Hello this is a Cool and Fast Trick to change your Device's Internal Card ..
This helps to store more game data as games now a day are near 2gb..so the trick is so simple you need:
Root Explorer(Link Below)
A bit Usable Mind
So first start root explorer and allow from SuperUser..Now Click on "SYSTEM" Folder
Then Hit "etc" Folder and look for "Vold.Fstab"
Open it as Text
Now Edit These Lines:
dev_mount_sdcard/mnt/sdcard ..Now change mnt/sdcard to mnt/ext sd
dev_mount_sdcard/mnt/sdcard.. change the mnt/ext sd to mnt/sdcard
Now Hit back and save changes..reebot and you are done..THIS TICK MAY NOT WORK FOR SOME DEVICES
Root Explorer Click Here To Download