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Are your Note Pro's yellows green? Is mine defective?

Hi all,
I've been an original Note 10.1 user for 18 months an upgrade to a Note Pro on a great deal. It arrived this morning and at first everything was wonderful, but the moment I fired up Sketchbook Pro, the yellows looked dull and greenish. A large stroke of pure yellow painted some seemingly olive green colour. It's not really suitable for art. Video and photo's tend to look okay though (possibly even better colour balanced that other devices I have), so it's hard to pin down. It also happens in other applications - the colour picker in SNote has a really sad, depressed yellow. I've taken a few photos alongside other displays but depressingly they capture a pure yellow which is very odd.
Googling around, the Lenovo Yoga 2 uses the same screen and has users grumbling about the yellows, and a BIOS update has improved things but not fixed them, suggesting the RGBW Pentile display is just incapable of accurately displaying true yellows. If that's the case though, why wasn't this brought up in the many glowing reviews of the Note Pro?
The best way to ascertain whether mine's a defective/improperly calibrated unit or not seems to be to ask other owners, hence my enrolling here. If you paint some pure yellow in Sketchbook Pro, does it look yellow? Does it pop like a ripe lemon or banana, or look somewhat sickly and off? Is the Note Pro just incapable of rendering such colours?
As an aside, why aren't colour calibration options included on devices like they are on TVs?? Seems an easy way to allow users to tailor their colour preferences. Edit: Huh. Samsung does provide Screen Modes for their tablets, just not those from Hong Kong!

Turns out the Hong Kong model doesn't have Screen Mode settings according to the manual. US and EU does, but not Hong Kong. Why?! So I'm guessing that this model is limited to 'movie mode' colours or something. If you vote above, please mention which region your Note Pro is from (and better yet, if changing the Screen Mode changes the colour rendering).

Have you found out anything else? I've the same problem (I've already voted).
I'm questioning myself if I should send it for RMA or not, since I live in Argentina.

Hey guys. I noticed that whenever I pull down my notification / settings bar the yellows displayed on background stuff looks normal. This is kind of an annoying find, as it shows that the note pro is capable of correct colors

Display manufacturer

Hi again.
This time I'll touch into a very frustrating matter for the new users of poco f1. because of how the hardware test app on the new miui versions don't show the manufacturer of the lcd panel.
From what I've asked my friends it seems that the global versions ship with low quality displays such as ebbg panels and the models which got launched at first have the better tianma panels.
Its been like this for 3 of my friends 2 of them had the tianma panel because they were using the initial models and one of them had the global version.
So if you were thinking of overclocking your lcd you should choose the 65 hz option if you have the global version because ebbg panels and others are not that good in terms of quality.
To be honest ive tried the 65hz even then it had some weird glitch artifacts on the screen so i would advise you to stay at 60hz.
And if you are using the global version you should stay updated in terms of touch drivers and if you are not using the global try to use the old drivers.
Hope this helped you.

MechaNarutoSucks said:
Hi again.
This time I'll touch into a very frustrating matter for the new users of poco f1. because of how the hardware test app on the new miui versions don't show the manufacturer of the lcd panel.
From what I've asked my friends it seems that the global versions ship with low quality displays such as ebbg panels and the models which got launched at first have the better tianma panels.
Its been like this for 3 of my friends 2 of them had the tianma panel because they were using the initial models and one of them had the global version.
So if you were thinking of overclocking your lcd you should choose the 65 hz option if you have the global version because ebbg panels and others are not that good in terms of quality.
To be honest ive tried the 65hz even then it had some weird glitch artifacts on the screen so i would advise you to stay at 60hz.
And if you are using the global version you should stay updated in terms of touch drivers and if you are not using the global try to use the old drivers.
Hope this helped you.
Click to expand...
Click to collapse
I have NVT screen and i never had problems even with 70hz, batch from 11
Also never use old driver cuz that's ruining your screen

my pocophone F1 Global is a 2018/10 Lot and use Tienma fhd nt36672a display... never heard of other display type...

