Develop Bugs

[Q] I have the grounding issue (bad screen sensitivity)

Hi everybody! I have been reading here that some people had this issue, but I don't see how they solved it. I've had this issue since the beginning.
Basically, screen sensitivity is very bad when the device is unplugged, only when it's plugged in or holding it with both hands it responds correctly.
This is a problem for me, because for studying, i put the a100 on its stand case, and only need one finger to slide a word or ppt. With this grounding issue, i have to touch the a100 with both hands to make it react properly, it's very annoying and uncomfortable.
Should I take it to the technical support? it's a hardware problem? I tried the build.prop from crossix and still the same. And tried the recalibrate.apk without any success. I don't know what else I can do.
I'm still in guarantee, i'm thinking seriously to take it to SAT. But i have unlocked bootloader, how can i revert it? How should i prepare the device to keep manteining the guarantee?
people who sent the a100 to SAT with this problem, it was solved?
thanks, I really need a fix for this

I have installed the official ICS rom and now it seems locked again, and I'm not root anymore. I think it's prepared for SAT, so I've called acer technical support, they will take the tablet for repair on tuesday 15.
I will post the results when they send it back to me, if someone is interested.

Did you try it after the update to ICS? the OTA ICS updates did wonders for the sensitivity of most of our tabs.

Yes, this is happening since the beginning when I bought the tablet with honeycomb, and still happens in ICS. Let's see if the technical support can fix it! because I really love this a100 thanks!
it makes any difference to upgrade by OTA or by flashing the rom that's here? I have flashed ICS, not by OTA

Is your build .14? That's the one that seems to fix the touchscreen problems.

I have had the touchscreen issues since day one also. Same issues, works fine without a case in two hands, one handed or laying it on a table/couch the screen is jumpy, random touches, and glitchy multi-touch. I've run 3.2 gen2, ICS .014, and ICS .017. I've even popped it apart looking for something simple (and to take a look at the wifi antenna), but nothing obvious found. I would have to guess it is a manufacturing defect.

jakob95 said:
Is your build .14? That's the one that seems to fix the touchscreen problems.
Click to expand...
Click to collapse
Yes it's that build (downloaded from the russian link)
This happens also in the a100 of my uncle. He has not yet the build .14, but I'm starting to think this build won't work to fix that.
I thought this build would fix the problem, but...
I want to believe it's a problem with some tabs and I had bad luck, and that technical support will fix it.

I've made this video showing the problem.
http://www.youtube.com/watch?v=yIGnXT22vhA

Definitely a problem with your tablet, mine is perfect.

I have similar problem but not bad us yours .. but iam out of luck because i buy it from ebay with no gurantee

I will send it tomorrow, we will see what happens xD

today my dear tablet have been sent to be repaired. I hope it will be with me soon again! xD I'll keep informing!

I've just received an email saying that my tablet is repaired! they will send it to me in the next days, very fast! I don't know if this is good or bad... xD

aishaz said:
I've just received an email saying that my tablet is repaired! they will send it to me in the next days, very fast! I don't know if this is good or bad... xD
Click to expand...
Click to collapse
Well about all I can do is wish you good luck buddy

I just got a refurb off of ebay and it has a 90 day warranty thru Acer, and the fella I purchased it from.
I am not having any issues with the screen even using the stylus they sent with it.
I tried the stylus to see what the hype was with a stylus and found it to be just that hype.
Do you have any type of screen protector on your tab?
Sometimes certain ones can cause issues.
If your device is under warranty I would let them fix it.

yes I have a screen protector, but the issue is there even without it.
I will tell you when i recover my tab and see if it's fixed xD

yea its the device itself i had problems with mine.. it had become completely unresponsive after i rooted it and installed ics i sent it back to the factory took almost a month and got a new one i suggest u do the same

How do I get a new one? today I have received mine and the problem doesn't seem fixed I wonder what they did to think it was resolved

aishaz said:
How do I get a new one? today I have received mine and the problem doesn't seem fixed I wonder what they did to think it was resolved
Click to expand...
Click to collapse
To be honest I didn't think the problem would be resolved. Contact them again and tell them the problem is not resolved; I'm sorry to say this seems like a design issue.
On the other hand, maybe you are being overly critical? My tab works well, but if I want to make the touchscreen seem less than perfect, then I would have no problems doing so. However, in practice this is a non-issue, and I have not had a problem with either my previous tab (which I sent back because it stopped charging) or my current tab (which I've had for 5 days). Of course, this is after upgrading them to official ICS releases.

