Develop Bugs

Found black blotches on my screen

Okay. so I have a few black blotches on my screen, but I can only see them on a certain kind of black, but here's how to tell if you have this issue go to phone click on the menu key than call settings now go to call rejections from in there look at your phone screen at all every angle possible, if you don't see black blotches than you don't have an issue like I do.
Good luck
Also try doing this in the dark

Andrew149 said:
Okay. so I have a few black blotches on my screen, but I can only see them on a certain kind of black, but here's how to tell if you have this issue go to phone click on the menu key than call settings now go to call rejections from in there look at your phone screen at all every angle possible, if you don't see black blotches than you don't have an issue like I do.
Good luck
Also try doing this in the dark
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Looks like a manufacturing defect, the blotches are in the same place on everyone s phone.

Weird mine are on the bottom half of the screen
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

It's normal. Samoled at its finest.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

I don't see them on that screen because the blacks are too black also I'm in a brighter lit room. But if I am watching a movie and it goes dark I can see minor blotches.

I noticed this and I took it to warrenty but they refused to replace or fix it. I dunno what to do. Is this breach of contract?
lalala SGS3 lalala

You would have to LIVE WITH THE STAINS AND BLOTCHES...
This is widely known issue known as OLED "mura" effect
It has stains and many black dots affecting the Galaxy S2, Note, S3, PS Vita and even some of the Galaxy S1 devices...
This is due to cheap manufacturing and QA ...

mms6 said:
This is due to cheap manufacturing and QA ...
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Is it this, or is it a limitation of the AMOLED manufacturing process? My blotches are very minimal and I very rarely ever see them. I would much rather have the contrast of the AMOLED tech with the blotches than have my S3 equipped with an LCD.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

Definitely not an limitation of the manufacturing process.. My first-gen Samsung Captivate's screen blacks are actually deeper than the my Galaxy S3 with maximum brightness, displaying the same completely black #000000 screen in a completely dark bedroom at night...
Also what I have realized is that on my Captivate's screen, it do not has any of the stains or the dots on it when viewed in a dark room.. It has a little bit of "banding" problem on the top portion of the screen, but it is less noticeable than the stains and especially the "black dots" effect...
I have the EXACTLY same problem with my PS Vita similar to my Galaxy S3, but the PS Vita has much more stains than dots than the GS3 (more imperfection) although the PS Vita is lower resolution, and slightly bigger screen. The PS Vita uses the Samsung Super AMOLED Advanced (pentile matrix)...
Also, the screen production is not consistent on the GS3. My first GS3 has Wi-Fi random disconnection issues, so I exchanged it under the 15 days policy from Rogers, for another GS3.. The original GS3 has a lot of "black dots" (approx around 15 or so) and slightly stained on the top right corner.. The exchanged GS3 was slightly better and had no stain marks and only a few black dots and a slight pink spot (when viewed on white #FFFFFF).. Also I had to exchange my second one back to the store because my battery cover had some hairline cracks within a week of usage or so..
The THIRD AND FINAL GS3 I received did not have any stains, but suffered a more severe "black dot" effect (approx. 15-20 dots).. But my Wi-Fi issue was fine, and there are no pink spots, so I have been using it until now and did not really bother an exchange....
If you are extremely lucky, you might get a "perfect" or "near perfect" AMOLED in the current generation... But still the QA is going down the toilet when compared to my First Phone with Super AMOLED, my Samsung Wave S8500 (the screen was PERFECT on this one, NO stains/dots/smudges etc...)
Samsung is cutting costs and lowering QA because it is fulfilling more AMOLEDs for other manufacturers such as themselves (its is not just the top of the line Galaxy S# series using AMOLED, mid-end and some lower ends Galaxy series are using AMOLED as well) Also Samsung has to supply for Motorola, HTC (fewer models though), Sony (only for PS Vita), Fujitsu (for the Japanese Keitai smartphone from KDDI and Docomo) and so on.....
Now all this happened in quite short period of time, Japanese keitais with OLEDs came on the market last year... Samsung Wave came onto the market in 2010, there is only a 1 - 1.5 years in between here... The demand exponentially increased as smartphone sales went up, and more manufacturers are contracting Samsung to build OLEDs..
Personally, I do not think the process of making OLEDs have improved....
THE ONLY area it might have improved is probably the PRINTING... Printing higher resolutions has allowed Samsung to increase the pixel density and decreasing the subpixels (and this is probably why the Super AMOLED HD screens are dimmer than the original Super AMOLEDs at the same maximum brightness)
That is all I can say for now...
Live with the miniscule defects such as stains, dots, smudges etc on your OLEDs.... These problems are minor issues anyways since you have to be in a very dark environment with almost complete black #000000 image to be able to pick up the "defects".... Wait for a few more generations and allow the manufacturing process to improve more and still be able to fulfill Samsung's own demands and contracted demands for other manufacturers..... (Or other companies might finally bring more and more of their own technologies in OLED to the consumer masses)...
END OF RANTS...
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It's normal ever since the hd samoleds came out. Same problem across many manufacturers. My razr was horrible with this stuff.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

