[LG G4] [H815] Display random flash from dim to normal brightness - G4 Q&A, Help & Troubleshooting

Hello, I have problem with display brightness, display random flash like I set brightness to minimums..But I didnt pressed anything, just randomly display dim but I can use phone only if I'm in dark room or its night, on regular day light i can't use it..So problem is that random fast flashing from normal to dim (but not normal dim, its hard to work on phone) phone is not hot and I dont play any games or using any software..
I used try recovery reset, factory reset and nothing..
Any solution or anybody have same issue like me..

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[Q] Screen backlight issues

So I had to do a factory reset on my EVO Tuesday (Stock ROM) because it got completely messed up and the text app wouldn't work anymore, any since I did that I've been having an issue with a change in behavior for the backlight that's driving me crazy.
Pre factory reset, backlight timeout 1 min:
unplugged screen dimmed after 1 min, after an additional min it turned off
plugged in screen dimmed after 1 min, never turns off
After factory reset:
both plugged and unplugged screen simply turns off after one min
The way it's working now is driving me crazy and I have no idea why it changed as there were no changes to the phone, simply a factory reset on a stock phone, does anyone know how to get it back to the old behavior?
Mine does this weird in and out thing. Where it would go bright then go dark , then medium, then dark. I have the auto adjustment on and would like for that to be fixed.
I believe it has something to do with the Kernel. So don't quote me on that.

[Q] Need Help !!!!

Hi guys,
I've a very strange issue with my phone. l'll try to explain it precisely despite my awful english !...
I'm under revolution rom since the beginning and everything worked fine until I tried to use my phone as a modem (for a mac) during my hollidays.
when I go back to "normal" use, the phone started but the screen remained very very dark. I could see that the phone was turned on but it was like if the brightness has been set to minimum. I try to reboot into recovery, Re-flash the rom, restore a backup,etc.
One day, without any reason, the phone turned on normally and worked fine for two weeks. But, during the last night, I put my phone in plane mode and in the morning this ****ing bug was here again !
Any idea or solution ? Note that manipulations are limited because of the darkness of the screen...
hope also that my problem is understandable !!!...
Hi, your English is perfectly understandable.
Is your brightness set manually or automatically?
thank you,
the brightness is set automatically but I would be very surprised if my problem only deals with the brightness setting !....
I must add that sometimes the phone starts on normally but the screen freezes very quickly (at the code pin entering screen)...
I'm guessing you've tried switching to manual and turning it all the way up?
No I didn't...but the problem for now is that I can not access to the settings because the phone doesn't start normally !...
How does it start? Where do you get stuck?
Sometimes I can the HTC logo very dark and sometimes, as I said, the brightness is normal but the screen freezes when I have to tape my pin code.
I can also access the recovery mode, sometimes, by doing power button + vol. down button. By this way, I tried to reflash the rom, do a factory reset, but nothing works....
Whilst in the bootloader does the screen look darker there? Should be bright white, with text.
No, in the bootloader, I can see the text but it's also trough a darkened screen !...
If your screen is dark in the bootloader, which should be bright white then you have a hardware fault. Reflash a stock PD98IMG.zip or RUU and contact your network/HTC for a repair.

[Q] there is any Auto brightness controller ??!

Hey guys how are u all
Ihave a question can i rise the brightness up with auto brightness working
Becouse if i but mark on auto brightness icant rise up the brightness
Like ios do coz on low brightness there is avertical bending isue on my screen
And iwant to ask if there is any rom that solve the vertical bending problem thank you very much
Get an LCD screen device.
Banding == solved.
adrynalyne said:
Get an LCD screen device.
Banding == solved.
Click to expand...
Click to collapse
That not asolution ilove my gnexus and im not thinking for replace it
Thats your only solution to banding.
Yes there is a solution just rise up the brightness and the vertical bending will dissapear but if you did you cant apply the auto brightness mode and thats the problem
Bigxie's rom let's you set the autobrightness level: it's the only one I've tried so I can't comment on whether there's other roms that do the same thing.
You can use an auto brightness app and set custom brightness levels, like mine.
Ive tried that app, free version on ics 4.0.3 and had several reboots\crashes.
One is when using pattern to unlock:
- Screen is set to turn off after 30 sec, when the screen dims before shutting off and i swipe the pattern it crashes reboots.
Also in normal operation when the screen dims at shutoff point and i do something to wake it it can crash\reboot.
I have had mainly two brightness settings, 40.0 and 130 lux (0.5mA)
40.0 was set at 21% and 130 at 33%.
When commuting on bus\train the light conditions change frequently and also that can cause the reboot\crash.

Backlight Flickering

Guys how are you doing? I'm having a strange issue with my phone, i've searched the forum about it but couldn't find anything about it other than a couple of messages without any conclusion. This problem is mostly noticeable when having the screen in minimum brightness, it's like the backlight flickers a bit. If writing an SMS for example, whenever you press a keyboard key the screen flickers (it's very faint but noticeable). Also, when you open any app, it's like the brightness goes up a bit and down again, it's a very strange issue. Is anyone having this problem? Seems to be a software glitch because if you leave the phone in a static screen, that doesn't happen. It's updated to the latest fw version btw, it always happened.
To make it clear (and if anyone wants to try it), this happens with auto brightness, and the slider set to the minimum in a dark condition, whenever the brightness is medium/high at least i can't notice it.

Brightness issue

My friend got this watch as gift. Its fully dimmed and changing brightness level doesn't fix the issue. It has like 5% brightness of my lg g watch at level 1. It gets bright only when it boots up (on sony logo only then it gets dimmed again). Is there any fix for it? I reset it and wont work.
Hardware problem I suppose but it's strange the watch is bright while booting up...
If it's dark when set to auto and brightens if you manually set the intensity, then the photo detector is probably bad. It sees no light, so it sets it as low as possible. If it's always dark (after boot), you've probably got bad hardware or a bad configuration file.
If it's the latter, you might want to look for instructions on a full reflash of the watch's firmware.

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