yashsingh1/xdaforums huggingface dataset:
[HTC One X] lawrence750:
as has been mentioned, it often only flickers when battery is less than 40% ish battery, not on charge, and when under cpu load.

so if it flickers elsewhere (as i've seen, but can't get it to happen on this image currently) then you probably still do have the flicker problem, although i hope not, as that would give the rest of us some hope lol
[HTC One X] DazNoonan:
I'm starting to lose hope to be honest... :(
[HTC One X] oxfordmark:
Yeah it is...I really dont know if i should take it for an exchange. Some people have had 4-5 phones with this issue.
[HTC One X] joplayer:
Hi guys :)

I'm coming up with two new theories about the flickering problem ! Unfortunately they are in contradiction as one suggests it's a hardware problem and the other that it is software :(

So for the first one I think it can be hardware related on a complete batch of One-X. This batch was delivered to some shops. That would explain why many of us still have a faulty device on exchange. Because they are still on the same shop so on the same delivery from HTC.

Second theory : It's software related : indeed I noticed the exact same flickering on a friend's Motorola Atrix today and he told me that it was only happening with this ROM. And everybody knows the atrix is tegra 2. So Might be an older issue than even though at first :)

So I don't know what to think as always. My new device should come by thursday and I really pray for it to be flicker free !
[HTC One X] oxfordmark:
I don'tknow what to do. Will the T-Mobile store think im being too picky? Should I call to find out what model they have in stock (HT23) is what I have now.

Or just pray It's software and live with it until a fix? It's worrying that when I contacted HTC they didn't make out it was a known issue

Perhaps every HOX has this issue, all eyes are different.
[HTC One X] BustaVR6:
Yep :(
[HTC One X] lawrence750:
The second i see a flicker on mine, even if it happens just once and never again for the next 3 days, I'm now assuming it has the same issue and returning it. (my dhd has not flickered once ever in the 2 years i've had it, not when plugging the charger in, or on grey backgrounds, or any backgrounds.)Don't go over the DOA 7 days or however long you have. just my opinion ...

EDIT: im taking no chances, reason i don't wait for it to flicker permanently is because eventually that is what happens, it shouldn't ever flicker. If it has/does flicker, likeliness is that it will eventually start flickering permanently. my experience is that it takes around 4-5-6 days to start flickering all the time.
[HTC One X] oxfordmark:
I will of had it a week tomorrow. When I called the store they said they will exchange it. What models are prone for the problems? I'm ht23
[HTC One X] hamdir:
ok thats it what kind of flickering it is please we need videos, did anybody post a video?

if the store is telling your too picky means its not a obvious problem, i used my phone for over a week and noticed nothing

this? http://www.youtube.com/watch?v=M3GierGP6a4&feature=youtu.be

its the well known glitch and its software?

is the flickering you are all talking about???????
[HTC One X] DazNoonan:
Agree with this statement, if you spot flicker and your within those 7 days then get it exchanged. Now don't hope the next one will be better as it won't be as I believe this flicker is there in all the handsets; well unless HTC has resolved something but not made a statement that is.

Now I still believe (and have done from the start) that it's a software problem and not hardware, but until there is a statement confirming this then the safest thing to do is exchange your handset. Now if it is confirmed as software at some point, you might question why you bothered exchanging 10 handsets just for an update to resolve the problem... This is the beauty of hindsight I guess and the fact it's impossible to know what will happen.

If its hardware then that's a whole another story but you can see where this is going... :)

---------- Post added at 05:11 PM ---------- Previous post was at 05:10 PM ----------

You can't get a video of it (I've tried) its too fast the camera just won't pick it up... I honestly wish I could get one though.
[HTC One X] joplayer:
Maybe going to sue them on my side but as I don't have any money I must evaluate the risk at first. This if for a reason that make me fear the fact to send it in a repair center.

My HD2 touchscreen stopped working one month before the end of the guarantee. I sent it to repair and the repair lasted only two monthes then the exact same failure happened again!!! That is outrageous and some laws in France are on my side. I called HTC a thousand times and they refused to let me talk to someone compêtent. They ignored everything I said about the law and didn"t reply to my recommanded letters. However I'm a student I don't have any money or time. And I have no chance against a big company like that.

