https://community.sony.rs/t5/m-series/my-xperia-will-not-power-up/m-p/3486313#M14998 This is strange, I would recommend a software repair but you said your computer doesn't detect your phone. Hey Fred1225, when you connect your phone to the charger, does the charging/notification light come on?<BR /> Wed, 20 Jul 2016 15:14:38 GMT edmonddantes182 2016-07-20T15:14:38Z https://community.sony.rs/t5/m-series/my-xperia-will-not-power-up/m-p/3486310#M14995 <P>I powerd down my xperia (because it had low charge) then went to put it on charge. I left it on charge all night then went to use it in the morning and it would not power on. I have left it to charge for another day and night and will still not power on. Every time I go to turn it on it flashes with three red lights.&nbsp;</P><P>I have attempted to use a software update on the sony companion but it has not worked as my xperia will not connect to my laptop.</P><P>Does anyone know how to fix this!!!!</P> Wed, 20 Jul 2016 15:01:46 GMT https://community.sony.rs/t5/m-series/my-xperia-will-not-power-up/m-p/3486310#M14995 Fred1225 2016-07-20T15:01:46Z https://community.sony.rs/t5/m-series/my-xperia-will-not-power-up/m-p/3486311#M14996 Hey Fred1225, in case you haven't already done this, try holding both the power button and Up on the volume rocker for about ten seconds. Wed, 20 Jul 2016 15:08:06 GMT https://community.sony.rs/t5/m-series/my-xperia-will-not-power-up/m-p/3486311#M14996 edmonddantes182 2016-07-20T15:08:06Z https://community.sony.rs/t5/m-series/my-xperia-will-not-power-up/m-p/3486312#M14997 <P>this still does not work .</P><P>After doing this i have tried to power up my phone but it still will not power up??</P> Wed, 20 Jul 2016 15:09:40 GMT https://community.sony.rs/t5/m-series/my-xperia-will-not-power-up/m-p/3486312#M14997 Fred1225 2016-07-20T15:09:40Z https://community.sony.rs/t5/m-series/my-xperia-will-not-power-up/m-p/3486313#M14998 This is strange, I would recommend a software repair but you said your computer doesn't detect your phone. Hey Fred1225, when you connect your phone to the charger, does the charging/notification light come on?<BR /> Wed, 20 Jul 2016 15:14:38 GMT https://community.sony.rs/t5/m-series/my-xperia-will-not-power-up/m-p/3486313#M14998 edmonddantes182 2016-07-20T15:14:38Z