Develop Bugs

[Q] Yellow backlit "J" key on physical keyboard

Does anyone else have something similar to this?
Without the backlight, the J key looks perfectly normal, just like the others. When lit however, it is noticeably yellow compared to the others.
I thought at first I got the key dirty somehow, but after trying to clean it repeatedly, then seeing it not backlit, I have come to the conclusion that it's the actual backlight.
Doesn't really bother me, but it does stand out, especially now that I look there first whenever I open my keyboard.

I dont have that on my keyboard everything shows the same amount if light and same whiteish color

Maybe someone in China peed on the keyboard....

Can youh posyt a pic? I think all of my keys are "yellow"
Sent from my T-Mobile G2

I am at the store right now. As soon as i get home in about an hour i will post the picture.
Thanks fellas.
Sent from my HTC Vision using XDA App

Picture of yellow "J"
Well, here's the picture.
Sorry if the quality is kinda of bad. Had to do it in low lighting so it can be seen well, and I took the picture from my old G1
So this is what it looks like. Let me know what you think!

tazz9690 said:
Well, here's the picture.
Sorry if the quality is kinda of bad. Had to do it in low lighting so it can be seen well, and I took the picture from my old G1
So this is what it looks like. Let me know what you think!
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Click to collapse
Yea something is wrong. Either you had some highlighter/marker on ur finger or that area led is going out. I just dont know if the keyboard does 1 led per key. But thats ehat it looks like is an led going out
Sent from my T-Mobile G2 using XDA App

xile6 said:
Yea something is wrong. Either you had some highlighter/marker on ur finger or that area led is going out. I just dont know if the keyboard does 1 led per key. But thats ehat it looks like is an led going out
Sent from my T-Mobile G2 using XDA App
Click to expand...
Click to collapse
Well, that's not good news.
Hmm, I don't think it's really worth me taking it back to T-Mobile for. I'm still under my buyer's remorse. I already took 1 back, but then again, it sucks that I have this problem in the first place.
It looks normal when not lit, so I didn't get something on it. Like I said, not sure if it's even worth taking back to the store.

to say the truth, i lol'd when i saw the picture, it looks like someone pissed inside the phone in the factory LOL, or a drop of piss XD

Well the "J" is one of the keys with the little tactile nub on it...is the "F" key the same way?

Nope. The F key is the same as the others.

tazz9690 said:
Nope. The F key is the same as the others.
Click to expand...
Click to collapse
Yup..... Some China dude has a grudge against America... He must be mad that Snao-On-Tools are still make in the USA.

The keys near the F key look a little yellowish as well.
My guess would be the keyboard backlighting has a bad LED; maybe it uses multiple LEDs to generate the white backlight and the blue LED died?
Anyone have a G2 disassembly link so we could see?

keenerb said:
The keys near the F key look a little yellowish as well.
My guess would be the keyboard backlighting has a bad LED; maybe it uses multiple LEDs to generate the white backlight and the blue LED died?
Anyone have a G2 disassembly link so we could see?
Click to expand...
Click to collapse
Nope thats how a white dying/burnt led looks. I do alot of work with leds.
Sent from my T-Mobile G2 using XDA App

Got my replacement phone, no lines or blobs

I just got my replacement from samsung using warranty, phone is not refurbished!!! Is brand new with a date on the back of 3/12, oh and is made in china my original was dated 09/11 and was made in Korea. Took a few days though, they were back ordered

Nice! Lol always nice to get a new device. I never trusted refurbished phones but that's just me.
Sent from my SAMSUNG-SGH-I727 using XDA

Pics or it didn't happen

Ok??
Sent from my SGH-T989 using XDA

I have two Galaxy S II's and one has no lines what so ever, but it looks very yellow and dingy. The other looks richer but it has the lines. You have blobs/streaks, you just can't see them.

When I got my first SGSII I had those pesky lines and blobs, exchanged it at a local Tmo for a new one and the issue was gone for me too.
I have looked very carefully and I can confirm, lines are non existent

Check the back to see where yours was made, maybe the korean models were defective

Maybe we'll get lucky one day and Samsung will get sued or something and issue recalls
wishful thinking...

You want proof
Here's a pic as it came on the box

When the other poster said pics, this isn't what they had in mind. They were referring to pictures with the screen on lowest brightness in a dark room viewing the blobs.jpg.
This would provide "proof" that your screen has no lines or blobs.

here's what you do. download a pure black picture. when it is night time. put that picture up on your phone and turn off the lights. take a picture with no flash. upload here.

