All I've ever done is copy the contents of my old card to my PC and then putting it onto my new card and putting that card into the phone. It should be simple, just might take allot of time depending on how much information you're transferring.

 

I migrated from a 16 to a 32 gb class 10 and as suggested it was simple. I copied the data from the old one to the computer.
(In windows I made sure hidden files were shown)

Then I copied it on to the new one.

Popped it in and it worked seamlessly.

 

Just curious as most program does not appear to let you specify a different path to store the data in the external sc. Ex the built in camera app. What do you air on there?

 

Where did you get your card? I've been thinking of getting one.

I screwed mine all up when I moved it from my Samsung to this phone. I've wanted to move up to a 32 and try to fix some of this when I moved everything.