Sudden contrast increase - Galaxy S II Q&A, Help & Troubleshooting

All of sudden the contrast on my screen increased to ridiculous amount. I'm getting color banding, even the sign on power on screen is not sharp but has some extra grayish squares around the white letters.
Everything was fine, and after one charging cycle the phone lit up to inform me charging was done and the contrast (and brightness) was all the way up with no way of changing it back.
The 'Auto adjust screen power' option doesn't do anything for me now. Was on stock 2.3.4 KG2 when this happened
I've tried restart, removing battery, factory reset, even reflash (back to 2.3.3 stock, and now I'm on 2.3.4 KG 3stock), nothing works.
Here is screenshot from phone
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And here is photo of the same screen (photo quality is horrible, but it should give you idea)
Is there any way how to fix this or do I need to RMA my phone

Where is photo?
Make sure that you are not placing it under some light source which is causing the Auto Brightness to take effect, and also can't you decrease brightness from settings?

link for photo:
http://forum.xda-developers.com/picture.php?albumid=4411&pictureid=14582
The colors and brightness are way off even on manual brightness settings. When I purchased the set and set minimum brightness it was almost unreadable on direct sunlight. Now even with lowest brightness the display is readable without any issues on direct sunlight.

Goto display and set the screen mode to Normal instead of Dynamic.

EarlZ said:
Goto display and set the screen mode to Normal instead of Dynamic.
Click to expand...
Click to collapse
Don't have Normal there, only Standard, and it was already set on Standard.
Edit: It's not clearly visible on the photo, but the upper part (that's supposed to be full black) is covered with green dots on the display.

I've just experienced this last night, I was comparing the image I saw on my monitor to the SAMOLED and I noticed that the hair color was a very strong orange/red on my phone and its chestnut brown on the screen.. I checked the color mode and its standard.. I was playing around with the phone including rebooting it and it seemed to have gone away.
This was on XXKG6.

h4rr0d, this really looks like a hardware fault to me. Sorry to say, but I advice you to contact Samsung assistance.

Thanks for the replies guys, I've already RMA'd the cell, waiting for the service to respond now.
EDIT: Ok, so I've got the phone back today, the RMA report states they have 'exchanged an electric component', so no clue what it was. But I'm happy I've got my phone back fixed and they actually fixed it without any issues.

Related

Any night mode app which can turn page black, font white

Often at night when I use phone lowest brightness is still bright so I found apps which can dim it further but then they loose screen contrast too making it difficult to read.
Is there any app which can make night mode of selected apps (browser/gtalk/gmail/other few user selectable apps) background dark & font light / white similar to youtube app?
UC browser had this night mode earlier but latest version they have removed this feature. Ideally such app should be time sensitive & as the night time approaches it should start applying the night mode.
This is what I am looking to achieve
http://forum.xda-developers.com/showthread.php?t=990102
or
like this in reverse it would save battery specially in night.
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The closet App I can think of is CF.Lumen:
http://forum.xda-developers.com/showthread.php?t=1336643
It automatically changes the screen intensity/Colours according to the time of day. Brilliant app, and had actually improved my Sleep cycle.
Note : It's a addon for Chainfire 3D pro:
http://market.android.com/details?id=eu.chainfire.cf3d.pro
But the Free version has Render effects also, which also may help:
http://market.android.com/details?id=eu.chainfire.cf3d
Regards and good luck.
I looked at CF.Lumens but that does different colors in night mode not what I am looking for but thanks for finding it for me.
I wish some developers can work on this concept.
What about Lux Auto Brightness?
https://market.android.com/details?id=com.vito.lux&feature=search_result#?t=W251bGwsMSwxLDEsImNvbS52aXRvLmx1eCJd
no_use_for_a_name said:
What about Lux Auto Brightness?
https://market.android.com/details?id=com.vito.lux&feature=search_result#?t=W251bGwsMSwxLDEsImNvbS52aXRvLmx1eCJd
Click to expand...
Click to collapse
Same problem actually all apps adjust brightness "only" they don't adjust contrast which at low brightness is required to maintain good readability. I wish some one makes this app it should be simple to do so just by altering the color value as per user time table.
Me to .
My need is for an app or a MOD that wpuld provide me woth a button thatwould allow me tochangethecolors and cntrast and brightness of all the phone.
I will use it while using the phone in the bed.
Similar to what read view with night mode in dolphin browser.
I don't know those kind of apps but when I want to use my phone at night, I use an app called "Screen Filter".
I also use screen filter but it cannot function at low brightness of 20-30% the screen looses its contrast. The only solution to this problem is night mode which many gps app have it they reverse the diplay and increse visual contrast which helps alot in saving battery too. I hope some developer can work on this idea and make an app.
Bumping it up again after 6 months hoping some one knows any such app?

