Develop Bugs

Flickering screen

I have noticed that my screen is flickering ever so slightly in all applications. it is bearable but slightly annoying. Could this be hardware related and will I have grounds for a warrenty replacement? should I wait and see if any OTAs resolve it?
Everything is stock. Brightness is set to auto.
I have problems with shadowgun crashing when there is an explosion etc. possibly related?
Sent from my HTC One X using XDA

Yeah, i noticed this too on my One X I've mostly seen it while my mobile data connection was on, and it seems to decrease a lot but not completely disappear when it's off. I also got a weird message yesterday while charging, saying something along the lines of "your phone is using too much current, -" (the message was in dutch, not sure what the exact message is in english) my phone turned off before I could completely read it. I wonder if those issues are somehow related. Maybe the screens backlight isn't getting enough power when the radio is on. Anyways, I'm not an expert, so don't quote me on that.
I also heard the tegra 3 drivers are buggy, so shadowgun crashing and performance drops etc. will hopefully be resolved in future updates.

I've got it as well I think it's a driver issue the last thing I want to do is go for a replacement and that to have more dud stuff as this is the only dud thing on mine. Everything else is fine apart from flickers now and then.
Sent from my HTC One X using Tapatalk 2

See developer option
JimmyEatFood said:
I have noticed that my screen is flickering ever so slightly in all applications. it is bearable but slightly annoying. Could this be hardware related and will I have grounds for a warrenty replacement? should I wait and see if any OTAs resolve it?
Everything is stock. Brightness is set to auto.
I have problems with shadowgun crashing when there is an explosion etc. possibly related?
Sent from my HTC One X using XDA
Click to expand...
Click to collapse
hey jimmy go to Menu->settings-> Developer options and untick all the option restart your phone and magic..... screen flickering will disappear
---------- Post added at 11:46 PM ---------- Previous post was at 11:34 PM ----------
backstabz0r said:
Yeah, i noticed this too on my One X I've mostly seen it while my mobile data connection was on, and it seems to decrease a lot but not completely disappear when it's off. I also got a weird message yesterday while charging, saying something along the lines of "your phone is using too much current, -" (the message was in dutch, not sure what the exact message is in english) my phone turned off before I could completely read it. I wonder if those issues are somehow related. Maybe the screens backlight isn't getting enough power when the radio is on. Anyways, I'm not an expert, so don't quote me on that.
I also heard the tegra 3 drivers are buggy, so shadowgun crashing and performance drops etc. will hopefully be resolved in future updates.
Click to expand...
Click to collapse
@backstabz0r for screen flickering pls refer to my earlier ans and for your problem which you got warning message thats common warning you get when you have put phone in charge and if you using it for gaming which consumpts more nergy then, message will be" battery consumption is more then the supply"
so suggest ou to let battery get charged till 30 % and then use it for gaming or any other apps

I've read a few threads here regarding the flicker and it seems some people are confusing flicker with something that I really don't know what to call.
Flicker for me is when there's a stroboscope-ish effect, like when you place your sight just above an old CRT monitor, or when a fluorescent light is on it's last breath. Not when what you see on the screen makes random movements a few pixels in any direction.
I have flicker on my HOX. But it's only noticeable on lower brightness levels. This happens in all applications and in settings menu, everything with white or light grey background, so not related to badly written apps. But I wonder if this really CAN be software related? Has this happened with other models from various manufacturers?

mertzi said:
I've read a few threads here regarding the flicker and it seems some people are confusing flicker with something that I really don't know what to call.
Flicker for me is when there's a stroboscope-ish effect, like when you place your sight just above an old CRT monitor, or when a fluorescent light is on it's last breath. Not when what you see on the screen makes random movements a few pixels in any direction.
I have flicker on my HOX. But it's only noticeable on lower brightness levels. This happens in all applications and in settings menu, everything with white or light grey background, so not related to badly written apps. But I wonder if this really CAN be software related? Has this happened with other models from various manufacturers?
Click to expand...
Click to collapse
I've got what your describing quite a few users have. I believe it could be down to the drivers for the Soc. Might just need a driver update. Only the next update we can tell if this fixes the issue or not. We need to pressure HTC regarding this issue.

nikzDHD said:
I've got what your describing quite a few users have. I believe it could be down to the drivers for the Soc. Might just need a driver update. Only the next update we can tell if this fixes the issue or not. We need to pressure HTC regarding this issue.
Click to expand...
Click to collapse
But is it really possible that a driver issue can cause flicker? I've never seen it before.
I tweeted @htcdev earlier today about it but no response yet. I wonder what the best way to make htc aware of this is. Contacting their lousy customer support feels pointless, it won't reach the people who actually can make an impact.

