Start by removing the back cover.

Now take the battery, sim card, and sd card out.

Remove the eight screws from the back housing.

Now we will pry the back housing from the phone.

I started at the top left corner and worked my way around to the right top corner.

Now that there is some seperation start at the bottom and lift with your fingers to pop the back housing off the phone.

Before you try to remove the logic board, find the ribbon cable connections and pry them loose.

Time to remove the logic board. There are no screws to remove here. The logic board is held in place by adhesive.

Start at the bottom left corner and insert a flat pry tool and work it in under the logic board to try and release the adhesive.

work your way around the the area where the battery terminals are and try to get some separation.

There are two connections that tie the logic boards together. They should pop loose by sliding a pry tool under the large logic board right next to the vibrator motor (on the small logic board).

With the two connections loose, lift up from that location and remove the larger logic board.

Time to remove the small logic board. This L shaped piece is held in place with a little adhesive and a few little plastic clips.

When you get close to the volume ribbon cable leave your pry tool under the logic board and grab some tweezers to pick the volume assembly out of its slot.

After the volume assembly is out, finish prying out the small logic board.

There you have it. I would show more like lcd/digitizer teardown but I do not have all the supplies at the moment. You now can replace a part inside the phone if need be.