I bought a T400 thinking that I'd be able to live with 1280x800 resolution from a WXGA screen. I was a bit mistaken, so I decided to get an OEM WXGA+ 14.1 inch screen. Here's documentation of the process.
0. Unplug, remove battery, and ground yourself!
1. Remove screw covers. You'll find six of them on the front bezel. Two at the top and 4 at the bottom. Use an exacto-knife to take off the bottom ones (they turn out to be flat covers). The top two should be pretty easy to take out without damaging them.
2. Removing the front bezel. This is the first delicate part of the operation. Use your nails and work them between the front bezel and the rear bezel, in the seams. What you're trying to do is is unhook the claw captures near the seam. You'll hear a click when you've successfully undone one. Eventually you'll find a part that will come off. Use that as a starting point, and then continue to use your nails around the perimeter, separating the front bezel from the magnesium frame and the rear bezel. Take your time! The second challenge is the double sided tape Lenovo uses on the front bezel, if you're not careful you will crack it.
3. Remove the rear bezel. This is a lot simpler now that the front bezel is out. Like before, use your nails and work them between the rear bezel and the magnesium frame. Everything should pop right off.
4. Examine the LCD mounts. With the screen facing you, you'll notice two things. First, along the left edge you'll find an antenna (it's off color from the magnesium frame). The antenna prevents you from removing the screws on the mount. But that's fine! You can remove the whole left mount. Then look at the right edge...hm, looks like you can't just remove the mount. That's still okay too! Just remove the screws that slide into the LCD screen.
5. Okay, before you completely remove the LCD screen, you need to unlatch the light at the top of your screen. If you have a camera, I don't really know what to say, but it goes without saying that you'll need to remove that too. The light seems to be sitting in a little slot that you can gently pull out.
6. Now you can remove the LCD. Set it down on your keyboard. You'll need to remove the inverter cable and the main video cable. Remember the orientation of both!
7. Okay, well now just unscrew that left mount and put it on your new LCD. Plug everything back in and remount. I think from here on it's pretty straightforward. You system will automatically detect the new LCD panel and adjust accordingly. Make sure it all works before redoing the bezels as that's the most painful part.
This post was inspired by:
http://forum.thinkpads.com/viewtopic.php?f=45&t=78857 and specifically
ljwobker
