Ghost fingers on touch screen...?? - Nexus 4 Q&A, Help & Troubleshooting

Hi guys,
I recently bought a Google Nexus 4. Great device! But now I have a problem with the touch screen I guess.
I have some ghost touches on the screen. They are always on the same places.
To be more specific, on the same X-as of the screen. 3 to 5 touches in horizontal direction, swiping and touching the screen.
It's not always there, that's what's bothering me.. what is gods name could it be...
I'll add a screenshot of the touches when I get a chance to...
I have this problem for about a week now. And I was wondering if someone knows the solution to this.
ROM: Cyanogenmod 10.1.2
Cheers,
Alexander

When did this happen?
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andyabc said:
When did this happen?
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It happens every now and then. It started a week and a half ago or two weeks ago. Not exactly sure.

Alexandersch said:
It happens every now and then. It started a week and a half ago or two weeks ago. Not exactly sure.
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This is start on the stock or custom rom?
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andyabc said:
This is start on the stock or custom rom?
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I have installed the custom rom the moment I got this device. It didn't happen before.. So I doubt it is a software problem. I'd rather think of it as a hardware problem, don't you think?

No-one?

If it started on custom Rom then flash back to stock to see if it still happens. If not then there you go.
If still happens even on stock then RMA the device.
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mariosraptor said:
If it started on custom Rom then flash back to stock to see if it still happens. If not then there you go.
If still happens even on stock then RMA the device.
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I flashed another ROM CM10.2 UNOFFICIAL. Did a clean install.
Untill now it is reacting normal.. Let's wait and see.
I am thinking, could it be of some backup settings it is recovering from my google account?
Because it has no Gapps installed yet. Downloading at the moment.
Thanks in advance

As suggested, try stock.
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naenee said:
As suggested, try stock.
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Ok, The CM10.2 did not work. I disabled auto backup and recovery of Google settings and stuff and flashed the Stock ROM 4.2.2.
Also there was an official update to 4.3. And surprisingly enough, the device is responding normal again. Still though, i think it was very strange that the problem was also in the recovery...

Related

Random reboots using the camera?

