https://community.sony.pl/t5/xperia-archive/power-off-message/m-p/3306842#M436914 <P>when i turn on my sony xperia Z2 , i receive a black screen with "POWER OFF" button , i don't know what's the use of it exactly , and also when i receive a missed call or when i leave the screen on, it doesn't turn off after a delai please help me&nbsp;</P> Fri, 12 Sep 2014 15:15:00 GMT ganori 2014-09-12T15:15:00Z https://community.sony.pl/t5/xperia-archive/power-off-message/m-p/3306842#M436914 <P>when i turn on my sony xperia Z2 , i receive a black screen with "POWER OFF" button , i don't know what's the use of it exactly , and also when i receive a missed call or when i leave the screen on, it doesn't turn off after a delai please help me&nbsp;</P> Fri, 12 Sep 2014 15:15:00 GMT https://community.sony.pl/t5/xperia-archive/power-off-message/m-p/3306842#M436914 ganori 2014-09-12T15:15:00Z https://community.sony.pl/t5/xperia-archive/power-off-message/m-p/3306843#M436915 <P>Have you done any software changes?</P> Fri, 12 Sep 2014 19:42:03 GMT https://community.sony.pl/t5/xperia-archive/power-off-message/m-p/3306843#M436915 _alexdon_ 2014-09-12T19:42:03Z https://community.sony.pl/t5/xperia-archive/power-off-message/m-p/3306844#M436916 I had a power off message when I had my Xperia Z. It happened when I Flashed an official update to it. Would only display once whenever I did a Factory Reset. This happened for a few updates after and then it never came back. Sat, 13 Sep 2014 19:37:25 GMT https://community.sony.pl/t5/xperia-archive/power-off-message/m-p/3306844#M436916 thequickbrownfo 2014-09-13T19:37:25Z