Hi, I have an issue that has formed after glass replacement on my Note 2. I was extremely careful in trying not to damage anything during the replacement process and I did not use excessive heat either, keeping the screen under 170 degrees F to loosen the cracked screen. The issue is that about half the time the phone touch screen will stop working during normal use and then when I hit the lock button on the right side and then unlock the phone again it will be ok for a while before it acts up again. So far, I have done a soft and hard reset with no luck. I noticed the problem is worse when the 12 small screws in the back of the phone are very tight, I loosened them all a few turns and this helped it act up less. The pen always works. I installed a multi touch testing app and this proves that something is up because it sometimes reads fingers that arent there, generally in the middle of the screen and sometimes this programs just completely flips out and reads fingers everywhere. So at this point Im guessing that maybe the replacement glass is too close to the LCD? It also does seem to be negatively affected if I bend the whole phone slightly, this also sometimes causes the touch screen to flip out of just quit altogether. Any input is extremely appreciated!
Is there supposed to be anything between the glass and the lcd when the glass is replaced? Sorry if thats a dumb question.
Related
Hi,
a while ago, I cracked my Uni's LCD. So I ordered a new one including the digitizer, opened my Uni and swithched the displays. Now at times, the touch screen wouldn't work at all - unless I tap the upper left corner (the start button; in portrait mode) or the lower left corner (the left button or slightly above it; in landscape). After that, tapping everywhere works normally. Does anyone have an idea what this could be caused by or how to solve it?
Thanks in advance!
I'd make sure your contacts are very clean. If you think maybe they're not, then take out and clean contacts with dry cloth or contact cleaner and re-insert.
Also, make sure there's no debris around screen. That nothing is pressing on digitiser anywhere else that gives false postive for it.
enigma may be able to help you better, I think she's more accustomed to the HW
Generally, all touch problems are associated with a digitizer. Without actually seeing your device I assume your digitizer is faulty and the problem may be either improper adhesion or the soldering joint improperly formed. Adhesion problem may be resolved by warming the screen with a blowdryer, no need to get it hot, just slightly warm all over and smooth with a soft cloth as if you are applying a screen protector, it loosens the special sticky gel that attaches the digitizer to the LCD and usually helps in cases where sensitivity is sporadic or screen calibration returns wrong response. Check for any bubbling, although not seen when the screen is viewed directly, some may be noted at the angle.
However, in your case there are certain points that need to be pressed in order for it to work, so I take it, the screen works most of the time and the problem is intermittent, the corners that need to be pressed might be the ones where adhesion is not up to scratch.
Try re-assembly, if all fails - contact the screen supplier, faults can happen, especially in non-OEM parts.
Do keep us updated if you find the solution, I am sure all members can benefit.
Problem solved
Well over time, the situation changed so that the touch screen didn't work at all, unless I was pressing one spot above the LCD fairly hardly, at which time it worked without problems. Once I stopped presing the spot, it stopped working again.
So I tried opening the Uni and disconnecting and reconnecting the LCD FPC (which was located just under the spot that needed to be pressed), which seems to have solved the problem
My phone has been going great and giving no issues. Byt the other evening suddenly the toicuh screen stopped being responsive!!! Totally randomly. No drop or spil or anythign like that, no new software or roms recently.
When you open it the keyboard still lights up, and after a hard reset, you can navigate a bit using the keys. But ZERO response from the screen!!!
As i say, this is even with a hard reset!!! I also tried using masking tip to pressure the screen in case somethign was stuck.
Ok it mighty be the digitiser, or a loose connection. Im hoping not.
Has anyone experienced this or similar and is tehre anythign else i can try before i take the plunge and get someone to look at it??? (its out of warranty unfort)
Ouch
Sorry to hear. It happened to me months back. It started with very uncalibrated clicks... making corner clicking impossible to compensate for.
I've recompensated, but that didn't last long - and it eventually degraded to no touch screen. With insurance, I did get a refurbish for my woes.
I flashed Stock ROM and relocked. No luck.
I'd still back up everything.
Reformat SD card.
Reflash stock ROM
Relock the device - all to see if it helps.
I did have a similar recent problem - but in this case it's because I was using a clip on hard case front that must've been putting pressure on the touch screen.
Hopefully one of these helps you out. Good luck
When my screen stopped responding it was due to a more physical thing.
I read this somewhere and tried it, worked instantly!
You have to get your finger nail under the screen (try pushing your nail into the edge of the screen from the side) and lift the screen up a bit.
This worked for me. If you think its a physical and not software issue give it a shot.
I have had the same problem.
I bought new touch screen on ebay (about $15) and after replacement the device works well.
stop everything !!!!!
if you have Google G Mail set up on your phone remove it and it will fix it's self
somthing google / G mail is doing the tilt 2 doesn't like
causing the "Sleep Of Death"
Hi guys
I have tried all the above
Last resort is i got sprite backyup to work
BUT HOW THE HELL DO YOU HIT "NEXT" OR "OK" FROM THE KEYBOARD AS SCREEN DOESNT WORK????
npahlavan said:
When my screen stopped responding it was due to a more physical thing.
I read this somewhere and tried it, worked instantly!
You have to get your finger nail under the screen (try pushing your nail into the edge of the screen from the side) and lift the screen up a bit.
This worked for me. If you think its a physical and not software issue give it a shot.
Click to expand...
Click to collapse
Woohoo! It worked for me too!
Below is one more post on this topic from another forum:
Originally Posted by p38fln View Post
Well, I finally figured out how this is happening - the digitizer is GLUED on to the phone's plastic case. The glue is like rubber cement, not rigid like super glue. Eventually, the glue lets the screen slide into the center of the phone, until the digitizer actually touches the screen - and then, the digitizer stops working.
It's actually very simple to fix - slide a finger nail under the plastic by the speaker and gently pry the digitizer up. Then, put it back. You dont need to remove it totally from the phone. It will flex back to its flat shape as soon as the glue releases. As soon as you stick it back down, the touch screen will work again.
I was wondering if anyone can help me fix a problem I've got with my tp2. Basically the device turns on and I can make phone calls and use programs fine. However I can't use the touch screen at all, the hard buttons all work, but touching the screen has no effect.
When the screen is turned off I can see a rainbow pattern on it and it moves to my touch. This could be water damage but I don't remember dropping it in water. The water mark is red on the phone and battery, so it probably is water damage.
Just wondering if anyone knows an easy fix for this. Thanks for reading
Just had exactly the same thing happen this week. At first if I turned it off and firmly pressed my thumbs up the screen (as if I was pushing the rainbow marks to the edge of the screen) I could get it to respond for a while. Then it started to get larger spots and now I can't get it to respond no matter what I do...
If the touch screen is not functional, then you'll likely need to replace the digitizer. I would suggest purchasing the LCD/digitizer combos, as they are easier to install for first timers.
My S3 has been working fine for months sort of. I bought it off of ebay with a huge crack in the glass, then my brother dropped it and all the glass fell out. To use the phone we has to touch the bare LCD of the phone, which after a while we just but a screen cover over it. I waited 2 months, bought a new glass replacement and put it on, everything worked just fine. After a little the home button when pressed to the left a little would make the screen go crazy. it would start tapping and swiping in random places. After locking and waking the screen the phone was normal again. after that, i removed the glass again, and this time when putting it back on if i pushed the home button it pushed the glass down a little, which would turn my screen black. locking the phone and waking the screen again turned the screen back on. Also the screen was a lot less sensitive, i'd have to tap a key 2-5 times sometimes to hit a specific letter. whenever that happened i put 3 dsi's to weigh it down and push the screen down, which would improve the sensitivity. that worked twice, and now my screen doesn't respond to touch at all. the screen will wake, but only when i press on the bottom right corner of the screen will it respond to touch. Any word on what could be the problem? i need to know what to buy to replace in the phone. I've already taken the whole phone apart and plugged everything back in, after i had tried everything to get my phone to respond. Could this be a digitizer problem, or an LCD problem? any possible fixes without having to replace anything?
The first issue was using the device without the glass installed. By touching the bare LCD you most likely damaged it. Your best bet at this point is probably going to be to replace the Touch assembly ( Glass / LCD Touch digitizer ) . Also keep in mind, when doing any sort of Screen replacement. Be sure to keep everything as clean, and dust free as possible.
Today I finally decided to replace the broken screen on my Nexus 7. Everything went well and according to plan, and when turning on the device I noticed it was working fine. However, upon closer inspection it turned out that one thin line on my screen isn't working. It's preventing me from doing SwiftKey flow, and when I tried drawing in Evernote I could see it was skipping over that part of the screen.
What could be the cause of this? I can't rule out that it's the screen part itself, but could it be more likely that I somehow damaged the LCD flex cable? I tried detaching and reattaching cables, so I have doublechecked that. I guess my question is mostly, how useful is it to try and replace the cable? Thanks in advance!
wi11ow said:
Today I finally decided to replace the broken screen on my Nexus 7. Everything went well and according to plan, and when turning on the device I noticed it was working fine. However, upon closer inspection it turned out that one thin line on my screen isn't working. It's preventing me from doing SwiftKey flow, and when I tried drawing in Evernote I could see it was skipping over that part of the screen.
What could be the cause of this? I can't rule out that it's the screen part itself, but could it be more likely that I somehow damaged the LCD flex cable? I tried detaching and reattaching cables, so I have doublechecked that. I guess my question is mostly, how useful is it to try and replace the cable? Thanks in advance!
Click to expand...
Click to collapse
Did you replace the combo lcd/digitizer, or just the digitizer? In the latter case, you're lucky to have just a thin dead band; usually,1/3 of the screen would be unusable. In the former case, if the bezel is bent, however slightly, or there is some glue residue from the old screen on the bezel that causes the new screen to lie on an uneven surface, it would happen. I've experimented enough times to know the bezel has to be absolutely clean of everything and the surface must be 100% smooth and even. If you used strong tape on the new screen, your best bet is the multi-fix touch, as removing it would in most cases damage it.
graphdarnell said:
Did you replace the combo lcd/digitizer, or just the digitizer? In the latter case, you're lucky to have just a thin dead band; usually,1/3 of the screen would be unusable. In the former case, if the bezel is bent, however slightly, or there is some glue residue from the old screen on the bezel that causes the new screen to lie on an uneven surface, it would happen. I've experimented enough times to know the bezel has to be absolutely clean of everything and the surface must be 100% smooth and even. If you used strong tape on the new screen, your best bet is the multi-fix touch, as removing it would in most cases damage it.
Click to expand...
Click to collapse
I replaced the screen + digitizer. I looked at the bezel (luckily the tape I used wasn't that strong so the screen was still detachable) and I cleaned it up thoroughly. There were indeed some glue residues left. However, it was no use, the screen still fails in the same locations. I had high hopes this might be the cause, but apparently not.
I highly doubt the bezel was bent, because I was very careful with it. I will try out the multi-fix touch option, but I'll do that tomorrow as I'm quite tired now. Thanks for all the suggestions!
wi11ow said:
I replaced the screen + digitizer. I looked at the bezel (luckily the tape I used wasn't that strong so the screen was still detachable) and I cleaned it up thoroughly. There were indeed some glue residues left. However, it was no use, the screen still fails in the same locations. I had high hopes this might be the cause, but apparently not.
I highly doubt the bezel was bent, because I was very careful with it. I will try out the multi-fix touch option, but I'll do that tomorrow as I'm quite tired now. Thanks for all the suggestions!
Click to expand...
Click to collapse
Don't know if you're familiar with the mechanics of the touchscreen, so I'm adding this for the sake of completeness. Lots of people would post problems and when you try to help, would snap back: "I already tried this and that and other things..." So if you already know, forget the rest.
I've found Yet Another Multi-touch Test (YAMTT) of tremendous help in diagnosing. When you switch from one firmware to another, YAMTT allows you to pinpoint exactly where touches do not register. If the dead band remains consistent, it's probably the screen itself. However, touch detection sometimes varies with the speed at which you touch. I've seen touches missing in some areas, which would register on a second or third or fourth pass. So, go slow in those areas, and back and forth to make sure they're really dead. Tedious process indeed, since you have around 30 variants to play with.
graphdarnell said:
Don't know if you're familiar with the mechanics of the touchscreen, so I'm adding this for the sake of completeness. Lots of people would post problems and when you try to help, would snap back: "I already tried this and that and other things..." So if you already know, forget the rest.
I've found Yet Another Multi-touch Test (YAMTT) of tremendous help in diagnosing. When you switch from one firmware to another, YAMTT allows you to pinpoint exactly where touches do not register. If the dead band remains consistent, it's probably the screen itself. However, touch detection sometimes varies with the speed at which you touch. I've seen touches missing in some areas, which would register on a second or third or fourth pass. So, go slow in those areas, and back and forth to make sure they're really dead. Tedious process indeed, since you have around 30 variants to play with.
Click to expand...
Click to collapse
I don't know about the mechanics of the touchscreen, so all of this is helping me
I took a look at that tool, and I posted the result of drawing on imgur: paste "oyIt3bg" after imgur.com (I'm apparently still too 'new' to post links, sorry about that). It is clearly one band, very consistent. I think I should probably talk to the shop I got it from and ask for a replacement. Which sucks, because this particular parts took 3 weeks to even get here. Anyhow, glad I know what the problem is now. Again, thanks for all your help, I appreciate it
Hello fellow dutchie,
I have experienced this problem on my Nexus 4, and after having replaced the LCD+digitizer I also had issues with touch responsiveness in exactly the same areas. As silly as it would sound beforehand, it doesn't seem to be the screen or digitizer. Best... to give up.