Hey all,
As the title says: I'm having random reboots while using the camera. First it freezes for about 3 seconds and then hot boots into the Nexus logo. It happened 3 times over the past month so it isn't bad, but still not as it should. I'm on unrooted stock.
Any experiences/tips?
Sent from my beloved Nexus 4
Are you undervolted?
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No real changes made in any function concerning performance.
Sent from my beloved Nexus 4
joshnichols189 said:
Are you undervolted?
Sent from my Nexus 4 using Tapatalk 2
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He's not rooted so it's some issue with the stock firmware. TC you can try factory reset.
Ace42 said:
He's not rooted so it's some issue with the stock firmware. TC you can try factory reset.
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Click to collapse
Yes I see I failed to read the last sentence haha. I would also recommend a factory reset.
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I also thought that would be the eventual outcome, but I'm really not into that . I guess I can live with it then and I will unlock my bootloader when I get sick of stock so things will be alright .
Sent from my beloved Nexus 4
Unlocked my bootloader and thus did a factory reset, but it still happens at times. Any ideas?
Sent from my beloved Nexus 4
Remcotjuuh said:
Unlocked my bootloader and thus did a factory reset, but it still happens at times. Any ideas?
Sent from my beloved Nexus 4
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Same problem at some devices at a hungarian forum. Mine does it some time. We are afraid of hardware problem.
Edit - just noticed the date on the OP ...
Have you tried re-flashing the stock ROM? It would be worth a try.
Sent from my Nexus 4
Remcotjuuh said:
Hey all,
As the title says: I'm having random reboots while using the camera. First it freezes for about 3 seconds and then hot boots into the Nexus logo. It happened 3 times over the past month so it isn't bad, but still not as it should. I'm on unrooted stock.
Any experiences/tips?
Sent from my beloved Nexus 4
Click to expand...
Click to collapse
Had same issues whit my last N4 wich i RMAed and lots of other problems new one is fine no hot boots (other then testing UVs) or any problems.
Tested on Stock unrooted for a 2 weeks.
joshnichols189 said:
Are you undervolted?
Sent from my Nexus 4 using Tapatalk 2
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Do you read what he posted???
I had this problem on a DHD. Althought this is not a dhd the problem might be the same.
That was battery related. When i changed the bad battery, my problems went away.
Usually if your phone reboots during camera shots, it means the battery is borked. RMA it man.
Is it confirmed battery related?
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berg82 said:
Is it confirmed battery related?
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Who knows... I got it as well, I notice it happens while focusing with flash and/or taking photos with flash for long time then it got reboot (http://forum.xda-developers.com/showthread.php?p=46312752) got it on stock camera app, with camera 360 tried the same situation and no reboot at all...
Maybe the flash warm the cpu or something which cause the reset...my battery temperature seems fine as I monitoring it.
PsyOr said:
Who knows... I got it as well, I notice it happens while focusing with flash and/or taking photos with flash for long time then it got reboot (http://forum.xda-developers.com/showthread.php?p=46312752) got it on stock camera app, with camera 360 tried the same situation and no reboot at all...
Maybe the flash warm the cpu or something which cause the reset...my battery temperature seems fine as I monitoring it.
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Hi, Do you have a custom recovery installed? Reason Im asking is because I have difficulties to reproduce the problem after flashing a 4.3 factory image.
Edit: Im not sure what kind of impact a custom recovery could have. I have reproduced the issue on cm 10.1.3, Cm 10.2 and a stock rom flashed via cwm. But as I said, I have problems to reproduce it after flashing 4.3 factory image.
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berg82 said:
Hi, Do you have a custom recovery installed? Reason Im asking is because I have difficulties to reproduce the problem after flashing a 4.3 factory image.
Edit: Im not sure what kind of impact a custom recovery could have. I have reproduced the issue on cm 10.1.3, Cm 10.2 and a stock rom flashed via cwm. But as I said, I have problems to reproduce it after flashing 4.3 factory image.
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No mate, I'm on stock clean (without root/open bootloader) as it comes from google play 4.2.2 (I even didn't update to 4.3 just to check the stability of this version).
Now I got it again, I can confirm its nothing to do with 'heat' or anything about hot cpu...the device was cold. At this time also wifi was off so if someone had a thought...its nothing to do with it.
Seems its some bug with the stock camera app and/or gallery app... Shots only 2 photos with flash, take a look at the gallery and it got freeze and reboot.
Maybe the option to move from gallery to camera with only swiping...donno... Anyway its happening only when flash on so its weird....
Do you got this reboot only with macro flash photos or any type of flash photos?
Again, tried camera360 with more flash shots at macro and seems works without any problems , also Ive found it more accurate then stock one, eventough I like the stock app.
Has anyone found the problem cause I'm also having this same problem. Its happened three times, two of the times it was when focusing with flash. The phone just froze and rebooted. I did notice that before it rebooted I heard the camera aperture shutter a few time really quick and the the phone rebooted. The other time it was when I went from camera to gallery and zoomed in on the picture I had just taken.
I maybe thought it was the ROM problem but to hear you say its happened to you on stock ROM and not rooted my not sure what it is. If it matters I was on AOKP 4.2.2 and cm10.1.2 ,cm10.13.
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Nexus 4 Date Issue

Hi,
First time post, I've had a search through the forums but haven't been able to find anything related, hopefully someone knows how to help though.
I turned on my Nexus 4 the other day and the date setting has somehow changed. As you can see in the screenshots, the last 2 numbers are the date and the first number seemingly just goes up by 1 each day. I've tried to change the date settings several times but nothing has changed. Is anyone else having the same problem?
My Lightflow app also stopped working at the same time, it won't open despite uninstalling and reinstalling. I would imagine these are unrelated but you never know.
Thanks in advance for any responses!
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More information would be helpful. Are you rooted, have custom ROMs, custom kernel?
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Ah, sorry. Nope, not rooted or anything like that. Just on standard Android 4.2.2
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theclambert said:
Ah, sorry. Nope, not rooted or anything like that. Just on standard Android 4.2.2
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Looks like a software bug. Try flashing the stock images again and it should fix this problem. Try using carbon to do a backup first if you want to keep data.
Sent from my Nexus 4
Same issue here
theclambert said:
Ah, sorry. Nope, not rooted or anything like that. Just on standard Android 4.2.2
Sent from my Nexus 4 using xda app-developers app
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I have the exact same issue - Stock JB 4.2.2 but am rooted. Happened suddenly last week - can't figure out how to revert this.
Any luck so far?