mertzi said:
I've read a few threads here regarding the flicker and it seems some people are confusing flicker with something that I really don't know what to call.
Flicker for me is when there's a stroboscope-ish effect, like when you place your sight just above an old CRT monitor, or when a fluorescent light is on it's last breath. Not when what you see on the screen makes random movements a few pixels in any direction.
I have flicker on my HOX. But it's only noticeable on lower brightness levels. This happens in all applications and in settings menu, everything with white or light grey background, so not related to badly written apps. But I wonder if this really CAN be software related? Has this happened with other models from various manufacturers?
Click to expand...
Click to collapse
This is what I have, but its far worse on higher brightness levels.
Sent from my HTC One X using XDA

Right guys untick animations in Developer options, restart give it a while, go into camera you'll notice glitches, play a YouTube video you'll notice green bar on the left hand side of the screen in full screen mode. Untick animations and this disappears. It's worrying not sure what to do now.
Edit: can't repeat this but will keep trying as something did trigger it off for the screen to go like that.

Yeah, with flicker I didn't mean anything like having low fps when scrolling through stuff. I meant a quite noticable fluctuation in the brightness of the backlight if that makes sense. It is indeed quite like a CRT monitor with a low refresh rate. I haven't seen it yet when my screen brightness was high, but I'm not sure if it doesn't occur on higher brightness settings. It is also not constantly flickering, It only seems to act up when my mobile data connection is active, although I have seen a very slight flickering with data turned off. I really hope this isn't a hardware issue, the rest of my phone is pretty much perfect and I'd rather not send it in for a replacement after all the trouble I had with my sensation :/

I have the flicker issue, the screen flickers near the center a little bit to the right though, and it is reall irratating, but i can only see it when viewing pictures and on greys.
I hope it isn't hardware!!
tried all the ideas given to stop it but none work for me, still seems to flicker

Me too
I have the screen flickering too.
Im reluctant to return it as apart from this the handset is solid.
It on appears on certain colours making me think its software related.

I also have the exact same flicking issue. From what I have heard it is a software issue rather than a hardware issue. Just to be on the safeside though I am returning my One X to Phones4U for a replacement. Will be interesting to see if the replacement has the same issue.

I made a thorough check yesterday. I downloaded a brightness control app where you can write what brightness level you want so i tried from 3% which was the lowest possible step by step up to 15%. At 15 the flicker stops so its not 30 as I said before. this is my only issue too so I dont dare to replace it just to get a worse phone. My sister is getting one next week so gonna compare them.
Sent from my HTC One X using XDA

I noticed this too, but i believe its a software issue only. When I unlock the phone, the screen flickers while sense runs and the three menu button appears then goes. Once its all settled its fine. I believe this is to do with sense rather than a phone issue, and will be addressed via OTA.

nickp123 said:
I noticed this too, but i believe its a software issue only. When I unlock the phone, the screen flickers while sense runs and the three menu button appears then goes. Once its all settled its fine. I believe this is to do with sense rather than a phone issue, and will be addressed via OTA.
Click to expand...
Click to collapse
Not so sure about it being a specific Sense issue as I have noticed the screen flicking in 3rd party apps such as Spotify.

has anyone had theirs replaced yet? this is doing my head in! really noticeable on a grey background

johnbhoy89 said:
has anyone had theirs replaced yet? this is doing my head in! really noticeable on a grey background
Click to expand...
Click to collapse
Phones4U are sending me out a bag to send it back so hopefully should have a replacement by Monday or Tuesday.

dr9722 said:
Phones4U are sending me out a bag to send it back so hopefully should have a replacement by Monday or Tuesday.
Click to expand...
Click to collapse
I phoned dialaphone there, i made them aware of the problem with my phone, told them if it wasnt fixed with the update then I would like to replace my phone, told me I had until next tuesday to see if its fixed, until I reminded her about distance selling regulations which gives me 28 days from receiving the handset.

johnbhoy89 said:
I phoned dialaphone there, i made them aware of the problem with my phone, told them if it wasnt fixed with the update then I would like to replace my phone, told me I had until next tuesday to see if its fixed, until I reminded her about distance selling regulations which gives me 28 days from receiving the handset.
Click to expand...
Click to collapse
You do indeed have 28 days to return your phone however I wouldn't count on HTC releasing an update before then