Pocophones have been supplied with 3 LCD panels - EBBG, BOE and Tianma.
From what I've gathered so far- Tianma are superior since these are most likely LTPS IPS panels, while BOE/EBBG are regular IPS panels. Meaning - Tianma panels are consuming much less energy.
This is why some of the Pocophone users can easily surpass even 16 hours of SOT (without gaming, just watching youtube, movies, listening to the music, etc. with Wifi AND LTE data always enabled) while others can't get even past 8-12 hours (BOE/EBBG panels) in pretty much the same use-case scenarios.
You can find some Pocophone panel comparisons on youtube. In these videos EBBG has a yellowish tint (whites are yellow/brownish) and is overall darker, while BOE and Tianma are much brighter and also have much better color reproduction. Also - on these videos Tianma panels have no issues when it comes to touch detection on the edges, while BOE have some issues near top/bottom of the screen.
That's also why you can find conflicting opinions when it comes to the screen of Pocophone, in different reviews that are available on the internet. Some of them say that the screen of the Pocophone is mediocre at best, while other say that it's very good in its class, for the price. There are also different numbers when it comes to the measured brightness.
These reviewers got different Pocophones with different panels.
By going through the kernel notes of different custom kernels on XDA forums you can gather that Tianma screens can be overclocked up to 70 Hz, while BOE/EBBG are more limited (up to 65 Hz).
You've said that Tianma panels have been supplied initially and are not being supplied anymore. I can't confirm that information. My Pocophone (with Tianma panel) was manufactured in 2018-10. You can find the date at the bottom right side of the sticker which is located at the back of the original phone box.
When it comes to checking the panel model - you should be able to do that by going into: Settings->About phone->Full specification. Then touch the "kernel version" several times.. It should get you into the diagnostic mode.
There you should be able to pick the first available option - "Check version info". Next - just scroll down at the bottom and there you will find "LCM Information", in my case it says: "dsi tianma fhd nt36672a video display"

Just to add more recent infos My poco 6/128 Global Version manufactured 01/2019 have Tianma panel, perfect backlight but I can say sometimes fails when trying to type fast, it's not a problem with edges but seems more a problem with touch input recognition that is not uniform among the panel

deathnoise said:
Pocophones have been supplied with 3 LCD panels - EBBG, BOE and Tianma.
From what I've gathered so far- Tianma are superior since these are most likely LTPS IPS panels, while BOE/EBBG are regular IPS panels. Meaning - Tianma panels are consuming much less energy.
This is why, most likely, some of the Pocophone users can easily surpass even 16 hours of SOT (without gaming, just watching youtube, movies, listening to the music, etc. with Wifi AND LTE data always enabled) while others can't get even past 8-12 hours (BOE/EBBG panels) in pretty much the same use-case scenarios.
You can find some Pocophone panel comparisons on youtube. In these videos EBBG has a yellowish tint (whites are yellow/brownish) and is overall darker, while BOE and Tianma are much brighter and also have much better color reproduction. Also - on these videos Tianma panels have no issues when it comes to touch detection on the edges, while BOE have some issues near top/bottom of the screen.
That's also why you can find conflicting opinions when it comes to the screen of Pocophone, in different reviews that are available on the internet. Some of them say that the screen of the Pocophone is mediocre at best, while other say that it's very good in its class, for the price. There are also different numbers when it comes to the measured brightness.
These reviewers got different Pocophones with different panels.
By going through the kernel notes of different custom kernels on XDA forums you can gather that Tianma screens can be overclocked up to 70 Hz, while BOE/EBBG are more limited (up to 65 Hz).
You've said that Tianma panels have been supplied initially and are not being supplied anymore. I can't confirm that information. My Pocophone (with Tianma panel) was manufactured in 2018-10. You can find the date at the bottom right side of the sticker which is located at the back of the original phone box.
When it comes to checking the panel model - you should be able to do that by going into: Settings->About phone->Full specification. Then touch the "kernel version" several times.. It should get you into the diagnostic mode.
There you should be able to pick the first available option - "Check version info". Next - just scroll down at the bottom and there you will find "LCM Information", in my case it says: "dsi tianma fhd nt36672a video display"
Click to expand...
Click to collapse
In the new versions of the miui the option to see it is gone the only way to figure it out is by using root
And when it comes to your answer I've never said anything like
" this is the truth "
So this is just a conclusion I've came up with to help others who insist on not rooting.
From the results of my investigation this was the conclusion I've ended up with.
And if you've read it carefully you can see that i've said that me and my friends all had the global version. So this is just a conclusion based on me and my friend's experience.
Edit: mine was manufactured in 2019.01 just you let you know.

