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Hey guys.
Owned the phone for a few months now and have started to notice a really odd problem. For a while the screen was being fairly unresponsive to touches and I couldn't figure out why. Taking the screen protector off fixed it temporarily but now the issue is back.
I finally realised that the issue was a black smudge that would appear whenever I pushed too hard on the screen. I'm assuming this registers as a touch on the screen and prevents it from working. Rubbing the stylus over the area usually makes it dissipate and the screen becomes responsive again, but it would come back not long later after general use.
Also there's some fairly odd rainbowing underneath the digitizer that moves around when you press on the screen. It circles around the smudges when they appear.
I know that all sounds fairly vague, but any help on the issue would be great. Is a new digitizer in order or could it be fixed by just dissassembling it? I've tried using a suction cap to make the problem go away, the rainbowing disappears but slowly comes back again. Also I haven't dropped the phone, left it near anything etc, besides the digitizer problem the phone works fine.
Thanks in advance!
(On a side note, I bought the phone off eBay and had to use a serial number locater to determine the region of the phone. Found out it was destined for India when I'm in Australia. Fairly odd, but what are the warranty implications? Is it still covered?)
Same problem here!
I've sent it to HTC for repair, since my Diamond2 has 1 year warranty and I only bought it in May/09. HTC said that screen issues are excluded of the warranty and that I have to pay about €70 for the screen repair, because, they say, the problem is due to misuse - wich I don't think is true.
Daisjun said:
Hey guys.
Owned the phone for a few months now and have started to notice a really odd problem. For a while the screen was being fairly unresponsive to touches and I couldn't figure out why. Taking the screen protector off fixed it temporarily but now the issue is back.
I finally realised that the issue was a black smudge that would appear whenever I pushed too hard on the screen. I'm assuming this registers as a touch on the screen and prevents it from working. Rubbing the stylus over the area usually makes it dissipate and the screen becomes responsive again, but it would come back not long later after general use.
Also there's some fairly odd rainbowing underneath the digitizer that moves around when you press on the screen. It circles around the smudges when they appear.
I know that all sounds fairly vague, but any help on the issue would be great. Is a new digitizer in order or could it be fixed by just dissassembling it? I've tried using a suction cap to make the problem go away, the rainbowing disappears but slowly comes back again. Also I haven't dropped the phone, left it near anything etc, besides the digitizer problem the phone works fine.
Thanks in advance!
(On a side note, I bought the phone off eBay and had to use a serial number locater to determine the region of the phone. Found out it was destined for India when I'm in Australia. Fairly odd, but what are the warranty implications? Is it still covered?)
Click to expand...
Click to collapse
You have collapsed your layers between lcd and digitizer.
Some folks here use duct tape to repeatedly pull the layers apart and it fixes their issue for a while.
Thought it'd be something along those lines. I'll give the duct tape trick a try, can you point me to some other threads? I tried searching but was probably using the wrong terms.
Also vasco that's complete bollocks. I've kept my phone in its case the whole time I've had it, never put any pressure on it or had it in a rough environment. I'd throw a few customer complaints their way, especially if other people have had the same issue. Nice to know I'm not alone at least.
Daisjun said:
Thought it'd be something along those lines. I'll give the duct tape trick a try, can you point me to some other threads? I tried searching but was probably using the wrong terms.
Also vasco that's complete bollocks. I've kept my phone in its case the whole time I've had it, never put any pressure on it or had it in a rough environment. I'd throw a few customer complaints their way, especially if other people have had the same issue. Nice to know I'm not alone at least.
Click to expand...
Click to collapse
search for "newton rings"
Daisjun said:
Thought it'd be something along those lines. I'll give the duct tape trick a try, can you point me to some other threads? I tried searching but was probably using the wrong terms.
Also vasco that's complete bollocks. I've kept my phone in its case the whole time I've had it, never put any pressure on it or had it in a rough environment. I'd throw a few customer complaints their way, especially if other people have had the same issue. Nice to know I'm not alone at least.
Click to expand...
