Samsung Galaxy S4 MicroSD Card Replacement

Insert our opening tool in the recess to the left of the back-facing camera, in the area around power button.

Take the back case by the corner nearest the recess, lift it and remove it from the phone.

To press the microSD card into its slot, use the flat end of the spudger or a fingernail. Press it slightly deeper, until you hear the click sound.

Release the card after the click and it will pop out of its slot.

Remove the microSD card.

To reassemble, push the microSD card into the slot until it clicks in its place.