Rod3 said:
When the other poster said pics, this isn't what they had in mind. They were referring to pictures with the screen on lowest brightness in a dark room viewing the blobs.jpg.
This would provide "proof" that your screen has no lines or blobs.
Click to expand...
Click to collapse
He really doesn't need to prove anything. If he finds it perfect then. So be it. The issue is just a placebo effect.

darkamikaze said:
here's what you do. download a pure black picture. when it is night time. put that picture up on your phone and turn off the lights. take a picture with no flash. upload here.
Click to expand...
Click to collapse
Or you could dial #*0#* in dialer like everyone else. And its come to a point to where ppl don't even care to notice the blobs, I could care less if they were there or not. But good thing you got your fix OP
Sent from my SAMSUNG-SGH-I727 using XDA

relldroid said:
Or you could dial #*0#* in dialer like everyone else. And its come to a point to where ppl don't even care to notice the blobs, I could care less if they were there or not. But good thing you got your fix OP
Sent from my SAMSUNG-SGH-I727 using XDA
Click to expand...
Click to collapse
Correction... dial "*#0*#"

I just ran all the test and i did the black screen vibration and my phone looks alll dark and black guess im good?

xxjrsmith3xx said:
I just ran all the test and i did the black screen vibration and my phone looks alll dark and black guess im good?
Click to expand...
Click to collapse
DID YOU RUN THE blobs.jpg TEST? The black vibration test hides the flaws. A near black screen like grey shows it. Hell, I don't know who, but as someone said, opening the XDA app itself shows the flaws.
EDIT: DO YOU EVEN HAVE THE SGH-T989 PHONE? LOL.

if the XDA app splash screen has lines going through it...then yeah you have a T-mobile SGSII
Turn your brightness all the way down (not really necessary but it just shows the lines even more) and open XDA app, TADA, wood grain son.

I can confirm that the blobs and all have certainly been lessened. I just got this white model a little less than a week ago and the screen quality has vastly improved.
Sent from my SGH-T989 using xda premium

I'll run all these test Saturday. If my wife and I can upgrade.....not sure if we have the money.

I was just messing around I totally believe you I have seen t989's with good screens I just can't seem to get one.

[Q] Display Imperfections/Black Splotches

So I understand this is a recurring issue with some AMOLED displays, but is anyone else noticing black splotches on your screen if you put a fully black image on the screen, turn the brightness all the way down, and look at your phone in a very dark room? I'm curious how common it is before I complain. I'll post a picture tomorrow if I can capture it. It looks kind of like an ink trail near the middle of my screen. Thanks!

Richardsonke said:
So I understand this is a recurring issue with some AMOLED displays, but is anyone else noticing black splotches on your screen if you put a fully black image on the screen, turn the brightness all the way down, and look at your phone in a very dark room? I'm curious how common it is before I complain. I'll post a picture tomorrow if I can capture it. It looks kind of like an ink trail near the middle of my screen. Thanks!
Click to expand...
Click to collapse
Yeah I think just about everyone's phone is like this...I know mine is and I remember another guy posting about this as well
Sent from my SPH-L900 using xda app-developers app

I just checked my over 2 year old SGSIs screen and do not see any blotches. You are also the first person that i have read about that has any problems. That does not mean youeare alone however. I have heard many running 4.2 complaining about black artifacts being seen on the screen.

Dmwitz said:
I just checked my over 2 year old SGSIs screen and do not see any blotches. You are also the first person that i have read about that has any problems. That does not mean youeare alone however. I have heard many running 4.2 complaining about black artifacts being seen on the screen.
Click to expand...
Click to collapse
Some people here are having the same problem while others are not... luck of the draw I suppose... doesn't really bother me but if it bothers you try and see if you could get another in its place
http://forum.xda-developers.com/showthread.php?t=1956170
Sent from my SPH-L900 using xda app-developers app

I have them on mine; there are two splotches about 3/4" long roughly in the middle, just left of center. Doesn't bother me though, since I can't see them during normal use.

