Nexus One touch screen doesn't work properly when horizontal - Nexus One General

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

Related

HTC Magic Screen Question

Hey guys,
New to these forums here, Love the forums, not much of a linux-head I just do VHDL & Verilog
Enough for the intro; I have a question and I hope somebody here can help.
I bought the rogers Magic not too long ago, came from the iPhone 3GS and noticed something peculiar which I hope is not a fault of my device.
I noticed that if you have your Magic laying flat, and you try to swipe or actually touch the screen, it does not register anything. I have to have it in my hand for it to actually register any input from my fingers! Is this normal? or is it a manufacturing fault?
I tested it against my iPhone and even though they're both capacitive, it seems like the range of sensitivity might be toned down quite a bit on the Magic compared to the Apple device?
Thank you,
GenoMalice!
Mine doesn't do that. That's odd!
Taknarosh said:
Mine doesn't do that. That's odd!
Click to expand...
Click to collapse
Sorry, just to clarify Taknarosh
You can keep the phone lying flat, on your bed for example, and swipe around and it registers your swipes?
Thanks for the reply,
GenoMalice
I just tested mine lying flat and it seems to work fine.
I have the 32B Vodafone UK version, although I doubt that makes a difference.
You know I was just thinking about this as well, I've got the same issue with my 32B. I've noticed that it sometimes registers when the phone is not held/touched by another hand. But that is a strange issue...
I have two Magics (32A and 32B) and they both behave the same way you described. It is much easer to make phone response to the touching if you hold the device in your hand.
omg this happens to me too! if its laying on my desk the touch screen almsot never registers. when its in my hand or on a cloth or something it has no problems!
what rom are you using?
when i first got my rogers htc magic, it was exactly as you described. After I rooted it and started using myhero, the problem disappeared, i can now perfectly control my phone even if it's on a flat surface.
same issue on both stock 1.6 and latest CM 4.2.8.1.. I highly doubt this is a software issue
i also having a same prob .. maybe the htc magic need reboot .. after flashing new ROM .. the problem disappear .. weird ...
Same issue here, most of the time it is with my car mount while using Google nav. I'm using CM 4.2.11.2 on a 32A. It will not recognize my finger or the tip of my thumb but if I use the flat part of my thumb (quite awkward at a arms length by the way) it works fine. I also have had this happen when on a desk, it seems to be more noticeable when my hands are cold (maybe coincidence)
Sorry Double Post
It is issue connected with capacitive screen. The phone needs ground. It is not working good not because of flat surface, but because it needs ground. So when phone is on the wooden surface or it is in car handheld - then screen is less responsive.
You can test it. Lay your phone down where usually it is less responsive, and then plug in charger. The phone will be grounded, and screen will act like holded in hand
Sorry about my english, I know it is not good.
mastermid said:
It is issue connected with capacitive screen. The phone needs ground. It is not working good not because of flat surface, but because it needs ground. So when phone is on the wooden surface or it is in car handheld - then screen is less responsive.
You can test it. Lay your phone down where usually it is less responsive, and then plug in charger. The phone will be grounded, and screen will act like holded in hand
Sorry about my english, I know it is not good.
Click to expand...
Click to collapse
I have noticed this problem when using the phone on a car mount too. Now I understand why. Thank you.
mastermid said:
It is issue connected with capacitive screen. The phone needs ground. It is not working good not because of flat surface, but because it needs ground. So when phone is on the wooden surface or it is in car handheld - then screen is less responsive.
You can test it. Lay your phone down where usually it is less responsive, and then plug in charger. The phone will be grounded, and screen will act like holded in hand
Sorry about my english, I know it is not good.
Click to expand...
Click to collapse
Sorry for the extra-late reply but this is, pardon me, retarded.
You do know that the outershell of the phone is all plastic, right? And you do know that plastic is non-conductive, right? So, how the hell is your hand grounding the phone if all your touching is plastic?
The real answer to why so many of us have this problem with the Magic is most likely because HTC cheaped out and put some crap plastic covering over the display instead of glass a la iPhone/Nexus One/Milestone/Droid or even Hero.
P.S. I moved on from the Magic to the Milestone and couldn't have been happier... EFF ROGERS for ruining it for me!
Maybe because when a phone is flat you touch the screen differently. Think about it; when you have your phone in your palm and are using either your thumb or index finger, you are most likely touching the screen between the pad and tip of your finger, or the pad of your finger. Lay your phone flat on a table and you try like many other people try to do; touching the phone with the tip of your finger. This makes it a bit more difficult for touch capabilities to recognize the heat signature from your finger.
This could be the issue entirely because I lay my phone flat and never had a problem except for my fingers and wrist hurting from odd angles of approach to use my phone.

Digitizer Non Responsive

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.

