Database Users

Help, black 'liquid' spots, what to do

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

[Q] My HTC HD2 is going berserk

Since about 2 months, my HTC HD2 sometimes runs into a strange behavior.
It's like some invisible fingers are touching the screen very quickly, triggering apps, menus, and sometimes calling people!
The only way to stop that is to restart the phone (but when the HD2 starts to behave that way, it's difficult to restart it, as these "invisible fingers" are still competing with MY fingers!).
I don't know what caused the problem in the first place, and I don't know what triggers the problem when it happens.
Is my HD2 out of order?
Thanks
Gz

It could be that your touchscreen is too sensitive and your sweat from your fingers is triggering it; Did you try cleaning the screen, your hands and using a screen protector?

your digitizer is going to die very soon

By "digitizer", you mean the touch glass?
Did it happened to you before?
Why so many of your phones had their glasses cracked?
Thanks

adempozhari said:
your digitizer is going to die very soon
Click to expand...
Click to collapse
It's very probable to happen...

Try to massage the screen around the corners especially above the buttons.
There is some kind of "glue" to prevent contact with metal but if its old or used it could make this problem.
Maby you can trigger it or at least find the point where to press to make it stop.
=> using a heating fan (warm not hot!) to vaporize water could help too maby. No warranty here!

dertester123 you may have found the real cause of the problem, but I'll have to test more before I can confirm.
Cheers.
Gz

i have been having the same problem lately and i must say, i'm pretty sure it's about the sweaty fingers! i have read on other sites that the capacitive (?) screen is too sensitive and that many are experiencing these problems, especially during summer!

JimWest7997 said:
i have been having the same problem lately and i must say, i'm pretty sure it's about the sweaty fingers! i have read on other sites that the capacitive (?) screen is too sensitive and that many are experiencing these problems, especially during summer!
Click to expand...
Click to collapse
Just place some waterdrops on the display or use it with fingers that you put some lotion on....
Problem is when it gets under the display, but thats rather uncommon i hope;D
I case its just just sweaty fingers, what are pants for?

I have the same problem but it only happens in my music app. Could this be causedby a virus of some sort?

vietnameseJames said:
I have the same problem but it only happens in my music app. Could this be causedby a virus of some sort?
Click to expand...
Click to collapse
are you running android ics? In ics they changed the input slightly i heard, and maby its not ported correctly...
When using another music app or switching to generally other apps while music plays everything is okay?
I dont think its a virus or something, most of them want to spy or change userdata and not annoy you

I thought I had found the cause of my problem, but I can't confirm it, as this problem hasn't appeared since the middle of May, when I followed dertester12's advice to massage the screen on the corners!
But I noticed a spot in the middle of my touch screen where the "glass" seems to "touch" or to be glued to something underneath it. This spot is till here today, but despite of that, the problem is not occuring now. I'll try to attach photos of that.
So to sum it up, I'm still not sure about what caused the problem...

grendizerus said:
I thought I had found the cause of my problem, but I can't confirm it, as this problem hasn't appeared since the middle of May, when I followed dertester12's advice to massage the screen on the corners!
But I noticed a spot in the middle of my touch screen where the "glass" seems to "touch" or to be glued to something underneath it. This spot is till here today, but despite of that, the problem is not occuring now. I'll try to attach photos of that.
So to sum it up, I'm still not sure about what caused the problem...
Click to expand...
Click to collapse
Did you disassemble your screen before?
Sent from my T9193 using xda premium

Nope. You think something got under the touch screen?

hengsheng120 said:
Did you disassemble your screen before?
Sent from my T9193 using xda premium
Click to expand...
Click to collapse
I'll dig out the topic.
Hangsheng I have the same problem as described at the beginning, but mine handset had replaced touchscreen with lcd panel.
What it could be the cause of this behaviour?

fikthor said:
I'll dig out the topic.
Hangsheng I have the same problem as described at the beginning, but mine handset had replaced touchscreen with lcd panel.
What it could be the cause of this behaviour?
Click to expand...
Click to collapse
Well the touchscreen must be isolated from the display. Therefore they put some blue glue at the area over the buttons where the HTC logo is. For me I used alcohol to clean the touchscreen as I replaced it and had the problem that when pressure was added the layer of glue was to thin to isolate and gave me fake inputs.
You can test by massaging this area.
Also the contacts on the backside of the screen must be isolated to the housing and the screen. I could think that when you soldered the stock isolation thinned out too..
Last but not least touchscreen, display and housing must be grounded correctly. Therefore all parts are wrapped in metallic foil at the edges... To connect them..
As the touch screen is very sensitive to even little currents its often hard to find the problem as it could also be a totally different cause.
All the above mentioned points should be checked and are relatively easy to fix. But it needs total disassembly what - especially to old devices- has a risk.
Risks are:
That damn flex cables are old and tend to break. The buttons have small tapes on top that come off easily and never go back again... And many more things that break when dis- and reassembled to often.
Sometimes it's cheaper to sell defect HD2 and buy new/used one..
On eBay you often get very good prices for defective HD2..
Gesendet von meinem HTC HD2 mit Tapatalk 2