I'll be really in trouble if my next exchange device still has the flickering issue...
[HTC One X] oxfordmark:
So do you think Its pointless asking for an exchange?
[HTC One X] DazNoonan:
If your within the 7 days then no I don't. What more have you got to lose? With Vodafone I know how exchange works and how quick etc... it is. I could ring them say tomorrow and on Thursday and exchange would happen and I would not be without a phone etc... This might not be the case for you though and if its a ball ache it could be more hassle than its worth.

I've began to just asume that when I exchange the device the next one will just have the same problem; maybe not straight away but I'm convinced it will get it. Now you could ask why bother exchanging and my simple answer is again "Until I get a statement from HTC on this I am not chancing anything".

The major problem is when you think things are going well and you maybe don't see flicker for the first 7 days and you think all is good, then you do an update and that breaks it (you will see people have posted about this). This again is why it leads more towards software causing the problem.
[HTC One X] hamdir:
http://www.flukeworld.com/HTCOneX_Screenshot/Screenshot_1.jpg

this? this is the freaking software glitch happening to all HTC One X at its current software and goes away

too fast to capture on video?????

from my one X i noticed a kind of "v-sync off flickering" sometimes over graded background like two frames is this the issue? happes for like a fraction of second??? this is the problem you all are exchanging your phones for?
[HTC One X] DazNoonan:
That is not the glitch we are talking about, we are not talking about a glitch. We are talking about backlight flicker on mostly grey background.
[HTC One X] joplayer:
The flickering issue is not that at all !

It's the fact that you backlight acts like a strobe on some backgrounds (mainly grey)
[HTC One X] oxfordmark:
But It'sa hassle keep havingto factory reset then install everything. Maybe if they have a HT24 ill swap
[HTC One X] DazNoonan:
This is how inconsistant things are...

Pickup phone, go into messages, type & send a message, go back to message list, hold down finger on conversation - No flicker in the background.

Return to homescreen, click on multitasking, close messages app completely - Not clicker in the background.

Lock phone, message comes in, unlock phone, read & reply, exit to home screen, open up multitasking, close messages app completely - Oh look my best buddy flicker is back.

That was all within the space of 5 or so minutes. It's mental.

For reference: Battery at 48%, Temp 25.4 degrees
[HTC One X] hamdir:
like u just described it its software

if its happening all the time than its hardware

i thought the affected phones will always show it at the snow+sun photo?
[HTC One X] joplayer:
:confused::confused: Indeed that is really weird... however the device I sent back always had flicker no matter what but what you are reporting is really interesting

---------- Post added at 04:32 PM ---------- Previous post was at 04:32 PM ----------

Actually as I just said It always happened to me. So maybe we got two kind of issues...
[HTC One X] DazNoonan:
Don't get me wrong that was the first time I had not seen flicker in a while and it didn't last long did it :( Normally it's always there too, but normally the CPU is above 30 degrees I believe also so maybe something points towards that.

Talk about us all clutching at straws or what trying to make some sense of this.
[HTC One X] MarylandCookie:
To be honest guys, to me it sounds more and more like a software issue.

The fact that you go in and out and start and kill apps appears to be causing the software some sort of issue hence the flicker.
[HTC One X] oxfordmark:
Sometimes it could be the reflection on the screen
[HTC One X] RomNoR:
Snow and sun photo in the gallery is the best way to see this in a most obvious way.
[HTC One X] DazNoonan:
Seriously? If you believe this then I can only asume you have not seen the flickering in action. When its there its clear to see there is a problem and not simply a reflection on the screen.
[HTC One X] oxfordmark:
I have... I was thinkingin a HTC way.... Seeing as no one knows about it
[HTC One X] DazNoonan:
Agreed, You should see some flicker around the sun on the grey part. The multitasking screen is also a good place when you look in the centre. Another place is on the brightness screen when you have the popup and also in the messages app when you long press on a conversation. Oh and not to forget when the Google Play store is loading... Wait theres lots of places isn't there lol.
[HTC One X] BarryH_GEG:
There's no question it's a real issue. And it does show up inconsistently on devices that are affected. It also doesn't exist on every device. I'd bet a very small percentage are individual Teg3 chips that are out-of-spec which would be h/w. The rest are almost surely related to Nvidia's drivers and low-level code which is s/w. The fact that no XL has experienced anything similar kind of lets the display and HTC provided s/w off the hook as they’re identical on both devices.
[HTC One X] Whiskey103:
Guys... c,mon please watch your language a little bit.