Home button not working

Hey i just flash cm10.1 on my nexus 4, i've had cm on my nexus before but I've has stock rooted on my phone for the past few weeks.
Anyway the home button is not working and the quick settings are not working and the screen doesn't lock, the screen just switches off but no lock screen.
Anyone else had anything like this?
i've re-downloaded cm and it still doesn't work.
Yes, with CM 10.1.0 over the past day I've noticed that my home button will stop working in the app drawer (that is, it won't dump me back to the main screen). Dunno what is causing it to stop working.
I am not having the lockscreen problem you are describing, everything else is working as expected (except for the Google Now launch animation working).
Have you installed gapps?
Yea have you flashed gapps?
Have you searched the subject first?
Have you tried reflashing it and wiping everything 2 or 3 times?
Have you tried doing anything ?
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Yeah I got to the bottom of it. it seems to have something to do with restoring my android I'd (it stops play music from registering my phone as a new device) i did it with nandroid manager.
I re-freshed it and restored my I'd with titanium backup. All is good now.
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bodom_hc said:
Yea have you flashed gapps?
Have you searched the subject first?
Have you tried reflashing it and wiping everything 2 or 3 times?
Have you tried doing anything ?
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Yes, yes and yes is there any need to be so f*#king rude?
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[Q] Barometer

My new nexus 4 is doing great, however.
My barometer sensor seems to fail.
It used to work, but now pressure is always "0". Tried other apps, nothing responds.
How is this possible?
This this issue occur after the update?
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andyabc said:
This this issue occur after the update?
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Yesterday it updated to android 4.3, didn't work ever since.
Mine works, try a factory reset.
Unfortunately, Android 4.3 is full of bugs and there are a few ways to fix a few bugs by a full flash and/or wiping.
Sent from my Nexus 4 using Tapatalk 4 Beta
high-speed Qamexpr
andyabc said:
Mine works, try a factory reset.
Unfortunately, Android 4.3 is full of bugs and there are a few ways to fix a few bugs by a full flash and/or wiping.
Sent from my Nexus 4 using Tapatalk 4 Beta
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Powering it off and on for the 3th time made it work again. Strange... Tnx anyway!
charelare said:
Powering it off and on for the 3th time made it work again. Strange... Tnx anyway!
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Interesting, somehow bugs can be fixed by doing a few reboots has well.
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Screen unresponsive

Basically, my N7's screen is frequently unresponsive. I was trying to start something in my launcher, and tried pressing it at least 6 times, but nothing happened. Then I tried swiping between launcher pages, and that worked just fine the first time.
This just started happening on an almost constant basis within the last 30-60 minutes, and I was wondering if anyone else has experienced this, or heard of anyone else experiencing it. I'm running the latest Minimus with Jassy's latest kernel (I just flashed them this morning, but it was probably 4-5 hours ago at least), with the DPI set to 290 (I just raised it from 280 to see if that would help anything). I also cleared the cache and dalvik.
Any ideas?
My girlfriends tablet has done that too, then it just randomly goes back to just fine
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Why don't you try stock and see if you have an issue. This would allow you to rule things out at least.
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Same issue here...both stock and CleanROM
me as well. And this is my second tablet after returning the first one for dead pixels
My tablet is stock rooted and I have just experienced this. I had to reboot in order to fix it. Hopefully this doesn't happen again.
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lyall29 said:
My tablet is stock rooted and I have just experienced this. I had to reboot in order to fix it. Hopefully this doesn't happen again.
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Same here this has happened to me on stock, but a reboot fixed it.
I've only experienced this using Chrome. it got so bad that I'm using the molasses-in-the-winter-going-up-hill Firefox browser just to be able to web surf.
Same here stock, and clean ROM.. Haven't noticed anything on kanged cm nor pa yet. Can't get otg to work worth a crap either I bought chainfires app to help with otg worked with stock based ROMs but not cm based ROMs .. I'm pissed I bought the 16 GB model..
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dincdoes.me said:
Same here stock, and clean ROM.. Haven't noticed anything on kanged cm nor pa yet. Can't get otg to work worth a crap either I bought chainfires app to help with otg worked with stock based ROMs but not cm based ROMs .. I'm pissed I bought the 16 GB model..
Sent from my Nexus 7 using Tapatalk 4
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It happened to me as well (complete stock). Mostly (if not all) instances were with Chrome. I don't remember it happening again since I switched to Chrome beta. (Fingers crossed).
I just took mine back to Best Buy and exchanged it for the 32gb model. The guy at the store asked if anything was wrong with the tablet and I told him that it would freeze up and I would have to reboot in order to fix it. He told me that all tablets and phones freeze like that and that I should reboot the device at least once a day to prevent the freezing of the screen. I thanked him and told him that I would do that. These salesmen must think that everyone is as dumb as they are.
I hope my new tablet doesn't have the same problem, because if it does I might give up on the new nexus 7.
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