So my HTC Desire Z, running CM7, has recently started acting up. There is a certain spot on my touch screen that, at random times, will act as if it's been touched. In GO SMS PRO, this occasionally lines up with a message, so I can see it press, pause, press, pause, etc. It's really annoying and screws up my usage of the phone. If I turn the screen off and then on again, it'll usually go away for a bit.
I've tried googling this issue but it's a touchy thing to phrase. (hehe, "touchy", I didn't even mean to do that!)
Does anybody know how I can find out what is causing this and/or how to fix it?
tl;dr: touch screen is "pressing" a specific spot at random
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NspktrSpacetime said:
So my HTC Desire Z, running CM7, has recently started acting up. There is a certain spot on my touch screen that, at random times, will act as if it's been touched. In GO SMS PRO, this occasionally lines up with a message, so I can see it press, pause, press, pause, etc. It's really annoying and screws up my usage of the phone. If I turn the screen off and then on again, it'll usually go away for a bit.
I've tried googling this issue but it's a touchy thing to phrase. (hehe, "touchy", I didn't even mean to do that!)
Does anybody know how I can find out what is causing this and/or how to fix it?
tl;dr: touch screen is "pressing" a specific spot at random
Click to expand...
Click to collapse
Its not rocket science is it bro ......... i figure you already can see the writing on the wall ...... sounds like your digitiser is on its way out. Quite a common issue on HTC's the capacitive touch screens just wear out.
My advice is backup, do a factory reset. see if problem persists, if so maybe try a different ROM (just for the sake of testing) see if problem persists.
If so you know its a hardware fault.
The good news is its really pretty easy to replace a digitiser in a Desire Z, I bought my own Desire Z 2nd hand with a dodgy digitiser (for about half its 2nd hand value) and replaced the digitiser in about 3 hours (that was going very slowly and being very careful)
Here is a link to the disassembly guides i used
https://www.youtube.com/watch?v=u-dR8CHEGjY&list=PLEBB8603769CE1417&index=16&feature=plpp_video
https://www.youtube.com/watch?v=SliyuYBvfic&list=PLEBB8603769CE1417&index=14&feature=plpp_video
Desire Z is one of the easiest phones i have ever worked on HTC obviously designed it to be repairable, almost everything is held by screws. So you don't have to 'unclip' loads of weak plastic crap.
All you need is to take it sloooooooowly and NEVER use much force, better to take an hour to do a job that should take 10mins than to rush or get impatient and break sh*t.
Good luck
Citizen
Update: So the "pressing" isn't really happening any more, but now there's a dead area that takes up an entire horizontal portion of the screen. I tested it out using a TouchTest app (picture 1) and the cut shows the dead portion. However, I tried it again later, and the dead portion moved up! I'm very confused, haha
Hello
I'm wondering just how durable an E3D is, namely the touch sensors inside it.
Recently I dropped the phone twice on a hard surface, and started noticing strange behaviours, firstly with the touch functions and secondly with the phone always freezing up.
Not always, but sometimes when typeing, it's just a mess, the capitalizer writes a letter, multi letter feature is inaccessible, basically none of the characters work like they were ment to. The only solution thus far is to lock and unlock the phone, which fixes the keyboard and the touch functionality.
Sometimes I can't unlock the phone because the ring moves 3 times shorter of a distance, opposed to when its working properly, and if so you can forget about dragging icons into the circle to answer a call, it just won't go in all the way.
Oh and the freezes, completely, none of the touch sensitive buttons or the screen responds, sometimes the screen is the only responsive part while the buttons are completely dead, a lock/unlock is needed to fix it short term, also the buttons led go out, becoming none responsive, sometimes the led is off, yet I still get a vibrational feedback (Have it enabled) So all these irregularities are new, it never happened before dropping the phone! The only touch sensitive related issue I had before, from time to time, was the unlock pattern gesture not tracing, instead of sticking to the first circle I begin at, it moves to the next I drag my finger over. (also fixable by relock/unlocking)
During this post the keyboard wasn't acting up thankfully, but its getting more and more irritating to lock and unlock the phone while typing a message to someone.
