Found dark screen workaround except for camera viewfinder - Galaxy S 4 Q&A, Help & Troubleshooting

My ATT Galaxy S4 (SGH-1337) screen went dark a couple of months ago. I had not turned the phone on in some time. Two days ago, I turned the phone on and was able to see the screen barely, under the right light.
I was able to get the screen in a very workable condition by following steps below. There is one exception, the camera. It takes good photos but the viewfinder screen is still pretty dark.
1. Under Brightness:
a. Turn automatic brightness off
b. Turn brightness slider to up to brightest level
(the slider bar itself has an issue: turning to highest level actually causes screen to darken , at about 75%, the screen is brightest)
2. In Screen Mode select Dynamic
3. Install "Filter Your Screen" app from Playstore
a. Create filter with all 4 elements (Alpha, Red, Green, Blue) set to highest settings
Any ideas how to fix the camera viewfinder will be appreciated.

Related

A way to reduce backlight brightness beyond default settings?

Hi peoples
Does anybody know of a way of reducing the backlight brightness below the stock settings?
I've tried various screen filters, such haxor Screen Filter, but these apps are rubbish IMO. All they do is apply a grey transparency filter over the screen, they don't actually reduce the backlight brightness The result is a trick, the screen looks darker but it's really only because the white pixels are made grey. The problem with this approach is that it messes up the contrast and colors, and gives a washed out look.
I like to sometimes use my N10 in a pitch black room, which needs a very dark screen. My old Galaxy Tab 8.9 was good for this, because the backlight was able to go much darker than the N10. The thing is, I know the N10 hardware is capable of having a darker backlight because if you don't touch the tablet for a few minutes, the screen first goes dim before it turns off.
I would like to be able to manually activate the very dim screen setting, or better still, have a lower brightness range available in the brightness settings.
RootDim
mag13 said:
RootDim
Click to expand...
Click to collapse
Thanks - works a charm!

Does your Screen turn pink-ish at lowest brightness (adaptive screen ON/OFF)

So mine turns pink/reddish when setting the lowest brightness setting (ambient display on) - you have to be in a pitch black or very dark room.
When its off, it still does it but its not that bad.
EDIT: If yours does turn pink, will you RMA?
Mine does this as well. I rarely ever see the brightness go that low so it doesn't bother me that much. However what does bother me, is at 50% brightness unless i am looking at the screen dead center the screen has a redish, bluish, or greenish hue on it. Was very yellow the first day I had it, but the yellowish hue is gone.
I have adaptive on. Last night I set my brightness all of the way down. For the first time I saw a slight pink hue. Increasing the brightness fixed this. I am not sure if turning off ambient would have fixed it. If I see it again I'll try turning it off.
I thought was a known feature of amoled. I'm guessing they will all do it at low brightness.
Mine actually got worse. When I first noticed it, it was acceptable. Now its almost reddish already. Some people say its actually a feature of AMOLED. However, when I tried it on a different AMOLED Screen, Note 3 and 4 - i didnt see it.
No, I tried with adaptive brightness on and off and can find no color changes except maybe a slight blue hue when tilting the device and then almost rainbow effect at close to 180 degrees. Guess I got a good screen.