robstunner said:
It's normal ever since the hd samoleds came out. Same problem across many manufacturers. My razr was horrible with this stuff.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2
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Mine has the defect but I only see it when in a very dark environment and only on a certain black type of screen. Normally the black screen that shows up when starting a Netflix video I will see it for a moment. It doesn't bother me that much but do agree that it looks like s***! Other than the blotches in a dark environment though, you'd never see it.

I also noticed these spots too. I do not think it is a big deal foudn a few threads talking about other phones and most people agree it is common and only effects the screen when theres nothing moving on it. In other words yes you will notice it but no your screen is not damaged.

Grain Effect Visible at Steep Angles

Hey guys. Just wanted to ask a thing.
When I see my One V at steep angles (or even at certain angles), the screen appears grainy. I mean, it looks like cluttered pixels. The Grain effect on screen is only visible on white backgrounds with high brightness. Is this a defect ? I read somewhere that this Grainy screen is visible because of the Adhesive glue. Please let me know if you experience this. Thank you.

GamingFreak said:
Hey guys. Just wanted to ask a thing.
When I see my One V at steep angles (or even at certain angles), the screen appears grainy. I mean, it looks like cluttered pixels. The Grain effect on screen is only visible on white backgrounds with high brightness. Is this a defect ? I read somewhere that this Grainy screen is visible because of the Adhesive glue. Please let me know if you experience this. Thank you.
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Perhaps you could look at it normally? A phone isn't made to look at it from steep angles. And if it only appears on white backgrounds with high brightness, maybe use a different wallpaper and lower brightness (=better battery life). People want everything these days...

corneilli said:
Perhaps you could look at it normally? A phone isn't made to look at it from steep angles. And if it only appears on white backgrounds with high brightness, maybe use a different wallpaper and lower brightness (=better battery life). People want everything these days...
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I completely agree with you. The purpose was to just find out if this is a defect or not. Do you experience this or get this grainy effect ? (I'm just asking)

i think you should go for a replacment..i dont have any such problem..and no1 here has it...you're the 1st one to report such kind of issue

I've already had my One V's screen replaced.

replace again then i think you got old stock of the phone///
whts ur manufacturing date written on the box?

It's been around 6 months since I've got my One V. I don't think that HTC will replace it.
Manufacturing date - July 2012

Other users of One V. Please see if you all get this Grainy Effect. Or am I the only one.

lol..obvious it is there..i also got my phne in may nd it had yellow stuff on the bottom corner..i got it replaced within 2days...the phone i got had virbrator problems soo got tht 1 replaced too this is my 3rd one v working all fine

paarthdesai said:
lol..obvious it is there..i also got my phne in may nd it had yellow stuff on the bottom corner..i got it replaced within 2days...the phone i got had virbrator problems soo got tht 1 replaced too this is my 3rd one v working all fine
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Obviously . It is there ?
You mean even you have this grainy effect ?

I HAD !

OK, then Anyway, I don't have this issue at all, my screen is crispclear even at steep angles

(Q) Is display really as bad as people make it out to be?

