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concave touch screen !

Hi
can anybody tell me how to resolve that problem ??
Unfortunately I had the habbit of keeping my phone in my jeans butt pocket, even when I switched to Diamond touch screened phone I kept doing that, but I realized that the screen got some slight concavity on it that even reflects as irregular pattern of colors seen only when screen switched off or when on but from a sharp viewing angle.
How to correct that ??? any ideas ???
Thanks

Replace the screen.
Change phone carrying habits.
It is a hardware issue, so not easy to fix. Beware that the screen is multi layered (touch screen) so it is possible that any physical shape alterations will seriously change the way it works. It happens that screens go weird when there's dust & debris between screen and the outside body of the phone...

Thanks for your reply
Is it worth it to replace the screen ?? or maybe its better off selling it for less cash then buy another one ?
I have noticed that there is a matrix of visible small dots 2 mm apart from each other, I guess this is the touch-sensing system.

Yeah, the touch-sensitive layer got squished. It should still work fine for now, but over time the touch sensitivity may get worse. The only way to fix it is to get it replaced. If it's still under warranty you should replace it that way, better than selling and buying a completely new Diamond. If not, you can replace it yourself with this: http://mobile.brando.com.hk/prod_detail.php?prod_id=03449&dept_id=088&cat_id=0695

Thanks fhsieh for the info and link.
I will replace it when it fails eventually, now I am releaved and I know that I've got a solution

**~htc touch screen not working!!!!~**

hi,
my touch diamond 2's touch screen stop working randomly ( i think that i applied too much pressure on 1 spot for too long). I can see the touch screen dots on the area. I am just wondering if I were to repair this, would i be replacing the DIGITIZER or the TOUCH SCREEN.
Thank you soo much

warranty might cover that. It might not be your fault

I have decided to fix the part myself since I do not wish to ship the part to their location in the US. Any idea if its the digitizer or the LCD screen that i should be replacing?

jasonngu1991 said:
I have decided to fix the part myself since I do not wish to ship the part to their location in the US. Any idea if its the digitizer or the LCD screen that i should be replacing?
Click to expand...
Click to collapse
Search the Wiki, there are dismantle instructions.

I had the same on my display, and was able to move the dark spot to the edges where it disappeared.
I moved it with scratching it with my nail very gently applying some pressure.
In Europe HTC offers a pickup and return warranty, is that different in the US? If it is the same I would send it in to HTC for replacement, since it might happen again pretty soon....
I already have 3 screens replaced :-(

jason, did u manage to fix this? i have the exact same problem and pushing the "bubbles" towards the edge of the screen didn't help. my screen is still unresponsive..

mercurialcc said:
jason, did u manage to fix this? i have the exact same problem and pushing the "bubbles" towards the edge of the screen didn't help. my screen is still unresponsive..
Click to expand...
Click to collapse
Try applying duct tape to it repeatedly until you get it back.

Yes, both
I recently replaced the Touch Screen on my Diamond 2. Same problem; spots that "stick" in the middle. I used to solve this by running both my thumbs down the sides of the screen to "puff up" the low areas in the middle.
The part you want is actually called a "Digitizer Touch Screen" on eBay, cheap too. Prepare to spend about 2 hours fiddling with very tiny screws, connections and glue to tackle the job.
The hardest part for me was actually getting the Touch Screen to work; it seemed to be calibrated in mirror-image AND turned 90 degrees sideways, which made getting to the calibration functionality an extremely frustrating experience. I spend another 3 hours on that, but now I've got a perfect phone again, since I ordered a new case as well. No use taking the entire phone apart and then rebuilding with a molested outer shell...

maybe you should reset it

Working Solution Till Now
Hello Friends,
I have TD2 mobile and today I had same issue. I was thinking it was because of the weather or some.
I remember it did happend several time before, but when I restart the device several time it does work. So I was ignoring.... But today it did not work.. looks like going toward end... So I did soft and hard reset without and that did not helped me.
So I switched off the mobile, "heated" the touch screen gently with my hand for 1 min and started the mobile again and it worked for me .
Not sure if this is a solution, but will work.
May be I will contact Service Center here in Hyderbad and see what is wrong here?
Hope this will help you all...
Thanks.

Solution
Okay, I've just had this problem with an HTC Touch, and I think this works with any HTC that has a "digitizer" rather than an all-in-one touchscreen (I think newer phones have digitisers).
I'm not sure if this will always work, but I've just done it - sometimes the inactive touch screen is "broken" because the layers are stuck together (so the phone can't tell where the touch is, hence unresponsive). With mine, I looked at the screen side on and could see a kind of "oily" patch in the light.
The solution is to get masking/gaffa tape - the very sticky brown one. Stick it down on the screen/digitizer and then keep pulling it off - this pulls the layers from each other. I kept repeating this lots before it worked - and in the end I pulled the top layer completely off (I think you should pull from the top of the phone, as the layers need to be attached at the bottom of the screen/digitizer). Once it pulled away, I gently lay it back down (after panicking!!) and hey presto it started working again.
Good luck!