Click to collapse
The issue is being discussed here:
http://forum.xda-developers...522813
I've already filed a complaint to the comm's regulation office. I'me presently waiting for their response.
had the same issue.. I just replaced the digitizer, it's a bit tricky but certainly possible.. yours is not that old so it should be repaired under warranty if you can have that done (have no clue about your situation there..)
digitizers are cheap on ebay
disassembly:
http://www.pdacenter.ru/razborka/htc-touch-diamond2/
Daisjun said:
Thought it'd be something along those lines. I'll give the duct tape trick a try, can you point me to some other threads? I tried searching but was probably using the wrong terms.
Also vasco that's complete bollocks. I've kept my phone in its case the whole time I've had it, never put any pressure on it or had it in a rough environment. I'd throw a few customer complaints their way, especially if other people have had the same issue. Nice to know I'm not alone at least.
Click to expand...
Click to collapse
Here is my thread about this.
I am in the same boat as you - phone was destined for somewhere in Asia, and I am in Australia. I contacted HTC, and they also told me that the problem could be caused by misuse, even though I KNOW it wasn't, as my phone is always in it's case unless being used, never dropped etc. It sucks, but I think I will just replace the digitizer myself.
Hi Guys,
This morning I suddenly noticed black 'liquid' spots 'behind' my screen. The screen stills works perfectly, but not sure what to do with these spots.
Should I bring it in for repair (reflashing to original ROM, etc)?
These are spots like we used to see on LCD screens, if you press the screen, they get bigger. If I take out the battery and press from the inside, the spots move as well. I reckon there is some pressure build up in the device and would like to open it myself, but that would void the warrenty of course.
Attached 2 photos, 1 with screen off (clearly visable) and 1 with screen on (not really bothersome).
anybody seen this before?
FTrippie
ink bleeding, u should get it to repair asap, lcd is messsed up
My mistake, the other members are right, I am sorry as I could not see your pictures correctly because I was browsing with my hd2.... it is not ink bleeding, for that, you have to have the lcd broken..... anyway, I am glad is not bleeding, now, lets learn from the other members.... cheers..
There are quite a few threads with people having the same issue, I don't believe it's bleeding like suggested above, it is the layers of the screen sticking together. I had the same problem on my old LG Viewty about three years ago - sometimes it goes away on it's own (when the phone gets hot for example) and sometimes you need to get a replacement. If it's new I suggest you speak to either your provider or HTC.
Use a suction cup to carefully pull the screen a little bit and it should disappear.
Brgds... /TubGirl
Same thing happened to me, and few other members... Have a look here.
Grtz
Lukas
Thanks for the quick response guys!
Yep, it's exactly what happened in thread mentioned
(did some searching but couldn't find it before)
the suction cup idea might be a good one, will check it out and let you know. If I can solve it myself it would be much better than sending it in.
thanks!
(newton ring ) this is dueto great pressure happened on the screen if not fixed in short time the screeen will be corrubted .
note; (it is not covered by warranty)
Nope, in my case no pressure whatsoever. It just happened overnight. If it would be pressure, it would be from a faulty manufacturing and elements of the device not fitting well.
Just read the whole case in the other thread, I think I am in for some treat.
Will start with calling my dealer, which is Vodafone Spain.
ftrippie said:
Nope, in my case no pressure whatsoever. It just happened overnight. If it would be pressure, it would be from a faulty manufacturing and elements of the device not fitting well.
Just read the whole case in the other thread, I think I am in for some treat.
Will start with calling my dealer, which is Vodafone Spain.
Click to expand...
Click to collapse
mab be it would be from a faulty manufacturing but fix it fast before the screen corrubts from over pressure as this happened on hd1 and they did not want to fix it under warranty
If this happened to me and I couldn't get rid of it, I would go ballistic if HTC claimed it wasn't covered by the warranty. What a total piss take.
i can understand the newton ring effect on resistive screens, but on capacitive screens using glass - i find it hard to believe.
Yes, ardsar. My thougths exactly.
I had Newton rings on my touch hd. And I was informed that that is imposible on capacative screen because it is made of hard material, top layer cannot fall on the lower one.
