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FIX for screen separation using GLUE

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ckl_88
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(Last edited by ckl_88; 3rd August 2012 at 07:19 PM.)
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Default FIX for screen separation using GLUE

For those of you who have tried the various fixes on this forum and are having no luck with the screen lift issue, then this fix may be for you. I believe the screen lifting from the frame is caused by something internal that is pushing the screen upwards and causing the adhesive failure. This fix will use glue to re-establish the bond between the screen and the frame.

This fix involves taking the back cover off and removing some screws and creating a gap between the frame and screen for the glue. Oh, and while the glue cures, you will not be able to use your device for at least a few hours depending on the glue you use.

If this is too much for you or if you are addicted to your device and cannot put it down to let the glue cure, there is an alternate glue fix that is faster, does not require any disassembly, but it uses super-glue - which dries too fast for my liking. The post is here: http://forum.xda-developers.com/show...&postcount=422 - Thanks to acegolfer for this.

*** DISCLAIMER ***
I'm not responsible if you break your device doing this fix.

Tools required
1. Guitar pick - or something flat to remove back cover
2. Small phillips head screwdriver
3. Toothpick
4. Glue
5. Damp cloth/ cloth - to wipe excess glue
6. Needle or tack - to apply glue.
7. Rubber bands, eraser, book - anything to keep screen in place and frame against the screen.

First things first. the glue I used is not super-glue, it is epoxy. Why? Because I've had much success using it, but not much luck with super-glue. See pic of the epoxy I used.


Since most of us have screen lift on the left side, these instructions assume the fix will be on that side.

Steps:
1. Turn off N7 and take back cover off

2. Remove the 4 screws on the left side.


3. Take the toothpick and cut it in half. It should now look like this:


4. Now flip the N7 over. Using the guitar pick (or the tool you used to take back cover off). CAREFULLY insert between the frame and screen to create an initial gap. then take one side of the toothpick and insert it to one side of the guitar pick. then take the other side of the toothpick and insert it to the other side of the guitar pick. take guitar pick out, it should now look like this:




5. Open up the glue. Squeeze a pea size amount onto a disposable piece of hard plastic. Even though the one I bought is self-mixing, I mixed it again using the tack, then used the damp cloth to clean off the tack.

6. Take the tack and dip it into the glue. The tack should now have some glue on the tip. CAREFULLY place glue in the gap you created in step 4. You do not need to fill it up, just a small amount. You can either place the glue continuously or spaced out at even points. I chose to put glue at evenly spaced out points approx 1/4" apart. Alternatively, the glue came with a fine tipped applicator (see pic), so you could have applied the glue directly into the gap, but that could be messy.

7. When the glue has been applied, remove the toothpicks and close the gap. Some glue will be squeezed out so wipe it off with the damp cloth. Flip N7 over and put the screws back.

8. take rubber bands and place them evenly spaced around the N7 to keep frame against the glass. then put an eraser on the screen to keep screen flush with frame. LEAVE THE BACK COVER OFF. You do not want anything that could possibly push the screen up at this point.


9. After putting screws back and applying rubber bands, double-check to see that there is no gap and the screen is flush with frame (similar to the right side).

10. I placed a phone book on top which I did not include in the picture.

11. If everything looks fine, let sit for at least 2 hours before touching it. If you used the same epoxy glue I did, I would not turn it on for at least 10 hours. I also did not put the back cover on until the 10 hour mark.

Final result.


I did this about 2 days ago. Since then, I've tested it by running some tegra 3 optimized games like Zen pinball and riptide until the rear lower left of the N7 felt quite warm. I know that when I performed the shim fix and the screw tightening, the screen would have lifted at this point - but it didn't with this glue fix. In fact, after gluing the frame to the screen, it feels more solid because there is no longer any sponginess when holding with my left hand and absolutely no creaks. Also, it feels good to see that after you've punished the tegra 3 chipset, the heat generated didn't cause the screen to lift.

Hope this helps some of you. If you feel that I missed something or have some suggestions, please let me know.

Cheers.
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eager27
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Thanks for both trying and posting this. You don't say at which point you replaced the screws? I'm guessing it was when the glue had dried?
 
shadeygeezer
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(Last edited by shadeygeezer; 3rd August 2012 at 06:49 PM.) Reason: spelling
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I just did the following:

Started transformers playing [was plugged in to power]

Set it on repeat..

waited about 30 mins - so it got a little warm..

Used the same rubber band / eraser trick you did..[without removing the back case] to hold the edge of the screen down.

Waited about 4 hours - film on repeat

Unplugged, turned it off and left it over night [about 12 hours]




Screen has held down for the past week - so sign of lifting.


So maybe worth trying before you go for the glue - and 100% non warranty issues
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jtc42
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I think you've hit the nail on the head here.

Looking at THIS teardown it seems clear that the screws play no part in how the display sits within the silver/black frame. The screws hold the internals to the frame and the display is glued to the frame. If the display is raised, then it's the adhesive not working. If you can push it to be flush, then its obviously not the screws pushing it out.

Looks like this is the only real permanent solution. I only wish there was a way to do this without actually bending the display up like that. My luck says I'd crack it! >.<
 
ckl_88
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Quote:
Originally Posted by eager27 View Post
Thanks for both trying and posting this. You don't say at which point you replaced the screws? I'm guessing it was when the glue had dried?
That should have been part of step 7. Edited. Thanks for noticing my error.
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Summerfly
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The fix looks great, no screen lift and no sideways bulge. Can I ask what sizes are those rubber bands you used?
 
ckl_88
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(Last edited by ckl_88; 3rd August 2012 at 07:05 PM.)
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Quote:
Originally Posted by jtc42 View Post
I think you've hit the nail on the head here.

Looking at THIS teardown it seems clear that the screws play no part in how the display sits within the silver/black frame. The screws hold the internals to the frame and the display is glued to the frame. If the display is raised, then it's the adhesive not working. If you can push it to be flush, then its obviously not the screws pushing it out.

Looks like this is the only real permanent solution. I only wish there was a way to do this without actually bending the display up like that. My luck says I'd crack it! >.<
try the alternate glue fix with super-glue by acegolfer:
http://forum.xda-developers.com/show...&postcount=422
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ckl_88
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Quote:
Originally Posted by Summerfly View Post
The fix looks great, no screen lift and no sideways bulge. Can I ask what sizes are those rubber bands you used?
I don't know exactly. I just had a jar of rubber bands and I chose ones that I thought would apply enough pressure to the frame to keep it from separating from the screen.
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jtc42
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Quote:
Originally Posted by ckl_88 View Post
try the alternate glue fix with super-glue by acegolfer:
http://forum.xda-developers.com/show...&postcount=422
Ah that looks safer. Though I'll maybe wait for a bit until I'm less bothered about it being in perfect condition. My Xperia Arc had the famous casing crack and I decided to just glue it and got the glue everywhere and it'd dried before I got to wipe it off. I'm clearly still as skilled as a small child with glue. Not too bad but certainly not as shiny now >.<
 
ckl_88
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Quote:
Originally Posted by jtc42 View Post
Ah that looks safer. Though I'll maybe wait for a bit until I'm less bothered about it being in perfect condition. My Xperia Arc had the famous casing crack and I decided to just glue it and got the glue everywhere and it'd dried before I got to wipe it off. I'm clearly still as skilled as a small child with glue. Not too bad but certainly not as shiny now >.<
I'm like you with the glue - that's why I used a type that takes minutes to set instead of just 30-60 seconds. It just dries too fast sometimes. You could probably try the epoxy instead of the crazy glue.
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