https://community.sony.rs/t5/xperia-archive/phone-won-t-sleep/m-p/3362930#M473354 It could be an app causing this issue, boot on safe mode, see if you experience the same problem.<BR /><BR />How to boot on&nbsp;safe mode.<BR /><A target="_blank" href="http://talk.sonymobile.com/t5/FAQ/How-to-boot-your-phone-into-safe-mode/m-p/348008#U348008">http://talk.sonymobile.com/t5/FAQ/How-to-boot-your-phone-into-safe-mode/m-p/348008#U348008</A> Tue, 21 Apr 2015 22:01:54 GMT Phy 2015-04-21T22:01:54Z https://community.sony.rs/t5/xperia-archive/phone-won-t-sleep/m-p/3362929#M473353 <P>Have just updated to lollipop on my Z2.</P><P>But now the phone's backlight stays on unless I press the power button.</P><P>Sleep mode is set to 30 seconds.</P><P>Have turned smart backlight control off to no avail.</P><P>Have had to turn off all notifications because of accidental key presses etc</P><P>Any solution to this?</P> Tue, 21 Apr 2015 21:14:19 GMT https://community.sony.rs/t5/xperia-archive/phone-won-t-sleep/m-p/3362929#M473353 grunty 2015-04-21T21:14:19Z https://community.sony.rs/t5/xperia-archive/phone-won-t-sleep/m-p/3362930#M473354 It could be an app causing this issue, boot on safe mode, see if you experience the same problem.<BR /><BR />How to boot on&nbsp;safe mode.<BR /><A target="_blank" href="http://talk.sonymobile.com/t5/FAQ/How-to-boot-your-phone-into-safe-mode/m-p/348008#U348008">http://talk.sonymobile.com/t5/FAQ/How-to-boot-your-phone-into-safe-mode/m-p/348008#U348008</A> Tue, 21 Apr 2015 22:01:54 GMT https://community.sony.rs/t5/xperia-archive/phone-won-t-sleep/m-p/3362930#M473354 Phy 2015-04-21T22:01:54Z