Brightness stopped working and black screen after wake up. - LG Optimus G (International)

Hello.
Suddenly my phone decided to stop activating the screen after I press the power button to wake it up, but the soft keys light up and screen is working even though I am unable of seeing anything.
Also the brightness function not working as well.
Any idea how to fix it or should I send it back to LG?
PS. My phone is not rooted and running factory 4.1.2

kingdragon1 said:
Hello.
Suddenly my phone decided to stop activating the screen after I press the power button to wake it up, but the soft keys light up and screen is working even though I am unable of seeing anything.
Also the brightness function not working as well.
Any idea how to fix it or should I send it back to LG?
PS. My phone is not rooted and running factory 4.1.2
Click to expand...
Click to collapse
If it's under warranty, send it back to lg..,!!.. Best way..
Sent from my LG-E975 powering Stock 4.1.2

hasan4791 said:
If it's under warranty, send it back to lg..,!!.. Best way..
Sent from my LG-E975 powering Stock 4.1.2
Click to expand...
Click to collapse
I bought it 12 days ago but I was wondering if it has to do with some settings to avoid the fuzz...

kingdragon1 said:
Hello.
Suddenly my phone decided to stop activating the screen after I press the power button to wake it up, but the soft keys light up and screen is working even though I am unable of seeing anything.
Also the brightness function not working as well.
Any idea how to fix it or should I send it back to LG?
PS. My phone is not rooted and running factory 4.1.2
Click to expand...
Click to collapse
explain !
working screen but you cant see anything
brightness function not working on a dead / black screen?

No.
Let's take things from the start. Assuming that the phone is off when I open it the screen is fully functional. As soon as it goes into standby mode or by pressing the power button or after 30 sec or 1 min according to users settings the screen won't start again when you press the power button to wake it up.
As for the brightness setting is not working at all either I choose automatic mode or manually. I can only access the settings when I power on the phone when it is off.
I hope now it is crystal clear.

Try reformatting with new kdz
Sent from my Optimus G using Tapatalk

I send it to service for the moment as it is only 14 days old...

kingdragon1 said:
I send it to service for the moment as it is only 14 days old...
Click to expand...
Click to collapse
should have waited or my reply... we are not in same timezone. anyway its seems bsod a simple wipe or even kdz flash would confirm any hardware issue.

Thanks for the reply I will let you know as soon as I take it back....

Was the issue resolved?
Hi,
Just getting this same issue with LG Optimus G E975. Did you have any specific solution for this?

davevinci said:
Try reformatting with new kdz
Sent from my Optimus G using Tapatalk
Click to expand...
Click to collapse
It did not help me
I got the same as OP problem on my stock E971.

