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So I picked up a T-Mobile Galaxy S II today. Wife has the Sprint version of this phone. They both have the same size display. Same resolution. Same display technology (Super Amoled Plus). So they should look about the same. Right?
Unfortunately for us, they do not. The Sprint version has a much better display. The contrast and the colors are simply better there. The text is easier to read.
See the attached comparison shots. T-Mobile phone is on the left in both shots. I turned brightness of the display all the way down on both phones. In the first shot, both phones are displaying blobs.jpg, posted elsewhere in this forum. The T-Mobile phone shows ugly bright lines and dots. And the Sprint phone shows a black screen. Exactly what I see on my PC.
The second picture shows the washed out colors of the T-Mobile screen compared to the Sprint phone.
I am quite disturbed by this discovery. I cannot explain the discrepancy. Can anybody?
I am also of the opinion that every T-Mobile S II user suffers from this defect. Some people simply do not notice it. They would have to put their phone against a Sprint unit to see the difference.
detour http://forum.xda-developers.com/showthread.php?t=1300133
SO ive figured this out a while back but never got the chance to post it.
If you put our note 2 beside a different galaxy series phone(anything older than s3) you'll notice that they display a darker black in a completely black environment, but our phone also has significant to no mura present.
This lead me to thinking, why wont our phone display black? It took a while but i realized that it isnt the oleds that are defective, but rather the TFT behind them cannot be 100% pure(meaning, it cannot be 100% of a certain material) and for that reason some of it could not operate under a certain voltage.
So how is samsung fixing this? Well, they make it so that in the darkest environments, the oleds always get a certain voltage, which results in black not being 100% black(still better than lcds, but we no longer get "infinite contrast"
just putting this out there, if anyone was ever curious.
Hmm very interesting indeed. I thought Note 2 had a different kind of Screen technology out of the whole galaxy series? Would that be a reason as well?
G1Master said:
Hmm very interesting indeed. I thought Note 2 had a different kind of Screen technology out of the whole galaxy series? Would that be a reason as well?
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well, the note 2 uses a new kind of pixel arrangement, so it is full RGB like the phones before nexus/s2, but that doesnt really have much to do with this...it's still based off TFT
Similarly explained in the following thread from last week,
http://forum.xda-developers.com/showthread.php?p=36908128
The AMOLED Displays use an "Active-Matrix" compared to standard OLED's in today's flag ship televisions which do not have an Active Matrix.
In AMOLED, as a result of continuous low voltage that is being fed into OLED via the TFT even in the lowest brightness, the blacks won't be necessarily black.
Every Note 2 has the Mura Effect like in previous Galaxy Devices. However, the manufacturing process has slightly improved, but not to the extent we all would like it to be.
Unfortunately, I don't consider our displays to feature local dimming, because individual pixels do not actually turn off. Blacks are not blacks, as a result of the varying voltage.
Although there are improvements to the AMOLED display as explained here,
http://www.ignisinnovation.com/technology/ignis-technology-overview/ignis-admo-p-technology
Unfortunately, even though the solution provided in the above link by ignisinnovation has been in the market for a couple of years already, Samsung does not employ these kind of standards, therefore every AMOLED display has the Mura effect but in varying degrees such as in the form of stains, lines, blobs, dots, and splothces. This can also affect the display output when it comes to uniformity because the TFT is solely responsible for the luminescence of individual sub-pixels on the OLED film.
The AMOLED displays are improved with compensation.
http://www.youtube.com/watch?v=ctA114zaY98
When I say manufacturing has gotten better, I meant that Samsung's method of making slightly better AMOLED displays has been accomplished by changing the voltage and better quality control handling.
The material has been slightly improved; the material used on today's AMOLED displays is purer than let's say the material that was used on the S2 and Note 1.
Let's hope that future AMOLED displays by Samsung will be free of Mura and other Quality Defects.
winlinmac001 said:
Similarly explained in the following thread from last week,
http://forum.xda-developers.com/showthread.php?p=36908128
The AMOLED Displays use an "Active-Matrix" compared to standard OLED's in today's flag ship televisions which do not have an Active Matrix.
In AMOLED, as a result of continuous low voltage that is being fed into OLED via the TFT even in the lowest brightness, the blacks won't be necessarily black.