[Q] Screen Issues with Medium Grays

I noticed this the first day I had my phone, but thought it was just a fluke or some new touchwiz feature akin to the "linens" that iOS 5,6 had. But my note 3, white now on full stock MJ4, never rooted or tampered with yet seems to have some banding and aberrations with displaying medium grays. I have attached a screenshot that you can download and try for yourself. I am positive this is a bug, and with my limited knowledge I feel it is a software issue more than a hardware one that will hopefully get fixed.
Steps to really see the problem:
Download my screen shot on to your Note 3 (or open chrome browser, remove all windows so it is the gray background with the product logo as attached, then screen shot it yourself)
Do the following in a dark environment to see it best. (please)
Open the screenshot in gallery.
Zoom into it and pan around.
Play with different brightness settings and see if the banding with grays is more evident.
Turn on screen rotation, rotate screen.
Zoom and pan on the same screenshot in landscape view to see that the banding is apparent still only on the Y-axis, proving it was not part of the image.
I attempted to capture this on video and even scan it in my scanner, but it wasn't obvious like it is to my eyes. I want to know, does this affect other people's note 3s? If so I won't care as it really isn't a problem. But if it's just my handset, then I want to get it swapped out instead of risking a bad screen or any other on board hardware. I am most worried because the problem is different day to day and the banding seems to be greater towards the bottom of the screen
If you did all this, thank you!
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Same issue here as well as my girlfriends N3. If you mess around with the different display settings (dynamic, professional photo, etc) it increases it or decreases it. I've only noticed this with Chrome however. I will boot up my Evo 3D to see if it does it on there as well as my 2k12 N7.
Sent from my MiniN3

WEIRD screen "colouring" when automatic brightness is maxed out

Hello overyone,
I Googled and found nothing, so I'm here. Let's see what experts think...
What's happening:
When the "automatic brightness" function is turned on and the smartphone itself is exposed to the sun, it tends to "overdo" the level of brightness (and in a VERY strange way). Whole screen starts to look "washed out" and COMPLETELY strange. It is perfectly visible for example in a black version on Messenger. Display is not just "washed out", the letters is "outlined" aswell (kinda looks like is was "overbrightnessed" and "washed out" or "oversharpened" in some raster editor). At first I thought that it has to be a HW problem (really looks like display is broken or poorly connected to the bus). It is difficult take a picture of the phenomenon, so I tried to decribe it AND tried to replicate it:
Here is original screen of header banner of XDA forum - in darker enviroment the screen looks like this:
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Here is the modified one, looks very simmilar to the phenomenon what's occuring on the phone (brightness is pumped up and "sharpen" effect is pumped up (highly overused)) - in brighter enviroment (outdoor) the screen looks like this:
When the problem occured:
Yesterday. From all of the sudden. I have the phone for month or something, mabye less. No any problems until now.
What I tried:
Identifying the problem. Looks like SW problem. Occuring only in sunlight with "high" brightness. When the fron camera is covered, display darkens and the problem completely disappears. I tried restarting the phone, checking for updates, messing with the brightness settings. Nothing helped. When you make a screenshot, the picture is obviously fine.
Any ideas what it could be? Last thing to try is to factory reset the phone, but I do not want to do it right away obviously.
The phone has a valid warranty, so returning it is always an option (and I'll do it if I don't figure out what it might be).
Thanks for trying, have a wonderful day!
John
'Increased contrast' color profile fixed this problem for me.
Ha! Thats it! Thank you a lot!
I'm excited that the phone is completely ok. That means I'm happy with it so far.
It keeps me wondering, how is it possible that such a bad (non-functioning) feature is included and not patched? Instead of improving readability it turns the screen into complete mess.
Again,
thank you.