Related

[Q] HELP! Lock Screen BUGG

HELP PLEASE SOMEONE! :crying::crying:
My ROGERS Samsung Galaxy SIII LTE SGH-i747M running Jelly Bean 4.1.1 has a lock screen bug! I have been googling around the web, but still couldnt find anyone with the bug I am having right now, so i am asking for someone to plz help me out here! The bug just started today, my phone is set to "Swipe" mode on the lock screen, so usually I would just need to swipe my screen to unlock my phone, but today, when i press my power button OR home button, my phone turned on, and showed my lock screen for 1 second, and it unlocked by itself. I didnt have to swipe or anything, all i did was pressed my power button OR home button, and it unlocked by itself. I know this is just a minor problem, but it is so annoying! I am sorry if i dont make any sense, because its hard to explain the situation I am having, but plzzz someone help me out here!
Thanks!!!
Cheers!:fingers-crossed:
galaxysthree said:
HELP PLEASE SOMEONE! :crying::crying:
My ROGERS Samsung Galaxy SIII LTE SGH-i747M running Jelly Bean 4.1.1 has a lock screen bug! I have been googling around the web, but still couldnt find anyone with the bug I am having right now, so i am asking for someone to plz help me out here! The bug just started today, my phone is set to "Swipe" mode on the lock screen, so usually I would just need to swipe my screen to unlock my phone, but today, when i press my power button OR home button, my phone turned on, and showed my lock screen for 1 second, and it unlocked by itself. I didnt have to swipe or anything, all i did was pressed my power button OR home button, and it unlocked by itself. I know this is just a minor problem, but it is so annoying! I am sorry if i dont make any sense, because its hard to explain the situation I am having, but plzzz someone help me out here!
Thanks!!!
Cheers!:fingers-crossed:
Click to expand...
Click to collapse
Goto settings >security and check what they are set at under lock screen. Less security than swipe is none, which means once it wakes up you are on the home screen.
Sent from my SGH-I747 using xda app-developers app
KorGuy123 said:
Goto settings >security and check what they are set at under lock screen. Less security than swipe is none, which means once it wakes up you are on the home screen.
Sent from my SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
But the problem i am having is that, mine is set at "Swipe", and before the bug happened, i can swipe my screen and unlock, but now, all i have to do is just turn on the screen with power or home button and my lock screen wall paper will show up and then half a second after, it will unlock to my home screen by itself, and it wont let me swipe.
The above bug happens to me sometimes. I then switched to using a pattern on my lock screen.
If I leave the phone unattended sometimes for a few hours, when I "wake" it, it reverts to a "swipe" to unlock instead of my pattern of password that was set. My phone is stock 4.1.1 and not rooted.
Anonymously_Unknown said:
The above bug happens to me sometimes. I then switched to using a pattern on my lock screen.
If I leave the phone unattended sometimes for a few hours, when I "wake" it, it reverts to a "swipe" to unlock instead of my pattern of password that was set. My phone is stock 4.1.1 and not rooted.
Click to expand...
Click to collapse
So i am guessing theres no solution : / Have you tried restoring your phone?
galaxysthree said:
So i am guessing theres no solution : / Have you tried restoring your phone?
Click to expand...
Click to collapse
I've already restored my phone already (for other reasons), but it didn't work.
Anonymously_Unknown said:
I've already restored my phone already (for other reasons), but it didn't work.
Click to expand...
Click to collapse
So i am guessing it is hardware problem then eh : / guess i'll go get my phone checked out, i'll update you after if you want. Guessing only 2 people replied to this post, i prob wont find a solution lol.

[Q] [Help] Screen Backlight issue (I think software)

Hello there
I am currently having an issue with my Optimus G screen. When i rebooted the phone / power off, the backlight won't turn on. But after a few tries / sometimes even just clicked the power button to wake it up after waiting for few minutes, the backlight goes to normal (and if i never power off this thing then the issue seems to disappear). I believe this is a software issue. I am currently running on LG stock software.
Does anyone know how to fix this problem or at least tell me the method to be able to get the backlight back always? I don't wanna always face this issue if i power off this thing.
FYI, when the backlighting is not on i have tried to scroll the screen brightness to the max from settings but to no avail. Only with keep re-trying to power up for few times then i am able to get the backlight back on.
Thanks in advance!
I have the same problem... You fixed that ?
antztheman said:
Hello there
I am currently having an issue with my Optimus G screen. When i rebooted the phone / power off, the backlight won't turn on. But after a few tries / sometimes even just clicked the power button to wake it up after waiting for few minutes, the backlight goes to normal (and if i never power off this thing then the issue seems to disappear). I believe this is a software issue. I am currently running on LG stock software.
Does anyone know how to fix this problem or at least tell me the method to be able to get the backlight back always? I don't wanna always face this issue if i power off this thing.
FYI, when the backlighting is not on i have tried to scroll the screen brightness to the max from settings but to no avail. Only with keep re-trying to power up for few times then i am able to get the backlight back on.
Thanks in advance!
Click to expand...
Click to collapse
Do a factory reset after a backup.
I did a factory reset and backup but not help It's still the same...
Wysłane z mojego LG-E975 za pomocą Tapatalk 2
kafarix said:
I did a factory reset and backup but not help It's still the same...
Wysłane z mojego LG-E975 za pomocą Tapatalk 2
Click to expand...
Click to collapse
Flash stock firmware is last hope of it is software related problem.
Solved
antztheman said:
Hello there
I am currently having an issue with my Optimus G screen. When i rebooted the phone / power off, the backlight won't turn on. But after a few tries / sometimes even just clicked the power button to wake it up after waiting for few minutes, the backlight goes to normal (and if i never power off this thing then the issue seems to disappear). I believe this is a software issue. I am currently running on LG stock software.
Does anyone know how to fix this problem or at least tell me the method to be able to get the backlight back always? I don't wanna always face this issue if i power off this thing.
FYI, when the backlighting is not on i have tried to scroll the screen brightness to the max from settings but to no avail. Only with keep re-trying to power up for few times then i am able to get the backlight back on.
Thanks in advance!
Click to expand...
Click to collapse
I tested all roms for e975 . backlight working only Epsilon , Pacman 4.3 and Omni rom 4.4. Try it's working!
any updates for other people having this trouble?
Seem to be a weakness for LG phones...
Did someone fix this backlight bug?