Digitizer replaced but still not working
The touch screen on my Touch Diamond2 stopped responding to my touch (or the stylus) and I tried everything including removing and replacing the digitizer bus just in case the connection was the issue. But all to no avail. Finally I decided to replace the digitizer (touch screen)
The problem for me is that it made no difference. The new digitizer doesn't respond to my touch either. The problem is apparently somewhere else.
If anyone has encountered this problem and has a solution I would be grateful to know what it is.
Thanks in advance

Replace the Touch Diamond2 Digitizer touch screen.
I recently replaced the digitizer (touch screen) on my HTC Touch Diamond2. Since I found on the net, no instructions for replacing the actual digitizer, I thought I might include some here.
It was relatively easy to fit. The only difficulty I encountered was a lack of information about how to actually remove the old one. The various instruction sets found on the web all stop once the screen is removed. But the digitizer is not covered by these instructions. The digitizer is bonded to a thin glass immediately under your screen protector (if you have one fitted) and after the screen is removed following instructions you will find on the net, the digitizer and the thin glass sheet that it is bonded to must be prized off from the front of the housing. The digitizer separates from the glass easily, but the glass is securely bonded to the housing with a silicon glue. It must be prized off by gently lifting a corner and applying a little upward pressure allowing the glue to slowly and gently let go. Don't be surprised if the glass breaks during the process. Once off it is a simple matter to press the new one in place. Just remember to start by slipping the connector bus (cable) through the narrow slot between the metal outer housing and the inner components. I used a set of tweezers to poke it through. DO IT FIRST before pressing the digitizer into place.
Okay, as I said the process was easy and took about 15 minutes all up.

prabhat said:
Hello Friends,
I have TD2 mobile and today I had same issue. I was thinking it was because of the weather or some.
I remember it did happend several time before, but when I restart the device several time it does work. So I was ignoring.... But today it did not work.. looks like going toward end... So I did soft and hard reset without and that did not helped me.
So I switched off the mobile, "heated" the touch screen gently with my hand for 1 min and started the mobile again and it worked for me .
Not sure if this is a solution, but will work.
May be I will contact Service Center here in Hyderbad and see what is wrong here?
Hope this will help you all...
Thanks.
Click to expand...
Click to collapse
i tried this and worked for me .
i removed the screen protector and switched off the mobile and heated the screen with my thumb and it worked again
thank you prabhat

and i'm using Topaz touch diamond 2
with photon ROM 1.6

Shoofty said:
I recently replaced the digitizer (touch screen) on my HTC Touch Diamond2. Since I found on the net, no instructions for replacing the actual digitizer, I thought I might include some here.
It was relatively easy to fit. The only difficulty I encountered was a lack of information about how to actually remove the old one. The various instruction sets found on the web all stop once the screen is removed. But the digitizer is not covered by these instructions. The digitizer is bonded to a thin glass immediately under your screen protector (if you have one fitted) and after the screen is removed following instructions you will find on the net, the digitizer and the thin glass sheet that it is bonded to must be prized off from the front of the housing. The digitizer separates from the glass easily, but the glass is securely bonded to the housing with a silicon glue. It must be prized off by gently lifting a corner and applying a little upward pressure allowing the glue to slowly and gently let go. Don't be surprised if the glass breaks during the process. Once off it is a simple matter to press the new one in place. Just remember to start by slipping the connector bus (cable) through the narrow slot between the metal outer housing and the inner components. I used a set of tweezers to poke it through. DO IT FIRST before pressing the digitizer into place.
Okay, as I said the process was easy and took about 15 minutes all up.
Click to expand...
Click to collapse
Thanks for the heads up on the glass part mate. Just replaced my TD2 digitizer too. Kinda freaked out at first when the glass split.. haha
Anyway, just wanna 1 more info. When removing the old digitizer, it'll be easier if the front housing was heated first (with a hairdryer on full or a heatgun) to soften the glue. It'll be easier to remove afterwards.
Word of warning though. Only head the housing when REMOVING the old digitizer, DO NOT use this method when applying the new one. The digitizer dies because of heat. Heat is what causes the newton rings issue.

