Hi everyone!
The phone has bad ghost touch issue after a new screen was installed. And I am not able to pin point the cause.
Sometimes the issue is very bad with ghost touches more frequent with a ghost touches repeating under 1 second, sometimes the touches are much more rare. After the first installation I took the screen off and just reconnected without installing it and it had no ghost touch issues at the time but the issue returned when it was assembled.
Do you have any similar experience or idea what contact/connector/plug might cause the problem?
Thank you in advance!
I have tried to reinstall a full factory ROM but that did not help. The issue exists even on TWRP screen so I guess it must be a hardware problem.
Ghosting is a known issue with this phone. You can find many different solutions, but nearly all of them is about insulation.
The first method: Try to install some insulation under the main speaker. But be aware, if you put too much insulation there, you'll be unable to put back that plastic piece correctly.
The second method: Put some insulation onto the back of the screen like this.
The next two method are my own solutions to this problem, these fixed my ghost touch issues on my second Mi 9T Pro.
Fully assemble your phone, then place it on a completely flat surface with the screen pointing downwards. Now try and push each corner of the phone. It it remains stable, then move to the next idea. But if you feel that the phone is bent, then take a regular hair dryer, heat the phone with it's lowest mode everywhere for 5-10 minutes, then place something heavy on the back of the phone (like an older notebook or a desktop hard drive) until it cools down. Repeat the process if needed, but be careful, too much heat can cause other issues if you're not careful enough.
And the final solution: Remove the glass backplate, and the plastic cover with the main speaker. Then take a look at the bottom left corner of the phone, where you should see a hole in the frame, and some black insulation tape in this cutted hole. Remove that piece of tape, and gently push that orange-yellow circuit against the back of the screen. If it moves too much, you can try to wedge it with a piece of plastic.
I hope one of these solutions will help you to fix your screen. An extra tip for you: If any of these solutions work when the phone is fully assembled, don't try anything else, otherwise you'll risking to make the problem reappear.
Szatyor said:
take a regular hair dryer, heat the phone with it's lowest mode everywhere for 5-10 minutes
Click to expand...
Click to collapse
I wouldn't recommend hairdryer as without being careful it's easy to damage parts.
Someone, maybe IFIXIT came up with nice suggestion to use hand warmer and heat it with microwave. It's almost ideal solution, as it's not overheating and applies heat everywhere.
Disable three finger screenshots and ghost touch issues will be gone on 5 point touch displays(replacement)
MIUI 12 Fingerprint Unlock defective
After upgrading to MIUI 12 Global OTA yesterday, fingerprint unlock stopped working. When I select fingerprint unlock in settings to switch it on and enter my PIN, phone goes dark and restarts (MIUI splash screen). Any suggestions? Phone is stock...
forum.xda-developers.com
Related
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
Hi,
Last week I used to be outside with much rainy condition.
Though it never got totally under water, many times it's screen got wet with substantial rain drops.
Slowly, phone started misbehaving with following symptoms,
1. Around 10% of left side of touch screen doesn't show response. I enabled show touches from developer option and when I try to touch left side, say "a" letter in keyboard, it doesn't show touches and pointer jumps immediately to left edge.
2. Many times, I am not able to unlock phone as no touch are detected.
3. After unlock, many times though I am not touching phone, it shows couple of pointers (I enabled show touches in developer option to trace this) on left edge. It keeps moving resulting in erratic behavior, say screen zooms in and out, some icons clicked automatic, deleted automatic etc.
4. Sometimes I noticed that capacitive buttons are also not responding.
For all above, I have to off (not complete switch off)and on the phone. After few attempts, it becomes responding except point 1 above.
I have reflashed ROM (Vivikat) just to ensure it's not software issue.
Now it seems hardware issue with following two possibilities...
1. It's matter of some moisture in phone only. I have to try hard to dry out all moisture and phone will become responding.
2. Digitizer has some issue and may call for replacement (I don't want to do that...:crying.
Can you guys share your views/experience and advise?
RmatriX1218 said:
Hi,
Last week I used to be outside with much rainy condition.
Though it never got totally under water, many times it's screen got wet with substantial rain drops.
Slowly, phone started misbehaving with following symptoms,
1. Around 10% of left side of touch screen doesn't show response. I enabled show touches from developer option and when I try to touch left side, say "a" letter in keyboard, it doesn't show touches and pointer jumps immediately to left edge.
2. Many times, I am not able to unlock phone as no touch are detected.
3. After unlock, many times though I am not touching phone, it shows couple of pointers (I enabled show touches in developer option to trace this) on left edge. It keeps moving resulting in erratic behavior, say screen zooms in and out, some icons clicked automatic, deleted automatic etc.
4. Sometimes I noticed that capacitive buttons are also not responding.
For all above, I have to off (not complete switch off)and on the phone. After few attempts, it becomes responding except point 1 above.