[UPDATE] Investigation: Hardware & Poor Build Quality - 100% To Blame For Faults

Here is my Log between 2 One X devices I had in my possession for a couple of weeks. After trying 13 phones from starting this thread, 11 In store and 2 that I owned - I can confirm, unofficially, the Hardware is to blame, along with terrible internal build quality, and buggy software.
Log:
1st HTC One X - S/N: HT23 - Made in Taiwan - Wed 11th April -
The screen is clear and white.
Flickering in Recent Apps screen, anything dulled in the background, anything Grey around hex value #808080.
Battery dies within 20-30 mins of casual use.
Battery takes 2-3 hours to charge from near 15% or less.
Signal randomly stops, and comes on and is unpredictable.
2nd HTC One X - S/N: HT23 - Made in Taiwan - Wed 18th April -
The screen is Yellow, like a more warm tone, like the warm setting you get on some HDTVs.
There is no flickering at all.
Colors are not as good.
Battery is lasting MUCH longer, full day casual use, isn't dying within 20-30 mins of use.
Battery is charging MUCH faster, compared to waiting 2-3 hours, from 15% or less.
Signal never randomly stops and restarts.
2nd HTC One X - S/N: HT23 - Made in Taiwan - Update Thu 19th April @ 8:10pm -
The Yellow screen and clear white screen is caused, apparently, because HTC use two different manufacturers to make the screens.
The Yellow screen is made by Sharp, and the clear white one is made by Acer which also has better colors than Sharp's version.
1st HTC One X - S/N: HT23 - Made in Taiwan - Update Fri 20th April @ 2:38am -
Updated to 1.28, made no difference.
1st HTC One X - S/N: HT23 - Made in Taiwan - Update Sat 21st April @ 12:52am -
Screen is constantly flickering now.
2nd HTC One X - S/N: HT23 - Made in Taiwan - Update Sat 21st April @ 1:43am -
Updated to 1.28, running flawlessly. But screen is still Yellow. An Update can't fix that.
2nd HTC One X - S/N: HT23 - Made in Taiwan - Update Sat 21st April @ 5:57am -
When booting, the screen changes colour and goes more Yellow! Everything washes out.
Log End - Sat 27th April
So, I gave up, and sent them both back to Amazon. After this, I tried 11 phones in store (Carphone Wearhouse) for my Brother, until we found a working faultless phone - or so I thought.
Every phone I tried had similar faults, including an internet cut off issue, and a network cut off issue. Some had dead pixels too.
And guess what, the phone my brother got, eventually inherited faults, including, what I call, Phantom Touch Screen Syndrome, where the screen is randomly registering random presses on the screen, rapidly, and causing havoc. It's like Sonic the Hedgehog is using the phone at hyper speed. The screen started to flicker on greys too, the Wifi hardware fault also kicked in and the signal kept dropping too. This all happened about the beginning of August.
I'm glad that after a few months, the hardware and software issues have finally been acknowledged. It's sad that HTC would lie outright about it all. I'm glad we have been proven right though.
You are taking a huge risk buying this phone, and I would recommend against it, and settle for the HTC One S or the Samsung Galaxy S3 if you want a compromise. HTC will play us for stupid pretending they don't know about it, because they have a reputation to keep and don't want it damaged. It's a business game, and many company's do it.
Would really appreciate if you could click Thanks since I'm new to posting here, help me get started. I've been using the forum for more than a year though.
DM

My One X has a few issues too, but gladly not something that's really show-stopping. Just some screen flickering, a small scratch on the outer ring of the camera lens and a not-so-awesome battery (3,5hrs screen time is my max, with hardly any syncing going on). I got it on the 4th of april.
I'm thinking of replacing it, but in due time. In a few weeks the production process will be more mature, so all small manufacturing errors that can happen now will be fixed.

Zinu said:
My One X has a few issues too, but gladly not something that's really show-stopping. Just some screen flickering, a small scratch on the outer ring of the camera lens and a not-so-awesome battery (3,5hrs screen time is my max, with hardly any syncing going on). I got it on the 4th of april.
I'm thinking of replacing it, but in due time. In a few weeks the production process will be more mature, so all small manufacturing errors that can happen now will be fixed.
Click to expand...
Click to collapse
Get it replaced or a refund. You'll have to live with the issues that will only worsen no doubt over time.

Yep, my replacement I got today is also much better as my first one, in the same way like yours
Seems to be sth like a new Revision?

fekle said:
Yep, my replacement I got today is also much better as my first one, in the same way like yours
Seems to be sth like a new Revision?
Click to expand...
Click to collapse
Does your screen have a yellow tinge?