Whatever it is, I hope it's not a recurring issue. In my thread three HD2 had that issue, and now another one...
Exactly Lukass, I hope this is just coincidence.
I just reflashed the original ROM and will take it this afternoon. In the end I decided not to try to get rid of it myself, since it is now plain visible. And I only had it for 2 weeks, so of it goes.
Let's see what they say.
I had this, repaired by repair service under warranty. The report said it was newton ring.
well, I just brought it in, estimated return is 11th March, let's hope that it will be quicker!
cheers!
Yes it is a newton ring caused by pressure perhaps if you keep the phone in the trouser pocket which is tight.I had the same but as repaired under warranty in 2 days.
Be careful not put to much pressure when putting the battery in, since its a very thin layer between the battery and the LCD. I think this can cause the LCD come in contact with the digitizer if you are not careful.
propably heating issue
has anyone got the idea that this may have been caused by heat? maybe when the internal components of the phone heats up this causes the gap (spot) on the screen. can anyone confirm what is behind the spot? is it the processor? i've got this idea because before switching to hd2 i was using SE xperia x1 and maybe most of you are aware of the cracking issues of the silver casing. well according to my local SE representative this cracking was caused by heating when using wifi. it was covered by warranty since it's a manufacturing defect. HD2 also heats up when using wifi and maybe thats what causing this problem. well its just my idea. feel free to share yours.
how to fix liquid spot
ftrippie said:
Hi Guys,
This morning I suddenly noticed black 'liquid' spots 'behind' my screen. The screen stills works perfectly, but not sure what to do with these spots.
Should I bring it in for repair (reflashing to original ROM, etc)?
These are spots like we used to see on LCD screens, if you press the screen, they get bigger. If I take out the battery and press from the inside, the spots move as well. I reckon there is some pressure build up in the device and would like to open it myself, but that would void the warrenty of course.
Attached 2 photos, 1 with screen off (clearly visable) and 1 with screen on (not really bothersome).
anybody seen this before?
FTrippie
Click to expand...
Click to collapse
i had the exactly the same problem, and fixed it!!!! what i did was to heat it up with a hair dryer while it was on charge(this causes the battery to heat up as well) the spot started to shrink slowly took around 2 hours, but it didnt solve my problem total, as when it cools down the spot would comeback but not as large as b4. so getting pissed of with it i put it on charge from my laptop and placed my hd2 behind the air vent of my laptop(where the heat escapes) and continued working, i forgot my phone was there for about 5-8 hours. when i remembered it was there i moved it, whole phone was very hot not so hot that i couldn't hold it but hot enough. the spot had gone totally. but i thought it would comeback when cooled, so i decided to cool it slowly placing it back behind my laptop but moving it further away at 10 min intervals until it was around a foot a half away from the heat. i now have my hd2 working fine. with no spots.... my theory on this is that the liquid had been pushed else where within the phone as i couldn't see any liquid seeping from the phone so by heating the whole phone wherever the liquid was it thinned and cover the spot but upon cooling it would compress again dont quite understand how i worked around that but it worked
Hi, I've now used the Nuxus One for a few days and I'm pretty happy with it and all it's fancy fetures.
The phone works flawlessly and the only minor issue I'm willing to report is the fact that when the phone is lying on the table the touchscreen doesn't respond as quickly as it does when holding it in hand..
I've also noticed that if you touch the shell of the phone with a finger while trying to use the touchscreen, everything goes back to normal.
Is it a flaw only present in mine or is it an issue that involves the capacitive touch screen of the Nexus?
Video Proof
This is the video I've taken with my other phone so it would me much clearer what I mean..
The quality is not great but I hope it will be explicative enough..
http://www.youtube.com/watch?v=hXPpyGwuSzM
mine work correctly, try it on another table
I've tried it on different surfaces but the result it's the same..
Problem is that it doesn't always do it, so it's difficult to judge if a surface works better than an other.
I've called HTC support and together with them I've done some tests, like letting another person use it the same way, but nothing changes.
I've also done a hard reset and nothing has changed so I think I will have to send it in hoping they will fix it..
I envy you in the US where you can just ask for a replacement...
