[Q] I9506 screen color tone problem - Galaxy S 4 Q&A, Help & Troubleshooting

Hi all,
A months ago I bought a new, unopened I9506. When i switched on i realized it has a display failure. The bottom of the screen was pink on bright background (1st attached picture).
I took the phone to the service, they warranty replaced the whole front panel.
But unfortunately the new display isn't perfect either. The abnormal pink color ceased, but on the same area of the screen has different (brighter) color tone like above. I took it back to the service again. After a week they told me, that the instrumental measurement values are normal, and compared to other S4's there isn't any difference.
The fact is, the problem not so significant like before, but is see it, and it is annoying. I attached the current state (2nd picture), but my camera isn't good enough to show the problem properly.
I don't want to disassemby in the warranty period and the service won't solve my problem, so my question is there any software solution to balance the tone of screen partly?
And what could cause this failure? Interference of the antenna, or something push the back of the display?
I don't believe the replacement part is wrong too.
thanks

All screens are different...
Try to *#0*# then select "receiver"
Check the white tone..
I don't think it's defected..
I bought s4 3 tines. Every time tone is different. Amoled never same..
It's normal dude..
Sent from my GT-I9500 using xda app-developers app

Related

X7500 display led problem!!!

Well this could be really e serious problem:
using my X7500 I noticed the display light level decreasing a little bit. I supposed it could be a wrong impression of mine. So I tried to push the upper side of metal case and I noticed the light coming up. Then I made a little pression on the same edge (near HTC brand as well the lower opposite side) and the light decreased again.
I assume there must be a problem with led position under metal cover. It's eneogh a little pression to have problem with light display. Maybe it could depend on "shock" due to the keyboard hook-up that could damage led connector inside...
Please help and tell me if you have noticed same problem...
Please any suggestions for this problem?
asci said:
Please any suggestions for this problem?
Click to expand...
Click to collapse
Sorry asci - not come across this problem with my Ameo.
Hi...
try to make a little pression under jog dial button...around that area and notice if something happen with brightnes.
Thank you for your courtesy.
asci said:
Hi...
try to make a little pression under jog dial button...around that area and notice if something happen with brightnes.
Thank you for your courtesy.
Click to expand...
Click to collapse
Tried the suggestion you made but no problems here either asci. Maybe your unit is faulty. Try returning it due to electrical shortage or something similar. It certainly does not sound normal.
asci said:
Hi...
try to make a little pression under jog dial button...around that area and notice if something happen with brightnes.
Thank you for your courtesy.
Click to expand...
Click to collapse
Yeah, tried that - absolutely nothing happening.
I turned it back to assistence...it seems to be an isolated case, and they could tell me when I'll have it back.
HTC customer care: bad assistence:
1. they didn't solve my problem yet;
2. they didn't answer to my mail.
I purchased an HTC X7500 on 21.05.2007. After two days it immediately showed some problems related to LCD display. In fact on making a light pressure all around display metal case, especially near the hardware buttons on left side, the LCD background light became weak as it loosed brightness.
I brought it immediately to a technical customer care for reparation. After two weeks it returned back but the problem related to display brightness still persist.
1. The backlight is weak and display is not so bright and not stable too as the very first time I tested it. Now when I connect 4 in 1 cable or mini USB one, and some time even when a set stylus in its lodging, by doing some little movement of the cables connected or of the stylus in its lodging, the backlight display increases to its normal brightness level for while after that it turns itself weak so that display colors appear not vivid and with a lack of brightness. Before testing it I verified that all backlight levels were set on maximum level with any power option.
2. When I browse through menu icons and select them (without launching application) their appearance is not stable and it seem to flicker.
3. If I set a white background on display it seems to be completely crossed by horizontal stripes and its appearance (color and brightness) is poor.
So today I had to come back to HTC customer care point to leave it for the second time in twenty day.
I would like to point out that I am a professional user and I’m really disappointed about it. I had to bring my device to a technical assistance point twice and the first time, I had it back not repaired.
Considering that, and also considering its high price and that it came with original unmistakable manufacturing faults, I am asking to HTC for a replacement of the device with another X7500 perfectly working.
Best Regards.
asci said:
HTC customer care: bad assistence:
1. they didn't solve my problem yet;
2. they didn't answer to my mail.
I purchased an HTC X7500 on 21.05.2007. After two days it immediately showed some problems related to LCD display. In fact on making a light pressure all around display metal case, especially near the hardware buttons on left side, the LCD background light became weak as it loosed brightness.
I brought it immediately to a technical customer care for reparation. After two weeks it returned back but the problem related to display brightness still persist.
1. The backlight is weak and display is not so bright and not stable too as the very first time I tested it. Now when I connect 4 in 1 cable or mini USB one, and some time even when a set stylus in its lodging, by doing some little movement of the cables connected or of the stylus in its lodging, the backlight display increases to its normal brightness level for while after that it turns itself weak so that display colors appear not vivid and with a lack of brightness. Before testing it I verified that all backlight levels were set on maximum level with any power option.
2. When I browse through menu icons and select them (without launching application) their appearance is not stable and it seem to flicker.
3. If I set a white background on display it seems to be completely crossed by horizontal stripes and its appearance (color and brightness) is poor.
So today I had to come back to HTC customer care point to leave it for the second time in twenty day.
I would like to point out that I am a professional user and I’m really disappointed about it. I had to bring my device to a technical assistance point twice and the first time, I had it back not repaired.
Considering that, and also considering its high price and that it came with original unmistakable manufacturing faults, I am asking to HTC for a replacement of the device with another X7500 perfectly working.
Best Regards.
Click to expand...
Click to collapse
Good luck and let us know how it turns out. I hope HTC doesn't become so big that they stop listening and taking care of their customer. I would hate to look for another high end phone manufacturer.
Arrived today...replaced.