First I was suspecting a virus, or low memory causing this behaviour, but after thoroughly cleaning the phone and acquiring more memory (by closing apps) I was still having the problem.
Any idea how sensitive the components are if subject to repeated shock from a distance of 1.5m or 5ft?
What are my options here if the irregularities persist?
G4m3rHead said:
Hello
I'm wondering just how durable an E3D is, namely the touch sensors inside it.
Recently I dropped the phone twice on a hard surface, and started noticing strange behaviours, firstly with the touch functions and secondly with the phone always freezing up.
Not always, but sometimes when typeing, it's just a mess, the capitalizer writes a letter, multi letter feature is inaccessible, basically none of the characters work like they were ment to. The only solution thus far is to lock and unlock the phone, which fixes the keyboard and the touch functionality.
Sometimes I can't unlock the phone because the ring moves 3 times shorter of a distance, opposed to when its working properly, and if so you can forget about dragging icons into the circle to answer a call, it just won't go in all the way.
Oh and the freezes, completely, none of the touch sensitive buttons or the screen responds, sometimes the screen is the only responsive part while the buttons are completely dead, a lock/unlock is needed to fix it short term, also the buttons led go out, becoming none responsive, sometimes the led is off, yet I still get a vibrational feedback (Have it enabled) So all these irregularities are new, it never happened before dropping the phone! The only touch sensitive related issue I had before, from time to time, was the unlock pattern gesture not tracing, instead of sticking to the first circle I begin at, it moves to the next I drag my finger over. (also fixable by relock/unlocking)
During this post the keyboard wasn't acting up thankfully, but its getting more and more irritating to lock and unlock the phone while typing a message to someone.
First I was suspecting a virus, or low memory causing this behaviour, but after thoroughly cleaning the phone and acquiring more memory (by closing apps) I was still having the problem.
Any idea how sensitive the components are if subject to repeated shock from a distance of 1.5m or 5ft?
What are my options here if the irregularities persist?
Click to expand...
Click to collapse
Don't know how durable it is...but I too face the unlock pattern issue sometimes, IMO it is a software issue .. Also if you take too much time to draw the pattern the screen goes off (even if you keep your fingers touched)......
The only solution thus far is to lock and unlock the phone, which fixes the keyboard and the touch functionality.
Click to expand...
Click to collapse
If a reboot fixes the problem, then it's not hardware, its a software problem. Do a factory reset.
Recently I dropped the phone twice on a hard surface,
Click to expand...
Click to collapse
Dropping your phone will usually cause hardware problems. Get a case or don't drop the phone anymore.
First I was suspecting a virus
Click to expand...
Click to collapse
There are no android viruses.
but after thoroughly cleaning the phone and acquiring more memory (by closing apps) I was still having the problem.
Click to expand...
Click to collapse
DON'T use task killers or force close apps, that only makes things worse, and is probably what is causing your problem.
sitlet said:
If a reboot fixes the problem, then it's not hardware, its a software problem. Do a factory reset.
Dropping your phone will usually cause hardware problems. Get a case or don't drop the phone anymore.
There are no android viruses.
DON'T use task killers or force close apps, that only makes things worse, and is probably what is causing your problem.
Click to expand...
Click to collapse
Well when app's foreclose there isn't much to do but close them ?
The task killer, well, I don't really use it much, I just have it, its called eRay..
Sent from my HTC EVO 3D X515m using XDA
sitlet said:
If a reboot fixes the problem, then it's not hardware, its a software problem. Do a factory reset.
Click to expand...
Click to collapse
It's not a reboot, just a lock/unlock of the screen/phone..
Sent from my HTC EVO 3D X515m using XDA
What on Earth is a 3vo!? Is it anything like an iphone 4!?
joehunni said:
What on Earth is a 3vo!? Is it anything like am iphone 4!?