I don't think I'm being critical, the fact that I can't slide a document properly without having to hold the tab with both hands is very very annoying for me, since I want it to study and the idea was to keep the tab in a stand in the table and touch it only for sliding for example. I stopped using it for this purpose due to that.
Moreover, my mother has another cheaper tablet and tactil control works so much better... In the same situations that my tab. I envy her for that, cause my tab is over 200€ more expensive and it's suposed to be better xD
I have an exam today, i will try to find time to call acer to tell them the problem is not solved.

Touch Screen Problem on HTC Desire Z

Hi All
For the last couple of months my desire has had an intermittent problem with the touch screen. All of a sudden it decides you're trying to pull down the "notifications" screen when you're just touching the touch screen, sometimes it also decides you're trying to hold and drag when you're just tapping the screen, sometimes it simply stops responding. These problems are usually solved by tapping the top button and putting the phone on standby then tapping it again and waking it up - although sometimes it then won't let you drag down the screen unlock until you repeat the on/off standby procedure a couple of times. The problem varies on connecting my phone to my computer.
Given that in between these instances the touch screen works as normal I'm guessing it shouldn't be a hardware issue, but the intervals between these problems appear to be getting shorter (either that or I'm just getting more annoyed by it recently). I've had a quick search of the forums and haven't immediately found anyone having this precise problem. Is it likely a question of trying factory reset and if that fails sending it for repair?
Thanks in advance

Similar issues. Don't think this is hardware.
Sent from my HTC Vision using xda premium

Gotta know more about the phone first. Is there a custom rom? Have you tried flashing to stock?

Dukenukemx said:
Gotta know more about the phone first. Is there a custom rom? Have you tried flashing to stock?
Click to expand...
Click to collapse
I'm having same problem, mine started couple weeks after I installed cm7.2, I tried another rom, no luck

Its definitely not software. I've tried froyo, gb stock with s-on and no root. I've been on ics roms cm7 roms but this problem occurs on all. I'm giving mine for service today.
Sent from my HTC Vision using xda premium

Well since the OP didn't respond here's my suggestions. If you think it's software then just flash to a stock rom. You should find a number of them lying around the forums, and instructions on how to flash. This will mean your phone is unrooted and will need to be rooted, as well as taking care of installing a recovery and etc. This should correct anything wrong with the software.
Otherwise you busted the digitizer, which is actually very cheap to buy on Ebay. You will have to take the phone apart which can be time consuming.

strawmetal said:
Its definitely not software. I've tried froyo, gb stock with s-on and no root. I've been on ics roms cm7 roms but this problem occurs on all. I'm giving mine for service today.
Sent from my HTC Vision using xda premium
Click to expand...
Click to collapse
Hello,
Any luck with the Tocuh Input, is your phone back from service? I am also facing the same issue....

I had this problem on my G2 a while back. It was a hardware problem so I ordered a new touchscreen and replaced it myself.
Sent from my Nexus 7 using xda app-developers app

htc desire z touchscreen details
Whiskey_Tango said:
I had this problem on my G2 a while back. It was a hardware problem so I ordered a new touchscreen and replaced it myself.
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
Hello Whiskey_Tango / Others,
Can you please let me know the details of the touchscreen component that you ordered for your G2? My HTC desire Z touch screen has also gone bad (unresponsive at multiple points) and I feel that changing the hardwre should do the trick.
If possible, let me know the touchscreen specs (model / part number) as well as any online website from where I can order it !
Many Thanks !!