Keep in mind, we have members of all ages ;)

Whiskey

Forum Moderator
[HTC One X] fekle:
My Second One X just startet flickering a few days ago, however flickering is getting stronger... Im getting my 3rd Phone now, hopefully a MT24!
[HTC One X] hamdir:
XL is not even out

and i tested the snow and sun image on every device i touch six so far and never seen it, on all brightness levels, i also used display tester to check

anyway if it disappears than we are dealing with the same kind of software problem as the glitch
[HTC One X] janne303:
I have reseted my device before sending it DOA. I just wanted to be sure it was faulty so after haveing it off for an hour I turned it on. And in the setupmeny it flickered so I dont think is a getting warm och cpu issue.
[HTC One X] lawrence750:
It starts off intermittent, then over a few days it develops into a permanent flicker.

To me (and working in a software company so have some experience in diagnosing bugs and also hardware failures) this is almost definitely hardware, I can't think of anything software wise that would cause it to get gradually worse and worse
[HTC One X] hamdir:
seems its a tegra issue just google screen flicker and tegra, different tegra devices

HTC would have never went NV if qualcomm finished their 4x s4!

im almost convinced 99% of the One X issues are all Tegra3 caused

again the HT24 i had, had no flicker
[HTC One X] RomNoR:
I just finished talking to HTC and i think i want to throw the phone out the window.

"TOUGH LUCK

RETURN PERIOD IS OVER

SEND IT TO THE BUTCHERS SO THEY CAN PUT ANOTHER DEFECT SCREEN IN YOUR PHONE"

DONT FORGET TO BUY OUR NEXT PHONE!!!

THANK YOU COME AGAIN.

Great.

I wish their stock crashes into the f***ing ground!!!!
[HTC One X] oxfordmark:
I am nottakibg it back.some with ht24 have the yellow spot problems. All screen issues should be reported to HTC. And keep asking if they know of this issue.
[HTC One X] lawrence750:
That still doesn't explain how it gets worse though, if it was a tegra/software issue, then yeah it would be there, but it would be there from day one, and the symptoms would remain the same. This isn't the case, I bet I won't see it for a couple of days, but then come to 4 days from having it, and it'll be there almost permanently. It's like theres a component that is slowly (well quickly) but surely failing and if I had a device long enough, it would probably pack up altogether.

Btw I'm on the second ht24 device, both had flicker issue

Edit: I'm on the first day with this one, and have already seen it several times. It's just not permanently flickering yet.
[HTC One X] hamdir:
yes but both our polls are not crossing 25% defect, 800 voters so far

look dont get me wrong i was lucky to able to return mine, although all my friends thought im being picky it was beautiful and perfect with just a slight flex to the left of the screen

now i cant wait to buy it again
[HTC One X] cagdasal:
Im currently on my 3rd phone, its a HT24 and i still have some flicker. I've had this one for 3 days now, was ok on day one, no flicker at all, but now i am starting to see flickering on low brightness levels. This is such an annoying issue, going to get my 4th phone tomorrow. I wish HTC would just let us know whats going on....
[HTC One X] lawrence750:
Wouldnt that fact prove it is hardware then :D

Either that or people simply can't see it flickering, my mum couldn't see it, even with her glasses on (kinda leads me to believe only people with decent eyesight can actually see it lol)
[HTC One X] hamdir:
take a video

you say it gets worse

someone with the worst case please take a video
[HTC One X] joplayer:
Seriously I tried to make a video but it really is too fast for a camera. It mainly is a fast luminosity change and no camera can capture it. Maybe a professional one and I even doubt it...
[HTC One X] hamdir:
lol this is crazy
[HTC One X] BarryH_GEG:
It's been released in Canada and demo units are now in AT&T corporate stores.