MechaNarutoSucks said:
In the new versions of the miui the option to see it is gone the only way to figure it out is by using root
And when it comes to your answer I've never said anything like
" this is the truth "
So this is just a conclusion I've came up with to help others who insist on not rooting.
From results of my investigation this was the conclusion I've ended up with.
And if you've read it carefully you can see that i've said that me and my friends all had the global version. So this is just a conclusion based on me and my friend's experience.
Edit: mine was manufactured in 2019.01 just you let you know.
Click to expand...
Click to collapse
So you have 2019.01 and have problems? What screen you have? I have 2018.11 and never had problems even with 70hz

MechaNarutoSucks said:
And when it comes to your answer I've never said anything like
" this is the truth "
So this is just a conclusion I've came up with to help others who insist on not rooting.
Click to expand...
Click to collapse
I haven't said that you did. Just that I can't confirm that Tianma panels have been used only initially (Tianma panels are also being used in the new Redmi Note 7) .
And I agree - it's good to exchange the information, by having more of these comments coming from different Pocophone users, we can get a better view on how Xiaomi is operating when it comes to using very different phone components in the same phone model.
I'm not trying to discourage that, it's just the opposite.
The other phones, like Xiaomi Redmi 6 are also using different panels from EBBG, BOE and Tianma.
Edit: mine was manufactured in 2019.01 just you let you know.
Click to expand...
Click to collapse
You can also try to enter: *#*#64663#*#* using your dial pad. It should bring up the same QC test menu. Check it out.

Use Device HW info app to check the panel manufacturer..

deathnoise said:
*snip*
Click to expand...
Click to collapse
Nice write-up, all good to know - surprised that nobody else has liked the post. I checked and found I have a Tianma display so yay (imported mine on launch day, dunno about manufacture date).
Also concretely puts to rest the "But I don't have touch problems in PUBG so it's not a design flaw but might be software issue" arguments.

How u change hz of display?

niteone said:
How u change hz of display?
Click to expand...
Click to collapse
You need to flash one of the custom kernels

deathnoise said:
I haven't said that you did. Just that I can't confirm that Tianma panels have been used only initially (Tianma panels are also being used in the new Redmi Note 7) .
And I agree - it's good to exchange the information, by having more of these comments coming from different Pocophone users, we can get a better view on how Xiaomi is operating when it comes to using very different phone components in the same phone model.
I'm not trying to discourage that, it's just the opposite.
The other phones, like Xiaomi Redmi 6 are also using different panels from EBBG, BOE and Tianma.
You can also try to enter: *#*#64663#*#* using your dial pad. It should bring up the same QC test menu. Check it out.
Click to expand...
Click to collapse
Like i said in the new versions of the miui specifically beta versions the qc test menu doesn't show the display info like i said I've rooted my device and loaded pe for my taste and have a custom kernel I've just wanted to give my opinions on it for the users who want their devices to stay unrooted like you said. And I've said it before but I'll say it again i have the ebbg panel it's not like I'm not satisfied. For the price I'm more than satisfied with the poco.

mastermoon said:
Use Device HW info app to check the panel manufacturer..
Click to expand...
Click to collapse
For the unrooted users the app doesn't show the panel info.

CosmicDan said:
Nice write-up, all good to know - surprised that nobody else has liked the post. I checked and found I have a Tianma display so yay (imported mine on launch day, dunno about manufacture date).
Also concretely puts to rest the "But I don't have touch problems in PUBG so it's not a design flaw but might be software issue" arguments.
Click to expand...
Click to collapse
Like you said the touch problems are software related some users reported that the new versions of the miui/firmware with the new touch drivers had problems such as touch lag multi touch not working and recent reports from the users are good poco team has kept their promise and fixed the issues so it should be okay for the users to flash the new firmware/miui updates without worrying.
And from what you are saying my conclusion got stronger the ones from launch mostly have the tianma panels and I'm gonna say it again this is not going to be true for every launch manufactured poco but if you are frustrated you can probably rest relieved because most likely you have one of the best panels poco f1 has shipped with.
@CosmicDan And thx for the reply I'm happy that users got what they wanted.
Edit: New reports from my friends show that the newly manufactured ones mostly have the nvt panels instead of tianma especially for the 64gb versions all the low quality panels stay the same.

HK$$ said:
I too have an nvt screen. How's it in quality as compared to tianma?
Click to expand...
Click to collapse
It's generally same.