Every Note 2 has the Mura Effect like in previous Galaxy Devices. However, the manufacturing process has slightly improved, but not to the extent we all would like it to be.
Unfortunately, I don't consider our displays to feature local dimming, because individual pixels do not actually turn off. Blacks are not blacks, as a result of the varying voltage.
Although there are improvements to the AMOLED display as explained here,
http://www.ignisinnovation.com/technology/ignis-technology-overview/ignis-admo-p-technology
Unfortunately, even though the solution provided in the above link by ignisinnovation has been in the market for a couple of years already, Samsung does not employ these kind of standards, therefore every AMOLED display has the Mura effect but in varying degrees such as in the form of stains, lines, blobs, dots, and splothces. This can also affect the display output when it comes to uniformity because the TFT is solely responsible for the luminescence of individual sub-pixels on the OLED film.
You can also refer to this, http://www.freepatentsonline.com/y2010/0277400.html
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its not the manufacturing process that improved
thing is, when the material sint pure enough, some parts of the thin film transistor will not be able to transmit enough power, while others can
this results in some oled getting enough voltage to display say..gray while others display complete black
what happens is that sammy upped the voltages, so the black is now an uniform gray
edit: btw..there is no correction of aging for oled display
only compensation..and tbh witht he direction oleds are going its really not necessary...in the next 10years we should be able to print it off our printer..so it'll be pretty disposable
Quality has improved though.
Right, there is only compensation, slipped my mind, with the same article I posted above, the AMOLED displays are improved with compensation.
http://www.youtube.com/watch?v=ctA114zaY98
When I mentioned manufacturing, I meant that Samsung's method of making slightly better AMOLED displays has been accomplished by changing the voltage and better quality control handling.
The material has been slightly improved; the material used on today's AMOLED displays is purer than let's say the material that was used on the S2 and Note 1.
AznDud333 said:
its not the manufacturing process that improved
thing is, when the material sint pure enough, some parts of the thin film transistor will not be able to transmit enough power, while others can
this results in some oled getting enough voltage to display say..gray while others display complete black
what happens is that sammy upped the voltages, so the black is now an uniform gray
edit: btw..there is no correction of aging for oled display
only compensation..and tbh witht he direction oleds are going its really not necessary...in the next 10years we should be able to print it off our printer..so it'll be pretty disposable
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---------- Post added at 07:20 AM ---------- Previous post was at 07:10 AM ----------
Compesation for a Relaxed Area,
http://www.youtube.com/watch?v=tFgo6CIZgmo
What are the odds of buying a Note 4 without Display Tint? I've already gone through four Note 4; and its been over half a month and still couldn't even settle in with the Note 4. Is there something wrong with Samsung's Quality Control? Should I just buy the Verizon Note 4 Developers Edition and forget AT&T and T-Mobile?
Probably extremely low in all likely hood. The fact that you've "won" 4 of them that have this defect might be pointing towards something else.
I have a hard time believing a multi-billion dollar electronics company like Samsung are making a large percentage of defected $900 flag ship devices.
arjun90 said:
What are the odds of buying a Note 4 without Display Tint? I've already gone through four Note 4; and its been over half a month and still couldn't even settle in with the Note 4. Is there something wrong with Samsung's Quality Control? Should I just buy the Verizon Note 4 Developers Edition and forget AT&T and T-Mobile?
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Click to collapse
What's the display tint exactly?
Yea can you screen shot the tint in question,would like to compare my phone, I dont see anything this is the absolute best display ive had on a phone ever,from s3,s4 went threw 3 of them cat spilled water in one ,and wife had one,s5 and now note 4 never had an issue with any of them,ive read some posts on here about a redish tint,is that what your referring to,not saying I don't believe you just curious to see if maybe I'm missing something,but maybe its a bad idea to look for problems i haven't seen on my phone ,then I'll be parinoid I got a bad one lol.
I did have some blurring on all black screen with setting when I would scroll fast on my s4 I thibk, but that was fixed on a firmware update or one of the custom Roms I was running
I don't seem to have an issue on mine and a few of my friends and family members that have the phone don't seem to have the tint either. It's probably just bad luck on your end.