Question Screen problem when unlocking with fingerprint

I've set up fingerprint app lock. In the unlock screen, the display appears bright on the right and black on the left. Until this morning, everything was always black on these screens. Now I don't know why it turns on the LEDs on the right. The photo exaggerates the effect but it is evident. By setting the brightness to the minimum everything is normal; Raising it a little, it begins to be noticed. This problem is present only on these screens (during the unlock of apps) and nowhere else. How can I fix it?
thank you
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Check if Edge Lightning is disabled
Quake94 said:
Check if Edge Lightning is disabled
Click to expand...
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I tried to activate and deactivate it but nothing changes. I have also downloaded several apps to test the screen and trying with all types of lighting I don't have any problems. Could it be something related to the fingerprint reader?
Fabio07 said:
I've set up fingerprint app lock. In the unlock screen, the display appears bright on the right and black on the left. Until this morning, everything was always black on these screens. Now I don't know why it turns on the LEDs on the right. The photo exaggerates the effect but it is evident. By setting the brightness to the minimum everything is normal; Raising it a little, it begins to be noticed. This problem is present only on these screens (during the unlock of apps) and nowhere else. How can I fix it?
thank you
View attachment 5661465
Click to expand...
Click to collapse
Try unlocking with and without DC Dimming. It's in Developer Settings, see if anything changes
It may be a silly suggestion but make sure the lockscreen wallpaper is pure black
This is a common issue with most optical scanners. With somewhat grey background such as yours, the partial lighting up of the amoled can disclose all the uneven calibration. This can be minimised to a greater degree with software updates, like how Apple, Samsung or even Vivo did. In my GT2 Pro this issue is absent in general.
I contacted Realme support and they suggested I send it to the warranty repair center. Could they improve calibration or replace the entire display? Or is it useless to send him for assistance?

Question Sudden high battery drain ReVanced YouTube

I have this S23 Ultra for 3 weeks ish now and it was amazing on battery with YouTube ReVanced often getting 8-10h screen on with YouTube easily with 30+% left. Suddenly today it got pretty hot and battery drains like crazy in YouTube ReVanced.
I repatched the newest supported version, clean installed it, updated to latest microg, full shutdown and cold boot of the phone, cleared caches, nothing helps. Both on wifi and 5G the drain is this high.
Auto brightness was my second suspect and I checked the slider in the notification panel and it behaves normally. It responds to changes in ambient light as normal during YouTube and isn't overly high.
Anyone have any ideas what can cause it?
Check the screenshots (in Dutch unfortunately) for the difference in screen on and YouTube usage times.
8h+ sot and like 40% left so good:
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Today, bad. Only 5+h screen on and way less YouTube and battery is basically empty.
update it, the icon even changed since then. You're on a old revision.
A big factor is what your screen brightness was when watching videos. If you watch videos in low brightness (like during nighttime), then there will be a big difference to battery life compared to watching videos in high brightness.
No problems here
oVeRdOsE. said:
update it, the icon even changed since then. You're on a old revision.
Click to expand...
Click to collapse
Icon is manually set with Goodlocks theme engine from UX LED icon pack
But, i'm an xxxxx. I figured it out. It wasn't YouTube at all...
I got a new driver's license yesterday which I keep between my back case and the phone. This new one has NFC... It was just scanning NFC all day long with the phone unlocked... This apparently doesn't show up anywhere in battery stats.
Obviously I have NFC basically always on for Google Pay and such so yeah.
I can't keep my license in there anymore as there seems to be no real way to keep NFC on for pay but not read stuff constantly.
I'll figure something out. But problem solved.

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