Button light leakage easy permanent fix

This fix might sound crazy but it works
i have 2 evo's version 002 both with pretty bad light leakage under the buttons. One has 3 buttons and the second 2. In the dark they are very visible and i was getting annoying ready to return both. I tried the blowdryer trick but that did not work.
This is what i did about a week a ago, it only takes a minute.
Go get one of this which you might have laying around your house.
http://www.oppictures.com/singleimages/400/SAN82001_1_1.JPG
Go to a dark area where you are able to see the leakage and start painting let line between the plastic and leakage. try pushing down the plastic to and using the pen to paint some of of the inner cover. Get a towel and remove the ink that got into the screen and bottom cover.
After doing this my phone have not shown any leakage. i have tried water in a towel to see if it would remove the ink and show light leakage but no leakage what so ever (do not try alcohol). This fix is invisible to the naked eyes, i have 4 friends with evo's and they could not tell what i did, even after telling them they still did not know where was painted
This is an easy cheap fix, it takes about 2 minutes and anyone (and i mean anyone) can do it.
So please if it make you feel better returning bu
eduardmc said:
This fix might sound crazy but it works?
Click to expand...
Click to collapse
Are you asking us? i dunno, did you try it?
i dunno....seems ghetto, seems htc should have used done better r&d.
Hmm, I'd just like a $200 phone to work in the first place, not start falling apart 7 days in. :|
skoobz said:
Are you asking us? i dunno, did you try it?
Click to expand...
Click to collapse
sorry, i fixed it. English is not my native language so i do make alot of mistake in my writings.
Hrshycro said:
Hmm, I'd just like a $200 phone to work in the first place, not start falling apart 7 days in. :|
Click to expand...
Click to collapse
I don't believe i have had a phone that did not have any kind of problems related to software and hardware. The palm pre was a mess every new one i got had dead pixels, after 6 unit i finally got one that had 2 dead pixels. My diamonds phone use to get boiling hot. i could go on. all my friends iphones had drop calls like 20 calls a days (most switch to evo with me).
now the evil have a few problems, like the back cover not been flush and that was solved with a peace of small paper on top of the battery.
You will fine defect, nothing is perfect.
Interesting fix but it doesn't eliminate the fact the leak is happening because the screen is separating. Pushing the screen down will eliminate the leaking. The best fix will be to make sure the screen is sitting all the way down. So far I've only seen one guy do it on androidforums by pushing the screen down with clamps and heating it with a hair dryer. After letting it sit over night he didn't have any more leaking or lifting after two days. We have yet to hear from him on the progress (I think he ended up exchanging it anyway). Another guy said he tried the same fix and ended up making his phone worse.
thanks this is a nice cosmetic band aid If i don't see it, it doesn't bother me as much
coolguy949 said:
Interesting fix but it doesn't eliminate the fact the leak is happening because the screen is separating. Pushing the screen down will eliminate the leaking. The best fix will be to make sure the screen is sitting all the way down. So far I've only seen one guy do it on androidforums by pushing the screen down with clamps and heating it with a hair dryer. After letting it sit over night he didn't have any more leaking or lifting after two days. We have yet to hear from him on the progress (I think he ended up exchanging it anyway). Another guy said he tried the same fix and ended up making his phone worse.
Click to expand...
Click to collapse
yeah but it seems the screen separation on happens the first few days of using the device and the progress stop. my device did not progress after i notice the leakage and was looking for a fix. This kind of fix the problem since you won't see the light leakage at all. The screen separation is wasn't really a problem since i only notice it when the light leakage is visible.
Again the point is missed. This does not prevent the fact that in time the leakage will evolve into screen separating from the base. The light is leaking because the adhesive used during rush manufacturing wad improperly sealed around the face of the device. This was a huge problem for the iphone (didn't think it would happen to me but here I am with my evo)
This worked like a charm I've already exchanged my EVO twice (on my 3rd evo). The first two had dead pixels, and all three have had the light leak. I'm not in the mood to go through the RMA process with HTC, so this fix was a perfect solution for me. I tried a similar fix using superglue on one of the other EVOs I had, but it left an unsightly white residue in the crack of the screen.
While this may not be a permanent solution to the problem with the screen coming unglued, I'm ecstatic that I no longer have to see light coming from the bottom of my screen.
Thanks a lot.
This thread. ... with that Expo 2 ... funny.
I found my own fix after trying several different things including tightening the torx screws, using a hair driver and clamps, and an expo dry erase marker. I read a post about using plastidip which I had, but unfortunately it was dried out. I then decided to use something else I had around. A fine tip black paint maker (Decocolor - LINK). I dabbed the tip on a piece of paper several times to get a little paint on the tip. I then carefully ran it across the edge where the light was leaking which allowed a very small amount of it to drip down in the crevice. I then ran a q-tip and a paper towel along the edge to make sure any that got outside of the crevice was removed. Now I have no light leakage. The paint is permanent, waterproof (not that I will be testing that) and will be easy to reapply if I ever need to. It also takes very little skill and the markers can be found at a local Michaels or arts/crafts store.
On a side note, the hairdryer/clamp method did help a little, but this paint maker did the job the rest of the way.

