Strange problem with touchscreen - Sony Xperia M2

Hello, guys.
Recently, I dropped my M2 on the street, resulting in cracked touchscreen and lcd. Replaced both the touch and the lcd, everything seemed normal until I noticed that the middle part of the touch (a line going from the left to the right, around 1cm height) doesn't work, it just doesn't respond. Later, I got another new touchscreen and same story - same part of the screen doesn't work.
Maybe we have some kind of defect touch screens here in Bulgarian stores? Though I bought the two touches from two seperate stores. Or it's possible that it's something with the lcd? Even though it works normally, no strange behavior, no black spots, scratches or anything. Or could it be a software problem? Using Android 5.0.
Thanks in advance.

More likely to be motherboard problem if it's the same with 2 different screens being installed

Thanks for your answer.
One thing I forgot to mention - when testing the screen in Sony's Sketch app or in the service menu, if I run my finger from the top to the bottom, or the opposite way quickly, sometimes, the lines my finger makes don't get cut, i.e. it's like the screen is functioning properly, with no dead spots. What does this mean?

According to Sony support, it could be a compatibility issue between the phone/touchscreen/LCD, what do you think?

Related

Problem after touchscreen replacement (original one)

Please help me with this touch screen problem:
In my HTC sensation 4G touchscreen has been replaced (together with display) and as a result I've noticed that device no longer registers fast swipes. No lag or other problems, just when you move finger fast - touchscreen fails to register it. In multitouch tests circle disappears during fast movements and in games like fruit ninja there is no line after the finger. Guys who helped me tried several digitizers they had in stock and all of them had this same problem.
My original digitizer and these ones are probably different models because mine was T-mobile and these have HTC written in the middle.
So I wanted to ask did somebody stumble upon this issue and is there a solution?
Or is it possible that all new ones they've tried are bad?
tenow said:
Please help me with this touch screen problem:
In my HTC sensation 4G touchscreen has been replaced (together with display) and as a result I've noticed that device no longer registers fast swipes. No lag or other problems, just when you move finger fast - touchscreen fails to register it. In multitouch tests circle disappears during fast movements and in games like fruit ninja there is no line after the finger. Guys who helped me tried several digitizers they had in stock and all of them had this same problem.
My original digitizer and these ones are probably different models because mine was T-mobile and these have HTC written in the middle.
So I wanted to ask did somebody stumble upon this issue and is there a solution?
Or is it possible that all new ones they've tried are bad?
Click to expand...
Click to collapse
i have similar issue. my screen doesn't register any touch on the left half, unless i touch the right half a few times first...:/ my digitizer got changed as well. but after that all is fine...only after i turn off the screen, then on again.....it's a little annoying, but not making my device useless at least.
as for to what's the cause, possibly each phone needs a special digitzer...as for the solution, i tried many, nothing worked...
I read of someone with a similar problem, they took screen apart again and found the wire was slightly pinched, they said they carefully put wires back in place and paid extra Attention to the wires and problem was solved. Now, I personally have not tried it but I did read this fix. Maybe it might help, worth a try? Hope this helps!
Sent from my HTC Sensation 4G
I'm on the same boat. Dropped it and cracked the screen. So I bought a replacement screen and replaced it myself. Its the one with just the HTC in the middle. (I'm T-mobile) Well now, like yours, it sucks at registering touch accurately. I have to press solidly on the screen to swipe screens or to open apps. Texting sucks because i have to press on each letter good or else it picks the wrong letter. I've searched for a solution as many have had this issue but seems like they just returned it for a new one. I cant since i replaced the screen and voided my warranty. I have taken it apart twice and carefully reassembled it making sure everything is good and snug and in the right place.....Still no love....Sucks! If anyone can help, it would be much appreciated as i have hit a dead end with this issue. Thanks.
Fisherman619 said:
I'm on the same boat. Dropped it and cracked the screen. So I bought a replacement screen and replaced it myself. Its the one with just the HTC in the middle. (I'm T-mobile) Well now, like yours, it sucks at registering touch accurately. I have to press solidly on the screen to swipe screens or to open apps. Texting sucks because i have to press on each letter good or else it picks the wrong letter. I've searched for a solution as many have had this issue but seems like they just returned it for a new one. I cant since i replaced the screen and voided my warranty. I have taken it apart twice and carefully reassembled it making sure everything is good and snug and in the right place.....Still no love....Sucks! If anyone can help, it would be much appreciated as i have hit a dead end with this issue. Thanks.
Click to expand...
Click to collapse
this is quite different problem. Sensitivity of my display is OK unless you move fast. In your case it seems to be the problem of this exact screen. Try downloading SGS Touchscreen Booster from Play Store and play with settings.