Shoofty said:
The touch screen on my Touch Diamond2 stopped responding to my touch (or the stylus) and I tried everything including removing and replacing the digitizer bus just in case the connection was the issue. But all to no avail. Finally I decided to replace the digitizer (touch screen)
The problem for me is that it made no difference. The new digitizer doesn't respond to my touch either. The problem is apparently somewhere else.
If anyone has encountered this problem and has a solution I would be grateful to know what it is.
Thanks in advance
Click to expand...
Click to collapse
I have the same problema with my Diamond2. I have also changed the digitalizer with no success It is still not responding to any kind of touch.
Shoofty, did you manage to fix yours?
Thanks in advance,
Javier

Fixing TD2 touch screen
TD2 touch screen is a common problem I guess.
Symptoms are :
1- Touch screen does not respond sometimes
2- You can see a grease like layer under the touch screen
3- Sometimes if you look closer to the screen at some part you can see a a liquidized small area.
Solutions:
1- If you see the liquidized dot on the screen turn off the display and try to rub it with your finger until it disappears. turn it on again and try if it works. I guess heating with the finger as other peeople here suggest does the same thing. However this is a temporary solution. Your touchscreen will die at some date. I used my TD2 for 8-9 months using this method. But at the end touchscreen died.
2- Replace the digitzer or complete frontcover. Actually this might be easier than you think. I replaced mine in half an hour. I bought a front cover which includes the digitzer (http://www.ebay.de/itm/Original-HTC...zer_Ersatzteile_Werkzeuge&hash=item4cfe6f78dc) and openning tools from ebay. Dimanıond 2 disassemble and assemble videos on youtube were very helpful. I strongly suggest to buy the complete frontcover (inc digitzer). It makes replace process much easier and gives the device a brand new look. My old front cover was worn from the corners (which is also very commpn problem of TD2). Now it looks brand new. No strach on the display and body.

Thnks Ozkarah.
I happened to realize that, surprisingly, the touch screen of my HD2 started working if I heated it up with a hairdryer. So, I think something else is wrong beyond the touch screen, probably the connector to the main board of the mobile. It might expand once it is hot and that is why it starts working. In any case, I think that is beyond repair

HTC screen calibration
2Fresh said:
I recently replaced the Touch Screen on my Diamond 2. Same problem; spots that "stick" in the middle. I used to solve this by running both my thumbs down the sides of the screen to "puff up" the low areas in the middle.
The part you want is actually called a "Digitizer Touch Screen" on eBay, cheap too. Prepare to spend about 2 hours fiddling with very tiny screws, connections and glue to tackle the job.
The hardest part for me was actually getting the Touch Screen to work; it seemed to be calibrated in mirror-image AND turned 90 degrees sideways, which made getting to the calibration functionality an extremely frustrating experience. I spend another 3 hours on that, but now I've got a perfect phone again, since I ordered a new case as well. No use taking the entire phone apart and then rebuilding with a molested outer shell...
Click to expand...
Click to collapse
Hi,
I have same problem when I changed new screen (screen is calibrated in mirror-image AND turned 90 degrees sideways).
Could tell step by step how you get your screen calibrated?
Thanks

[Q] display hypersensitive

Hi!
My phone got a broken screen, but I got a replacement device from the insurance.
Trouble is, after a while with screen on the screen seems to become hypersensitive - it's nearly impossible to enter text through the display keyboard or just to zoom and move a webpage
After switching the screen off and back on again immediately it's OK again for a while.
Anyone else seeing this behaviour? I reckon it's a hardware problem, but maybe someone has a different explanation for this problem?

Do you have any Screen Protectors? Just the Original ASF?

I didn't change anything with the phone except for the ROM (can't stand stock ), so it's still the original one.
What does ASF mean?

husky69 said:
I didn't change anything with the phone except for the ROM (can't stand stock ), so it's still the original one.
Click to expand...
Click to collapse
Do you have this problem with any rom?
husky69 said:
What does ASF mean?
Click to expand...
Click to collapse
You should have the Anti-Shutter Film on your screen with the Sony Logo, many reported sensitivity problem after remove it. If you have ASF sometime apply another Anti-Glare Screen Protector on it can help (like in my case) with the touch screen.

[Q] Touch screen issue

Well, i have noticed that if i lift my finger a little bit from the screen (a few mm), this one is like if i still touching it only responses when a lift more my finger, so i cant type fast, anyone else is having this issue?
Sorry for my bad english

Yes, do a search in questions sub forum. But several people including myself have this Phantom touch issue. Screen is too sensitive.