From eBay search for HTC g2 digitizer
Be careful to get the one for the vision not for the magic
should be about $20
Sent from my Nexus 7 using xda premium

demkantor said:
From eBay search for HTC g2 digitizer
Be careful to get the one for the vision not for the magic
should be about $20
Sent from my Nexus 7 using xda premium
Click to expand...
Click to collapse
Thanks for the quick response. Before coming here, I had a mobile service shop take a look at my handset and he had mentioned that for HTC desire z, the "touch screen" comes with the "display" attached to it. Did he meant the digitizer only or (digitzer + LCD screen) or he was simply trying to rip me off ?
I am very sure that there is nothing wrong with the display on my handset, its only the touch functionality that is not working properly.
Which one of the following do I need to search on EBay?
gultek.eu/htc-spare-parts/digitizer-touchpad/desire-z.html
or gultek.eu/genuine-parts/lcd-modules/htc/desire-z-hd3.html
or both?
Thanks again in advance !!

You need just the digitizer, if you're doing it yourself it takes about an hour if you've never done it before, don't buy the lcd if you don't see a flaw in it.
Some people sell the whole front chasis with lcd, digitizer, front bezel all connected for ease of replacement. May be easier but you will only shave of 30min tops and spend 3x as much
Sent from my HTC Vision using Tapatalk 2

yeah this happens to my G2 a lot. I got my phone fixed a while back (2-3 months ago) becuase the colors on my screen were screwed up and the ear piece was broken. i took it in and he replaced a couple of cables. it worked fine but now sometimes the screen is just having a straight up seizure. it flips through pages so fast and it goes from page 1-2 and back and forth and then the virtual keyboard presses multiple keys and just its crazy. i feel like the guy that fixed my phone didnt plug in a cable all the way. but yeah thats my problem. i dropped my phone the other day and ever since my phone hasn't gone into a seizure lol

Hi, did you solve your problem? I have the same with my desire Z. It click alone in several place on my screen.
And I ask me if the problem don't come from the lcd digitizer control instead of the touch screen digitizer

strawmetal said:
Its definitely not software. I've tried froyo, gb stock with s-on and no root. I've been on ics roms cm7 roms but this problem occurs on all. I'm giving mine for service today.
Sent from my HTC Vision using xda premium
Click to expand...
Click to collapse
Hi, did u fixed your phone? can you tell me what was the problem.. even my phone is acting crazy.. wil that be fixed if i change the screen digitizer?

ahmedrzvi said:
Hi, did u fixed your phone? can you tell me what was the problem.. even my phone is acting crazy.. wil that be fixed if i change the screen digitizer?
Click to expand...
Click to collapse
Yes replacing the digitizer did fix my problem. And a year later the replaced digitizer started giving problems. So I ordered 2 extra digitizers off ebay. Both of them turned out to be duds. Surprisingly the second digitizer(which I replaced a year ago) fixed itself.

I think Im having the same problem,
bottom part of screen (including the home, menu, back, search buttons) aren't functioning half the time,
is there any service manual, or link to information as to what I need to tear apart on my DZ?
should this be enough? EBAYLINK
what do I need to replace the digitizer?

[Q] Brand New Note 3 problem

Hi guys, I have a weird problem and I need your advice.
My brand new galaxy Note 3 Sm-N900T is having screen blackouts....
Its like after the screen timeout the screen goes off and then when I press the power button it doesn't go back on again.
Or if I turn the screen off it doesn't go back on again... the buttons are working the sounds are on, I can answer calls and everything but the screen is black.
If I play with it (pressing power or home buttons) for a while it comes back on. Sometimes the phone restarts (rarely, I think because i press power button).
I have tried everything from playing with settings to wiping the cache and resetting the phone few times.
It looks like its a software issue to me, or maybe sensor.. but i think that when power button is pressed the screen should turn on regardless of sensors.
I do have the custom S-Case but I had the issue even before I got that.
Now.. I have few choices :
1. Go to t-Mobile and get a replacement.. probably refurbished, not a fact that the problem will away because I heard of lots of people having this issue ...
I of course do not want to do that.. I have this phone for less than a month.
2. Wait for KitKat....
3. install some kind of custom rom and see if problem goes away.
If anyone can help, Id really appreciate it.