Hello,
I'm very interested in buying an unlocked ZL, but the only thing that has me thinking twice is the display. Almost every review I've read mentions that the ZL has terrible viewing angles, and the contrast isn't very good.
I'm coming from a Nexus 4, and the viewing angles on it are great. The contrast isn't the best, but I'm not expecting AMOLED black levels here.
So, I just thought I'd check in here and hopefully get a response or two from people who actually own the phone. It's either this or Oppo Find 5, but this one will have tons more support. Thanks in advance!
Sent from my Wicked Fast Nexus 4

crazyjimbo said:
Hello,
I'm very interested in buying an unlocked ZL, but the only thing that has me thinking twice is the display. Almost every review I've read mentions that the ZL has terrible viewing angles, and the contrast isn't very good.
I'm coming from a Nexus 4, and the viewing angles on it are great. The contrast isn't the best, but I'm not expecting AMOLED black levels here.
So, I just thought I'd check in here and hopefully get a response or two from people who actually own the phone. It's either this or Oppo Find 5, but this one will have tons more support. Thanks in advance!
Sent from my Wicked Fast Nexus 4
Click to expand...
Click to collapse
Why dont you try going through a few threads here? You'll have your answer.
Short answer: Viewing angles worse than N4 even though overall screen quality is much better. If you have a habit of looking at your phones obliquely, dont buy the ZL.

I just went to a Sony store to check it out in person, I really think the display is not bad at all. you should definitely go to the store to see it on person, I am planning to get it once it will be on sale this coming week.
Sent from my Inspire 4G using xda app-developers app

I got my zl 6506 for three days now
my old one is sony lt29i first time compare to my lt29i
it looks not very bright not colorfully but after couple days
it looks not bad at all I don't know how to say it but for me
I can accept and very good device

I have had mine for 3 weeks and I think the screen is great. Viewing angles are not great, but in my daily use and in my personal opinion the screen looks great. I don't look at my screen from odd angles so it is never an issue for me. Webpages and YouTube videos look fantastic

ah_hin said:
I just went to a Sony store to check it out in person, I really think the display is not bad at all. you should definitely go to the store to see it on person, I am planning to get it once it will be on sale this coming week.
Sent from my Inspire 4G using xda app-developers app
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Click to collapse
It will be on sale? Where? The lowest price I've seen is about $577 on amazon.
Sent from my Nexus 7 using xda premium

Thanks everyone for the replies!
Sent from my Nexus 7 using xda premium

crazyjimbo said:
Is display really as bad as people make it out to be
...............................
Skip
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I personally look the device at local Market, some of Bad issue with the screen is or May be we can say Bad-luck of Sony is that the Software UI Background Color is Grey & its not in Black color, it's the main reason the screen is not looking good & everyone judge it as a washout screen,If we change the theme of Xperia Z the Screen looking Good at All.so I think its same for ZL too.
So viewing Angle are still not good as in IPS panel are, but remember the viewing angle issue is raised in just the Case of Xperia Z/ZL Cause Sony using the same TFT panel in all of their Smartphones & since than No one Complain or Raise even about A bit for the viewing angles,
Xperia T/TX are using same TFT screen Panel but no one said in their reviews that the Viewing angles are Bad & are Washout.But there is actually need to Point out the issue because poeple Spend A lot of their Hard erning Money & in result they don't Get the good thing.
In the Same sense with our TVs Picture Settings in Our Family member Set it to Vivid, some one came(suppose Papa) and set it too Standard & you like Soft or any of Factory settings given in Picture Mode of your TV.
so the point is that the Everyone have their own Preference for the Colors & look on something.
Although we all Admit that Sony should Put the IPS Panel screen in their High End Smartphone, there is no Lag or Cons in Xperia ZL either than of slightly viewing angle, Because in Some situations we must have need for Viewing Angles(not all the time), In that condition the screen Fade out is really a shame for the owner of device as well Sony too because we having a High end smartphone and the screen is Fading in some conditional bloody angles.
I'm saying again there is no any Smartphone which is Perfect in All of their Aspects.
Htc having Heavy software,as well the Htc oneX+ is A issue with its wifi by manufacture, Some People Blaming Sony for their Late Updated Schdule for Software, But remember & check the Htc is having same thing with Software updating schedule, and Samsung having their own bloatwares type software in their mobiles. The Clean and Best nearly Stock Android you Can found in Xperia Z/ZL Smartphone in Form of Jelly Bean (4.1.2).
Also the App "screen Calibration" is putted in Xperia ZL for screen Adjustment by user Preference.
Mostly the chance is that the Latest Software May set all of the issue Regarding our Concerns.
Go in your Nearly Store & check for yourself the screen how its looking to you, leave that how its looking to another person.
God Bless you