Had the issue on mu-tiple Samsung skyrockets...the original note and on the s3.
I have seen them on some note 2 but mine I have not found one yet.
Sent from my SPH-L900 using xda app-developers app

I have a small one at the top left of the screen. My first one was right down the middle. My OCD took hold and I swapped it out. It's the same thing on my new one.
Sure, I wish it wasn't there but you really have to have perfect conditions to actually see it.
It actually has something to do with inconsistent electrical charge or something. There's actually a team for this but I can't remember it.
LCDs have dead pixels and amoleds have these splotches.
The DROID Razor is really bad as is the PS Vita. It's just that tech.
Sent from my SPH-L900 using xda premium

Note 2 screen

Hello guys I just bought N2 week ago and yesterday and today my screen started flickering green. Is this a problem or defect? I posted a video on YouTube.
https://www.youtube.com/watch?v=DDAnL-4h5Ng&feature=youtube_gdata_player
Sent from my SGH-T889V using xda app-developers app

Get that replaced at once! I had that on my S2 and was given an instant exchange.
sofia-captivate said:
Hello guys I just bought s3 week ago and yesterday and today my screen started flickering green. Is this a problem or defect? I posted a video on YouTube.
https://www.youtube.com/watch?v=DDAnL-4h5Ng&feature=youtube_gdata_player
Sent from my SGH-T889V using xda app-developers app
Click to expand...
Click to collapse

Re: Note 2 lcd problem?
arjun90 said:
Get that replaced at once! I had that on my S2 and was given an instant exchange.
Click to expand...
Click to collapse
It's note 2 not s3 sorry my mistake. Should should I exchange it or maybe it was a glitch.
Sent from my SGH-T889V using xda app-developers app

Exchange it, as I said, I had the same exact thing going with my S2 a couple of years back. Re-flashing the Firmware will not correct this. I know how you must feel right now; the right thing to do is exchange it, because that is certainly not normal.
sofia-captivate said:
It's note 2 not s3 sorry my mistake. Should should I exchange it or maybe it was a glitch.
Sent from my SGH-T889V using xda app-developers app
Click to expand...
Click to collapse

arjun90 said:
Exchange it, as I said, I had the same exact thing going with my S2 a couple of years back. Re-flashing the Firmware will not correct this. I know how you must feel right now; the right thing to do is exchange it, because that is certainly not normal.
Click to expand...
Click to collapse
So they are gonna exchange it. They don't carry the phone in stock usually. So they order comes In next day. They can't get white cause it's 10 days wait so they getting me titanium Grey. The guy was trying to scam me and wasn't gonna exchange it. He didn't know I knew the policies.
Sent from my SGH-T889V using xda app-developers app

Good, I'm sure you will like the Titanium Grey. I find it more professional looking than the white. The Grey looks sleeker, and less plasticky. Be sure to check the phone thoroughly before leaving the store. To make life easier, when you are in the store, type *#0*# in the dialer and make sure your phone is glitch-free before giving it the OK. The LCD Test is generally used as a Check-list. Don't forget to also check the buttons (Volume, Power, and Home Button) to make sure they are registering properly. Hope you enjoy your new phone.
sofia-captivate said:
So they are gonna exchange it. They don't carry the phone in stock usually. So they order comes In next day. They can't get white cause it's 10 days wait so they getting me titanium Grey. The guy was trying to scam me and wasn't gonna exchange it. He didn't know I knew the policies.
Sent from my SGH-T889V using xda app-developers app
Click to expand...
Click to collapse

arjun90 said:
Good, I'm sure you will like the Titanium Grey. I find it more professional looking than the white. The Grey looks sleeker, and less plasticky. Be sure to check the phone thoroughly before leaving the store. To make life easier, when you are in the store, type *#0*# in the dialer and make sure your phone is glitch-free before giving it the OK. The LCD Test is generally used as a Check-list. Don't forget to also check the buttons (Volume, Power, and Home Button) to make sure they are registering properly. Hope you enjoy your new phone.
Click to expand...
Click to collapse
Wow thanks a lot for you great help. Really appreciate it. When I dial *#0*# what am I looking for?
Sent from my SGH-T889V using xda app-developers app

sofia-captivate said:
Wow thanks a lot for you great help. Really appreciate it. When I dial *#0*# what am I looking for?
Sent from my SGH-T889V using xda app-developers app
Click to expand...
Click to collapse
It brings up the factory test menu lets u test certain stuff
Sent from my SGH-T889 using Tapatalk 2