Odp: [Q] My HTC HD2 is going berserk
The thing is every issue dissappear when it's on WinMob. I cannot pass this behaviour so decided to switch handsets. HD2 was very good phone.
Sent from my GT-N7100 using xda app-developers app

[Q] Screen flicker - suspected hardware problem

Greetings,
I tried to search for this problem on this forum but I couldn't find anything specific to this device.
The tablet works fine in all aspects, except the screen flickers when the aluminum back is stressed, i.e. when its being held. The tablet screen will flicker in brightness as the back is pressed.
Usually the most reliable way to reproduce the problem is to flex the tablet, as if you were trying to split a piece of plastic into two by gradually flexing it until it breaks.
Therefore, I have concluded it is a hardware problem, but I don't know exactly what.
I apologize if I'm difficult to understand, and if you need any clarification, let me know.
Thank you everyone for your time.
-Kevin

ktong747 said:
Greetings,
I tried to search for this problem on this forum but I couldn't find anything specific to this device.
The tablet works fine in all aspects, except the screen flickers when the aluminum back is stressed, i.e. when its being held. The tablet screen will flicker in brightness as the back is pressed.
Usually the most reliable way to reproduce the problem is to flex the tablet, as if you were trying to split a piece of plastic into two by gradually flexing it until it breaks.
Therefore, I have concluded it is a hardware problem, but I don't know exactly what.
I apologize if I'm difficult to understand, and if you need any clarification, let me know.
Thank you everyone for your time.
-Kevin
Click to expand...
Click to collapse
Hey Kevin,
Yeah, seems like a hardware issue. But I advise not to "flex" the back too much
Probably could be 2 things.
1. Loose connector for the digitizer
2. Bad digitizer
3. Something grounding out against the case.
So my guess would be to spit the case apart. You can find videos on Google Search showing the procedure at You Tube. Then a good inspection of components, paying attention to connectors and the boards (for cracking).
I saw the other day that there are plenty of parts available for the 500, like digitizers, display glass and several other items. Check E-bay.
MD

Moscow Desire said:
Hey Kevin,
Yeah, seems like a hardware issue. But I advise not to "flex" the back too much
Probably could be 2 things.
1. Loose connector for the digitizer
2. Bad digitizer
3. Something grounding out against the case.
So my guess would be to spit the case apart. You can find videos on Google Search showing the procedure at You Tube. Then a good inspection of components, paying attention to connectors and the boards (for cracking).
I saw the other day that there are plenty of parts available for the 500, like digitizers, display glass and several other items. Check E-bay.
MD
Click to expand...
Click to collapse
Thanks for your advice Moscow Desire. I've taken the back off before but noticed nothing unusual. Should I just take every component that can be separated out and inspect it? Sounds like a recipe for disaster for an inexperienced person like me.

ktong747 said:
Thanks for your advice Moscow Desire. I've taken the back off before but noticed nothing unusual. Should I just take every component that can be separated out and inspect it? Sounds like a recipe for disaster for an inexperienced person like me.
Click to expand...
Click to collapse
Hi Moscow Desire,
I have taken my tablet apart with the instruction from the videos but I didn't see anything that is loosen so far. Do you think I will need to unscrew everything until I take out the screen to know what's wrong? My screen keeps flickering with white lines at the edge of the screen and it's really annoying. :crying:
Thanks!

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.

screen yellowing

So last night while using my phone with a little light from a lamp, I notice some yellowing along both sides of my phone. Also it appears to have some after images left there as well or screen burn. I'm not too sure as to which it is. As of this morning I can't really tell if it's still there. Anyone else have this issue, and if so what did you end up doing?

johnny tsunami said:
So last night while using my phone with a little light from a lamp, I notice some yellowing along both sides of my phone. Also it appears to have some after images left there as well or screen burn. I'm not too sure as to which it is. As of this morning I can't really tell if it's still there. Anyone else have this issue, and if so what did you end up doing?
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I can't tell you that my V20 has done this, but my surface 3 had the same exact issue. For one thing, it can't be burn in if that's what you mean due to the LCD nature of the screen (LCDs can't be burnt in). Anyways, the issue with my surface was a screen adhesion issue (the glue on the edges sort of melted a bit) so I just contacted customer support for free service. Afterwards, they let me ship it to them and instead of getting my surface back, they sent me a refurbished replacement. If you contact customer service, I imagine something similar will happen. Hope I could help.