My KJam backlight keeps changing by itself to dark - 8125, K-JAM, P4300, MDA Vario General

Suddenly my KJam backlight always turns to low without me doing so, then I have to change it to high, barely can see what I’m doing as it is almost black. This is kept happening especially after I installed Pocketweather. I reinstalled the Rom, it worked fine then suddenly it is back again when I switch the screen off, or automatically it is switched off, the backlight slider I find it at the lowest end.
Why thus is happening, it’s driving me crazy, please help me

yeah me too want to know solution for this too ?

Related

Screen goes dim after a while

Hi,
i have a problem with my three days old HD. Besides the fact it seems to be much slower than it should be, the problem is the screen goes dim after a while. I'm not talking about it going black after a while, like it's supposed to, but in normal working mode it just kinda becomes darker, kinda like notebook screen goes a little dim when you unplug it from power. When i turn it on, it looks ok, but after a while, mostly after it first time goes black due to inactivity, the screen looks dimmed, no matter what i do, and after a few minutes it returns to normal, without any apparent reason, kinda random. At first i thought it might be something in HDTweak, so i did the factory reset, but it's happening again. Any ideas?
Try disabling the light sensor. It is supposed to adjust the screen brightness automatically, depending on the external light conditions. You can disable it in 'Energy', under Start -> Settings.
Well, it sort of works. When i disable the light sensor, i get the screen for adjusting the light on battery and AC. When i adjust the slider for battery, the screen lights up and it's ok. But, the moment the device locks itself (via HDTweak setting, the only thing i adjusted in HDTweak, it dims, and when i unlock it, it's still dimmed. Then when i again go into light sensor setting and press on the slider, it lights up. I don't understand what's going on. Faulty device maybe?
Also try changing the settings in the advanced tab.
Adding a minute or reducing a minute here seems to kickstart the device - and the annoying screen dimming goes away.
r
Andrew

My HTC HD2 screen turned black / low light

The phone stayed in my pocket most of last night, but I picked it up to see when the last bus would go and thought the battery was dead. But it's like the sensors are broken, the screen is on the lowest brightness setting, just like the LEDs are completely broken. It has flashed a few times, and the brightness did come up to a normal level for a few seconds, but today it's completely dark/low light.
This makes it very hard to use the phone, does anyone have any idea what could be wrong? I'm thinking about reflashing it, but I'm not sure that would help?
I think the screen is broken... I tried to hard reset it and it still doesn't light up. It's completely dark, so I can't see anything when I'm outside...
This is really bad...

Screen Backlight

I just got my OP2 yesterday and noticed something. The backlight on this phone when on something white will for some reason just suddenly flick dimmer than it was and not go back unless I either reboot or mess with this brightness anyone else had this?
And yes I have adaptive brightness turned off. I remember I had this issue on my old N5 and it bugged me to no end.

