How to transfer the data from my current sd-card to my new sd-card? I got my Samsung Galaxy J3 crown in December and put my previous 64 GB card in it and used it for about 4 months. Then I got a 128 GB card and put it in my phone. 

I am unsure how to transfer everything from the old to the new card especially because the default download location is there. I cant find it in the settings and really need some help.
If you have a PC and an USB SD-card reader I would do the following:


Unmount/eject the old SD-card (or simply power down the Android phone)
Place it into the USB SD-card reader and connect it to your PC
Copy all the files using the Explorer or a similar file manager to a folder on your hard disk
Eject/unmount the USB SD-card reader
Replace the old SD-card with the new SD-card
Connect the USB SD-card reader with the new SD-card inserted to your PC
Copy all the files from the folder on your hard disk to the new SD-card
Eject/unmount the USB SD-card reader
Place the new SD-card in your Android phone


If something goes wrong you can still switch back to your old SD-card and you can start another try.