Delusphere said:
Get it replaced or a refund. You'll have to live with the issues that will only worsen no doubt over time.
Click to expand...
Click to collapse
Looking at how disturbing I currently find this, I don't need a replacement. I can live with it right now. As I said, maybe in about 4-6 weeks, when the device should be completely hardware-bug free in the production process. I am still reading too many stories of people getting new devices with the same or new hardware issues, sometimes even worse than they had on their first device.

I got my 1st replacement HOX yesterday and have had some time to spend playing with it and reinstalling various apps. Here's my thoughts:
On the first boot after charging, I was notified of the new OTA update, which I installed immediately. This brings it up to version 1.28.401.9, which I assume is the same one everyone is being sent OTA.
The screen fit is MUCH better! I sent mine back because the screen was poorly fitted along the top and left side and a particle of dust appeared under the glass after only a week. On the replacement, I can report no easily visible gaps around the screen and it looks to be fitted uniformly all the way around.
This is an odd one. The original HOX had a very smooth, silky feel to the screen and it never picked up a single fingerprint in the week or so I had it. The replacement screen doesn't feel quite as smooth and is definitely picking up prints. I can't give a reason for that, but it's very noticeable.
The replacement gets hotter than the original. I expect it to heat up when playing games anyway with a quad core, but this one is getting quite a lot warmer than the one I had before. Interestingly, it heats up much more when I'm using it while it's charging (via USB or mains). Why would that be?
Images look just as good as they did, with exceptionally bright and even whites all over the screen on startup and everything is crisp and clear in use. No complaints at all with this.
General performance is as snappy as I've come to expect and the apps I've played with do work just as well on this new version.
I haven't tried a few features yet, such as GPS, bluetooth or the camera and will edit this post if there's anything else worth mentioning as I use the phone more.
All in all, I'm very happy so far.

Delusphere said:
I figured I'd start a thread for people to post build differences in their replacement devices, and to log wither the devices stay in good health after usage and time.
I just got a replacement HTC One X from Amazon today, and I can confirm, there are differences between both of them.
1st HTC One X -
The screen is clear and white.
Flickering in Recent Apps screen, anything dulled in the background, anything Grey - #808080.
Battery dies within 20-30 mins of casual use.
Battery takes 2-3 hours to charge from near 15% or less.
Signal randomly stops, and comes on and is unpredictable.
2nd HTC One X -
The screen is Yellow, like a more warm tone, like the warm setting you get on some HDTVs.
There is no flickering at all.
Colors are not as good.
Battery is lasting MUCH longer, full day casual use, isn't dying within 20-30 mins of use.
Battery is charging MUCH faster, compared to waiting 2-3 hours, from 15% or less.
Signal never randomly stops and restarts.
2nd HTC One X - Update @ 8:10pm -
The Yellow screen and clear white screen is caused, apparently, because HTC use two different manufacturers to make the screens. Yellow screen is made by Sharp, and the clear white one is made by Acer which also has better colors than Sharp's version.
1st HTC One X - Update @ 2:38am -
Updated to 1.28, made no difference.
I'll keep you posted on how my new One X is performing regularly. I'll update the Post if I find anything new.
Click Thanks if I helped a little; if this has helped you guys see differences between replacement devices. I've been here over a year, but never really posted haha.
This is different from the 'Returns and Replacements Thread' as this is a Log with a little more detail, and I currently have two phones to compare together.
Click to expand...
Click to collapse
serials of your old and new? HT24 or HT23?

My first one had the clear bright screen with nice even whites too, but it had a screen fit issue, slightly lifted on bottom right and a yellow dot.
Second one seems a great fit but a softer image with a definite yellow tint to it. Interesting to read about the screen differences. Both phones are 23's made in Taiwan.
Interesting to see about the OTA as well, sadly as mine is Three branded I guess it will take longer to get to me.
Not sure what to do on my second phone, not loving this screen as much as the first.

1st one x white ht23 no flicker but some banding and very bad ripple corruption under touch pressure.
2nd one x white ht23 updated 1.28 no screen flicker sometimes abit laggy going through menu's, left hand side of the screen has ripple effect under moderate touch pressure along the side of the screen when crimped between thumb and finger.
will report back next week when I recieve third replacment.

