How check if screen is AMOLED or not? - Android Q&A, Help & Troubleshooting

I brought a refurbished 3T and I think the screen is replaced.
How can I confirm this?
Any other test than black png so to provide a concert evidence to the seller.
thanks

AMOLED displays are pure black when the pixels are off.
It's striking in a dark room.

blackhawk said:
AMOLED displays are pure black when the pixels are off.
It's striking in a dark room.
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Yeah I tried that, that is why I think I have being conned.
But is there app or something like that can make the claim uncontested.

AmoledOrNot said:
Yeah I tried that, that is why I think I have being conned.
But is there app or something like that can make the claim uncontested.
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DevCheck

blackhawk said:
DevCheck
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Thanks
Does anything here should raise a red flag??
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The resolution is as promised but I suspect the screen is lcd not AMOLED, it doesn't mentions anything like that.

Get some polarized sunglasses and turn rotate the display. If it's LCD you'll get the blackout effect.

Related

Banding screen Droid RAZR

Hi, all!
I have just bought my new moto, everything is cool but screen has parallel lines at low brightness and on grey and blue pictures. I heard about this issue on Super AMOLED but I think that on my screen this is too match. Please, check out photos.
The first photo is white pattern at low at brightness level about 10%. The second is grey pattern at about 80%. The last one is photo at about 60% of brightness.
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Is it normal or I should to swap phone?
oh snap, that is real bad, compared to my phone thats really not normal.
Yeah not normal
you should get it replaced.
I went to service center in hope to replace for a new one but there don't want to replace, they show me another phone with similar defect and sad that this is pretty "obvious" for this model. I think they are hustler or I have a luck to talk with not competent people.
Thanks a lot for your respond, it give me confidence that truth is on my side and I will try to replace phone anyway.

[Q] Purple-ish Capacitive Buttons? Get it replaced?

Hey guys I received my HTC One earlier today and I noticed a couple of things, one, there are small gaps between the polycarbonate and the speaker grill and my capacitive buttons seem to have a purple-ish hue to them. it almost seems as if they are not completely lighting up. Has anyone else had this issue?
If not should I go ahead and get it replaced?
The only reason I ask is because when I went to the AT&T store, the display model had the same issue.
By the way, they look sort of like this, except more purple:
http://www.blogcdn.com/www.engadget.com/media/2011/02/htcincrediblesbuttons.jpg
Mine have somewhat of a hue.
They look like this:
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i think thats there normal color, as for the gap you can either accept it as it is( i know i did cuz it was not apparent)
or you can get it replaced,
tell4ever said:
i think thats there normal color, as for the gap you can either accept it as it is( i know i did cuz it was not apparent)
or you can get it replaced,
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your fine. mine is the same color

[Q] Digitizer/Grey Lines

I'm wondering if the faint vertical gray lines I see on my G3 are a device specific issue or if everyone is having the same problem. For some reason whenever I look at the stock background or anything with white or light colors I can see vertical gray lines on my G3's screen. They aren't that noticeable, but now that I have noticed them, I seem to always notice them. Does anyone else have this problem or should I exchange my device for a new one?
So looking at a white or light background makes these "grey bars" visible?
cervantesmx said:
So looking at a white or light background makes these "grey bars" visible?
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Yes, faint but now that I've seen it already they bug me.
All the LG G3 phones have it. Some people notice them, some don't. And they vary in degree
Those little grey lines
Are your phones capacitive input sensors, its how the phone registers touch.
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Its the digitizer if you look carefully theybare cross hatched not just vertical. But i can't notice mine unless i put the phone up to my eye
Sent from my LGLS990 using Tapatalk

Amazon fire hdx 8.9 4th gen purple spot

Hey I notice a purple spot on my screen. Its very noticeable on dark background. Does anyone know what happened to it?
https://ibb.co/mt16bp
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laidbackcloud said:
Hey I notice a purple spot on my screen. Its very noticeable on dark background. Does anyone know what happened to it?
https://ibb.co/mt16bp
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Blunt object impact. Can't be repaired; panel must be replaced.
Davey126 said:
Blunt object impact. Can't be repaired; panel must be replaced.
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When you say panel, you mean screen/digitizer?
laidbackcloud said:
When you say panel, you mean screen/digitizer?
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Correct (short for LCD panel). Very difficult to replace on HDX devices due to copious use of industrial glue during the manufacturing process. Of course, you probably won't care about cracking the old display during disassembly. Getting the new one to lay flat is a different matter.

Android 10 hidden numbers

Hi , I have Samsung s9 plus with android 10. I have in the bottom right corner, above the menu, some hided red numbers. It appears on main screen, internet and other applications. Is more easy to see on withe wallpaper or internet. Does anyone have the same? Thanks.
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They are very well hidden... I see nothing.
blackhawk said:
They are very well hidden... I see nothing.
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I find out now that is between the screen and the glass, I increase and decrease image, but numbers don't move, is 208 on soft red. Thanks
There appears to be an odd purple mark in the lower right... no red... but I'm starting to see red.
You taking screen shots?
You need to take an picture of the screen with a camera not screen shot to show a imprinted number...
Thanks I will do that, also appears more small numbers under, I suppose that is the reference of the display.

			
				
Is that "burn-in" perhaps?!
OLEDs don't burn in per se but high brightness, statically still areas can wear faster and their pixels are then become dimmer than surrounding ones.

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