I've been using the C6506 since April 3rd and I can honestly say that I *really* love the display. Calibrating with the WB app really helped and everything looks really sharp. I couldn't care less about the viewing angles, because honestly, how many times do I really need to look at the phone off-angle? I moved from an iPhone 5 for this phone and it's far, far better.

[Q] ridiculous screen wake lag

This issue is present in both sony models (xperia Z & ZL). I put my ZL side by side with my old at&t branded DUAL CORE galaxy s3, a nexus 4 (same exact processor), an iphone 5, and an at&t branded htc one.... my brand new crazy expensive ZL takes WAY longer to wake up from sleep then ALL OF THEM. Every one of these phones had a BIG LEAD over my phone. How is there not a thread about this already? When I saw my old GS3 woke up way faster I was sad.... but when I saw how fast the htc one screen woke up I was straight up embarrassed. What are the odds this issue will be resolved? Developers on this forum are very capable and willing to work hard but to an extent. With so much stiff competition I have to ask how many developers will invest their time into even looking into this issue. I have tried every rom/kernel available to me at the moment to no avail. I have tried changing every setting and even eliminated the lock screen... no change. I tried raising the min. cpu speed... nothing.
To make matters worse every single one of the phones I compared my ZL to had better viewing angles and a brighter screen then the POS screen sony decided to cheap out on and stick in this phone. WHAT IS THE POINT OF HIGH PPI IF I CANT SEE ANYTHING ON THE SCREEN UNLESS I HAVE MY PROTRACTOR OUT TO MAKE SURE IM LOOKING AT THE EXACT RIGHT ANGLE. Sony should give you a free protractor key chain with the purchase of this phone I heard about this in reviews but never took it seriously because I didnt realize the extent of the issue. If I look at my phone just slightly off angle the colors are washed out and if its sitting on the table and im looking down on it from my desk the screen is 50% washed out and some colors are muted.
I hear the htc one x had the same wake lag issues and it was resolved via a software update. I wonder if we will be so lucky....
Anyone have any idea or solution to get rid of or at the very least lessen this extremely irritable wake lag?? Let me know !!

My phone doesn't have this issue, the wakeup time is almost immediate and is faster or on par with the phones you mention. This has been tested out of the box and rooted/unlocked bootloader/custom ROM. As far as the viewing angles go, why don't you visit one of e the 3095809385092385028365275829 threads already talking about this?

stygian16 said:
My phone doesn't have this issue, the wakeup time is almost immediate and is faster or on par with the phones you mention. This has been tested out of the box and rooted/unlocked bootloader/custom ROM. As far as the viewing angles go, why don't you visit one of e the 3095809385092385028365275829 threads already talking about this?
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REALLY? What model ZL are you using and what kernel and rom???? mine is the C6506 with an unlocked boot loader. Would it be possible for you to upload a comparison video with one of the aforementioned phones (or different ones of the same caliber) with a lock screen wake up test?? If you dont have a one to compare it to even a sample video of waking it up from deep sleep and also a regular wake up would be awesome. thanks in advance man I hope I can crack this problem

