https://community.sony.com.mk/t5/xperia-archive/xperia-m-restart-problem-is-solved/m-p/3114014#M296831 My xperia m dual was purchased by me 7 days ago. It is getting restarted as soon as dual sim is activated Tue, 08 Apr 2014 06:23:26 GMT Ishaan 2014-04-08T06:23:26Z https://community.sony.com.mk/t5/xperia-archive/xperia-m-restart-problem-is-solved/m-p/3114013#M296830 if your Xperia m restart due to use of headphone during walkman,FM,camera then following is solution<BR /><BR />1)update your phone to latest 15.1.C.1.17 ,this update is just 26mb when update via update via update app in your mobile<BR /><BR />if this problem still not solved then do following<BR />2) ask Sony service center to replace PCB(MAIN BOARD) this will definitely solve your problem Sat, 28 Sep 2013 14:05:46 GMT https://community.sony.com.mk/t5/xperia-archive/xperia-m-restart-problem-is-solved/m-p/3114013#M296830 kartikmandavia 2013-09-28T14:05:46Z https://community.sony.com.mk/t5/xperia-archive/xperia-m-restart-problem-is-solved/m-p/3114014#M296831 My xperia m dual was purchased by me 7 days ago. It is getting restarted as soon as dual sim is activated Tue, 08 Apr 2014 06:23:26 GMT https://community.sony.com.mk/t5/xperia-archive/xperia-m-restart-problem-is-solved/m-p/3114014#M296831 Ishaan 2014-04-08T06:23:26Z