Lcd test (*#0*#)
First, you will test Red, Green, and Blue, this will help distinguish any pixel anomaly (dead pixel); if there are pixels that are not consistent with that particular color, you know that is stuck/dead pixel. To go through the RGB, press red for example, look for any pixel inconsistencies, then, press the back button, and do the same for the Green, Blue, and Receiver (White).
When you arrive to white, look for dead pixels there, and also check to see if there is any tint (pink or yellow); if there is 'too much' you have the right to refuse.
There is not much you can do in vibration other than check to make sure the vibration on the phone is working, if you are able to get old of dark setting, you can search for any black lines or splotches (if there is too much mess underlying the screen, I would refuse),
In dimming you can check to make sure that the colors are consistent on both sides of the screen,
Mega cam checks to make sure camera is functioning,
Sensor confirms to make sure accelerometer / proximity / barometer/ lights / gyroscope sensor/ magnetic sensors are working, place you finger on the top sensor on front of the phone and the screen will turn green (confirms proximity is working), you can move the phone in your hand and the numbers should change accordingly for the accelerometer, barometer, lights, gyroscope, and magnetic sensor. Swirl your phone in towards you and the magnetic sensor should turn as well (the black circle),
In touch, follow the pattern as displayed on your screen, if all blocks register green, then your display is perfect for touch response,
Sleep will make sure the display turns off,
Speaker confirms that the speaker is working, I
In Subkey--press the volume buttons (up and down), power, and home buttons, the color of the display should change accordingly,
Press front cam to make sure front cam is working,
In LED the notification lights will appear and as you tap the screen the color will change accordingly (you should see red, blue, and green).
Wacom Test--take your Spen out and draw along the pattern, if all works congrats,
In Low Frequency you can go through each set of Hertz just to check whether or not the screen is functioning normally,
Skip Barcode emulator test (as long as your rear mega camera worked, disregard his step),
In Sensor Hub test face the phone down (screen on table) and the sensor should respond PASS.
Remember, you need to press the back button after completing each test in order to do a different test.
sofia-captivate said:
Wow thanks a lot for you great help. Really appreciate it. When I dial *#0*# what am I looking for?
Sent from my SGH-T889V using xda app-developers app
Click to expand...
Click to collapse

Be aware of screen defect!

So I got gs3 a week ago and loving it so far. But I started noticing the screen has some issues.
Everytime I am on blank screen with just the back light on, I notice multiple dark circles thru back light. They are about the size of peas and you can only see them in darker room. I am trying to take a picture but still not successful.. again you can not see them in normal light or when you are looking bright images. .you can only see them on blank screen with back light on. (Examples: when you start the phone and only Samsung logo during boot. Or when you go to seetings and choose lock screen, the blank area with back light on shows the defects. )
I hope you guys don't have that issue, because it does bother me when I am using phone at night..
I called tmo to replace it and hopefully new one doesn't have same problem.
Cheers,
eidt; pics attached below..

Its the screen type most have it to a varying degree
Sent from my SGH-T999 using xda premium

You may want a different phone if it bugs you. Purchase a phone with a different style of screen or read the forums before you make a purchase.

myowin said:
So I got gs3 a week ago and loving it so far. But I started noticing the screen has some issues.
Everytime I am on blank screen with just the back light on, I notice multiple dark circles thru back light. They are about the size of peas and you can only see them in darker room. I am trying to take a picture but still not successful.. again you can not see them in normal light or when you are looking bright images. .you can only see them on blank screen with back light on. (Examples: when you start the phone and only Samsung logo during boot. Or when you go to seetings and choose lock screen, the blank area with back light on shows the defects. )
I hope you guys don't have that issue, because it does bother me when I am using phone at night..
I called tmo to replace it and hopefully new one doesn't have same problem.
Cheers,
Click to expand...
Click to collapse
sorry im new and dont know where the "post on this forum" button is. But i do know alot about roms and stuff. I have this problem too does anyone know how to fix this? Or is it like a screen problem thing.

Its called mira its on all led screens just a lot less noticable on some devices
Sent from my SGH-T999 using xda premium

Common on amoled screens.
Sent from my Galaxy S3 using neighbors wifi

A simple Google search would of net you the answer. Those are dead pixels almost all amoled screen have does, but if they are really really big you can definitely try to get a warranty. Only thing is your next phone will probably have it too either for better or worse. If it's not too bad I would stay with the phone, technically if you don't think about it you get past it not many times you would notice it anyway.
Sent from my SGH-T999 using xda app-developers app

I have these too. Like you, only time I see them is a completely black screen in the dark. In other words, where's the problem?
Whatever it is has zero affect on viewing anything.
Sent from my SGH-T999 using Tapatalk 2