Screen hue change issue diagnosis and feasible fix

Hi
Thank you for reading this. I appreciate every suggestion you give.
I know there was a post discussing the exact same problem, but I'm discussing a possible repair/replacement on my own.
----Here is the issue-------
To put it simple, the screen tone flicks between slight pink and slight green.
I think what happened is, the screen generally stays in a normal tone which is slightly pink tinted(which is very fine and comfortable), then at some point, the brightness of red pixels have a sudden drop so the screen turns to a greenish hue. The green hue would not stay for long, for 5 second to a minute it would change back to the normal tone.
It's very slight, and sometimes it's hard to notice especially when the brightness is high. But at night this could be really an issue. It is really distracting at night!
There is no way to reproduce the problem, it just happens randomly, and could be as frequently as every other 6 seconds.
Reference:
http://forum.xda-developers.com/showthread.php?t=1336187
------Question-------
Now, my note does not have a warranty, and the problem comes out of the box. I heard Samsung charges about US$270 here for replacement. Well, a new note just cost about $450. Now I'm a high school student without lots of money so I want to fix it myself.
Possibilities I found:
1. Super AMOLED issue, which can be fixed by a screen replacement
2. a poor contact between screen and the board
3. The wacom layer interferes with the screen, which need to replace the whole screen assembly
4. A bad motherboard
Any idea about how to fix it? Thanks!

[Q] Galaxy s4 I9505 screen issue

Hello everyone
I just bought a galaxy s4 live demo unit and then i swap the motherboard , everything works fine but i look closely on the screen on white and other bright colors i can see some shadows on the screen with something that was once displayed on the screen , probably this was displayed a long time and somehow was imprimed on the screen , i don't know , i will attach some pictures , it is not so visible on that , but is quite embarrassing , on the upper part of screen it appear big "group play" and some strings , and in the lower part witch is more vissible i cannot read what it appear but is some text too whit some strings , the shadows appear like brighter color on the color that is displayed , i dont't know how to call them exactly, it is any way to resolve this without replace the screen ? why is this happening ?
I think is something common in demo units , i just see another demo with exactly same shadows , probably it is just temporary because both demo units are new with factory foil on them , and the shadows appears with both normal and demo motherboards , is there a way to fix this ?
It is called "burn in" I guess. Not sure how to fix it though...
tanjiajun_34 said:
It is called "burn in" I guess. Not sure how to fix it though...
Click to expand...
Click to collapse
It's burned in, every galaxy s unit had this issue. In fact all amoled screens do

S7 edge weird blurry screen

Hi everyone one
I'm not sure this is the right section for my topic, if not I'm sorry and pls direct me.
So I got this phone from my brother whith a weid screen he has no idea how he got this problem, it had a charging issue that he already repaired after that this problem appeared
The phone screen looks a bit weird no scratches or visible damag. but the screen is blurry the contrast is a so hight that the colors are a bit off and are not seamless, and there is this stains as if the screen is brocken (see atached pictures), so far if I hide the upper bar the rest of the screen will looks normal as if there's no problem with it
Any Idea on how to fix this problem is the screen damaged ?
Thanks in advance
No fixing that I doubt, unless the cable for the screen is loose, in which case I still would not try to fix it yourself unless you're very patient and have steady hands.
To fix, you need screen replacement.
According to samsung technician at service center, the purple strain damage are caused by having the phone being press on or under high pressure such as putting the phone inside tight jean pocket or being sit on etc.
Sent from my SM-G935F using Tapatalk
Thanks for the help guys, I opened the phone and checked there is nothing pushing the screen or any visible damage
**update**
Good new the screen went back to wotk notmaly 3 4 days after wotking intensly with the phone using an app called twilight, it helps remove the stains when activated blut it's a blue light filter
Now the phone work well without that app
Thanks