I would do an exchange.. you paid good money for it and a defect is a defect, I wouldn't depend on a 3rd party patch for this
Sent from my SM-N900T using Tapatalk

?
go to the store for change this defective note.

This may be jelly bean bug... Lots and lots of people report the same problem...
If I replace my piece I will probably get a refurbished one with a great chance of having this or some kind of another problem......

Keda_P said:
This may be jelly bean bug... Lots and lots of people report the same problem...
If I replace my piece I will probably get a refurbished one with a great chance of having this or some kind of another problem......
Click to expand...
Click to collapse
sucks man.
I know on my htc onei have the purple camera problem but everything else was fine. they had to send me 2 replacements because the first one had a yellow screen and worse camera then mines.
Tmobile doesnt even check there replacement. Most of the time there phones that people traded in. And all they do with those is a power on check.
Now if you just got the phone and within the 14 exchange you can take it to the store and get a brand new one.

Had it for more than 2 weeks now.. since i was always playing with it i did not notice the problem .. (the screen was always on).
I called Samsung and Tmobile. I told tmobile that samsung said i have a defective phone. so Tmobile is sending me a "Like new" phone meaning that someone returned it within 14 days. I get to check it and if i dont like it i will just send them their phone back. and suddenly mine doesnt do the problem for 30 minutes lol.. maybe it got scared. Personally i think that KitKat would fix it.

Any force closes? I had this problem too untill I stopped using the crapy My Magazine bloatware, which was also sometimes force closing...
Sent from my SM-N900T using Tapatalk

No, no force closes, but one time it was funny, a little bit of status bar appeared from the bottom and on top it was a little bit cutoff.... like someone slid the screen up few pixels.
And whatever was cut just came from the bottom. Its weird... for $700 phone it should be flawless... I hope they dont send me crap phone and i hope they dont send my phone to someone else.
How can i get rid of it to see if that was the problem?

My phone works perfect and I had if since the first week they came out. .. It's not a jellybean thing you phone has a problem. ..
Sent from my SM-N900T using XDA Premium 4 mobile app

djtheraven said:
My phone works perfect and I had if since the first week they came out. .. It's not a jellybean thing you phone has a problem. ..
Sent from my SM-N900T using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I figured id try to reflash (not data reset, but reflash via Kies) so far so good no problem.
The whole thing looks like soft prob, not hard.
If it comes back Ill let you know. This could be a nice fix if works.

I'm in nyc, and my local store called the warrenty center and got me a brand new SGS2 one time. It still had all the blue plastic in the sim card and sd card slots, and plastic on the screen. So I'm know they can request it, just depends on your store if they are willing.
Sent from my SM-N900T using Tapatalk

Keda_P said:
I figured id try to reflash (not data reset, but reflash via Kies) so far so good no problem.
The whole thing looks like soft prob, not hard.
If it comes back Ill let you know. This could be a nice fix if works.
Click to expand...
Click to collapse
My sgs2 had problems out of the box. After I installed custom ROM they went away. It does happen. Restored stock via Odin, still no problems. Sometimes the software doesn't flash correctly from the manufacturer.
Sent from the phablet of the year!

noobtoob said:
My sgs2 had problems out of the box. After I installed custom ROM they went away. It does happen. Restored stock via Odin, still no problems. Sometimes the software doesn't flash correctly from the manufacturer.
Sent from the phablet of the year!
Click to expand...
Click to collapse
Well, I dont know what to think anymore... Looks like the problem persists but happens so rare that without the past I wouldnt notice it.
This makes me believe that with KitKat it will probably disappear. If soft changes cause this to go away or be less it means (to me) that the phone is not defective. New phone is still on the way, to bad I did not purchase it at local store... I did it online, so there is no one to yell at.
It will arrive on Feb 6th so I have plenty of time to test my phone, with some luck KitKat will roll out during this time and then I will be able to definitely see. And if new phone is cool I have the option of exchange anyway .
Thank you all for your help, keep posting, its an interesting issue.

:/
Phone went worse and worse everyday ... now the S-Pen "Air Command" doesnt pop up, several weird disfunctions...
Waiting for the replacement.