Tianma is LCD display ; NVT is touch panel

20.02.2019 global

I am not using the Poco phone but the redmi note 7. I have the same tianma panel as some of the users of f1 do.
Seems to be also facing a touch latency problem. Any fixes yet other than custom roms.?

bbtee said:
I am not using the Poco phone but the redmi note 7. I have the same tianma panel as some of the users of f1 do.
Seems to be also facing a touch latency problem. Any fixes yet other than custom roms.?
Click to expand...
Click to collapse
Tiamana panels dont have that issue..your will be fixed with driver updates

Samsung Galaxy A20 - The good and the bad

O.K, the Samsung Galaxy A20 is a budget phone (I bought mine for AU$239) so I do not expect any "flagship" performance but the initial attraction was the Amoled display that has some degree of daylight readability, reasonable camera performance, the relatively big battery capacity for SoC size and the glimmer of hope in rooting this device.
After a little while, some things becomes apparent which I would like to share:
There is no light sensor so screen brightness cannot adapt to ambient light....a strange and disappointing omission
The phone is made in Vietnam not South Korea...just an observation
The heavily embedded bloat from Samsung and Google is chronic in magnitude and its primary purpose is for harvesting personal information and pushing ads
Fingerprint lock works efficiently but the rear sensor is hard to locate
WiFi reception range is poor.
The Android One UI is pleasingly clean but the Settings menus are a bit disorganized
Root can be achieved relatively easily but is "precarious" to say the least.
Show me your good and bad list

jajk said:
O.K, the Samsung Galaxy A20 is a budget phone (I bought mine for AU$239) so I do not expect any "flagship" performance but the initial attraction was the Amoled display that has some degree of daylight readability, reasonable camera performance, the relatively big battery capacity for SoC size and the glimmer of hope in rooting this device.
After a little while, some things becomes apparent which I would like to share:
There is no light sensor so screen brightness cannot adapt to ambient light....a strange and disappointing omission
The phone is made in Vietnam not South Korea...just an observation
The heavily embedded bloat from Samsung and Google is chronic in magnitude and its primary purpose is for harvesting personal information and pushing ads
Fingerprint lock works efficiently but the rear sensor is hard to locate
WiFi reception range is poor.
The Android One UI is pleasingly clean but the Settings menus are a bit disorganized
Root can be achieved relatively easily but is "precarious" to say the least.
Show me your good and bad list
Click to expand...
Click to collapse
It had no light sensor but somehow it uses the cameras to adjust to ambient light.

Update after using for some time.....
I really miss not having a notification LED - a backwards step to delete it for the notched display fad. An edge LED would have been great but that would cost 3c to include.....
Mobile reception is noticeably weaker than my old Moto G 2013 and Xiaomi Redmi Note2 - another backwards step!

jajk said:
Update after using for some time.....
I really miss not having a notification LED - a backwards step to delete it
Click to expand...
Click to collapse
I agree. I came from a Nexus 6P and found the notification light very handy. It's not a deal breaker for me though.
Does anyone know if the A20 has an oleophobic layer on the screen?

This might be stupid question but why does my A20 SM-A205G not have NFC there is no options under settings or on status bar to activate it but I see some SM-A205U have it and other 205g have enabled, do I have the chip in phone already? Just need to flash other firmware to use it? Has anyone else had any luck activating NFC?

I've had the phone about a month now and coming from an LG V30 before this I can say that despite all the cons I'm overall happier with this phone over that garbage. Barely.
Pros:
The A20 camera is much better with low light
Apps seem to crash less
I also like the Samsung UI more than I expected
The samsung keyboard is so much better than any other keyboard I've been able to find in the app store
I like how the lock button is on the side instead of the back like on the V30
Cons:
The camera is still pretty grainy even in sunlight
The auto screen brightness sucks balls. I can't even count how many times the screen dimmed & brightened just in the last few mins while I'm sitting in one spot
I also very much notice the lack of ram. It feels really laggy at times, like a 5 second delay when I'm just typing or sometimes I'll tap and it'll register as a hold
I can easily see the downgrade in screen resolution when watching videos
The proximity sensor. I'll be in a call and occasionally my face will mute the call or dial numbers
Or when I had the feature activated to double tap to turn on the screen, it would turn on in my pocket all the time and mess with buttons or sliders. On numerous occasions my phone would be ringing and I'd pull it out to find out my leg was messing with the volume slider. Not once did the LG do that
And finally I should've looked into the ability to root this phone before I got it. I have the A205U sadly and didn't make sure it's even unlockable with all the extensive research I was doing while I was looking to replace my LG