[Q] New joinee-About HTC one X issues

Dear members,
I would like to know the truth behind the issues faced by the HTC one X, which I read in many websites across the internet(and few here)
I was decided to get one for me untill last week, but the issues what I read for one X confused me.The issues that I came across was;
over heating(guess its obvious for smart phones)
Wi-fi issues(death grip issue)
screen/display flickering,
yellow spots on display,
Frequent black screens,
Restart troubles,
Music player issues(when music player stops when gallery is used)
Taiwan made phone's facing issues over Chineese made ones.
Kindly address these issues ASAP, as I had already made up my mind to go for HOX, so that I can buy one with relaxed mind...
I cant think of any other smartphones as of now.
Thanks in advance
Arun J
India
I second this post and would really like to know how current owners are experiencing these issues.
Mine is a Rogers HTC One X.
Got it about 3 weeks ago. Just sent it in for repair, just outside the 14 day exchange range
overheating wise, yes, it can get a bit warm at use but same for any small tightly packed smartphone. I didn't have any wifi issues or any issues you had stated.
The problem with mine was holding the phone vertically. About half way down, there was a 1cm horizontal strip that did not react to touch. Just where the ok and cancel options pop up on some games/apps. You would need to rotate the screen so you could "tap" those buttons and get a reaction.
I turned on the developer mode and the mouse tracking/button press options and you can trace your finger down the screen and you can see where it stops then continues with a 1cm or so gap between where it wasn't responsive. This gap was the entire width of the screen not just a spot or two in that 1cm zone.
The phone was never dropped, bent, sat on etc. Mint screen and case, no case or touchscreen protection. This issue occurred quite suddenly about 16 days in, only noticed it when some games didn't let me exit when hitting the cancel options. Originally thought the game or the app was at issue. Then realized it was the touch screen. Did a full reset a few times, same problems. Now patiently awaiting for my phone back. Rogers phone/loaner suck as well, gave me a Nokia C3 POS as a loaner. Using my old motorola milestone instead.

Touchscreen faulty?

Guys,
Recently I broke my touchscreen, but ordered a new one and replaced it myself. Almost everything is fine, except one approximately 1cm wide line near the top of the screen. When I enabled the show touches in developers options, it showed that the screen is registering touches above or under that range and even two touches, when I tap in the middle of the range. Do you think that the replacement part is broken or only a cable needs to be reseated?

Strange Problem With Touch Screen

Hello everyone I hope on answer.I bought Desire S a few days ago,and the phone is in excellent condition, with regard to aesthetics is now the problem is the display screen is Unscratched "working" at the top works but the touch screen reacts strangely like skips as if that part is dead, it means giving the opposing functions.I think Digitazer is changed as can be seen at the bottom of the screen to display the screen out of the case but not digitazer, bulging a little and there a little dust under digitazer, signs changed one hundred percent, now I'm interested in is not yet up to the digitazera or software, he now works on 2.3.5 sense 3.0,Sorry for bad English.

[Q] Dropped my OPO, now a section of the touchscreen is unresponsive

Since I have had the OPO I have had intermittent issues with the touchscreen requiring reboot to solve. Since upgrading to CM12 the issues seem to have largely subsided but last night I dropped the handset from about 18 inches off the ground. The top left corner of the screen shows a bit of cracking on the glass and now I notice that there is an area in about 1/3 of the touchscreen that is unresponsive. The lower and upper parts of the screen work but now there are some apps and functions I cannot use with the touchscreen and I notice I have having a lot of trouble with the pattern unlock screen as well.
My question is whether the entire digitizer screen will need to be replaced or if there is a possibility that the ribbon connectors or some other connection is possibly causing this issue. I have attached here a pic of the physical damage and a screencast of multitouch test that I ran to demonstrate the area affected. It seems to start around y0=400 and continue to y0=1100 or so which is quite frustrating. In the video I am just running my finger up and down the screen and also across diagonally to demonstrate the problem areas.
Apparently I cannot post Youtube links since I am a new member but the video is on there posted under
"OPO touch screen issues after drop"
Anyone with insight would be much appreciated as I certainly would not like to have to tear this phone down and replace the screen assembly.
I doubt it's a ribbon cable, otherwise your whole screen would be dodgy. I think you need a new digitizer + LCD.
Here's a link for the video you are trying to link to.
https://www.youtube.com/watch?v=hs9pLXvsG2Y&feature=youtu.be
Hope someone here has some good news for you.

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