Hi all from an iPhone user trying to solve problems for my son and his XperiaJ. He says that he has sh1t memory (typical) and when trying to install/update an app the phone said not enough memory.... he has only added about <10 apps. His Xperia also has a 32Gb external SD card as well as internal 2Gb. But he hasn't managed to t/f music to it yet. When I go to Setting/storage ... it seems to list the details of three types of memory. Phone Memory: Total Space 754Mb. Apps 633Mb Available 90.55Mb Internal Storage: Total Space 2.01Gb. Apps 162Mb ... others... Available 1.59Gb SD Card: Total Space 29.71Gb. Available 29.50Gb Can someone explain the meaning of the "Phone memory" and the "Internal Memory" ? Where do the apps go when they are downloaded ? and why would this phone say insufficient memory ? I don't get it. Tks.