Fyi I got a ht24 with flickering on screen and a dead pixel
Sent from my HTC One X using XDA

anyone else's one x have a dual notification led? e.g it shines through two of the dots vertically

Am i right in saying handsets made in china and not tiawan are better quality?
Mod Or Die

snowwhite007 said:
Am i right in saying handsets made in china and not tiawan are better quality?
Mod Or Die
Click to expand...
Click to collapse
Both of mine have been Taiwan so far and both have had issues, Three are considering sending me a third after I was told on the phone that if I have problems with the 2nd phone I need to tell them within 24 hours or it will need to be sent for repair. I phoned them in 2 or 3 hours and they said it has to go for repair so arguing the point, they are getting back to me on Monday.
Edit: Forgot to add, first phone had a bright clear, pure white screen. 2nd is dull, not as sharp, slightly grainy and yellow tint to everything.

SartoriXX said:
Both of mine have been Taiwan so far and both have had issues, Three are considering sending me a third after I was told on the phone that if I have problems with the 2nd phone I need to tell them within 24 hours or it will need to be sent for repair. I phoned them in 2 or 3 hours and they said it has to go for repair so arguing the point, they are getting back to me on Monday
Click to expand...
Click to collapse
Check your rights with this one. I'm not sure how it applies to mobiles, but consumer law in the UK is very clear about returning faulty products. The law for most goods is that if the item is returned due to being faulty within a "reasonable" time after purchase, then it's the consumer who has the right to choose between a refund, exchange or replacement, not the vendor. Double check that 3UK are allowed to force the issue and make you wait for a repair.

hamdir said:
serials of your old and new? HT24 or HT23?
Click to expand...
Click to collapse
Both are HT23. I updated the thread. Both made in Taiwan.

These problems are all to common to the Taiwan built units.
4 friends and myself have sh23 built phones and not one build issue. Just a random crash here and there.
Try getting a Chinese unit.
Sent from my HTC One X using xda premium

Gave up with this phone. Getting a refund for it. My last idea is to port the ROM of the current working one to the flickering one with the good screen and see if it does anything. But I doubt it will. Plus, I'd void my warranty. I Love and Hate this phone...
I'll wait 2 months until the phone is fully working. They clearly released it too early and never finished it.

I have 2 HOX and both are sh23. And one screen is white and the other one is yellow.

I had a similar experience in Australia with Allphones Optus branded stock. I went through 9 handsets (7 in store and owned 2) and all had issues including dead pixels, yellow spots and screen flicker.
I have just ordered a replacement from Mobicity from Singapore. hopefully I'll have more luck with this one.

Screen Flicker - Just experienced it and its reproducible...

Hi all, I am on my second device but had up until now never experienced screen flicker at all.
I open up power settings, click on the graph at the top and I can see a the graph kind of lightly pulsating/flickering. I've tried it on fixed brightness levels and automatic and seems to do it on both.
Anyone else able to test it and see if they see it too ?

mgdew said:
Hi all, I am on my second device but had up until now never experienced screen flicker at all.
I open up power settings, click on the graph at the top and I can see a the graph kind of lightly pulsating/flickering. I've tried it on fixed brightness levels and automatic and seems to do it on both.
Anyone else able to test it and see if they see it too ?
Click to expand...
Click to collapse
Not having a go but why have you opened a new thread for this when there are loads already?

mgdew said:
Hi all, I am on my second device but had up until now never experienced screen flicker at all.
I open up power settings, click on the graph at the top and I can see a the graph kind of lightly pulsating/flickering. I've tried it on fixed brightness levels and automatic and seems to do it on both.
Anyone else able to test it and see if they see it too ?
Click to expand...
Click to collapse
Tried it on low to high and auto.Not a single flicker.
Sent from my Transformer Prime TF201 using xda premium

cjm1979 said:
Not having a go but why have you opened a new thread for this when there are loads already?
Click to expand...
Click to collapse
because I am not convinced what I am seeing is what others are describing in the other threads as screen flicker, hence why I described it.
If its not appropriate then feel free to get someone to delete the thread.

No flicker here, HT245
Sent from my HTC One X using xda premium

I'm on an HT23 device, bizarre, I've asked a couple of colleagues here at work to check it and make sure its not my eyes playing tricks on me.

Nothing on my HT23.

