[T-Mobile myTouch 4G Slide] dilinger1111:
Protip: you can actually replace the digitizer without dealing witht the LCD adhesive nonsense. No heat gun needed, and no destroying your LCD. It does take quite a bit of time and manual dexterity, though. Here's how I've done with at least 4 different mt4gs's, after destroying some LCDs on 2 others using the 'recommended' way:

1) Take the phone apart as the repair guide here suggests, until the keyboard is removed and you're left with the front part of the phone.

2) Remove the U-shaped sticker and the 4 screws, as the guide says.

3) Work a safe-open pry tool around the edge of the front. Make sure all of the snaps on all sides of the screen are undone. Go slow! Don't worry about the digitizer screen separating from the bezel sides; it's not glued to it. Just try not to bend the glass or the LCD, but bending the bezel is fine (and kind of necessary).

4) The digitizer cable connects to the LCD panel at the top of the phone (near the earpiece speaker). What you want to do is work your pry tool deeper around the sides, to separate the digitizer from the rest of the phone. You'll start around the bottom edges, until you work your way through the black plastic sticky stuff (I think it's double-sided tape rather than adhesive) that attaches the digitizer screen to the border of the LCD. Again, go slow. Make sure the pry tool goes between the digitizer screen and the LCD, *not* between the LCD and the metal panel.

5) At this point, you should be able to lift the digitizer glass & bezel away from the LCD & back panel by 1/8 of an inch or so. Just enough to be able to peer into the sides and make sure that the LCD is still seated on the back panel. Now you want to release the bottom portion of the bezel/buttons/digitizer from the back panel. There's a little bit of adhesive down there keeping the buttons in place, so you want to stick your pry tool in straight and twist it. Slowly. You should hear and feel the adhesive separating.

6) Finally, the digitizer/buttons/bezel should be completely separated from the LCD/panel at the bottom and middle of the phone. The top will still be attached, but you can open it more and more. Don't go too far; you don't want to yank the digitizer cable out from the plastic connector. You shouldn't need to separate the digitizer more than an inch or so at the bottom of the phone, but it should be very clearly free.

7) Now for the hard part. The digitizer cable is pinched between the LCD and back panel, and there's a piece of orange see-through tape covering the cable and connector. You need to first get that tape out of the way, and then open the connector. Luckily, because there's an opening in the back where you can see the connector, that also means that part of the phone has very little adhesive (unlike the other half of the phone, which is absolutely drowning in the stuff). On the upper left corner of the LCD, get your pry tool between the LCD and panel. Work it in, separate it a little bit, work it in more.

8) When you can separate that corner of the LCD from the panel by 1/4 of an inch or so (yes, the LCD will look like it's bending, as 75% of it is still glued down to the back panel. No, it won't damage the display, as far as I can tell), you can work a knife or some other small tool in there. Your goal is to get something between the clear tape and the ribbon cables. Once you do, you can either pull the tape *through* the side, or through one of the holes. Or you can rip the tape out piece by piece. Whatever works for you. This is the most annoying and difficult part, but if you take it slow, it's doable. You don't need to get the entire piece of tape out, but you need to get the digitizer cable and connector completely untaped.

9) Once the digitizer cable tape is removed, open up the digitizer connector to free the cable. Since the cable is pinched between the LCD and panel, stick your pry tool between them, twist it, and leave it there. You can also stick a wider object in there. Point is, you want to leave some space so the digitizer cable can move freely.

10) Now (slowly) separate the top of the digitizer from the panel. Again, some of the objects are glued down (like the earpiece speaker), so you'll need to worry slowly and move your pry tool around. Eventually, you should have to digitizer/bezel completely separated from the LCD/panel other than the digitizer cable!

11) Now slowly pull the digitizer cable out from the top. The other cables that attach to the LCD may partially block this depending upon which direction you're pulling out, so you may need to work the cable back and forth to get it free.

12) Remove the pry tool or other object from the upper left-hand side of the LCD and back panel.

Congratulations! You've now removed the digitizer without destroying your LCD. The process for putting a new digitizer back in is much simpler; get the new digitizer cable in between the LCD and panel, use a small flathead screwdriver or tweezers (whatever you're most comfortable with) to work the cable into the connector, close the connector, remove the object you were using to keep the LCD and panel apart, and stick some clear tape over the connector and digitizer cable.

---------- Post added at 10:11 PM ---------- Previous post was at 10:05 PM ----------

Oh, I should note that this is what works for me. I accept no responsibilty for you breaking your phone! Try it with a phone that has a broken LCD first, just to make sure you can do it..