I'm trying to swap the SD cards on my Irulu R17 tablet. Running KitKat 4.4.2 and is rooted. I've tried "Root External 2 Internal" and a few other options with no luck. Have also browsed through the Root trying to find the "vold/fstab" folder for editing, but it's nowhere to be found that I can see.

How do I go about swapping the two SD cards so I can take advantage of the 32GB external SD card I have mounted on the tablet?