Zenfone 2 ghost touch

Hi all
Im very sory and angry. I was send my device to service center about ghost touch problem.(with all information screen videos, bug reports etc.) and they make only factory reset and send back to me my device. of course this problem still continue. I start legal transactions about my money and lost time. I m so sory. I realy loved this phone. Anyone have a solution for this problem?
if you wanna see the problem pls watch this video
h t t p s://drive.google.com/file/d/0B6I-PuQlmiZbcGJhNlA3emxITXM/view?usp=sharing
ASUS ZenFone 2 (ZE551ML)

And screen logs video
h t t ps://drive.google.com/file/d/0B6I-PuQlmiZbWHcxbFliOXBBQWs/view?usp=docslist_api

I've had this problem before with my other phone, and found the problem comes when i install certain app. So I just uninstall it then problem gone. Hope this could help
Sent from my ASUS_Z00AD using XDA Free mobile app

may be but I make factory reset (service center make too) when device totaly orijinal I saw same problem.

I'm facing the same problem since few days. Can't find any solution. Its happening on the left most corner of the whole device. My phone is Zenfone 2 ze551ml 2gb model.

I had the same issue. My screen was replaced by the service center.

Asus Zenfone 2 ZE551ML Showing Ghost [email protected]
I also using Zenfone ZE551ML and About A month ago , Mine Device is Also Random Touches All Over the Screen. I Have Tried 2 OTA Updates But Problem Is Still There. As You Guys Say,Not Even Asus Care Center Guys Solve This ProblemProblem. so Is There Any other solution to Make it Working Normally Like before.
I am having a hard time writing This Post Now.Because of These Ghost Touches.
Can't We guys Ask to Asus For a Software Update
for This Solution.
If You guys have Any Solution for this,Kindly Mail me at [email protected].
Thank-you.

Had the same problem. Tried everything including tightening the screws like some suggested. Finally i tried loosening the screws instead, and even removed a couple of screws at the top. Ghost touch finally stopped. Been 8 hours now. Hopefully it stays that way.

houhong said:
Had the same problem. Tried everything including tightening the screws like some suggested. Finally i tried loosening the screws instead, and even removed a couple of screws at the top. Ghost touch finally stopped. Been 8 hours now. Hopefully it stays that way.
Click to expand...
Click to collapse
how's your phone now? i encounter the same problem. my phone is just two months old and mine is laser 6 inches. i have sent it to the service center for diagnosis and replacement/repair. im worrying that this problem would come back after some time. im assessing that my digitizer broke because an inch of my screen does not respond in addition to the ghost touch

My ZE550ML is having a little ghost touch also, but it sorta happens when I under clock the processor and when I'm using apps like Google+, XDA, etc. It doesn't happen often, but when it does it just goes away for a few hours. Might have to do what houhong did.
Sent from my ASUS_Z008 using XDA-Developers mobile app

mine has ghost touch on top screen.. its annoyong.. mine is 550ml from hongkong which i cant get warranty from philippines... darn!.. to asus what should i do now? ty

pato2015 said:
mine has ghost touch on top screen.. its annoyong.. mine is 550ml from hongkong which i cant get warranty from philippines... darn!.. to asus what should i do now? ty
Click to expand...
Click to collapse
Hate to say it man, but you might need to get a new smartphone
Sent from my ZTE A2017U using XDA-Developers mobile app

troy5890 said:
Hate to say it man, but you might need to get a new smartphone
Sent from my ZTE A2017U using XDA-Developers mobile app
Click to expand...
Click to collapse
im just seing my zenfone once a month cauuse cant stand the ghost touches.. at times cant write at all.. yup alrrady got moto x pure editiom $ 260.. at beat buy... it working grreat... sorry for wrting cause im using the stupid z3nfone now..

pato2015 said:
im just seing my zenfone once a month cauuse cant stand the ghost touches.. at times cant write at all.. yup alrrady got moto x pure editiom $ 260.. at beat buy... it working grreat... sorry for wrting cause im using the stupid z3nfone now..
Click to expand...
Click to collapse
That's alright my fellow sir. I had to get the Axon 7 since the LCD wouldn't turn on after going through ghost touch. I'm glad you got a moto x pure edition to replace it. It is definitely a worth smartphone to replace.
Sent from my ZTE A2017U using XDA-Developers mobile app