Before this gets closed.......I'm convinced not everyone can see the flicker and those who can may well experience it to different extents.
Sadly, I can see the flicker of DLP projectors all also know as "the rainbow effect" whereas many others cannot.....

flicker may not be the correct term, its like a really minimal strobe effect, its like the voltage to the brightness is being constantly altered by a couple of percent rapidly.
It's visible on my phone by myself and some colleagues using 50% brightness fixed and auto

and as I said in post 3, if people think this should be in another thread, or I have violated any rules and annoyed people please feel free to get a moderator etc to delete the thread.

mgdew said:
flicker may not be the correct term, its like a really minimal strobe effect, its like the voltage to the brightness is being constantly altered by a couple of percent rapidly.
It's visible on my phone by myself and some colleagues using 50% brightness fixed and auto
Click to expand...
Click to collapse
I have provided test cases for how to reproduce this kind of flicker before. Today I reviewed another two HOXes of colleagues and so far I have not found a single HOX that I cannot make flicker. I know some are defiantly stating their phone doesn't do it. Maybe there is one out there. But I am now up to 8 phones that I have made flicker and I have yet to be shown one I cannot get to do it!
However, all of them require the battery level to be below 50% to make it reliably happen.
And yes, my wife insists she cannot see the flicker...so not everyone may realise/see it anyway.

There are 2 huge threads about the same thing btw, screen flickering...
I have the exact same thing also. It's not only in the battery menu but sometimes when i'm viewing pics, on screen with grey color is dominant it is visible more but i am used to living with that already since it's a known bug and software related, it is going to be fixed for sure in the upcoming updates. And yes, my wife and some of my friends can also see it happening, the strobe effect, trembling kind of thingy that is hard to explain.

jonstatt said:
I have provided test cases for how to reproduce this kind of flicker before. Today I reviewed another two HOXes of colleagues and so far I have not found a single HOX that I cannot make flicker. I know some are defiantly stating their phone doesn't do it. Maybe there is one out there. But I am now up to 8 phones that I have made flicker and I have yet to be shown one I cannot get to do it!
However, all of them require the battery level to be below 50% to make it reliably happen.
And yes, my wife insists she cannot see the flicker...so not everyone may realise/see it anyway.
Click to expand...
Click to collapse
just fyi, i went through 4 phones, all flickered, then 5th and 6th didn't flicker at all. so there are some out there that genuinely don't flicker.

I see it too. As if the refresh rate isn't correctly set.

http://forum.xda-developers.com/showthread.php?t=1617009
Keep it in there.
http://forum.xda-developers.com/showthread.php?t=1597448
Or here.
Sent from my HTC One X using xda premium

There are two components to what people are referring to as "flickering."
1) Nvidia PRISM controls (or tries to) the backlight to save energy.
NVIDIA PRISM Display Technology - PRISM (or Pixel Rendering Intensity and Saturation Management) reduces a mobile device’s backlight power while simultaneously enhancing the pixel color to deliver the same visual quality with substantially extended battery life.
It's more noticeable than it should be and is an issue on the Asus Prime also. We may have to live with it in some form.
http://forum.xda-developers.com/showthread.php?t=1542367
2) Graphics issues including "flickering," task bar corruption, funky appearance of the camera app and others are related to the Teg3 graphics drivers which are supplied by Nvidia. HTC acknowledged in the thread this should have been posted in that they identified the problem on May 2 and an update (not 1.29) was forthcoming. The Prime experienced this too and it took multiple updates to resolve. Let's hope Nvidia/HTC gets it right in one shot.

twistedh said:
http://forum.xda-developers.com/showthread.php?t=1617009
Keep it in there.
http://forum.xda-developers.com/showthread.php?t=1597448
Or here.
Sent from my HTC One X using xda premium
Click to expand...
Click to collapse
Thanks for the reply. Like I have said twice happy for someone to delete or lock this thread if it's not appropriate.
Sent from my HTC One X using Tapatalk 2

Closed, redundant
Please read and search before posting

[Q] HTC One X touchscreen dead spots.

I got my phone the other week and after 2 hours of using it I noticed a strange behaviour.... I had a horizontal band in the middle of the screen that would not response to touch.
Since then I contacted my carrier to send me a new one, and of course they delay me with all the madness of black friday and "Orange black week" but I should get a new phone sometimes next week.
In the meantime I noticed something, at some point the touchscreen woked, I started to question myself why does this happen? I read a few posts on the internet about this and tested some things for myself and I got the point where if I rub the phone against my wool coat the touchscreen would start working,although when it works it somehow overloads and no touch input is registered until I turn off and on the screen. Obviously when I rub it on my coat the touchscreen get electrostatically charged which somehow makes it's "wheels" turn.
This happens everytime I restart the phone and after some time of sitting idle.
This is really weird behaviour, I'm certain it's a hardware fault, can something be done, a final solution? Rather than constantly rubbing my phone on my coat? (it looks weird ).