---------- Post added at 10:54 AM ---------- Previous post was at 10:47 AM ----------

All the phones were built within 30 days of each other, have the same h/w, same s/w, and were built on the same assembly line (HT). Some flicker and some don't. Whatever the issue is it's not consistent; either across phones or even on individual phones. The Prime forum went nuts trying to isolate the issue and couldn't because it appeared differently on affected devices. Updates eventually stabilized everything and why individual devices behaved differently in the first place was never explained.
[HTC One X] lawrence750:
I'll try and get a video when it gets to be permanent again on this phone..

I would pay for it to be software as well tbh, just ain't gonna risk going outside the 7 days only for HTC to say oh yeah sorry guys its hardware, but we don't give a crap about you because you've already bought it now.
[HTC One X] janne303:
Doesnt HTC got 14 days DOA? They have that in Sweden.
[HTC One X] The Asgard:
The flicker / shimmer on grey and other certain colours I believe is due to voltage regulation. Mine was fine when the battery was full but started to shimmer when the battery dropped below 80%.

My replacement should be here tomorrow so will see how that goes.
[HTC One X] oxfordmark:
So would a software update foix it
[HTC One X] joplayer:
I think it could but the downside could be it then creates the problem to those who didn't have it by solving it on some devices.

And so far this could also be unsolvable via software.

No communication from HTC so everything here is speculation.

At 600€ we just don't take risks and get exchange when we can
[HTC One X] The Asgard:
Unless the voltage regulator is programmable, no. I suspect it would only get worse with age.
[HTC One X] BarryH_GEG:
A lot of what was done to correct the issues on the Prime with s/w centered on voltage and cycles. The first update to fix display and reboot issues totally hosed battery life and changed (restricted) the clock speeds and stepping of the SoC to try and normalize the behavior across devices. In the process, bad devices became good and vice versa. The second update returned the clock speeds and introduced some new and returning (but fewer) graphics and performance issues. The third and fourth stabilized everything. I know, not the news you wanted to hear. Also, the Teg3 chip used in the One X isn't the same as the one in the Prime. The application in the One X is the first it's being used in production.
[HTC One X] jonstatt:
Yes I have said this in a few threads now, that the backlight has a voltage regulator. It is NOT part of the screen. It is on the mainboard. Therefore both types of screen being used in the One X (the whiter white ones and the yellowy white ones) will suffer this same problem.

Having now seen a 7th handset today, from a user who swore blind they didn't have the flickering, and then i found they did, I am more convinced this is an endemic issue with these phones. Some do it very easily, and some require a specific brightness level, battery level, heat level, CPU level etc etc to cause it to happen.

I believe it is a bad batch of voltage regulators, or even just a bad choice of component, and until HTC realise this, they will keep churning out these flickering handsets.

There is a very small chance it can be improved in firmware...I would not hold onto that thought though if you have limited return window.
[HTC One X] BarryH_GEG:
I've run every test described or shown on video that's been posted on my One X and it doesn't flicker. And I'm as anal retentive as any one here.
[HTC One X] The Asgard:
Sounds like you have a good one.

My home forum is OcUK. I have raised the issue in the One X thread and I know of only 1 person with the issue. May be its isolated or may be only certain people can see it because it's refresh rate related. Or may be we are just too picky.
[HTC One X] jonstatt:
But how often would have you run the scenario that triggers it on mine?

1) Battery below 40%

2) Brightness level about 1/3 up but with auto-brightness enabled (so you have to find a room light at the right level)

3) Open web browser to an XDA forum page with a lot of entires like this general forum

4) Watch for flicker while the web page is rendered

Once the page is fully loaded, the flickering stops. So far I haven't found any other way of creating the flicker...it really is that specific. How can you be sure there isn't a magic combination for yours? I am not meaning to scare you...I just mean it could be lurking where you haven't seen yet.
[HTC One X] BarryH_GEG:
No, it's real. The fact that the XL isn't experiencing this points to things that are different between the devices. Outside of the SoC it could have a different PCB and other components like regulators etc. But to drive volume and save cost HTC would want to try and keep as many parts as possible the same. So I'm sticking with something Teg3 related.