[DISCUSSION] A thought about the "hinge issue": Possible Solution

Hi.
Just a thought here.
What if you would put magnetic tape on the areas on the picture.
That would take away the loose hinge problem, aint im right.
Then a thought about the magnetic, how will that screw up the gps, compass, the lcd screen or something else.
Anyone have any thoughts?
sluden said:
Hi.
Just a thought here.
What if you would put magnetic tape on the areas on the picture.
That would take away the loose hinge problem, aint im right.
Then a thought about the magnetic, how will that screw up the gps, compass, the lcd screen or something else.
Anyone have any thoughts?
Click to expand...
Click to collapse
It would take away the problem. And an accurate compass.
And perhaps the screen.
The only other thing would be velcro. And screw that!
Any other ideas, the compass i can live without...
The screen is just a little harder to live without.
As DanWilson says, maybe very weak velcro will do the trick.
Dont think velcro is a good choice...
very very weak, maybe
I realise that different handsets suffer more or less from the hinge 'problem', mine seems to be fairly average and does open half way if you pick it not touching the bottom half. But for me I have to hold it in such an awkward way that I usually drop it before or when the hinge flops open.
I find that if I hold the phone in a normal grip with thumb on left side and fingers on the right theres no way it can come open no matter what angle you hold it at?
Is the hinge open itself? U cannot write sms/email in bed or it's just a little loose. I do not see how hinge can prevent normal usage of phone.
BTW. It's not a issue it's by design!
I have been saying magnetic tape is the solution for weeks now!
My Z's hinge is fine at the moment so I am not best to try it out but if anyone does please report back, although I cannot see how it won't work.
D3LTA9 said:
I realise that different handsets suffer more or less from the hinge 'problem', mine seems to be fairly average and does open half way if you pick it not touching the bottom half. But for me I have to hold it in such an awkward way that I usually drop it before or when the hinge flops open.
I find that if I hold the phone in a normal grip with thumb on left side and fingers on the right theres no way it can come open no matter what angle you hold it at?
Click to expand...
Click to collapse
agree totally with u
Well written!
This has to be the biggest non-issue I've ever seen when it comes to cell phone design. I have seen the videos online and I have reproduced the "issue" on my DZ, but as D3LTA9 said earlier, I have to hold it so awkwardly and gingerly that I end up dropping it before the hinge opens.
If your fingers are more than 1/8" wide, you will not hold your phone like this in any real-life, practical operation of the phone.
mymanchris said:
This has to be the biggest non-issue I've ever seen when it comes to cell phone design. I have seen the videos online and I have reproduced the "issue" on my DZ, but as D3LTA9 said earlier, I have to hold it so awkwardly and gingerly that I end up dropping it before the hinge opens.
If your fingers are more than 1/8" wide, you will not hold your phone like this in any real-life, practical operation of the phone.
Click to expand...
Click to collapse
Was just about the wrte the same.. i have a loose "hinge" but no problem..
so i ask "What Hinge Issue ???"
This was born out of people expecting something from the phone that it was not designed to do, with the way the hinge is designed it is always going to fall back on itself in certain situations, it doesn't lock into place and is not meant to.
Sure some are looser than others but its still not an issue, if you don't like it don't moan and try a replacement you need a different phone, get a milestone 2 or something.
Well, got my Z. Yes, it's loose, but I don't care, because opening and closing is very good and I don't use my phone like that, that keyboard would drop...
I'm sure mine is faulty, it just doesn't stay open when I'm trying to txt whilst doing a headstand!!
No,... seriously, mine is loose, doesn't take much effort to open or close, and it does shut itself if I open it and try to hold it face down horizontal... but I never need to use it in that position. Even in bed, if I'm lying on my back, there is always at least a 90 degree angle, maybe upto 140 degrees as the viewing angles are so nice.
My personal preference,... I would like it slight little bit tighter,... but saying that, then I wouldn't be able to open it with one finger???.... so actually,.... as it is is fine.
Sent from my HTC Vision using XDA App
Has anyone here done the "magnetic tape" trick to fix their loose hinge? Mine is starting to get loose, but I don't think it's much of a problem even though I keep opening/closing it to see how loose it might be.
This was actually discussed and attempted sometime ago. The guy who did it said it worked great and he didn't have any issues with the compass/GPS. As far as I know, he was the only one who tried though (before the thread got locked due to immature and off-topic posts). Some pics of his mod are on this page:
http://forum.xda-developers.com/showthread.php?t=802202&page=3
There is a video demonstrating its effectiveness on the page after.
Another solution is actually taking the hinge apart and messing with the spring inside. This has been successful for a lot of people (myself included).
Post here: http://forum.xda-developers.com/showthread.php?t=863919
Videos of mod here: http://forum.xda-developers.com/showthread.php?t=884455 (look through entire thread for more videos)

Potential Nexus 7 Touch Screen Fix?

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
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.

Categories

Resources