The AMOLED production issues have been plaguing the Galaxy series since its original iteration back in 2010. I don't like to keep my display at full brightness due to possible burn in, and rapid degradation of life of the display. At low brightness, the colors appear washed out. Some areas of the screen (so far based on my experience on the four Note 4's I had to go through: top 1/3, bottom-right 1/3, bottom-left 1/3, top-right 1/3), have a purplish-pink tint (hue, whatever you want to call it), produce the tint, and is very obvious to the naked eye in low brightness. It really is hard to look away because most of the interface is overlayered in white (Menu Options, Dialer, Browser, and so on). Dial *#0*# --> Receiver, the tint is not so obvious (due to the automatic max brightness) unless you move the device farther from your eyes and see from a distance, the uniformity issue is obvious. If you use Screen Test (App available in the Play Store), and keep the display brightness low in the notification center (Turn Automatic Brightness off, and Screen Mode back to Default), the issue is very prominent. Now I'm not saying this is present in all devices. I've seen Note 4's without this issue, making be believe this might be batch-related and could be linked to the AMOLED manufacturing process (which has improved over the years I must say).
If you've been through 4 without being satisfied, I would have to say tha the odds are 0 that you'll find one that does. Personally, I think you should move on to another phone.
I call bs on going through 4 as ATT policy is one replacement or exchange during the grace period after that it is the manufacturers problem unless you purchased ATT warranty.
Regardless, gpo is right. If he really went through 4 and wasn't satisfied, then he should move on to a different phone.
The odds of him finding one that he is satisfied with after seeing 4 are extremely slim.
If you have gone through 4 of them and all show the same issue (to you) chances are none to none that you'll find one to your liking.
I personally think what we have here is a PREFERENCE, not a defect. As you pointed out, you have taken issue with Samsung AMOLED displays since their inception.
If you have gone through all of the settings adjustments that can be made to customize the display and you are still not satisfied, move on...
Shame though as I personally feel this is the best screen they have put out yet!
Did some comparisons between the Moto G5 plus and my old ASUS Zenfone 2. As soon as I started using it the colors seemed off, everything had this weird olive greenish hue and It didn't make any sense because launcher/homes seemed fine. But I'd browse a website, play pokemon go, or look at instagram and things were just washed out and dull while at the same time parts looked fine.
Finally found a test that explains what I was seeing and it's not good news. I was running the latest firmware with the volte fix. The app i used is called "DIsplay Tester" by "Brainntrapp" and open the test was "Banding, Contrast, Saturation" test. There are so many colors just missing on the G5 Plus the gradient looks horrible. The banding you see on the G5 plus was not visible in real life but the missing colors and hardness of the gradient was. Photos were taken with a Nikon D90 and Tamron 17-50 2.8.
The screen was driving me nuts so I didn't mess around with getting a replacement or sending to Moto to fix because I couldn't live with it if it didn't get resolved. I'll just have to keep looking/waiting for a replacement to my old zenfone.
Figured if any of you were having issues you could see if yours is similar, also curious to hear if you're _not_ having this issue as well which means it may make sense to buy once production issues are fixed.
I can't really tell any difference between Vibrant and Standard, but don't see any banding as in yours and think they look pretty decent imo.
The screen is on the less vibrant side than some others, but colors appear very accurate/realistic and the sharpness of detail is very good. My Moto X Pure screen is 1440p with more color depth but it has a yellowish tint to the whites in comparison. Coming from the Pure at first I thought the G5+ screen was going to be too bland, but after using it awhile I like its softer look which seems easier on the old eyes while still being very viewable.
I agree there's a really minimal difference between vibrant and standard. However, you took screenshots which will not show any issues as the actual data being sent is correct so we can't know if your screen does or doesn't have this issue. I had to take a picture of the screen with my DSLR and included my ASUS for comparison as a way to demonstrate the issue.
In the pictures I took, the hard breaks you see between the colors in the G5 are supposed to be smooth gradients and there is a ton of blue missing from the panel as well. This isn't just an issue of the screen being generally desaturated this is an uneven distribution of missing/desaturated colors. If it doesn't bother you that's certainly fine but it's very much an issue with the screen that should be addressed as it means that it is incapable of accurately reproducing colors even if the reproduction is pleasing to some. The banding I'm referring to is in the green section on my pictures and was not visible in real life and some form of artifact from taking the photo.
