Is there a tutorial explaining Internal storage-Phone storage-SD card ? I ,more or less, understand the use of SD card ..but what is the difference between Internal storage-Phone storage ? In my Jelly bean Internal storage 50% available,Phone storage %100 available..why isn't there a balance between Internal-phone storage ? My default write disk is SD card,however when I install programs from Gplay some of them will never install-move to SD card..is there a method of installing everything to SD card ? ( I don't want to Root)