Click to expand...
Click to collapse
An 3VO or E3D are abbreviations for the EVO 3D from HTC
Sent from my HTC EVO 3D X515m using XDA
Here's an update on this issue...
I've noticed that the upper left corner is the cause. How?
Well, in landscape mode on my homescreen, trying to pull the notification bar down (then from, the bottom left since were in landscape) will instead (without any animation) try to go to full homescreen view where I see all my 7 homescreen, but it does it in a zoom like feature, where the more I pull it to the side the more it will zoom in until final animation frame is reached LMAO.. I'm actually crying...
The sensor might be off, in that corner of the screen as dropped phone tend to land/hit the corners first...
I should ask an xda dev. to cook me up a "sensor status check" app to check if any of them are functioning incorrectly..
I don't know what more then that I could do?!..
Sent from my HTC EVO 3D X515m using XDA
Hey guys, thought I drop my final verdict on this issue.
As you all (who read this thread) knows, I was having an irritating problem with my E3D, namely the touch functionality of the screen was messed up, but only in a certain area, where I thought the sensors got discalibrated from the drops the Phone went through on hard surfaces.. I have used an app called "Check My Android" and the feature "MultiTouch" to identify the spot on the screen, where if I touched, a daemon took over my phone and started all kinds of wired behaviour such as item triggers on the other side of the screen and freezing, even slow mo zooming of the homescreen, one touch passive zooming of webpages and so forth..
Now with that app, I was certain that everything with it is not in order, but I didn't have the slightest clue on what to do about it. I ran across a comment about the built in utility diagnostics tool code for the Phone while browsing on U2B (YouTube), so by typing "*#*#3424#*#*" (which starts as you enter the lasts star) will basically allow you to test every aspect of functionality of your phone, where i also went for the screen draw test, and found myself strengthening what I already thought was the problem "an area on the screen messing everything else up" as I pressed within this area I found a straight line jump, from the "dead zone" to the bottom middle of the screen, as I was drawing circles, it drew a straight line there as i went over it with my finger every time. Than browsing on after that code's discovery, for "EVO 3D touchscreen problems" I ended up on a video offering similar problems..
Now the breakthrough or rather yet the solution came from that videos second and only comments, saying how "Disabling the ScreenLock of the Phone would fix that problem" and so it did!!! I'm not having any disturbance while typing, flipping pages touching that area or anything out of the ordinary, otherwise the Phone was almost unusable. It let's me to believe its a software miscoading flaw, but it wasn't always like that even though I used the screenlock since day one, so I'm not entirely sure what's up? other than its fixed...
I hope this fix can relieve others just as it did me
And the diagnostics code is also useful.. should be stickyd :]
Sent from my HTC EVO 3D X515m using XDA
G4m3rHead said:
Hey guys, thought I drop my final verdict on this issue.
As you all (who read this thread) knows, I was having an irritating problem with my E3D, namely the touch functionality of the screen was messed up, but only in a certain area, where I thought the sensors got discalibrated from the drops the Phone went through on hard surfaces.. I have used an app called "Check My Android" and the feature "MultiTouch" to identify the spot on the screen, where if I touched, a daemon took over my phone and started all kinds of wired behaviour such as item triggers on the other side of the screen and freezing, even slow mo zooming of the homescreen, one touch passive zooming of webpages and so forth..
Now with that app, I was certain that everything with it is not in order, but I didn't have the slightest clue on what to do about it. I ran across a comment about the built in utility diagnostics tool code for the Phone while browsing on U2B (YouTube), so by typing "*#*#3424#*#*" (which starts as you enter the lasts star) will basically allow you to test every aspect of functionality of your phone, where i also went for the screen draw test, and found myself strengthening what I already thought was the problem "an area on the screen messing everything else up" as I pressed within this area I found a straight line jump, from the "dead zone" to the bottom middle of the screen, as I was drawing circles, it drew a straight line there as i went over it with my finger every time. Than browsing on after that code's discovery, for "EVO 3D touchscreen problems" I ended up on a video offering similar problems..
