ashs1
Padawan
If there is a new update for xperia J, you can update your phone with update service software ( Update service - Sony Smartphones (UK) )
To check whether your phone has the latest software, compare the build number on this site with the build number on your phone ( settings>about>build number. ( Xperia )
To check whether your phone has the latest software, compare the build number on this site with the build number on your phone ( settings>about>build number. ( Xperia )