Is it possible that your fingers are real dry and or you are working in a dry low humidity environment?
rotohammer said:
Is it possible that your fingers are real dry and or you are working in a dry low humidity environment?
Click to expand...
Click to collapse
Hi,
I don't think so, since I've now tried it in different environments and by different people...
This is very weired..and annoying..
I've had my Nexus One for over a month, but I recall having the same issue one day early on.
Similarly, I've had days where I can't operate the touchpad on my notebook computer because my fingers were dried out from handling solvents.
I have an associate that has a similar issue when the phone is in a leather holster case. She has to take the phone out on occasion to operate it, most while driving.
havent had any issues. Call them for a replacement
I think I will do so!
The problem is minor but sometimes can be a real nuisance..
Looks like screen isn't grounded properly.
Yes, I think so too. It must be something electrical. When I keep it in hand or touch it, the static electricity must not influence it, but it does so if I try using it lying on its own.
I've taken another video changing the surface on which I use it on..
Take a look: http://www.youtube.com/watch?v=iZ-nS_h5Pqs
I'm glad to see you're still investigating. Because the problem is so repeatable, and the fact that its not a common complaint, I'd conclude theres a something wrong with your phone.
One thing I'd try is to remove the battery for 8hrs (overnight) and see if that make a difference. I've worked with a lot of electronic devices that behave badly after receiving a static discharge. Sometimes leaving it sit without power helps the static dissipate.
But the fact that it works while on the laptop would indicate a poor ground from the touchscreen circuit to the chassis of the phone, as the proximity of the laptop changes the capacitance of the internal circuit enough to overcome the lack of effect that the chassis alone needs to provide.
hehe I have to investigate to be sure this is a bug relative to my device so that when I will send it in for repair they will have to find a way to solve it and not just pretend it doesn't exist...
try pressing with all skin and not with your nail. It needs heat to work.
htcmagic said:
It needs heat to work.
Click to expand...
Click to collapse
No, it doesn't. To prove it, hold a metal spoon and slide it across your screen. Mine works.
this was a common problem on the G1 and the way the capacitive screen was designed. In order for it to be functioning completely, HTC told users that he needed to have it in his hand or at least a finger or two touching the phone. HTC said that it simulated a circuit (the hand on the phone made a complete circuit while just touching it left the circuit incomplete) I have noticed the same thing on the N1... it works great in my hand on if i am touching the sides with a finger and scrolling or using it, but if i just lay it down and try to scroll/touch with 1 finger it becomes much less responsive, the same way the G1 would.
i will see if i can find the exact thread over in the G1 forums where all this is posted.
It makes sense, but then, why others work? mmm...
Batas said:
It makes sense, but then, why others work? mmm...
Click to expand...
Click to collapse
The only thing I found while googling is that you need some humidity in the air for it to work effectively. I'm really not sure if that applies to this specific design though.
I've never had an issue with using the screen on a table, so this is probably isolated, I'd give htc a call and ask for repairs.
Edit: I just tried for the hell of it doing the pinky touch on the frame, and the soft buttons became much more responsive. Hmm
I just wanted to report on a possible fix to touchscreen issues. While this may, or may not, work for you, it is what I did, what I have done on three(3) total devices & it is what has eliminated touch screen issues for myself & two other individuals.
This is a work in progress & I will be adding pictures & more detailed instructions, along with progress updates as I use the device going forward. This modification (though it really isn't a mod) requires no tools & while it does entail some light dis-assembly, it did NOT require breaking any seals that would void the warranty outright. Doing this however, may very well void your warranty, I am not an attorney, I am an engineer & taking things apart is what I have been doing since before I could even crawl nearly forty years ago.
To begin, I will go into my Nexus 7 story, which may allow you to identify similar symptoms.