Try recalibrate, in keyboard settings - advance or choose reset calibration.
I have dead spots at the sides, if I use a drawing app and try to draw a line from left to right of the screen, it don't actually go to the edges.
I'm kinda hoping its just a calibration problem that'll go away in a future update, if not I'll send it in.
It's kinda annoying not being able to skip flash video using the bottom slider/progress bar, first halve works, but then gets more difficult further than halfway.
Sent from my HTC One X

My dead spot looks like this. It s about 20% of screen setate.
Sent from my HTC One X using xda app-developers app

Did you try the calibrate option?
If it don't help then I guess its hardware and time for warranty maybe.
It helped me a little, but I still got small area's, smaller than before.
Sent from my HTC One X

Common hardware fault, there are many threads about it if you search

m3s_4ev3r said:
My dead spot looks like this. It s about 20% of screen setate.
Sent from my HTC One X using xda app-developers app
Click to expand...
Click to collapse
I got the exact same problem with an idevice earlier this year. Hardware fault nothing to do with calibration or software. Better send in for repair ASAP.
Sent from my HTC One X using xda app-developers app

bingbing88 said:
I got the exact same problem with an idevice earlier this year. Hardware fault nothing to do with calibration or software. Better send in for repair ASAP.
Sent from my HTC One X using xda app-developers app
Click to expand...
Click to collapse
Yes, Wednesday I made a request for a new unit, should be here on Monday Tuesday, hopefully

This was mine after changing display. So I changed the display with another one, and now there are no problems. Got a refund for the defective one. The dead spot only occured 1 or 2 times in the week I had the faulty display.
Sent from my HTC One X using xda app-developers app

so I have exactly the same problem but it doesnt occure while its charging.when I unplug the charging cable,there is it ! any ideas ?

What should be the cost
Hi,
I have the same problem, is it worthwhile to send for repair, or I may buy a new one?
One is the expected cost of the repair of replacing the defected hardware?

here is my solution
nadne said:
Hi,
I have the same problem, is it worthwhile to send for repair, or I may buy a new one?
One is the expected cost of the repair of replacing the defected hardware?
Click to expand...
Click to collapse
put a piece of paper like the picture below. It fixed mine. Hope it fix yours.

Do you have any explanations why is it fixing it?

Screen Issues: Right side of screen lags

After using my Pixel daily for 6 months (got the first batch, pre December 25th) and having next to no issues with it (wifi strength sucks, even with Xceed kernel, but it's better than it was), half of my screen decided it wanted to go goofy. I was using it two days ago and everything was working fine, I used it yesterday morning for a few minutes and then plugged it into the Google charger that came with it and let it sit on my couch for a few hours while it was charging. I got on the bus, and pressed the power button to wake the screen and nothing happened. Thinking I had it turned off I held the power button for a few second, and still nothing. So I held it for 30 seconds and when it brought up the bootloader warning the right side of the screen was glitching, same thing happened on the Google logo, boot animation, and continued into Android. I powered it off, hoping it would go away but it didn't. The slight glitch then turned into static "snow" which will then change sporadically based on what I'm doing on the tablet. That area of the screen still works perfectly because touch input works, and when I take a screenshot and view that area of the screen it shows up just as it should. It seems like there is an overlay on the right side of the screen that won't go away. Since it happens from the moment you turn it on makes me think it's a hardware issue but the fact that the screen itself still works perfectly makes me think it's a software issue. I haven't flashed the stock ROM back on it yet or locked it backup yet since I don't have a type c to type a adapter with me, it's still under warranty but I wanted to see if you guys could help me fix it before I sent it back.
TL; DR

This just started happening to me today, exactly as you described.

Interesting. I just RMA'd mine, should be receiving it within the next few days.

I'm returning mine too. I've determined that it's hardware because when I applied pressure around the edges of the screen I felt something slightly pop into place and then the problem was temporarily corrected. If I apply slight pressure to parts of the screen it happens again.
At this point I've flashed back to stock and I'm in an eternal recovery bootloop that I can't fix because acquiring USB drivers that work is incomprehensively difficult.

Just had mine go as well :crying:

Oh wow, that sucks. At least I'm not the only one though. I just got my new one a few days ago and all is well so far, hopefully this one won't screw up. RMA process was very smooth.
As for the USB drivers I usually have to install them manually by using the "select driver from a list"
Sent from my Pixel C using Tapatalk

Same issue on my first one
Here's my post from the mapping problems to serial # thread.
Google RMA process was fine once I was finally able to get a chat window with them.
Be sure to post to the problem mapping thread to help others!!

Add me to the list. Just went through the RMA process and am now waiting for the replacement to come. I can deal with the wifi issue and the random reboots, but having half of your screen corrupted is unacceptable. I don't even know how this is possible unless some genius at the pixel C team decided that it's cheaper to source half a screen and glue them together.

