smartphone, review thelist below to try and find your problem. If still having prob-lems, please contact Technical Support or your dealer.Operating ProblemsProblemn My Smartphonescreen is blank.n My Smartphone doesnot make any soundor vibrate when thephone rings or alarmsoccur.n My Smartphoneoperation becomesvery slow.n A battery low warningmessage pops up onthe screen.Solution1 Your Smartphone is designedby default to switch to a screensaver. To turn it on press any key.2 Your Smartphone battery may rundown. Charge your Smartphoneimmediately.1 Check the sounds setting bypressing Start → Settings thenSounds.2 Check the Options setting onyour Calendar to see if the evennote reminder is activated.You may open too many programs.To release the operation loadingby pressing Start → Settings →System Management → TaskManager to stop unnecessaryprograms.Plug the AC power to yourSmartphone to charge it.