My Nexus 7 device worked well out of the box, with only occasional multi-touch issues. As time progressed, the issues got worse & at one point a couple of weeks ago, even single touch event started to lag or not register. My Nexus 7 is a batch from July of 2013 & I purchased it in August of 2013, so it was still under warranty. Asus issued me an RMA number, however, I hate broken things, knowing darn well that 99% of the time I can fix them myself far faster than the total time it would take an OEM to get my device back to me. At any rate, after the 4.4 update, my touch issues got even worse. Aside from missing even simple gestures & taps, occasionally the screen would look funny & once it even had a sttatic "snowy" screen that was remedied by a factory reset.
After reading a few complaints from people about screen separation & investigating the device via the ifixit tear down, I decided I would take a look before committing to the RMA process. I gently slid my thumbnail under the bezel & slowly worked it around. Immediately I could feel the clips giving way & I eventually had the back cover off. Once the back cover is off, you will notice that the screen & digitizer ribbon cable runs across the battery, pinned in between the battery tray & the inductive Qi coil on the back cover of the device. I found it is easier to ease all the sides up slightly, then remove the back by gently lifing from the sides & upper portion, with the bottom, where the USB port is, being lifted up last. Once I removed the cover, I disconnected the battery terminal clip. After disconnecting the battery, I then followed the screen ribbon cable to where it is clipped into the screens board contacts with a plastic stay. Immediately upon applying pressure to the cable ribbon stay I felt & heard a faintly audible "click" sound. On closer inspection, I discovered that poor contact was being made by the ribbon cable & furthermore, the flex in the battery tray over time, when coupled with the heat generated at that location (due to the battery & the inductive Qi coil) can slowly loosen the ribbon cable stay & affect the quality of the connection. I used a thin piece of composite material to reinforce the cable ribbon stay & used a piece of vinyl along with a non-conductive adhesive to better secure the cable ribbon & stay. I only used a tiny amount so as not to affect the ability to safely disconnect the ribbon cable without destroying it. I also did not want a bunch of adhesive heating up & spreading to other areas. Before I performed the following step, I decided to test out a few thoughts. What I discovered is detailed in the next paragraph. So, after letting the adhesive dry overnight, I reattached the battery terminal clip & started the device. It has worked flawlessly since, without any touch issues.
While I had the back cover off, I carefully reattached the battery terminal clip & while wearing Nitrile gloves & standing on a wood floor to minimize the risk of static discharge, I would turn the device on with the display ribbon cable in various states of connection. They ranged from being angled so that the far contacts would make little or limited connection, to a full connection with varying degrees of pressure applied, to simulate a good or bad connection. Sometimes the device would not boot. Other times it would boot & have a static or "snowy" screen. Sometimes it affected all touch, from single finger events to multi-touch. It also surprisingly affected the system response. Things would freeze up & apps would FC or ANR. Again, once I improved the connection, everything was back to normal & functioning perfectly. In fact, it is functioning better than it did out of the box.
While I am sure Asus would argue that this voids the warranty, I did not break any seals. No tools were needed, just the materials I chose to use & had lying around. As I also mentioned in the opening, I did this on another household members device, that only had multi-touch issues, not all the issues I had, & their device has now been functioning wonderfully for the last several days. The display ribbon clip in their device was not completely detached on one side like mine, but it was fairly loose all the same. The third device was a friends & it was having mostly single touch issues, though he said multi-touch issues would come & go. We ran through the steps on Hangouts & his ribbon cable was in its place, but as he removed the back, the stay clip fell out. His device is also functioning normally now & he has not reported any further touch screen issues.
Since the problems people are having are oftentimes different & not consistent, it very well could be that this is exactly the issue. I would surmise that it could be the very reason why Google & Asus have been VERY, VERY quiet about the issue, since it would require returning the device for a fix, not simply a software fix.
If you try this, I urge you to be patient & use the utmost care when removing the back. While there are no cable attached to the back, you never want to force things. Be gentle & when you find the right spot for lifting, you will know it. It is not difficult & it is relatively harmless. I would caution you to use gloves & minimize the risk of discharging static electricity. I also recommend using gloves because copper sheeting is used in a couple spots & if you have ever worked with copper sheeting in electronics, you know that stuff grabs oils from your skin like crazy & you will end up leaving evidence in the form of an ultra-clear fingerprint that almost no solvent will remove. (Don't use solvents in your device unless you are a daredevil or know what you are doing).
