https://community.sony.lt/t5/xperia-archive/back-button-not-responding/m-p/3327047#M450548 <P>Do you have any battery savers,task killers?</P> Wed, 24 Dec 2014 09:46:28 GMT _alexdon_ 2014-12-24T09:46:28Z https://community.sony.lt/t5/xperia-archive/back-button-not-responding/m-p/3327046#M450547 Hi, I'm frequently having a problem with the back button on all apps - it just stops responding &amp; I have to repeatedly press the home button until the app closes. I then have to start again on whatever I was typing when I get back into the app. This is pretty frustrating &amp; has only been happening since I downloaded the latest system upgrade. Please can you tell me how to fix it? Thanks Wed, 24 Dec 2014 08:57:19 GMT https://community.sony.lt/t5/xperia-archive/back-button-not-responding/m-p/3327046#M450547 jecca123 2014-12-24T08:57:19Z https://community.sony.lt/t5/xperia-archive/back-button-not-responding/m-p/3327047#M450548 <P>Do you have any battery savers,task killers?</P> Wed, 24 Dec 2014 09:46:28 GMT https://community.sony.lt/t5/xperia-archive/back-button-not-responding/m-p/3327047#M450548 _alexdon_ 2014-12-24T09:46:28Z https://community.sony.lt/t5/xperia-archive/back-button-not-responding/m-p/3327048#M450549 Does this happen if you boot on safe mode? Wed, 24 Dec 2014 19:11:51 GMT https://community.sony.lt/t5/xperia-archive/back-button-not-responding/m-p/3327048#M450549 Phy 2014-12-24T19:11:51Z https://community.sony.lt/t5/xperia-archive/back-button-not-responding/m-p/3327049#M450550 How to boot on safe mode.<BR /><BR /><A href="http://talk.sonymobile.com/t5/FAQ/How-to-boot-your-phone-into-safe-mode/m-p/348008#U348008" target="_blank">http://talk.sonymobile.com/t5/FAQ/How-to-boot-your-phone-into-safe-mode/m-p/348008#U348008</A><BR /> Wed, 24 Dec 2014 19:16:15 GMT https://community.sony.lt/t5/xperia-archive/back-button-not-responding/m-p/3327049#M450550 Phy 2014-12-24T19:16:15Z