I have reflashed ROM (Vivikat) just to ensure it's not software issue.
Now it seems hardware issue with following two possibilities...
1. It's matter of some moisture in phone only. I have to try hard to dry out all moisture and phone will become responding.
2. Digitizer has some issue and may call for replacement (I don't want to do that...:crying.
Can you guys share your views/experience and advise?
Click to expand...
Click to collapse
I just had touch screen issues but not with water or rain. It was the CPU. Almost whenever I overclocked it, I had touch screen issues. Both misbehaving and not behaving at all. Change the CPU frequency and restart the phone and see what happens. :good:
Eternalman said:
I just had touch screen issues but not with water or rain. It was the CPU. Almost whenever I overclocked it, I had touch screen issues. Both misbehaving and not behaving at all. Change the CPU frequency and restart the phone and see what happens. :good:
Click to expand...
Click to collapse
Thanks for your reply.
I have never overclocked my device.
However, I tried to underclocked it if by any chance, it can solve the issue.
But issue still there.
A small portion of left column on touch screen seems not responding or giving erratic behavior.
Does, water can damage digitizer to that extent that can not be recovered even after drying
Or, I should keep hope and wait more before I go for digitizer replacement
RmatriX1218 said:
Thanks for your reply.
I have never overclocked my device.
However, I tried to underclocked it if by any chance, it can solve the issue.
But issue still there.
A small portion of left column on touch screen seems not responding or giving erratic behavior.
Does, water can damage digitizer to that extent that can not be recovered even after drying
Or, I should keep hope and wait more before I go for digitizer replacement
Click to expand...
Click to collapse
If the digitizer is damaged, it is probably done. But if you can open the open, check the digitizer and see if there are any things stuck on it. My recommendation: ask an engineer to open it and clean it with the special spray they use to clean electronic parts. Maybe the water has had only a side effect and it will be fixed by cleaning the digitizer.
Eternalman said:
If the digitizer is damaged, it is probably done. But if you can open the open, check the digitizer and see if there are any things stuck on it. My recommendation: ask an engineer to open it and clean it with the special spray they use to clean electronic parts. Maybe the water has had only a side effect and it will be fixed by cleaning the digitizer.
Click to expand...
Click to collapse
Thanks.
I loved to hear your words, as I have still hope for resolving issue without replacement of digitizer :fingers-crossed:
I'll find some engineer to get it serviced....and post update.
RmatriX1218 said:
Thanks.
I loved to hear your words, as I have still hope for resolving issue without replacement of digitizer :fingers-crossed:
I'll find some engineer to get it serviced....and post update.
Click to expand...
Click to collapse
You're Welcome buddy! :highfive:
I'm visiting my parents and my mother's Z3 Compact has issue that screen goes black when call is made. It turned out proximity sensor reports always active on state. It seems to work when I push the top-left part of screen but I have no experience with fixing HW issues so I don't want to open the phone.
Instead I would be happy if it was possible to disable the proximity sensor altogether for now. Phone is bought as used and it seems to have bootloader unlocked so it wouldn't probably be a big deal to root it if that would help with fixing the issue. Any suggestions what to do? I tried some programs like Proximity Screen Off Lite which some people mentioned had done it for them but it seemed not to help me with this issue.
Hi. Proximity issue is result of peeling off screen from frame. Just take some epoxy glue and apply a little to the gab in the corner between frame and screen. Just watch out to not apply glue on proximity sensor, but only on the frame. After that take some clip to press it and left it for 24 hours to make sure glue get dry. Thats all. Of course You can also take apart whole phone and change whole glue adhesive under the screen but this one is quite harder than just apply some glue in gap between screen and frame.
Hello. I need a help about my nexus 6 if someone understand its inner components .
I replaced the screen and after that everything works well except serverals screen flickerings and artefacts which appears randomly, not very often, especially on in cold temperature or if I bend or touch the phone harder. After flickering screen stays black and I'm forced to press hard right upper corner of the phone or bend it a little bit to get it back to work. I think there must be some flex cable maybe not well fixed, can you please help me which one can make this issue? Or could it be something else? Maybe whole new LCD part defective? On which part of the phone should I focus if I will disassemble it again?
Thank you very much.
I only got this phone couple of days back and I am having a strange problem.
After installing a screen guard, touch stops working when phone is lying on flat surface. Once I lift the phone, touch starts working again. This happens regardless of the phone is plugged or not in a power socket.
Removing screen guard resolves this issue. However, I installed three different screen guards of glass, plastic and rubber types and with each type touch stops working on a flat surface.
I also did a factory reset but it didn't help. I tried with case on and off but the problem still persists.
At this point I am clueless how to resolve this issue as the phone doesn't seem to be defective as touch works flawlessly without a screen guard.
Same here!
With glass screen protector I have this issue... Can't really use it while device lying on a table.