As someone who uses phone as Mini Computer for.presentations , proposals with photos sent in desktop
Email- this could be a problem for typing.
Is sensitivity reduced tempered glass protector ?

thunderfox1 said:
Well, i have noticed that if i lift my finger a little bit from the screen (a few mm), this one is like if i still touching it only responses when a lift more my finger, so i cant type fast, anyone else is having this issue?
Sorry for my bad english
Click to expand...
Click to collapse
Even at over a full mm? Is glove mode enabled by any chance?

degraaff said:
Even at over a full mm? Is glove mode enabled by any chance?
Click to expand...
Click to collapse
Hmm, the glove mode is disabled, and i'm having this issue even whith a crystal screen protector , This is kinda disappointing, anyway glad to know that i'm not the only one with this problem, i hope it fixed soon.

proximity sensor issues? att varient

Anyone notice their proximity sensor is very flaky?
The screen will not shut off when I close my wallet cover over it. It will shut off when I start talking on the phone, but then will not "wake" when I move it away to hang up. I actually couldnt find anyway to wake it up so i just waited until the other side hung up (it was a recorded msg).
Any ideas? I may just shut off the proximity sensor and wait till I can swap it in store. Of course this was right after i installed a tempered glass screen .... would that impact it at all??thx!

http://forum.xda-developers.com/showthread.php?t=2922645
It seems that certain brands of tempered glass screen protectors are causing the same issue that you describe.

k2buckley said:
http://forum.xda-developers.com/showthread.php?t=2922645
It seems that certain brands of tempered glass screen protectors are causing the same issue that you describe.
Click to expand...
Click to collapse
thanks. mine was from extremeguard. i removed it. wait and see until the next person calls me. i contacted ATT and they said i have 11 days to return it (no exchanges available), and to try a master reset first

didnt seem to work after moving the glass. did a full reset and now it works....
ill try the glass again tomrrow and see if it stops working again. bizarre.

k2buckley said:
http://forum.xda-developers.com/showthread.php?t=2922645
It seems that certain brands of tempered glass screen protectors are causing the same issue that you describe.
Click to expand...
Click to collapse
this fixed the problem. thank you for saving me time and anguish returning the phone

eb50 said:
this fixed the problem. thank you for saving me time and anguish returning the phone
Click to expand...
Click to collapse
You're welcome. I'm glad you got it straightened out

k2buckley said:
You're welcome. I'm glad you got it straightened out
Click to expand...
Click to collapse
My tempered glass has a cutout for the 2 sensors on the left, are there any sensors on the right of the speaker? My proximity sensor also is not working. I will probably return my tempered glass also if this is the case...

This is happening to me and I don't have a screen protector. It's really getting annoying.

I'm having issues as well.... Not using any screen protector or whatsoever...

Yeh same here.. Looks like the sensor is maybe too sensitive. Hope sw can fix this.

+1 for the issue.
Cannot hang up after a call because the screen is black. Have to push the power button to wake it up first.
No screen protector.

mikkelwe said:
+1 for the issue.
Cannot hang up after a call because the screen is black. Have to push the power button to wake it up first.
No screen protector.
Click to expand...
Click to collapse
I just restored a backup of the original rom and the problem went away. So it's probably an issue with cm. Was on cm nightly from 01-13-2014

Did you try going to settings , accessibility , power button ends call, toggle that on and off.
After completing the above mentioned step. Reboot your phone and try making a call. I hope the issue get resolved.
I tried this step on an unrooted phone, which was recieved just yesterday.
I got this fix from some other thread.

Is there a way to turn off proximity sensor without rooting? Looked through setting and must have missed it. Thanks in advance.

Still having this issue as well. I tried toggling the power button option then restarting my phone, it seems to help for a very short period of time (few hours maybe). I have tried several different screen protectors, the most recent ones having a cut out for the sensor and there is a decent gap between the two. Reloaded my phone several times and installed 5.0.1
The sensor doesn't really work to turn on the display when I go to pickup the phone and is spotty when making a call. In the first minute or so of the call, I can take the phone away from my head and it will register, illuminating the screen, after that it stops working.
I can't understand how it could be the screen protector at this point, it's no where close to obstructing the sensor.

Guess it's time to send this thing back. I must be nuts because I keep trying this power button suggestion and it just doesn't work for me longer than a few hours.

Same here, using a plastic rinkage screen protector no bubbles in it and the edge falls a good few MM from the sensor.
CM12 nightly builds still do it I'm on the 2/19th build with Franco kernel.

Best solution is get rid of the junk and get a Note 4. Mine is such a crap phone. It doesn't even do anything special except be big.

Hi,
Just to tell that I've got this pb since I installed the Spigen crystal protection, not even a tempered glass.
Before that I still had the original cheap film you get when you unbox, with the white corner.. the crystal is really nicer but it screws the sensor...

I believe it is software related. I have a tempered glass screen protector that does not cover the proximity sensor. I have noticed that about 60% of the time the screen does not turn back on when I move the phone away from my head. It seems to happen more when the phone call is longer than one minute. I also had a tempered glass protector that covered the sensor and had the same behavior. I did use an app to test the proximity sensor and with both screen protectors it worked 100% of the time using the app.
Sent from my Nexus 6 using XDA Premium HD app