No such wake lag on my ZL (C6502) either. Stock rooted rom (.434) with locked BL. Screen wakes up almost instantaneously on mine (just like on my previous Xperia S). I did have a lag of about 2 sec while waking my Note2 (N7100) though. Didn't compare it to htc one or S4 but i'm sure it wouldn't be any laggier on my ZL (shall compare tomorrow when S4 arrives at stores locally here). Maybe you could upload a comparison video showing the said wake lag, if you can't then never mind. Btw, this issue seems specific to your device since nobody else here has any such complaints. So, try a factory reset, if already done then a repair using PCC/SUS. If all this doesn't work out then send it in for replacement under warranty!
About screen, I think ZL screen is stunning! It is very crisp & rather accurate to colours than say SAMOLED screens imo. I like it more than my previous Note2 screen, esp browsing webpages is like night n day! Text appears much crisper on ZL screen no matter how small it is! Viewing angles are never great on sony screens (but not too bad either), and I don't mind that, given the screen is second to none head on! If you judge the screen quality by the viewing angles (like bazillion reviewers out there) then i'm afraid Sony ZL is a wrong choice to begin with! Btw, I have no issues reading text, browsing web, viewing images/videos (with mBE2 on) with the ZL screen placed on table or bed beside me (from an angle of say 45 degrees to 135 degrees). There is a thread regarding it in the ZL general section too (many others in the XZ forums).
P.S: Having said that, I would love to see an ips panel on a sony smartphone!

you can close the thread I am the only one with the problem and IM returning this lemon I got to newegg for a full refund. I was trying to decide whether I wanted a refund or replacement and I put this thing next to my old dell streak that i bought for 220 bucks TWO YEARS AGO.... they both have 5 inch sceens... it was honestly pathetic. THE DISPLAYS LOOKED ALMOST THE SAME. No wonder the htc one threads in the xda forum have hundreds of thousand of views and the ZL doesnt have more then 10,000 in one thread. if your on the fence thinking about buying this phone... this is strictly my opinion but.... FOR THE LOVE OF GOD DONT DO IT. god bless newegg, they waived the restocking fee because my phone was defective and im getting a full refund. My ZL may have sucked but you guys were a big help. Thanks for your input dudes, I would not have known my ZL was defective if it wasnt for your posts.

Dpk1 said:
No such wake lag on my ZL (C6502) either. Stock rooted rom (.434) with locked BL. Screen wakes up almost instantaneously on mine (just like on my previous Xperia S). I did have a lag of about 2 sec while waking my Note2 (N7100) though. Didn't compare it to htc one or S4 but i'm sure it wouldn't be any laggier on my ZL (shall compare tomorrow when S4 arrives at stores locally here). Maybe you could upload a comparison video showing the said wake lag, if you can't then never mind. Btw, this issue seems specific to your device since nobody else here has any such complaints. So, try a factory reset, if already done then a repair using PCC/SUS. If all this doesn't work out then send it in for replacement under warranty!
About screen, I think ZL screen is stunning! It is very crisp & rather accurate to colours than say SAMOLED screens imo. I like it more than my previous Note2 screen, esp browsing webpages is like night n day! Text appears much crisper on ZL screen no matter how small it is! Viewing angles are never great on sony screens (but not too bad either), and I don't mind that, given the screen is second to none head on! If you judge the screen quality by the viewing angles (like bazillion reviewers out there) then i'm afraid Sony ZL is a wrong choice to begin with! Btw, I have no issues reading text, browsing web, viewing images/videos (with mBE2 on) with the ZL screen placed on table or bed beside me (from an angle of say 45 degrees to 135 degrees). There is a thread regarding it in the ZL general section too (many others in the XZ forums).
P.S: Having said that, I would love to see an ips panel on a sony smartphone!
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by the way.. I have been a sony fan my whole life and still am..... every tv i have ever purchased EVER was a sony. and they have all had good viewing angles ... and as far as cell phones go if you compare this cell phone to ANY OTHER ONE in its price range they ALL have great viewing angles. I laughed when I read that comment about sony and bad viewing angles because your screen is probably manufactured by sharp. hell it might as well say SHARP instead of sony on the phone.

raphtal said:
by the way.. I have been a sony fan my whole life and still am..... every tv i have ever purchased EVER was a sony. and they have all had good viewing angles ... and as far as cell phones go if you compare this cell phone to ANY OTHER ONE in its price range they ALL have great viewing angles. I laughed when I read that comment about sony and bad viewing angles because your screen is probably manufactured by sharp. hell it might as well say SHARP instead of sony on the phone.
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Sorry, but I didn't quite get what your post was about. Just for clarification when I said "sony screens" in my previous post, I was implying the displays on sony smartphones (which I thought was obvious as we are here at xda forums & not TV forums ). I am well aware that the Sony ZL has sharp display, and fyi the HTC One too has displays sourced from sharp/Samsung.
Well, I think I don't need to be a fan to appreciate a good screen! I appreciate your opinion & concern about bad viewing angles on ZL, but as I've said before it isn't an issue for me, so I hope you appreciate mine.
P.S. Btw, the other day I played with the GS4 and I still find the ZL screen better especially with regards to web browsing (better whites & crisper letters) & daylight legibility (better brightness perhaps). I still might end up buying it just for fun, or maybe NOT .

