I shattered the lcd screen on my coolpix S630. I purchased a new lcd screen for my camera type/style. I now need step by step instructions on how to replace the old lcd with the new lcd.

Hello and welcome to FixYa.
unfortunately I have not taken this camera part myself as I don't own it and it has not come up.

Basically what you need in taking apart a camera, is a set of precision tools, most likely the normal flat heads and philips type of screwdrivers (in very small sizes) will do great. You will also need strong fingernails or a plastic stick / case opening tool to open up the camera carefully once the screws are out.

Without step by step instructions here is what I would do, blindly.

Take note of what screw goes where, write down on paper as you go, make sure you don't drop or loose any of the screws.

I wrote down these steps from previous experience, I found a video of the job and posted it below the instructions, so if you just want to see how its done, look below.

1. Remove all the screws from the camera on the outside, check for screws under all soft objects and labels.

2. once screws are out, you would carefully, very carefully start clipping open the cameras case, it is very likely still held in place by plastic clips on the casing. This is where the plastic stick or strong fingernails come into action

3. go around the camera along the path / line where the casing should open up. Again be very careful not to force or break anything.

4. the casing starts to be loose, keep going, if you find any new screws make sure to unscrew them.

5. The front and back of the camera - where the display is, may be connected together with a flex cable, or two, and possibly a connector or two. You need to release these very carefully, if you break off a connector, you can't get a replacement, you would have to either glue the cable back in or something similar.

6. once you have the cables out of the way / loose, the front and back of the camera should separate. now you should get access to the cracked display, it should not be too difficult to figure out how to remove and replace it

7. unscrew & disconnect the screen and its cables and any circuit boards that might be holding it in.

8. put in the new lcd connect it as the original was. Then begin going backwards putting the camera back together.

Actually I found a video of the job, here you go, the music is a bit loud, might want to turn down the volume.

http://www.youtube.com/watch?v=_p9lexFvwQE