Nightclick & LCD vs AMOLED

Last night, I went to use my night clock app with my new LG v20. On my Note 7, the screen was totally 100% black except for the numbers.
On the v20, the entire screen was stil lit - faint, but clearly still lit up in a light light grey.
Is this just how an LCD screen works, or is there something I have to do in order to get the rest of the screen to go off.
(Note, this includes the 2nd screen which was also lit - and I had the brightness at 0%).
--
BTW, this may need to be a separate thread - on my phone I notice that the auto-brightness tends to be too dark. Any way I can adjust it to be brighter when in auto mode, or should I just go to manual ?
polstein said:
Last night, I went to use my night clock app with my new LG v20. On my Note 7, the screen was totally 100% black except for the numbers.
On the v20, the entire screen was stil lit - faint, but clearly still lit up in a light light grey.
Is this just how an LCD screen works, or is there something I have to do in order to get the rest of the screen to go off.
(Note, this includes the 2nd screen which was also lit - and I had the brightness at 0%).
--
BTW, this may need to be a separate thread - on my phone I notice that the auto-brightness tends to be too dark. Any way I can adjust it to be brighter when in auto mode, or should I just go to manual ?
Click to expand...
Click to collapse
Try turning off second screen and see what your results are.. Second screen has a seperate black light that slightly bleeds out to the rest of the screen. It was horrible on the V10 but much improved on the 20..
Swizzle82 said:
Try turning off second screen and see what your results are.. Second screen has a separate black light that slightly bleeds out to the rest of the screen. It was horrible on the V10 but much improved on the 20..
Click to expand...
Click to collapse
The night clock app has the option to turn off the notification, which also turns off the 2nd screen.
...oops. It did, until I followed your suggestion in the other thread about the more setting to enable time/date when in full screen or notification bar hidden. I'll have to get into the habit of turning *off* the more setting at night.
(Either way, doesn't help with the slight gray background color. I can probably just get used to it as long as I'm not damaging the screen by having it slightly on all night. I need to google if LCD screens have burn in problems I guess.)
--
Maybe I should just start pm'ing you all my questions
polstein said:
Last night, I went to use my night clock app with my new LG v20. On my Note 7, the screen was totally 100% black except for the numbers.
On the v20, the entire screen was stil lit - faint, but clearly still lit up in a light light grey.
Is this just how an LCD screen works, or is there something I have to do in order to get the rest of the screen to go off.
(Note, this includes the 2nd screen which was also lit - and I had the brightness at 0%).
--
BTW, this may need to be a separate thread - on my phone I notice that the auto-brightness tends to be too dark. Any way I can adjust it to be brighter when in auto mode, or should I just go to manual ?
Click to expand...
Click to collapse
I use this on all my phones since I feel stock auto is too dim. https://play.google.com/store/apps/details?id=com.velis.auto.brightness
polstein said:
The night clock app has the option to turn off the notification, which also turns off the 2nd screen.
...oops. It did, until I followed your suggestion in the other thread about the more setting to enable time/date when in full screen or notification bar hidden. I'll have to get into the habit of turning *off* the more setting at night.
(Either way, doesn't help with the slight gray background color. I can probably just get used to it as long as I'm not damaging the screen by having it slightly on all night. I need to google if LCD screens have burn in problems I guess.)
--
Maybe I should just start pm'ing you all my questions
Click to expand...
Click to collapse
Sent from my LG-H830 using Tapatalk
Use comfort view on low or medium. Will help lower the ~9000K color temp some and help blacks a hair. Faint glow is typical on LCDs. Higher quality LCDs and higher quality led's can help. Lg skimped here. Sucks they didn't even give us color modes to pick from. The colors are waaay off. But using comfort view dims the blue pixels and helps considerably.
polstein said:
On the v20, the entire screen was stil lit - faint, but clearly still lit up in a light light grey.
Is this just how an LCD screen works, or is there something I have to do in order to get the rest of the screen to go off.
Click to expand...
Click to collapse
That's just how LCD works, they need CCFL or LED back light to lit up the screen, it's not possible for it to be completely black while turned on. With AMOLED the individual pixels can turn off itself which is why the black are blacker on them. OLED screens also have very high refresh rates which eliminates flickering, this is good for people who are concerned with eyes health.
Lcd doesn't get burn in, but it can get ghost image retention. It was f***ing horrible by the end of my V10 usage.. Never had the problem on the G2 3 or 4. Just the V10, even after factory resetting.
Swizzle82 said:
Lcd doesn't get burn in, but it can get ghost image retention. It was f***ing horrible by the end of my V10 usage.. Never had the problem on the G2 3 or 4. Just the V10, even after factory resetting.
Click to expand...
Click to collapse
Had the same issue my V10, that is my biggest V20 concern. . My v10 was not even a year old.
I get the engineering and cost reasoning, but not sure I like the lcd screens.

S8 Display turning Yellowish and dark lines with <50% brightness

Hi,
I am using S8 SM-G950FD on stock android 8.0.0 from year+, all of a sudden the display on the screen has turned yellowish, i have tried the adaptive display option and changed the RGB to max and low and the settings for edge colour but the display is still yellowish.
Also noticed another thing: If the brightness is <50% the yellowtinge with black lines come up but if >50% then the display is fine.
I tried to click photos/ take screen shots but the yellowish is not visible on photo, but the dark horizontal lines on whitebackground are clearly visible. have not dropped the phone but this has begun suddenly.
when the phone is under bright light the automatic brightness increases the brightness of screen and the display is clear, when the phone is moved into low brightness the mentioned issue comes up
Any suggestions on how can i resolve this?
Any help is appreciated, phone is out of warranty. Is there any any replacement circular for galaxy s devices, like FOC?

s7 edge screen flickering

i recently bought a used s7 edge. the cellphone's display is damaged buf overall it works fine. except for a few issues mainly related to light sensor according to my understanding.
1: the display flickers when auto brightness turned off or when brightness is set to anything less than maximum
workaround: i installed screen filter app to control the brightness
2: the screen goes to green screen of death when device is put to sleep
workaround : turn AOD to always on and never Turn it off
3: the display goes to green death screen during call and wont get normal unless call is ended and screen is locked and turned on..
4 : at AOD ,the screen flickers at night time or in a dark place but gets back normal in bright light..
info i need : i thought what if it was possible to change the android framework values for the light sensor so that no matter whatever the light of the surrounding may be.. the device will always think it's in bright light.
for example if the settings for current values are
high 5000 medium 2000 low 600
then i change it to
high 1000 medium 500 low 25
so that the device will always think its in full bright area..
can anyone help me in achieving this goal? thanks

Categories

Resources