Screen Burning or Dead Pixels?
I think what you are referring to is screen burning. This case is very common among OLED displays, kind of how plasma TV's have burns on the screen. It's there but its not that bad since this type of technology gets it (for now....the tech is still way too new). However, it helps to not keep the same picture or whatever showing for long periods of time, as this can cause a burning outline of the picture. In this I mean, something that is displayed that doesn't change. Remember some screen may get more burned then others but it will still be there. For the reason of this burning, I'll let you search it up. If that doesn't answer your problem then let me know, but if it is dead pixels (which I dont think it is) then you might want to change it. However, your problem sounds like the common problem called burning.

pics attached..
Gurashieruro said:
I think what you are referring to is screen burning. This case is very common among OLED displays, kind of how plasma TV's have burns on the screen. It's there but its not that bad since this type of technology gets it (for now....the tech is still way too new). However, it helps to not keep the same picture or whatever showing for long periods of time, as this can cause a burning outline of the picture. In this I mean, something that is displayed that doesn't change. Remember some screen may get more burned then others but it will still be there. For the reason of this burning, I'll let you search it up. If that doesn't answer your problem then let me know, but if it is dead pixels (which I dont think it is) then you might want to change it. However, your problem sounds like the common problem called burning.
Click to expand...
Click to collapse
it very well could be the burning... but I managed to take pics.. seems like problem is under the AMOLED.. because when I take a screenshot. it not there.. I am just assuming...

ticojpunk said:
I have these too. Like you, only time I see them is a completely black screen in the dark. In other words, where's the problem?
Whatever it is has zero affect on viewing anything.
Sent from my SGH-T999 using Tapatalk 2
Click to expand...
Click to collapse
I attached my pics.. are you seeing same things?

Its a common thing on all AMOLED phones. It happens during the printing process, nothing to lose sleep over.
Sent from my SGH-T999 using Tapatalk 2

This is very common in all amoled screens. Same was the case with my vibrant. Since these are only visible in a dark room with a black screen, its not that big of a problem, I imagine. It's not so much a defect as it is an aspect of the screen type. Think of it like this... if you purchase a Mac over a Windows computer, it will have aspects that you dislike that the other likely won't have have. But the same is true of the Windows device (although not likely ha)...if it is a deal breaker, avoid amoled in the future.

Have this also, even on Note 2. Especially, while watching Netflix or screen is dark

Seriously there was a long thread about this when the phone first released. Could we not resurrect this?

elracing21 said:
Seriously there was a long thread about this when the phone first released. Could we not resurrect this?
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Click to collapse
my bad.. would you mind pointing out the link for that thread? I went back multiple pages on index but unable to find.

You might want to exchange that. The definately isn't burning that I am talking about. So yes, go ahead and change that out. I don't have that on my phone so it looks like a defect. Those spots almost look like bloches of some sort and looks as if something had burned underneath. That or one guy said, dead pixels (which is a definate yes for exchange).
So go exchange the product and see how it goes for you.

Gurashieruro said:
You might want to exchange that. The definately isn't burning that I am talking about. So yes, go ahead and change that out. I don't have that on my phone so it looks like a defect. Those spots almost look like bloches of some sort and looks as if something had burned underneath. That or one guy said, dead pixels (which is a definate yes for exchange).
So go exchange the product and see how it goes for you.
Click to expand...
Click to collapse
Well we went through thisnwith the sgs2. People found that exchanges just resulted in more phones just like this. Therw was a whole about it there also. It is a defwct in manufacturing in most oled screens for these phones. People have reported it in their note 2s also.
Sent from my SGH-T999 using xda app-developers app

myowin said:
it very well could be the burning... but I managed to take pics.. seems like problem is under the AMOLED.. because when I take a screenshot. it not there.. I am just assuming...
Click to expand...
Click to collapse
Ha Ha Ha!
That, fellow readers is plain and simple, DUST between an applied screen protector and the glass. Look at the cutout at the Camera focusing led area!
Not a naked device. Lotta bruhaha over what amounts to NOTHING !

myowin said:
I attached my pics.. are you seeing same things?
Click to expand...
Click to collapse
Yeah. Same thing I see. I don't think I have as many as you. But definitely the same "issue".
Sent from my SGH-T999 using Tapatalk 2
---------- Post added at 01:57 PM ---------- Previous post was at 01:55 PM ----------
bobolinko said:
Ha Ha Ha!
That, fellow readers is plain and simple, DUST between an applied screen protector and the glass. Look at the cutout at the Camera focusing led area!
Not a naked device. Lotta bruhaha over what amounts to NOTHING !
Click to expand...
Click to collapse
It's not dust under the screen protector. :beer:
Sent from my SGH-T999 using Tapatalk 2