A5 2016 sometimes won't wake up, screen flashes

Hi,
I have this phone for little over 2 years. For over 1 week now I'm experiencing my phone not being able to wake up when I use the power button/home button. Whenever I push the button, the screen flashes for like 1s blue color, you can also see that the notification panel is blacked out and part of it green and it doesn't wake up. Sometimes it doesn't even flash. It used to take about 10 tries to wake it up but today I couldn't wake it up. I performed soft reset, I couldn't see the booting animation at all but it rebooted, buttons lit up and I was able to get in. It's like the phone is working fine in the background but the screen doesn't light up. I can turn down/up the volume, take a screenshot, get into settings, open apps, write a message but the screen is black. Even my alarm went off this morning but I couldn't dismiss it.
I downloaded an Always On Display app. Although I don't actually see the screensaver when it's locked, it's still on and it's easy to get in beacuse of it.
It all started with the screen flickering on minimum brightness. In February this year I had the screen replaced for the same issue but this time it's worse because of the blacked out screen.
Any ideas what it could be? Faulty display again?
Thank you
tessicorn said:
Hi,
I have this phone for little over 2 years. For over 1 week now I'm experiencing my phone not being able to wake up when I use the power button/home button. Whenever I push the button, the screen flashes for like 1s blue color, you can also see that the notification panel is blacked out and part of it green and it doesn't wake up. Sometimes it doesn't even flash. It used to take about 10 tries to wake it up but today I couldn't wake it up. I performed soft reset, I couldn't see the booting animation at all but it rebooted, buttons lit up and I was able to get in. It's like the phone is working fine in the background but the screen doesn't light up. I can turn down/up the volume, take a screenshot, get into settings, open apps, write a message but the screen is black. Even my alarm went off this morning but I couldn't dismiss it.
I downloaded an Always On Display app. Although I don't actually see the screensaver when it's locked, it's still on and it's easy to get in beacuse of it.
It all started with the screen flickering on minimum brightness. In February this year I had the screen replaced for the same issue but this time it's worse because of the blacked out screen.
Any ideas what it could be? Faulty display again?
Thank you
Click to expand...
Click to collapse
It's over to have this phone for little over 2 years now you should have to change
TIP:
Flash a new stock rom of your phone from sammobile via ODIN.
Sophia.xda said:
It's over to have this phone for little over 2 years now you should have to change
TIP:
Flash a new stock rom of your phone from sammobile via ODIN.
Click to expand...
Click to collapse
That would be great, but I'm not a person that buys new phone every 2 years. I was thinking about it though .
When it comes to flashing. Do you think that would help? I don't want to end up with a black screen unable to set the phone up again. Cause overall it's working great .
Hi, i have the same problem, i'm from Belgium, and I have blinking screen problem and wake up screen problem :s
is it a software issue (nougat???)
before the big update (marshmallow i dont have any problem)
i'm on firmware A510FXXS7CRJ6_A510FLUX7CRJ1_A510FXXU7CRJ6_HOME.tar.md5
Turn screen brightness up abit to stop the blinking of screen. It's an issue of the screen hardware itself at low brightness after wear and tear. As for the hanging issue, maybe it has to do with your AOD app? Try uninstalling the AOD app OR flashing a stock Rom OR custom rom OR factory reset and use your phone at a higher brightness that the screen does not blink and see whether it still persists.
conanDO98 said:
Turn screen brightness up abit to stop the blinking of screen. It's an issue of the screen hardware itself at low brightness after wear and tear. As for the hanging issue, maybe it has to do with your AOD app? Try uninstalling the AOD app OR flashing a stock Rom OR custom rom OR factory reset and use your phone at a higher brightness that the screen does not blink and see whether it still persists.
Click to expand...
Click to collapse
Thanks, because of my past experience with the same problem earlier this year I know about that "solution". Unfortunately, it makes the battery die faster as expected. Which is sad because I used it mainly on low brightness. So it's really not a solution at all.
I got rid of the AOD app because I found out that the phone lights up on 2nd try. AOD didn't work at all. I have to wake it up, put it to sleep and wake it up again which is always successful and the screen lights up. The screen flashes white about 3 times in a row now otherwise it works.
I haven't flashed it yet although I wanted to. But I will see what can I do. Thank you though!
I'm having the exact same issue using LineageOS.
It's already been 2 years, but since this thread is one of the first results on Google, I'll gladly add a solution.
Exact same problem for me, went through two screen repairs under warranty, and it would always come back a year later. No difference between Samsung OS and LineageOS, though I haven't tried rooting it.
Found on Ifixit: this issue is related to the AMOLED screen technology used by Samsung (among others). You can look it up, apparently there is a bad (?) voltage management in low brightness which worsen with time.
I could fix it with the "OLED Saver" application on Play Store. It works around this voltage management and allows you to reduce the brightness without the green flickering.
I still got white flashes after the installation, but not anymore the day after. I could even disable this application without the issue coming back.
I don't know what kind of magic cleanup this app performed, but it really is a (screen) life saver.

Galaxy J7 2017 black screen

Hi everyone, my wife has this phone and she dropped it off the table. On first the screen started to dim like lowering the back light, then stripes have appeared on screen and after that it turned black. Screen turned on again, dimmed again and turn black again and thats it. Later when I tried to turn it on nothing happens not even a turning on sound. It only start to vibrate every 5-10 seconds for a quite time. I wanted to order a new display but now I'm not sure is it display broken or there is something wrong with system or firmware.
Any experience with this behaviour and any advice what could it be and how to fix it?
Cheers

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