Sorry, I misread and thought you were referring to the banding as the main issue. I do see the more distinct color separation or breaks when looking at it directly in the app in either color mode. Just ran Display Tester on my Moto X Pure which shows the much more gradual blending (like on your ASUS) when looking at both phones side by side, although it should costing $150 more.
So it does indicate the G5+ lacks in color depth, something I noticed right away but which hasn't seemed like a minus after using it. The sharpness and wide viewing angles still seem like good quality, perhaps because it's IPS. But now I'm wondering if the KCAL features included in the latest extended stock kernel might help adjust things to look better.
Dahenjo said:
The sharpness and wide viewing angles still seem like good quality, perhaps because it's IPS. But now I'm wondering if the KCAL features included in the latest extended stock kernel might help adjust things to look better.
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That's part of why this confuses me so much. The sharpness and viewing angles are amazing for an IPS panel I'm not sure if IPS has anything to do with the colors (the ASUS is also IPS). I'd be very curious if KCAL helps as it seems like it should be able to, it could also be as simple as a bad color mode on the panel driver? I'd love to see a comparison from a custom rom to stock. I'm very split on thinking it's a software issue or it's a hardware issue. I don't have enough knowledge or experience to really do anything useful, but I'm hoping that providing the info gives others an ability/info to understand and look into it.
KCAL greatly improves the 'banding, contrast, saturation' result in Display Tester, which now looks as good as your ASUS or my MXPE once I found a good range of settings. Even on KCAL's initial settings the color gradients looked drastically better, so whatever was causing the lousy color depth definitely seems to be corrected by it as the screen looks excellent now.
I'm running on stock using the extended kernel btw. Maybe someone using a custom ROM can post on whether the colors are noticeably better than on stock and also test it in DT for comparison. Seems it'd be more of a driver or configuration error or bug than something hardware related, so maybe Lenovorola will be able to fix it with an update.
Dahenjo said:
KCAL greatly improves the 'banding, contrast, saturation' result in Display Tester, which now looks as good as your ASUS or my MXPE once I found a good range of settings. .
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Please share your current Kcal config .
How can I activate srgb mode on Moto G5 Plus
kaushal4595 said:
How can I activate srgb mode on Moto G5 Plus
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What we have to help with the washed-out screen is KCAL support available in both custom kernels (ElementalX and Extended Stock) on this forum. After installing either kernel you'll need to use either EX Kernel Manager app or Kernel Adiutor app (both at Playstore) to access the color control settings. I also found the Display Tester app mentioned above useful for checking how the settings I made looked. My screen looks terrific now.
I found that setting Saturation to 45 brings the best improvement, while setting Value to 135 brings another slight improvement.
sticktornado said:
I found that setting Saturation to 45 brings the best improvement, while setting Value to 135 brings another slight improvement.
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That's indeed a very good setting. Thanks!
Saturation 50
Value 115
Contrast 140
Is what I've been using lately
sticktornado said:
I found that setting Saturation to 45 brings the best improvement, while setting Value to 135 brings another slight improvement.
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I tried that and looks pretty good. Going to tweak contrast and see too. We should start a thread sharing tweaks
There is no way to fix this without root or Custom Kernel?
So if I'm getting it right I have to run kcal v1.2 on my moto g5 plus and from there I have access to color controls, is that correct?
Unfortunately, I have this same issue, although I didn't realize it, because my wife used the phone on the wifi to talk on Facebook so I ran out of time to return it.
What makes it worse is that it's the amazon-ads version so I can't even root it.
I put this phone right next to 3 other phones (with all LCD screens to be fair) and the difference is kinda shocking. The G5plus looks like it's been bleached, all the colors are faded, like I pulled some sliders to make it less vibrant and more black/white.
My wife didn't notice it, since she was using a basic phone until she got herself a new phone and told me, that "how come this looks more colorful?" That's when I took a better look at the G5plus.
After using it as my daily driver for a week, this phone got some serious color issues. Interestingly the pictures I took looked awful on this phone, but when I looked at the same pics (uploaded to google photos) on my PC, they look ok, not missing any colors.
Another issue I noticed. I turned off auto screen brightness OFF, because it just doesn't work.
I walk out to sunshine and the screen won't brighten and when I walked inside it won't darken so I ended up manually changing the brightness.