If you really want to deconstruct the possible problem think of this. The s/w is anticipating a range of responses from the h/w. If the h/w is responding outside that range the s/w falters. The fix is either to try and get the h/w to behave correctly via low-level code or adjust the s/w to anticipate a broader range of responses. That’s probably what’s happening right now in the basements at both HTC and Nvidia. While there's no way to confirm it because neither Asus nor Nvidia explained the problem in the Prime, that's the general consensus of what the “fix” entailed.

And I’m sure HTC is as horrified as we are that this is happening and that it wasn’t caught before the phone’s release.

---------- Post added at 12:23 PM ---------- Previous post was at 12:15 PM ----------

I'm not sure I tried that exact combination but it sounds similar to others I did try. Here's my view on mobile device problems. If I can only create it by doing something I'd never normally do than it's not a problem.

As an example. Every i9100 display shows banding. To see it, you have to: set the display at the lowest brightness, display a solid grey background on the screen, have it in a pitch black room, and take a picture of it. Mine had it but since I don't normally photograph my phone's display I never considered it a problem.

No phone, including the One X and SGS3 will ever be perfect. (not that the flickering is an excusable issue)
[HTC One X] hamdir:
nvidia is such a....
[HTC One X] The Asgard:
I know it's real because I have just sent my phone back for replacement.

All assuming what ever is causing the issue can be adjusted.

I firmly believe its all down to voltage regulation because the battery level and load affects the degree of flicker.
[HTC One X] hamdir:
guys check the latest conversation on the gap and flex poll thread
[HTC One X] shrubz:
I've got a screen flicker now as well, wasn't there when i first got it, it's like a strobe light effect and is only visible on light grey backgrounds.

Have phoned HTC and have got a replacement coming on Thursday, so fingers crossed this one is OK.
[HTC One X] joplayer:
We already had claims software update would solve the problem.

However as I said at 600€ I can't take the risk and as I can I take an exchange device :)

And you can see on the pledge thread that from what he talked with HTC they are looking into it but they didn't claim to have a fix at all! So communication from HTC is really hard to get :)

If it indeed is solved by software later I won't regret my choices as it will have cost money to HTC to make all those exchange and I hope they will learn the lesson and release their devices without faults like these next time !
[HTC One X] lawrence750:
+1
[HTC One X] oxfordmark:
The sad and worrying fact is that HTC are not making us aware that the know about the problem.
[HTC One X] joplayer:
Finally I got a video of what the flickering is !!!!!

It's showed on macbooks that had the problem.

The right one is the one with the issue.

I think you will agree it looks like our problem ?

http://www.youtube.com/watch?v=20-NEgXUk5o
[HTC One X] RomNoR:
My phone is charged to 100% now.

The flickering is not as bad...

i don't know what more to make of this.

It has ruined my whole experinece of buying a new flagship phone.

What a flop....

Amazing that this BS started at the end of my return period and i thought it would go away with the update...

You try to be a decent consumer and you eat **** for it.
[HTC One X] lawrence750:
They have , I posted the chat transcript of it earlier
[HTC One X] farnsbarns:
HTC are very aware of it. They don't know, or at least are not saying whether it's software of hardware yet.

See this...

http://xdaforums.com/showthread.php?t=1617009

I think they're on the verge of making some promises on this issue
[HTC One X] oxfordmark:
Oh good
[HTC One X] oxfordmark:
I just charged my phone to full,flicker has gone.
[HTC One X] lawrence750:
Yup wait till it gets low again and it shall be back
[HTC One X] oxfordmark:
Could still be a software problem I hope
[HTC One X] DanteGR:
Nice finding mate!

I finally confirmed what all of you were talking about and can say that I have not seen it on mine.

Now, as i have th device only since Friday I keep my fingers crossed that it won't happen in the coming days as most of you had it after using the phone for about 2-3 days or even more...
[HTC One X] holygeesus:
I signed up to post this in case it helps or at least adds something to the discussion.

I have very brief flicker when there is movement on screen i.e. when browsing and scrolling up and down, or when loading text messages etc. It would then settle down until you start moving around the screen again. It's like the auto-brightness is too eager and continually trying to adjust itself - this was happening on all battery % and when plugged in.

Turning off auto-brightness and turning the display up to about 60% has completely solved the issue for me - no flicker now whatsoever, so either my unit has a faulty sensor or the auto-brightness software is too picky.