viewing angles n front cam

hey are the viewing angles of this phone that bad bcoz i m going to buy this phone,i m using xperia m and i dont notice the contrast problems in it so are they good in comparison to m?and is the front cam placement really that akward and does the position of front cam really matter?plz rly i want to buy this phone!!!

Well the viewing angles are not the best, that's true. But why would you ever look at your phone from a weird angle? I like the display and have no complains.
Regarding the front cam, I don't really use it and if I do then in landscape, then the camera is in a very good spot I'd say.

Unless your trying to watch videos with several other people, the viewing angles are fine. Honestly, I never use the front cam... I can see that if you were trying to actually use your screen right handed while using the phone, it might be an issue... dunno.
It's reasonably fast... it does heat up if you use a significant amount of cpu/gpu horsepower while playing games.
Some folks have had issues with premature battery failure/shutdown...
The screen isn't quite as vivid as an amoled screen (think Samsung s4).
The camera takes decent daytime shots, but kind of falls off for low light shots.
Which carrier are you planning to use it with?
Sent from my C6506 using Tapatalk

I m frm india n in india we dont get carrier phones nyways thanks
Sent from my GT-I9100 using xda app-developers app

scifan said:
Unless your trying to watch videos with several other people, the viewing angles are fine. Honestly, I never use the front cam... I can see that if you were trying to actually use your screen right handed while using the phone, it might be an issue... dunno.
It's reasonably fast... it does heat up if you use a significant amount of cpu/gpu horsepower while playing games.
Some folks have had issues with premature battery failure/shutdown...
The screen isn't quite as vivid as an amoled screen (think Samsung s4).
The camera takes decent daytime shots, but kind of falls off for low light shots.
Which carrier are you planning to use it with?
Sent from my C6506 using Tapatalk
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it isnt that vivid as s4 but is the screen disappointing?how is colur reproduction?

einfachgaer said:
Well the viewing angles are not the best, that's true. But why would you ever look at your phone from a weird angle? I like the display and have no complains.
Regarding the front cam, I don't really use it and if I do then in landscape, then the camera is in a very good spot I'd say.
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i m used to an xperia m n i dont really notice the viewing angles....r viewing angles of zl btr than of m?is the screen bright n vivid?is colour reproduction good?and is the glass protection as tough as gorrila glass?

bhavstech said:
it isnt that vivid as s4 but is the screen disappointing?how is colur reproduction?
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Color reproduction seems decent... It's kind of like comparing a Plasma to an LED backlit LCD display... I think you get deeper blacks with AMOLED vs what I'd classify as more of a dark grey/light black on this...
Color's look great when you have contrast and brightness turned up.
I came from a Samsung Galaxy S3 (which my wife now uses)... This is faster... the display looks pretty good... it's really sharp... it's a pretty impressive screen and if I hadn't ever had an AMOLED screen on my Galaxy S3, I'd have thought this was exceptionally awesome... it's pretty good. I should re-lock my boot loader and see if the bravia engine really does make things look better again...

U mean colour reproduction is good even without bravia engine?!
Sent from my GT-I9100 using xda app-developers app

bhavstech said:
U mean colour reproduction is good even without bravia engine?!
Sent from my GT-I9100 using xda app-developers app
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Colour reproduction is better with bravia engine set to off, bravia engine makes colours too vivid, you get more natural colours w/o bravia engine

The zl does not have a good viewing angle. But I used mine spot on. So no qualms about it. I bought it because of its compactness.
Anyway, I bought an Xperia C today, for my father. And guess what? Xperia C has better viewing angles.
I tested it. Auto brightness off, maximum brightness.
I'm wondering why the low priced Xperia C has a better viewing angle than the premium ZL.