Low screen problems

I have this E980 G pro and I cant use the soft keys (Back & menu keys), I never dropped the phone and its not cracked, so I dont know why this happens, also sometimes the screen stops responding and I have to turn off screen and turn it on again to use the touch, also the phone goes crazy and starts vibrating by using soft keys but im not touching the phone lol, I wiped the phone, i changed the rom and still happening, I dont know what to do...
So, I need to buy another screen?
Zero_Lord said:
I have this E980 G pro and I cant use the soft keys (Back & menu keys), I never dropped the phone and its not cracked, so I dont know why this happens, also sometimes the screen stops responding and I have to turn off screen and turn it on again to use the touch, also the phone goes crazy and starts vibrating by using soft keys but im not touching the phone lol, I wiped the phone, i changed the rom and still happening, I dont know what to do...
So, I need to buy another screen?
Click to expand...
Click to collapse
i think u can flash new rom or press 3845#*980# (LG G pro ATT )
dinhluan92 said:
i think u can flash new rom or press 3845#*980# (LG G pro ATT )
Click to expand...
Click to collapse
I flashed Telcel rom and it worked... by one night lol, at next morning after using the phone 10 minutes the problem has come back, what I can do in that menu?
What settings I should use?
no answer?
It really sounds like a hardware issue to me.
Daved+ said:
It really sounds like a hardware issue to me.
Click to expand...
Click to collapse
So I opened the phone, no corrosion, no damage, I dont know why the hell is happening this lol, but sometimes when I touch the soft keys It work, and works by a couple minutes (or secs ) but the problem comes again, what part I should buy? I dont think the screen cause the soft keys are not part of screen, but anyone knows? PLS HELP!!!!!

[Q] Bug on 4.1.2

Hi guys, I have an optimus g e975 running stock 4.1.2 here, and I'm waiting for the official KitKat update but have anyone of you encountered the problem that when you long hold the power button on the phone, the reboot menu does not show up? My power button works, but only to lock the phone and restarting the phone is impossible cause I can't long press the power button. Anyone else encountered this problem and anyway to solve it? This problem occurs randomly and sometimes the reboot menu shows up, sometimes it doesn't.
mrdevil75 said:
Hi guys, I have an optimus g e975 running stock 4.1.2 here, and I'm waiting for the official KitKat update but have anyone of you encountered the problem that when you long hold the power button on the phone, the reboot menu does not show up? My power button works, but only to lock the phone and restarting the phone is impossible cause I can't long press the power button. Anyone else encountered this problem and anyway to solve it? This problem occurs randomly and sometimes the reboot menu shows up, sometimes it doesn't.
Click to expand...
Click to collapse
hold the power button for 10 seconds. The phone will turn off. turn it on to see if it works or not. If not, do a factory reset. That'ss all you can do.
akahroba said:
hold the power button for 10 seconds. The phone will turn off. turn it on to see if it works or not. If not, do a factory reset. That'ss all you can do.
Click to expand...
Click to collapse
Thank you so much for this information! Worked out for me thanks again!!
Ya.... It happens wit me too...if i didn reboot mobile fa some 5 days, this issue reappears....
Sent from my LG-E975 powering Stock 4.1.2

[Q] Home button will not wake phone.

I recently did a factory reset on a rooted G Pro but now the power button will not wake the phone. Everything else works fine and the home button works when the phone is already awake but will not wake the phone. This is still the stock ROM with nothing but root done to it. I can't anything about this exact problem and the threads I have found that were close to the same problem didn't shed any light on it. Can anyone please help?
did u disable screen lock services?
Proz00 said:
did u disable screen lock services?
Click to expand...
Click to collapse
Had not intentionally, but it's possible one of the mods installed had. I did a software update and it all started working again. Thanks for trying to help anyway!

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