Hi... Same here also... I thought the screen problem but not even lying on the table but when in charging lying on the table also can't touch... And sometimes it's stuck when to touch... My nokia 6 i think also like that... Maybe the screen curve is??
I have screen protector bought from Taobao, no such problem on my Nokia 8, TA-1004.
The screen protector is not glass type, but looks like plastic type.
Another strange observation: If I plug headphone jack when the phone is lying on flat surface, touch starts working again.
I suspect this entire thing has to do with metal/glass body of the phone and static electricity generated or magnetic field around touch panel.
I don't have much knowledge on this type of scientific stuff so I am not sure what the problem is.
It's the cheap glass protector and its glue that is messing up the touch screen.
references said:
It's the cheap glass protector and its glue that is messing up the touch screen.
Click to expand...
Click to collapse
I thought so. But what about headphone jack fixing touch issues with screen protector on?
Also, I have used similar quality screen guards on Moto and Huawei phones at my home and they don't have this issue.
Nitg16 said:
I thought so. But what about headphone jack fixing touch issues with screen protector on?
Also, I have used similar quality screen guards on Moto and Huawei phones at my home and they don't have this issue.
Click to expand...
Click to collapse
Are you connecting it to headphones or speakers?
Maybe the capacitive buttons doesn't like the glue and messes up everything? You could try enabling these in the Developer Options: Show taps & Pointer location. Let me know what is happening
references said:
Are you connecting it to headphones or speakers?
Maybe the capacitive buttons doesn't like the glue and messes up everything? You could try enabling these in the Developer Options: Show taps & Pointer location. Let me know what is happening
Click to expand...
Click to collapse
Headphones.
Enabled taps and pointer location. When phone is not touching a flat surface everything works fine. A curve is drawn on screen showing various gestures and a circle is drawn to show taps.
When lying on flat surface, if I use any touch gestures (e.g. scrolling) curve is drawn once in 5-6 attempts. Same with taps, circles appear only once in a while.
It is all very erratic. When I repeatedely try to tap anything, I receive ghost touces at a different part of screen.
Just noticed that I don't need headphone jack to fix touch. Blocking 3.5 mm port with one finger also works. This is truly getting weird.
Have you shown it to the Service Centre? Do they have any theories?
Sent from my Pixel 2 XL using XDA-Developers Legacy app
No, since the phone works perfectly without screen guard, I think service center guys will simply tell me to use it without a screen guard.
But I will indeed show them this problem after few days, though I am not sure they will understand or will be helpful in this regard.
I think I am reaching somewhere. The antenna reception at the top might be messing with touch.
What I have observed that touching the top of the phone or keeping any object or my hand one inch away from top of the phone fixes touch issues.
If I remove the object or move it farther than one inch, touch becomes messy again.
If I put little pressure on bottom chin of the phone, the top of the phone raises a bit so that the top antenna is not close to flat surface any more. This also fixes touch issues. Lowering top part of the phone brings back touch issues.
Anyone else with this issue can test this?
This video exactly describes my issue:
I found that many phones had these issues in past including oneplus, lg, sony and galaxy phones. Everywhere it was mentioned that it is a grounding issue which is unfortunately a hardware detect.
My phone is fortunately within replacement window. So I will contact the seller and request for a replacement.
I was thinking about the grounding, but when you mentioned you used headphones i thought it couldn't be the case.
Keep us updated if you get it replaced.
Just received the replacement. Same problem on the new one
I don't know what to do now. No other phones in my family have this problem and that includes $200 budget devices. This is flagship and much more costly.
I will just summarize different cases in which the touch issues on a flat surface gets fixed on my device:
- Inserting headphone jack (with screen gaurd applied on display).
- Inserting charging cable (with screen guard applied on display).
- Touching any part of the phone with finger including blocking the headphone jack (with screen guard applied).
- Removing the screen guard.
I am tired of this sh*t. I have tried all things possible to fix it. I have also wasted money on 6 different screen guards to fix this issue.
Some guys on galaxy s8 forums mentioned that modern curved phones uses a touchscreen placement mechanism different than traditional smartphones (they were also having the same problem).
There were two possible solutions mentioned:
Find a screen guard that has glue all over, not just around the edges or at dots. Which means that screen guard should stick to the screen 100% flat without any gap, air or bubbles.
Second solution was to use a flip cover to protect the screen and no screen guard.
I will go with second solution and buy a flip cover. I simply have no energy left to hunt for screen guards that work properly on Nokia 8. Not to say that you will never know if it works or not unless you purchase it and stick on your phone.
Hi, I'm writing from Italy and I've the same problem, exactly the same problem, solvable with the same solutions you have proposed: remove the protective film (a glass screen guard in my case).
I'm noticing that the touch screen works perfectly with the protective film only if the phone is connected via USB cable to the battery charger or to the pc.