It's kinda crazy that I couldn't find this happen anywhere then all of the sudden it's happening to you guys! I'm extremely confused how it happened and what actually went wrong with it.

brando56894 said:
It's kinda crazy that I couldn't find this happen anywhere then all of the sudden it's happening to you guys! I'm extremely confused how it happened and what actually went wrong with it.
Click to expand...
Click to collapse
Most likely some latently defective silicon from Nvidia.
Sent from my Pixel C using Tapatalk

pkelly517 said:
Most likely some latently defective silicon from Nvidia.
Click to expand...
Click to collapse
I don't believe so, I think it has more to do with the screen, since it would occasionally correct itself, and even when half the screen was screwed up, screenshots would come out perfectly. It's almost like there's something stuck over the right half of the screen.

brando56894 said:
I don't believe so, I think it has more to do with the screen, since it would occasionally correct itself, and even when half the screen was screwed up, screenshots would come out perfectly. It's almost like there's something stuck over the right half of the screen.
Click to expand...
Click to collapse
Of course screenshots would come out perfectly. It's just a memory dump of the video RAM. This is a problem with getting that memory to the display. I think the display driver is part of the SoC. I could be wrong. Maybe it's a cable.
But it seems like a bit in the display driver is never getting enabled.
Sent from my Nexus 5X using Tapatalk

I'm fairly certain that it's a physical issue with the screen or the connection to the screen. When I had this issue I saw a visible change when I applied some light pressure around the edges of the screen. At one point it almost felt like something popped into place and the problem went away (then resumed.) Also, if I applied some pressure on the lagging side of the screen I would see some odd behavior as if the connection was fluctuating. I didn't squeeze hard, but it didn't take much.

I have had TWO Pixel Cs do this now. The first got the dreaded half screen of death after 5 months back in May, and the replacement that Google sent me has just started doing it today after just 3 months. The second device was from a much later batch than the first.
My experience so far makes me think that all Pixel Cs might have this hardware defect - it's just a matter of time before it happens. That's kinda gutting if it's true as for me this is the best tablet out there, and I can't see anything else coming close to replacing it.
About to contact Google for RMA again I guess. Third time lucky maybe...?

Wow really? That's no good!

Pixel C Screen Issues
Add me to the list, as of this morning. 8 months old.

SpaceGooner said:
I have had TWO Pixel Cs do this now. The first got the dreaded half screen of death after 5 months back in May, and the replacement that Google sent me has just started doing it today after just 3 months. The second device was from a much later batch than the first.
My experience so far makes me think that all Pixel Cs might have this hardware defect - it's just a matter of time before it happens. That's kinda gutting if it's true as for me this is the best tablet out there, and I can't see anything else coming close to replacing it.
About to contact Google for RMA again I guess. Third time lucky maybe...?
Click to expand...
Click to collapse
what's the serial# of your replacement?

lude219 said:
what's the serial# of your replacement?
Click to expand...
Click to collapse
My second Pixel C's s/n is 61250***** This one has developed the screen problem on the right of the screen
The earlier one I had was 5A230***** This one had the problem on the left side of the screen
I assumed the second one was from a later production batch than the first, but must admit I don't really know that.

SpaceGooner said:
My second Pixel C's s/n is 61250***** This one has developed the screen problem on the right of the screen
The earlier one I had was 5A230***** This one had the problem on the left side of the screen
I assumed the second one was from a later production batch than the first, but must admit I don't really know that.
Click to expand...
Click to collapse
According to this http://forum.xda-developers.com/pixel-c/general/mapping-problems-to-serial-t3274660 there still seem to be some issue with the #61250 batch so I'd try for a 3rd time to see if you get a 6202000 one (what i have now). It's stupidly frustrating but the Pixel C is too good to give up now.

lude219 said:
According to this http://forum.xda-developers.com/pixel-c/general/mapping-problems-to-serial-t3274660 there still seem to be some issue with the #61250 batch so I'd try for a 3rd time to see if you get a 6202000 one (what i have now). It's stupidly frustrating but the Pixel C is too good to give up now.
Click to expand...
Click to collapse
Thanks for the info. Not sure I'll be able to determine what s/n Google sends me next time, but here's hoping I get a good one and that I've just been unlucky so far. I won't be able to RMA until I get home from vacation later in the week anyway. If they send me another Pixel C that develops the half screen problem down the line, I will surely have to get a refund and maybe go for a top end Chromebook (with Google Play of course) next time.