The phone only has 1.5GB of internal SD card and expects you to add your own external SD card. Which is fine except just about everything favours using the small internal card instead of the large external one. The android folder where the obb files go, .android_secure where apps moved to sd go, external data downloads for apps. So 1.5GB won't last you long!
You can however swap which card Android thinks is the internal and external. So mine now thinks it has 32GB of internal SD space and 1.5GB external and uses the 32GB for everything.
To do this, first of all you need root.
Then download this file: http://blade.windows...vold.emmc.fstab (right click the link and use 'save as')
Copy it to your phones SD card
Now using a root file explorer go to /system/etc and rename the file vold.emmc.fstab as a backup in case you ever want to revert this swap
Using your file explorer, copy or move the file from your sd card into /system/etc
A CWM installer to do this for you:
WARNING: This is best done on a clean phone. Or at least make sure no apps have been moved to the sd card.
Edited by targetbsp, 31 October 2013 - 08:12 AM.