[HELP] Green Tint and Touch Problem on Non-Overclocked Screen After Replacement

Hi, everyone. I'm new on XDA. I need some help to fix issues on my phone. So long story short, I dropped my 9T and had the the screen replaced. However, the replacement screen has a very weird green tint on most brightness level, which from what I have researched, only appears on 9T with overclocked screen. Mine is not overclocked. The green tint only disappear at either under 10% brightness level or above 80%. However, I am very sure this is software problem because (1) the green tint disappear when the fingerprint sensor is touched (when it lights up) on the lockscreen, and if I release the fingerprint, before it unlocks, the tint disappear. It become normal. This in on MIUI
(2) on AOSP (I have unlocked the bootloader and tried different custom roms but yield no result) the same behaviour occured. When fingerpirnt is touched on low brightness, tint disappear.
Then I also have this touch problem where practically, if I touch 2 points on the screen which is close, the screen will register my touch as a small swipe. This is really annoying when typing, and I cannot play some rhytm games too because of this. Again, I am quite confident that this is software problem.
Similar problem happened years ago on a OnePlus One phone. Some said it was resolved after an update. Some said OnePlus has fixed it. Others doesn't experience it at all : https://forum.xda-developers.com/oneplus-one/help/faulty-touch-screen-typing-fast-t2829175
Maybe the default driver from XIaomi isn't compatible with my replacement screen? Or other problems?
I have actually claimed the repair warranty once, because the previous screen also had this problem, plus a blue colour on the side. But the same thing happened here (the green tint and touch problem)
Ps : I am confident the AMOLED panel of the replacement screen is original or at least of the same quality as the original beacuse the colour is very vibrant just like the original one.
Can someone help me with this issue? I am willing to provide any logs or system info or anything.
Thank you! Any help or response is appreciated!!
zenfo134 said:
Hi, everyone. I'm new on XDA. I need some help to fix issues on my phone. So long story short, I dropped my 9T and had the the screen replaced. However, the replacement screen has a very weird green tint on most brightness level, which from what I have researched, only appears on 9T with overclocked screen. Mine is not overclocked. The green tint only disappear at either under 10% brightness level or above 80%. However, I am very sure this is software problem because (1) the green tint disappear when the fingerprint sensor is touched (when it lights up) on the lockscreen, and if I release the fingerprint, before it unlocks, the tint disappear. It become normal. This in on MIUI
(2) on AOSP (I have unlocked the bootloader and tried different custom roms but yield no result) the same behaviour occured. When fingerpirnt is touched on low brightness, tint disappear.
Then I also have this touch problem where practically, if I touch 2 points on the screen which is close, the screen will register my touch as a small swipe. This is really annoying when typing, and I cannot play some rhytm games too because of this. Again, I am quite confident that this is software problem.
Similar problem happened years ago on a OnePlus One phone. Some said it was resolved after an update. Some said OnePlus has fixed it. Others doesn't experience it at all : https://forum.xda-developers.com/oneplus-one/help/faulty-touch-screen-typing-fast-t2829175
Maybe the default driver from XIaomi isn't compatible with my replacement screen? Or other problems?
I have actually claimed the repair warranty once, because the previous screen also had this problem, plus a blue colour on the side. But the same thing happened here (the green tint and touch problem)
Ps : I am confident the AMOLED panel of the replacement screen is original or at least of the same quality as the original beacuse the colour is very vibrant just like the original one.
Can someone help me with this issue? I am willing to provide any logs or system info or anything.
Thank you! Any help or response is appreciated!!
Click to expand...
Click to collapse
Please go to the place who replaced the device and ask them to check the screen in another device or ask them to clean the contacts with 99% isopropanol and re attach it.
Hello! I'm having the exact same problem on my Mi A3 - green tinted screen + faulty touchscreen after replacing it, all in the same conditions as yours. What did you do? Did you manage to fix your screen? I'm guessing your solution is probably adequate for me too!
If anyone could help me out with this issue, it'd be really nice! In the store, they replaced my screen 3 times already (the last time, it was supposedly an "original screen", more expensive and harder to get) and the problem still remains... I'm getting desperate over this!

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