Here is the interesting (or rather annoying) part: When I turn the brightness up, it seems like it makes the whites more glowing, while the dark /black (let's say a shadow of a tree) just either stays too dark or turns more grey, instead of brighter. It's like the brightness control is controlling the exposure and contrast only.
Despite I see youtube videos talking about its 4K video capability, I think this phone makes terrible videos, especially how the camera applies too much contrasts and the HDR doesn't help it.
I also believe, that it's not all and every single device have this problem, because I'm sure I'd seen more complaints. It's just horrible quality control, and that's Lenovo for you.
I tried color tuning apps, but nothing seem to work. It probably requires a root but since it's an Amazon phone, it won't help it. So the phone works great as a phone, it just have an awful screen and a mediocre camera
This phone may have been enough in 2016 and 17 with these weaknesses as a budget, but seeing all the new budget Chinese phones coming out this year, I would not recommend this phone unless you can pick it up for $100 or less.
This phone is going into my drawer as soon as my new LG G6 arrives and the G5plus will be only used as a backup phone. There is no way I would keep using this as a daily driver unless I have no other choice.
Hey guys, just bought a used 2XL off eBay. Everything seems as advertised but I had a couple questions. I'm coming from using an LG G7
1) the screen is a bit warm in hue, is this something normal after presumably 1 year of use?
2) does the Cam have the same features as on the 3 or is there a port I should download?
3) I haven't put my SIM into this. Any call issues or people? (I'm on Freedom in Canada and the phone was purchased from a seller in Canada)
4) anything else you might recommend or that I should be aware of coming from another Android phone?
Thanks for any replies!
Cheers
Not an owner yet, but I can say most phones screens can get warm because of the processor/battery at times. I would not worry about that. Also, you can check Kimovil or willmyphonework to see if it'll get full band support for Freedom. The only thing to be weary of from what I hear is the OLED burn in, which is a danger with any oled phone if you are careless
Are you comfortable with rooting your phone? If so you can put a custom kernel on the device and use a KCAL profile to cool the screens colors, that's what I do.
Sent from my Pixel 2 XL using XDA Labs
@Koray_: Wrong definition of "warm". In this case the OP is asking whether the overall color of the screen is reddish (warm) or bluish (cold).
@VCan25:
P2XL screens seem to vary greatly. After 1 year of use however this might be normal. The blue OLEDs fade more quickly than the red or green.
Top Shot is not available for the P2XL. TBH I haven't checked to see if the camera app ports have it, but Top Shot supposedly requires an AI upgrade that the P2XL doesn't have.
No call issues I am aware of.
The blue shift phenomenon widely reported on these devices is overblown. All OLED screens have blue shift to varying degrees. The screen itself on a new device is set with a color palette closer to the real world. This can be changed in the device settings to give the color palette a bit more punch, or you can set it so it looks a lot like a Samsung display. I personally use the natural color palette, the lowest setting. But people's tastes vary which is why Google added the settings in an early update to the firmware.
Strephon Alkhalikoi said:
@Koray_: Wrong definition of "warm". In this case the OP is asking whether the overall color of the screen is reddish (warm) or bluish (cold).
@VCan25:
P2XL screens seem to vary greatly. After 1 year of use however this might be normal. The blue OLEDs fade more quickly than the red or green.
Top Shot is not available for the P2XL. TBH I haven't checked to see if the camera app ports have it, but Top Shot supposedly requires an AI upgrade that the P2XL doesn't have.
No call issues I am aware of.
The blue shift phenomenon widely reported on these devices is overblown. All OLED screens have blue shift to varying degrees. The screen itself on a new device is set with a color palette closer to the real world. This can be changed in the device settings to give the color palette a bit more punch, or you can set it so it looks a lot like a Samsung display. I personally use the natural color palette, the lowest setting. But people's tastes vary which is why Google added the settings in an early update to the firmware.
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Thanks for the detailed response! Been using it on and off for the day and it seems to verify your points. Actually I had tried a Pixel 3 before but call quality was terrible. Dropped calls and receivers couldn't hear me but had no issue today on the 2XL so that was a relief. I found the palette options and I guess it was set to a more saturated level which I didn't like but on natural it seems much better. And I was looking for Top Shot and Super Res Zoom, so I'll check out the ports to see what developers have been able to cook up. Photos have been great so far and I can see why people love the camera. The LG G7 was so saturated it lacked details on zooming in.