Hello Guys , the ghost touch has no relation with any app or software, it is purely a hardware problem, Main cause of this is the digitizer tiny flat cable . you need to disconnect and reconnect the digtizer flat cable ( under metal cover for the main board) please follow proper procedure , Then before you put things back together stick a peace of foam over the flat cable connection after locking it in the position ( over cable and connector). This should sort the problem , but if you experience the ghost touch again , you need to replace screen digitizer first and follow the same procedure for the new screen digitizer and that will be end of problem.
Please do not bother with factory reset or uninstalling apps .. I briked and unbriked the whole phone before I realize problem had nothing to do with software !!
Good luck!

BP100 said:
Hello Guys , the ghost touch has no relation with any app or software, it is purely a hardware problem, Main cause of this is the digitizer tiny flat cable . you need to disconnect and reconnect the digtizer flat cable ( under metal cover for the main board) please follow proper procedure , Then before you put things back together stick a peace of foam over the flat cable connection after locking it in the position ( over cable and connector). This should sort the problem , but if you experience the ghost touch again , you need to replace screen digitizer first and follow the same procedure for the new screen digitizer and that will be end of problem.
Please do not bother with factory reset or uninstalling apps .. I briked and unbriked the whole phone before I realize problem had nothing to do with software !!
Good luck!
Click to expand...
Click to collapse
Thank you! Will definitely try it.

[HELP]Part touch screen not working

So until day before yesterday, My phone had been working fine, no issues at all. Then suddenly I started getting ghost touches. I thought i twas due to the some smudges on screen. Tried cleaning it, but the touches would remain. Turned screen on and off used to make it go for sometime. Rebooted, the issue seemed sorted. Then yesterday, I started to notice that the part where ghost touches were occurring, touch is not working. Rest part works absolutely fine though. Tried the screen touch test in service test in service menu, it showed that much part to be unresponsive. So is there any chance I can recover by testing with some software or replacing digitizer(which comes with screen I think) is the only option? I have attached the a screenshot of the touch test. The black rectangle in center is the one where touch is not working. I have removed the screenguard, so that was not causing the issue.
I'm on stock, rooted and xposed. Also tried reverting back to a clean PRF(rooted and recovery), but same results were obtained. Once or twice I was able to get a single line of touch across, but that's it.

for a week or two my phone also started getting ghost/phantom touches in roughly the same area. I haven't taught much of it until now, your post has made me concerned that my screen too will stop working.
keep the thread updated if there's any new development

karamancho said:
for a week or two my phone also started getting ghost/phantom touches in roughly the same area. I haven't taught much of it until now, your post has made me concerned that my screen too will stop working.
keep the thread updated if there's any new development
Click to expand...
Click to collapse
Tried a few apps, none are able to register touch in the specified region. Will most probably have to replace digitizer. How is Your phone fairing?

Mirhawk said:
Tried a few apps, none are able to register touch in the specified region. Will most probably have to replace digitizer. How is Your phone fairing?
Click to expand...
Click to collapse
still getting phantom touches in the upper part of the screen. It's not so bad that it wold be considered a problem, only a mild annoyance for now

What did you do to solve it?
I have the same phantom touch issue now, in the exactly same area

patoberli said:
What did you do to solve it?
I have the same phantom touch issue now, in the exactly same area
Click to expand...
Click to collapse
I wasn't able to solve the problem, and I'm using as it is for now as I can't spend much on the phone. One user had said that even replacing the digitizer might not work, not sure why though. Were You also rooted and/or exposed?

patoberli said:
What did you do to solve it?
I have the same phantom touch issue now, in the exactly same area
Click to expand...
Click to collapse
welcome to the club
my situation is the same as with @Mirhawk. I'm using the phone as it is until I can put aside enough money to buy some other phone.
bonus thread

Nope, neither rooted nor xposed.
I sadly can't anymore really use the phone, it started from one day to the other. Luckily I already ordered a new phone a week ago, it just needs to be delivered....