So, that is my story & what worked for me & my small group. Ultimately, these devices are ours & it is up to each of us individually to pursue the fixes or mods that suit us best. That also means that the responsibility & consequences belong to each of us as individuals. What steps you are willing take to remedy any issues you may have with your device are decisions you need to weigh. This is XDA, where people take risks, assume that the are eventually going to brick their devices & make real modifications to devices (which this really is not). If you break something because you needed every single little detail & step spelled out for you, that's not my problem. Again, this is XDA, not some ragtime blog & anything you do here usually requires you to be able to think for yourself at some point.
Lastly, I will try to get to a step by step with pictures as soon as I can. I am not a developer, I am not a student & I don't have a ton of time to devote to answering questions. I will do what I can, when I can, but between the holidays & my job as a mechanical engineer (two large hospital projects are going on right now that take up 95% of my day), I have very little time right now. This post is the result of a large lunch review meeting, not free time, so it will probably take some time to get everything up. I have to recreate most of it, since I really figured on RMA'ing my device. I never expected this to work as it has for me.
Thanks.
Thanks for the post! If I know the issue I don't mind taking it apart to fix it.
I RMA'd it once as I didn't feel I should have to fix it, but it was such a pain jumping through all the hoops only to get it back with docs stating "OS reset" and finding the problem 30secs after resetting up my account.
I have another RMA but have waited shipping it for an update to KitKat in the hopes that it would help. It hasn't. I'll have to see if I feel up to trying your fix.
Thanks!
Sent from my Nexus 7 using xda app-developers app
No one else tried this?
I barely have screen issues, but I am curious to know if this works, after replacing my N7 2013.
Thanks and regards,
Video tuto
Need a video tutorial. I have both touch and multi reboot issue. sometimes there are 2-4 reboots occur during rebooting of system. problems persist even after kitkat update. I think this is the cause that causing me such multireboot issue.
Hope this will solve my problem. i am out of USA country so i cant give for a RMA. But need a solution look like that.
Thanks gsleon3. It always sounded like a hardware bad connection type of issue so I'm not surprised.
The problem with rma is that I'm not sure their repair techs would really fix anything. The cause may not have been made known even to their own techs because it would leak out and might start a class action law suit. My 2012 nexus 7 never had any of the touch issues my 2013 version is showing. Quality control has slipped with the 2013 version.
Any lawyers here?
Video might be tough, but I'll try to get to it. I will try to dedicate some time this weekend. I was thinking Saturday night, but I just learned that the Day of the Doctor is being simulcast in 3D near my house. So it may have to wait till Sunday so I can let my inner geek out.
Sent from my Nexus 7 using XDA Premium HD app
GSLEON3 said:
Video might be tough, but I'll try to get to it. I will try to dedicate some time this weekend. I was thinking Saturday night, but I just learned that the Day of the Doctor is being simulcast in 3D near my house. So it may have to wait till Sunday so I can let my inner geek out.
Sent from my Nexus 7 using XDA Premium HD app
Click to expand...
Click to collapse
After what you shared with us, please DO enjoy your 3D simulcast of THE Doctor. We will be patienly waiting for your video.
Regards!!
nearly an inch long strip at the top of my screen stopped responding to touch i sent it back only had it for 6 days..
Tried this out. My clips were seated properly but I can see the reasons why they pop out.
Took about 5 mins from start to finish to test. Good job.
OP, during your disassembly of the device did you notice any random internal parts that could possibly be applying pressure to the screen from behind it? I ask because my otherwise perfect nexus 7 got a random blue dot in the middle of the screen and I know from past experience that that's typically the result of pressure physically warping the lcd panel.. otherwise the only other thing I can think of is that the lcd is being permanently damaged by the on/off case magnet but that's unlikely. or maybe heat that's causing the battery to flex into the screen. It's extra frustrating because I've had the nexus in a loose fitting hard case and the hard front flap should prevent the kind of pressure damage that would cause those blue marks... sigh.
ibebyi said:
OP, during your disassembly of the device did you notice any random internal parts that could possibly be applying pressure to the screen from behind it? I ask because my otherwise perfect nexus 7 got a random blue dot in the middle of the screen and I know from past experience that that's typically the result of pressure physically warping the lcd panel.. otherwise the only other thing I can think of is that the lcd is being permanently damaged by the on/off case magnet but that's unlikely. or maybe heat that's causing the battery to flex into the screen. It's extra frustrating because I've had the nexus in a loose fitting hard case and the hard front flap should prevent the kind of pressure damage that would cause those blue marks... sigh.