ChewbaccaAndroid said:
This might be stupid question but why does my A20 SM-A205G not have NFC there is no options under settings or on status bar to activate it but I see some SM-A205U have it and other 205g have enabled, do I have the chip in phone already? Just need to flash other firmware to use it? Has anyone else had any luck activating NFC?
Click to expand...
Click to collapse
I have the same question.... I've seen through the internet many sites saying the a20 has nfc, and even give instructions for activating it , but i couldn't.... Wether it has or not, I'm not certain at all.
Any way to activate nfc using root or something else of the sort?

Mi Note 10 Pro / CC9 Pro Premium AMOLED Burn-in

Got it 2 days ago, barely even used it, still waiting for unlocking permissions...
I believe it's just Temporary Burn at max brightness but I've never seen it be so obvious on literally ANY display before!!
The shadow you're seeing is caused by the Brightness Slider in dark mode, and can be recreated in less than 5 seconds, and goes away after 20 seconds
I read somewhere in the MIUI forums that it could be a software problem regarding MIUI 10/11's advanced display algorithms, but I highly doubt it as I know the system only changes the overall contrast based on lighting
I did multiple tests with dimming On/Off, and compared it to my Mi8 SE running some Xiaomi.eu MIUI 11 beta, it's a completely new problem on the Note 10
Please test it yourselves as well, I'm looking forward to detailed replies
Many thanks!!

I have mine by 2 months, mi note 10 with cc9 pro xiaomi eu rom, started noticing the same things latest 2 weeks ( you see it better in a dark enviroment ).
Max i reach is half brightness, can't stand more, so i can guarantee that is not because of max brightness as i've seen that happening even with just like barely readable brightness.
Reading mode and anti flicker don't help.
I can even assume that with anti flicker on ( that i always have ) is worse.

Deleted

UPDATE:
The problem has gotten much worse, does anyone know who's manufacturing these for Xiaomi / Huawei?

ZINHAR said:
UPDATE:
The problem has gotten much worse, even the white text I'm typing right now in the XDA Labs app is leaving light shadows when I backspace, I'm %99 sure that I have a factory deflect, and no warranty, so I actually might end up replacing the screen in a few months if officially stated fixed versions become available
Does anyone know who's manufacturing these for Xiaomi / Huawei?
Click to expand...
Click to collapse
Visionox manufacfure the display, not the usual Samsung xiaomi used for their oled. Samsung is prone to burn in too, every oled is, but it is clear that quality talking this display is inferior to the Samsung one's, never seen this kind of ghost burn in until this phone. Let's hope will always remain only a temporary burn one

This is unbelievable... even the Samsung Galaxy S5 mini has far superior image quality and calibration

I don't have any burn-in problems yet but I can agree with you about the calibration and quality issue. Even when I change it to warm or cold, I can't notice a big difference, and I don't really like the colors it shows. Most of the reviews say this phone has a great screen, I don't think they were lying but there must be a problem with the quality standards of the brand of the screen. My 3 years old S8 Plus shows better colors with its cracked screen, which is annoying.

Question Slight Greenish tint on top of BS4 on grey background when brightness is lowered

It's been 5 days since I ordered my black shark 4 global 8/128 overseas.
While experimenting some things through my phone, I noticed that on a grey background, on the upper part of my phone is a slightly greenish tint.
I am on a dark room and light are tuned off, and I lowered the brightnes to maybe like 15-20% and that is the time when the tint is noticeable. I'm on ultimate refresh rate(144hz) and the tint was slightly reduced when I turned down the refresh rate to 90z and 60hz.
I researched and found out that this is a common phenomena on amoled screens. Some brands specially like one plus fixed it through OTA updates.
I also thought it is because our model is brandnew and still not stabilized, also the new E4 amoled we are using.
Can someone enlighten me if I'm correct? Is it fixable via OTA update? is it a software issue?
(I can't take a photo of the issue , I don't have any other equipment which can take the actual phenomena I am saying)

I've tested going down to 15-20% and I can't see that. Maybe is common in certain devices. How can you set the 144Hz? I only can set "natural" setting in the refresh rate which is 120 Hz according to the developer options.