Now the breakthrough or rather yet the solution came from that videos second and only comments, saying how "Disabling the ScreenLock of the Phone would fix that problem" and so it did!!! I'm not having any disturbance while typing, flipping pages touching that area or anything out of the ordinary, otherwise the Phone was almost unusable. It let's me to believe its a software miscoading flaw, but it wasn't always like that even though I used the screenlock since day one, so I'm not entirely sure what's up? other than its fixed...
I hope this fix can relieve others just as it did me
And the diagnostics code is also useful.. should be stickyd :]
Sent from my HTC EVO 3D X515m using XDA
Click to expand...
Click to collapse
Never mind that, it was only a temporary fix, as it started doing it again after a while...
Try calibrating your screen via display settings if you haven't already. Also are you having just touch screen issues or are reboots part of the issue as well ??
#Root-Hack_Mod*Always\
laie1472 said:
Try calibrating your screen via display settings if you haven't already. Also are you having just touch screen issues or are reboots part of the issue as well ??
#Root-Hack_Mod*Always\
Click to expand...
Click to collapse
It's screen issues only, no reboot problems yet..
I have calibrated the G-Sensor several times...
In another post someone replied, that its a grounding issue, and trying that once it did give a result, but then again, I'm not having that, unusable level of the issue I was having, after a hard reset.. so I'm not really sure weather this is a grounding problem, an app caused problem, all I know is that I still get an extra touch input on the screen, when I approach the upper left corner.. with every multi touch app I test..
Have you tried that app called touch screen booster ??? If not give it a shot. Set the multi touch point settings to two. Then apply then start the service and select run at boot. Then reboot and see if it helps any. Also a way of trouble shooting to find out if it is a rogue app is to Uninstall all of your apps. Then see if you still have the issue.
#Root-Hack_Mod*Always\
laie1472 said:
Have you tried that app called touch screen booster ??? If not give it a shot. Set the multi touch point settings to two. Then apply then start the service and select run at boot. Then reboot and see if it helps any. Also a way of trouble shooting to find out if it is a rogue app is to Uninstall all of your apps. Then see if you still have the issue.
#Root-Hack_Mod*Always\
Click to expand...
Click to collapse
Yes i have, thanks to you, but it was futile. Had no impact what so ever...
It's handed in for repairs, so I'll know what it was soon..
G4m3rHead said:
Yes i have, thanks to you, but it was futile. Had no impact what so ever...
It's handed in for repairs, so I'll know what it was soon..
Click to expand...
Click to collapse
Bummer. Well at least you'll get it back fixed.
#Root-Hack_Mod*Always\
are you running any of the custom kernels? If I run why kennel besides stock I get the exact same behavior
Sent from my PG86100 using XDA
punkerEVO said:
are you running any of the custom kernels? If I run why kennel besides stock I get the exact same behavior
Sent from my PG86100 using XDA
Click to expand...
Click to collapse
No i have not rooted, i was waiting for the official ICS before i root.
So I'm on the Stock... everything lol
This is my second 3D. The first one stopped responding to touches. Sprint replaced it for $30 even though I bought it from wirefly.
In my own experience, I had the exact same symptoms. Only difference is I didn't even drop my phone. After a few months of owning the phone it started to show the aforementioned symptoms occasionally. Eventually, it just got worse. After a lot of forum searching, google searching, etc, it turned out to be the digitizer that was faulty. I had tried everything from flashing different ROMs, Kernels etc before I was finally able to narrow it down to a hardware issue. The digitizer seems to be an issue for a lot of 3VOs from what I understand.
Luckily I had a friend who replaced the entire front housing of my phone so I wouldn't have to exchange it since I was unlocked on HBOOT 1.40. At the time I was afraid that, had I gotten it replaced, I'd have to deal with Hboot 1.50 and HTC's half ass unlock method. Either way, after that it was like a brand new phone but better cuz I didn't have to redownload apps, etc since the motherboard and software weren't touched at all.