Click to expand...
Click to collapse
Well if it is pressure, I've found on past devices, sometimes batteries start expanding over time, like they have a fat belly.
Touchscreen possible fix
Started reading a bit on Google Products Forum and found a guy who said that the touchscreen problem can't be fixed by software.
So he took the back of the tablet off and found that the problem lies on the screen digitizer cable not being clipped to the connection port correctly. He disconnected the cable and connected it back again, and now his touchscreen is working perfectly.
I do not want to try it because I don't want to risk anything, but can anyone brave enough try this?:fingers-crossed:
Here's the guy's profile: http://productforums.google.com/for...ioWy9HdPwsowoDCuOz8SS9uR9nzVnPi6g2kSAInwwCj94 (it's the post form Nov 19)
LittleConfucy said:
Started reading a bit on Google Products Forum and found a guy who said that the touchscreen problem can't be fixed by software.
So he took the back of the tablet off and found that the problem lies on the screen digitizer cable not being clipped to the connection port correctly. He disconnected the cable and connected it back again, and now his touchscreen is working perfectly.
I do not want to try it because I don't want to risk anything, but can anyone brave enough try this?:fingers-crossed:
Here's the guy's profile: http://productforums.google.com/for...ioWy9HdPwsowoDCuOz8SS9uR9nzVnPi6g2kSAInwwCj94 (it's the post form Nov 19)
Click to expand...
Click to collapse
The author of that post is the op of this thread.
sfhub said:
The author of that post is the op of this thread.
Click to expand...
Click to collapse
Whoops, sorry, didn't realize:silly:
ibebyi said:
OP, during your disassembly of the device did you notice any random internal parts that could possibly be applying pressure to the screen from behind it? I ask because my otherwise perfect nexus 7 got a random blue dot in the middle of the screen and I know from past experience that that's typically the result of pressure physically warping the lcd panel.. otherwise the only other thing I can think of is that the lcd is being permanently damaged by the on/off case magnet but that's unlikely. or maybe heat that's causing the battery to flex into the screen. It's extra frustrating because I've had the nexus in a loose fitting hard case and the hard front flap should prevent the kind of pressure damage that would cause those blue marks... sigh.
Click to expand...
Click to collapse
Ive disassembled the device too and it has nothing specials with exception that few flex cables located right unddr the cover. Not sure if one of them is belongs to touchscreen though
Also i got this blue dot too,and one pink as well. In middle of screen.
Tim4 said:
Ive disassembled the device too and it has nothing specials with exception that few flex cables located right unddr the cover. Not sure if one of them is belongs to touchscreen though
Also i got this blue dot too,and one pink as well. In middle of screen.
Click to expand...
Click to collapse
I got a blue smear too, but near the edge of the panel but since it's not very visible..I'm just gonna ignore it..
GSLEON3 said:
Video might be tough, but I'll try to get to it. I will try to dedicate some time this weekend. I was thinking Saturday night, but I just learned that the Day of the Doctor is being simulcast in 3D near my house. So it may have to wait till Sunday so I can let my inner geek out.
Sent from my Nexus 7 using XDA Premium HD app
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Absolutely no problem, GSLEON3, with profound gratitude I assure you that we really appreciate your engineering work discovering the problem. Take your time and we will patiently wait until you have the time to prepare a more complete review.
Wow! If it is so easy, I don't understand what the Asus support makes everyday.
Thanks for sharing it.
Sound really greate and promising. If you could, a tutorial video would be perfect for us, please
sfhub said:
Well if it is pressure, I've found on past devices, sometimes batteries start expanding over time, like they have a fat belly.
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If higher amperage is used there is an increased risk of expansion due to the higher excitation in the Li atoms. You will increase the wear of it too.
So if possible always use lower amperages to charge batteries(preferably around 500mA), you can limit the charging IC using a lower output charger or your computer's USB port.
I have a NST with glowlight and i have touch issues quite often... when using the keyboard when i touch backspace it touches "h".. when i touch space .. it touches b ... does anyone have these screen issues? it's like phantom touches.. i takes me 5mins to type something
This is a known issue. I just received mine in the mail and it had issues. I found you can clean it and it may help. But for me, since it is brand new, I just had them ship out a new one. If you are not under warranty, I actually just did a factory restore and it stemmed to have helped a bit.
lekofraggle said:
This is a known issue. I just received mine in the mail and it had issues. I found you can clean it and it may help. But for me, since it is brand new, I just had them ship out a new one. If you are not under warranty, I actually just did a factory restore and it stemmed to have helped a bit.
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ok thx. It's brand new for me also... not even 1 month... do i need to ship back my nook to get a replacement? i bought from ebay... i need to contact who to report the issue? I read when they give u a replacement, they you a refurbished one?
edit: hmmm so this issue is faulty hardware? or it's just cleaniness? and it will happen sooner or later on any nook? will a cover help?
yeahman45 said:
ok thx. It's brand new for me also... not even 1 month... do i need to ship back my nook to get a replacement? i bought from ebay... i need to contact who to report the issue? I read when they give u a replacement, they you a refurbished one?
edit: hmmm so this issue is faulty hardware? or it's just cleaniness? and it will happen sooner or later on any nook? will a cover help?
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Nook touch screens use infra-red sensors/emitters located around the edges of the screen. If the transparent plastic sandwiched between the screen and the bezel gets dusty, it can cause problems.
cowbutt said:
Nook touch screens use infra-red sensors/emitters located around the edges of the screen. If the transparent plastic sandwiched between the screen and the bezel gets dusty, it can cause problems.
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so it's not really a hardware fault but it's because of dirt?? any cover case that can protect against such scenarios? how do i clean it?
I think there are two scenarios (perhaps more). Faulty hardware in which the infra red sensors do not function correctly or dirt/ dust impeding their ability to function. One always hopes for the latter.
The reset I did only helped for about an hour.
First try to clean it.
Since you got it off eBay, start by contacting the seller. Ask the person if it is still under warranty.
Then, contact 1800thebook to get a replacement. If it is not under warranty, I am not sure what your options are. EBay and electronics is always a gamble. Sorry.
~Leko
Go forth and work toward your salvation with diligence.
ok thx,... i have tried cleaning it up but it helps for a few seconds but then it gets freaky at times.. it's a pain to type! do you guys ever take notes with it??? it's impossible...
i don't think it's a hardware issue since the first 2 weeks it works with no problems... i was keeping it in the box while not in use... since i started not keeping it in its box.. i am getting these touch issues... so seems related to dust...
will i need to send back my nook to get a replacement... sounds pretty annoying to do so.. shipping is damn expensive
sidenote: looking at the edge of the nook, i see shiny particles... is this normal or is this dust?
i can't even type my wifi password anymore... every button i touch also "ghost" touch the corresponding middle button.. e.g. when i press d, i get dg ... how do i clean that damn thing? where do i need to clean exactly?? i am cleaning the edge.. does not seem to work.. sometimes it seems ok, then 2 secs later it gets messed up again
Cleaning the screen is a different reason to normal screens. Normally you just want the greasy finger prints off etc. However thats for a resistive or capacitve based touchscreen. NST/NSTG touchscreen works on an infrared array running along the edges ABOVE the screen rather than a stuck on touchscreen so as not to affect the contrast in sunlight.
This means a piece of particulate matter on the screen will affect the touch sensor.
If its confused sometimes it won't work at all! The worst environment to ever take your NST is to a sandy beach, really don't do it.
Personally I use a air duster (compressed air can) to get those pesky bits out of the edges.
When not using NST keep face down to keep out bits of crap or keep in a case..