Transferring data from SD Card to Internal Memory and vice versa
There is no automatic way that you can do this. However if you really want to do it, you will have to connect both memory cards to computer and transfer the files manually by selecting all. And if you don't have computer you cant do by app, es explorer which is freely available in play store this transfer by first placing the files in your sd card and then insert the new sd card and if the system prompts you about the storage full, then you have what you want.