So, with the new phone not shipping with an SD card, i had to use my 16gb card from the D2. When i tried installing some apps i had on the card, i was unable to locate any of the files. At first, i thought they had been deleted, but then after looking at free space on the card, i knew all the files were still on the card. So, long story short, all of your old files will be in /sdcard-ext. i believe this is due to encrypting the card.