Hope it all works out for ya... G'luck, brothah!
Sent from my PG86100 using XDA
Shame I hadn't seen this thread sooner, I could have saved you a lot of time. I am on my 3rd 3d. Basically any fall which lands on the touchscreen will cause this problem.
What makes it worse, I was rooted with my last phone, and when it happened, I had to unroot before I could take it in for repairs. The touchscreen was so badly damaged with this problem, I could hardly do anything.
TL;DR get a case that will cover the screen and protect it from flat on touchscreen falls.
hey i have an strange problem sometimes randomly my phone screen goes crazy !!! if close the screen and reopen it the bug goes away and comes back randomly again but the problem became more constant after changing the battery with an anker one
any help ?
i never swapped my battery but mine did that before and i found out that my digitizer was going bad
This is a very common problem. Like the reply before me it seems to be a digitizer issue.
I have random touches, some time parts of the screen are unresponsive, and then even the whole screen will become unresponsive. A quick press of the power button and 90% issue stops. Sometimes only for a moment sometimes for hours or longer. Also seems to be worse on sense ROMs. I have changed firmware, hboots, kernels, ROMs, and radios with little to no difference.
Even though it sometimes acts like a software problem it is always there. Until a few weeks ago recovery never had an issue but it is now there also. Before that I was convinced it was software of some sort. Now I still want to think software because the issue is so random but until it gets to where the phone is almost unusable I am holding off on a digitizer.
Sent from my PG86100 using xda app-developers app
mitsakhs said:
hey i have an strange problem sometimes randomly my phone screen goes crazy !!! if close the screen and reopen it the bug goes away and comes back randomly again but the problem became more constant after changing the battery with an anker one
any help ?
Click to expand...
Click to collapse
It's static electricity.
It's hard to clean, Maybe use you 3D without Screen Protector a period of time.
foddyy said:
It's static electricity.
It's hard to clean, Maybe use you 3D without Screen Protector a period of time.
Click to expand...
Click to collapse
i dont use any Screen Protector neither any case
mitsakhs said:
i dont use any Screen Protector neither any case
Click to expand...
Click to collapse
Then maybe you can try a anti-static-electricity Screen Protector for several days.
So, this thing drives me crazy...I've tried everything I knew and still nothing solved this problem.
I'm using HTC One. About 10 days ago weird things with touch started to happen. It seems that touch is partly unavailable/unresponsible on touch in one or two small areas. It seems to me like theres an empty place on my touch. Visualy is everything fine. Screen is crystal clear and has no damages or scratches. But I can't slide icons without troubles. Somwhere on 1/4 of screen, touch brakes briefly and I need another try to slide the icon. The same thing happens with status bar on the top of screen - I can slide it until that 1/4 part and it stops there and goes back. If I slide it quick with short move, it works fine, just slide alone over problematic area.
Also, few times I had that problem where screen works things on itself will. Makes pictures, or adds filters on Instagram, or, I don't know, just jumps around for few secons. Then, I lock the screen, then unlock it and usually that calm down the screen.
Also weird thing is that, when I want to send message, I can't reach "send" button in first try. I have to drop down writing sheet, than to touch the letters to put it in writing mode again, and then I can click the "send" button. On the same place where it was previously!
At first, I thought that plastic case or PVC protection is the problem, so I took off the protector from the screen. That solved problem for a bit. Then, I put back screen guard, and problem came back. After I totally rejected screen guard, problem is still here. I've tried to reset phone on factory, but that wasn't helpfull...
I forgot to state that I'm using Android 4.2.2 and this started to happen after that version update. I had no problem before.
So, now I'm here, as I don't know what else to do before I take this beauty to service. I just hope that this happens because of software bugs :crying:
Is there anyone who could help me? Have similar problem or know how to fix this?
In the meantime, I'll just hope that 4.3 will fix it themself... :fingers-crossed: