Develop Bugs

[Q] screenburn

Help. I havr a screenburn on my lg g4 .
I use the opera browser. And the buttons are visseble while typing.
So i called my provider. They gona replace the device .
But why? this is a new phone uplauding pictures right now
Opera browser
https://onedrive.live.com/redir?res...authkey=!AO32iSIcJ4VDqVg&v=3&ithint=photo,JPG
burn in pictures
https://onedrive.live.com/redir?res...authkey=!AGZGMi2o3waD0wY&v=3&ithint=photo,JPG
https://onedrive.live.com/redir?res...authkey=!AEOft-Uq3x84f9g&v=3&ithint=photo,JPG
[https://onedrive.live.com/redir?res...authkey=!ACZ5r0vDo5AW-oU&v=3&ithint=photo,JPG

That burn in is really bad. It's got to be a problem with your screen, and not common to all G4s or we'd be seeing others complaining by now.
I've seen phones that bad in stores, but their screens are on all the time. How much screen time have you had with Opera running?
Good thing the provider is replacing it!

phineous said:
That burn in is really bad. It's got to be a problem with your screen, and not common to all G4s or we'd be seeing others complaining by now.
I've seen phones that bad in stores, but their screens are on all the time. How much screen time have you had with Opera running?
Good thing the provider is replacing it!
Click to expand...
Click to collapse
hmm not that long troug. if i use opera a while not it disappears almost completely.
use it agian 2 minutes. its bck
and restarting my phone does not help.
removing opera does also not help.
if i got my new phone no opera anymore.

I just can't believe that's from Opera alone. There had to be a problem with the LCD in your phone.
I understand if you don't want to risk it by using Opera anymore but I don't think it'll happen with your new phone.

robdgekke said:
hmm not that long troug. if i use opera a while not it disappears almost completely.
use it agian 2 minutes. its bck
and restarting my phone does not help.
removing opera does also not help.
if i got my new phone no opera anymore.
Click to expand...
Click to collapse
Lcd on mobile phones normally never get burnins, it's an amoled thingy (samsung phones) and it's an important reason I wont get a note 4 but a G4, so I really hope it was a single defective screen.
Did you try one of the screen retention fix app?
Did you try a factory reset? Call me crazy but it's not normal that a screen burnin doesn't affect white pixels, and it shouldn't do a green stuff, it could be a crazy bug
Sent from my HTC One M9 using XDA Free mobile app

vegetaleb said:
Lcd on mobile phones normally never get burnins, it's an amoled thingy (samsung phones) and it's an important reason I wont get a note 4 but a G4, so I really hope it was a single defective screen.
Did you try one of the screen retention fix app?
Did you try a factory reset? Call me crazy but it's not normal that a screen burnin doesn't affect white pixels, and it shouldn't do a green stuff, it could be a crazy bug
Sent from my HTC One M9 using XDA Free mobile app
Click to expand...
Click to collapse
yes i did try all of that.
did not help at all!
i got my replacement phone now. i am happy with it..
still really strange...

I just noticed a burn in My lg g4 also

So now its becoming more common is it
Sent from my LG-H815 using Tapatalk

robdgekke said:
Help. I havr a screenburn on my lg g4 .
I use the opera browser. And the buttons are visseble while typing.
So i called my provider. They gona replace the device .
But why? this is a new phone uplauding pictures right now
Opera browser
https://onedrive.live.com/redir?res...authkey=!AO32iSIcJ4VDqVg&v=3&ithint=photo,JPG
burn in pictures
https://onedrive.live.com/redir?res...authkey=!AGZGMi2o3waD0wY&v=3&ithint=photo,JPG
https://onedrive.live.com/redir?res...authkey=!AEOft-Uq3x84f9g&v=3&ithint=photo,JPG
[https://onedrive.live.com/redir?res...authkey=!ACZ5r0vDo5AW-oU&v=3&ithint=photo,JPG
Click to expand...
Click to collapse
mate this not burn in....This lcd backlight leak .Go to service.

kabirjedi said:
mate this not burn in....This lcd backlight leak .Go to service.
Click to expand...
Click to collapse
That's not "backlight leak" or "light bleed" as it's generally called. It's a bad LCD panel.
FYI This is how light bleed on the G4 can look like (It's mine).

I have a new device. So it's solved. But I see more people getting problems with the screen.

That's more likely to be just image retention and not an actual burn in.
Burn in = actual damage since the material gets burnt out than the rest of the other materials in the screen.
Image Retention = the liquid crystals on the LCD haven't fully returned to their original state for the meantime only.
A burn in commonly happens on crt, plasma, oled screens. For the reason that these technologies "burn" a specific material on their screen to produce output. LCD screens like IPS are very less likely to have burn ins but image retention is always possible but not permanent.

rvnlvrz said:
That's more likely to be just image retention and not an actual burn in.
Burn in = actual damage since the material gets burnt out than the rest of the other materials in the screen.
Image Retention = the liquid crystals on the LCD haven't fully returned to their original state for the meantime only.
A burn in commonly happens on crt, plasma, oled screens. For the reason that these technologies "burn" a specific material on their screen to produce output. LCD screens like IPS are very less likely to have burn ins but image retention is always possible but not permanent.
Click to expand...
Click to collapse
So is image retention common, because I've never had this problem until I got the G4 which is my first flagship: every other phone I've had was a budget and never had a problem like this.

I've never had image retention or burn in on any of my LCD phones but have had it on all my OLED/AMOLED phones.

F1Fanatic27 said:
So is image retention common, because I've never had this problem until I got the G4 which is my first flagship: every other phone I've had was a budget and never had a problem like this.
Click to expand...
Click to collapse
LG used this "Quantum Display" of theirs (A modified type of IPS LCD) which had a different arrangement of pixels and whatnots which would have likely been the reason why image retention was much more common on theirs than other manufacturers' IPS displays, but in return.. the color gamut of their display actually expanded in range and also provided less energy consumption.

Same here LG G4 "screen burnes" all the time!!! - previous screens stay faded over current screens, just like on my old plasma TV... WTF???

I don't know what is screenburn but sometimes I see vertical narrow black stripes popping for a second in the same place, any thoughts what this can be? Is that a faulty display or some software bug, anyone had this issue?

What did other people who had this issue?
Now I'm also having it. Own the phone since ~11month. I recognized it 2 weeks ago, researching the problem. Before I though it would be a graphic error.
Have the plan to write LG about my issue. But have rooted the phone the official way. I must lookt at the LG root condition, I think this is still covered by waranty even with root because of HW issue not caused by root.
BR

I had a image retention issues on my screen (few months ago came from service for bootlooping) AND I have bootloader officially unlocked. And they still changed my display. But I live in Finland EU and we have this mandatory 2 years warranty regardless of rooting the device. Only if they can proof that rooting caused the device to broke then its not covered by this mandatory manufacturer independant warranty.
But image retention or bootlooping aint such a case and they replaced my MB and now my screen.

It just shows how **** the G4 is in case of build quality, I have experienced screenburn and I'm after a bootloop issue as well, so glad my OnePlus 3 is coming at Monday. G4 has a great development and thats why I love it I wouldn't buy ever again.

Maybe another Touchscreen issue, Please Help, urgent

Hi,
yesterday I bought a G4 H815.
I have the following problem: If my phone is on the bed next to me, or lying on a table, the touchscreen response is terrible. If I'm holding it in my hand, there's no problem. If it's charging and so lying on the bed, there's no problem either. It sucks when scrolling on Facebook (it doesn't scroll sometimes, but opens something instead, sharing, commenting etc), when typing a message, and even when waking up the screen with double knock.
I searched a bit on the internet and I found a guy, who had a problem like this but with another phone. He had a grounding issue after having the touch screen changed.
What could be the problem here? Maybe grounding, or some kind of isolation is faulty? Or is it the ISSUE everyone is having?
I bought the phone yesterday, so I'd like to send it back to get a new one, but the shop tells me it's not a "problem" because a bunch of lg g4 users have this problem and a new update from LG will fix it..
But I don't think it's the same thing. What do you say?
What I don't get is that it's only producing the problem while lying on a flat surface (table, bed - the phone is lying still, that's not a problem), but when I hold it, or plug it into the wall, it's perfect. That's why I would think it's some kind of grounding issue, although I'm totally not competent in electricity.
I opened the service menu, dialing 277634#*# and I did it there:
I took a few photos with my Optimus Black, since I could't take any screenshots of the issue:
this is with my phone lying on the bed:
and here holding it in my hands, producing no problems at all.

Send it back and exchange the device.

Thanks, yesterday I've sent it back. I'm waiting now for a new one... I hope that the will send me one quickly.
I made videos of the problem..
lying on the bed, the touch screen responds very poorly:
https://www.youtube.com/watch?v=O5qXlcDKqL8
lying on the bed while chargig, no problems..:
https://www.youtube.com/watch?v=vDmg39JmojM
holding it in my hand, no problems here either:
https://www.youtube.com/watch?v=Cdcv9fpFJgg

Hi. I also bought a g4 and am having the same issue. Have you received your replacement? Does it work?

I had the same issue with a Galaxy S6... it's definitely a hardware issue.... get it replaced ASAP
Sent from my LG-H811 using Tapatalk

Seems like similar issue as mine. The members here claim that it may be due to the curvature of the phone.

Yup, you need to get a replacement.

I had this problem with my wife's phone and mine. but i changed to a different USB cable (not stock) and the problem does not appear!
Sent from my SM-G9250 using Tapatalk

Hi
Same here.. Im with the second lg g4 device after i replaced the first
with this issue.. u waste your time all the lg g4 devices
that i checked were with this issue.. the only hope is that its
softwere issue and new kernel or rom will fix it...
a lot of users here already report about this issue.
u need to learn to live with it or just to buy other phone and not the G4.

Blue screen after serious slow down

In case anyone else suffers the same symptoms - a couple of weeks ago, my G3 started running really slowly (and possibly a bit hotter).
Booting from cold seemed to take a long time and the ui starred freezing temporarily on a regular basis.
I was waiting for an ota marshmallow update and hoped that would fix whatever was making it go slow.
I was wrong.
The other night, I was using it and the screen went bright blue and the phone then started boot looping. Sometimes it only got as far as the LG logo and other times it for all the way to the lock screen (on a couple of occasions I could get to the desktop and use the phone 'normally'). Every time it ended up blue screening and then rebooting.
Ultimately, it was dead and despite managing a full wipe, nothing fixed it.
As a phone, when it worked it was ok but cracking screen, poor call quality (only realised that when I got a different phone) and general slow downs (possibly related to overheating (and I could only infrequently increase screen brightness to full because of the warning about overheating) means that I think this phone has been fair rather than excellent.

Its motherboard problem only way to fix it is replace it with new one
Sent from my LG-D855 using Tapatalk

That's what I thought. Phone is well over a year old, so just got a different one.
Good feedback for anyone who has similar symptoms.

I have the same problem, went to the LG service center in my country
and yes they said that I had to replace the motherboard, because the IC power is broken
the cost is around $160, 1/3 the phone price when I bought it mid 2014
I have only used my phone for only 1.5 years and very disappointed with the quality of G3 phone

same **** happened to me, they replaced the motherboard, luckily it was still under warranty.

Don't update its motherboard problem
Same here blue screen came and phone is dead. Gone to lg service center and they told to replace the motherboard yesterday.
The whole phone now only cost 1000AED and they are telling me that motherboard replacement is gonna cost me 950AED .what the heck, better to buy a new phone. Atleast i will get one yeAr warranty new phone for same cost hehe...
The updation of lg g3 software is the main reason for this, so dont update the phone to new version of android pls.

Sorry to unbury such an older thread.
I just got a new (sic) LG G3 D855. A few minutes after the official LG updates were installed, the screen began flickering, with intermediate blue screens, and consecutive reboots. After a BSOD the screen went dark, and the phone seemd to be powered off. I am not sure about this, but I could not power it on again for approx. 20 minutes. Then it was starting again, but I feel very uncomfortable about it and plan to ask for a replacement, since I have full warranty.
Before I return it:
How to I find out the manufacturing year of the motherboard and/or if there is a newer revision or something? Is it printed on the motherboard or readable via an app (e.g. CPU-Z or similar - if I can start it at all)?
Any help in this regard is very much appreciated. Thank you.
Wishing you all a great year 2020!

Problem with screen flickering

Hello. I start writes at the beginning of what the problem is. My G3 is very unlucky. Underwent operations 3 exchanges panel (display + touch). After the final exchange of the phone came two days after what appeared screen flickering. Having traced the various forum decided according to the recommendations of users heating the main processor. Not happily operation failed. The phone does not respond to anything. Now I have a chance at a low cost to get a G3 with a broken touch to transplantation motherboard. Only now is the question. Is it really the problem lay in the motherboard whether there is a possibility that the display itself is defective. Sorry for a bad English. Thank you gentlemen for your interest in the subject and I hope that you will help me with this problem. At the end I might add, with the phone still went smoothly in the display white spots. Have a nice day guys!

yes the problem is in the motherboard -- the SOC heat cause that issue

So the change of the motherboard will fix it ?

Okey tommorow or later arived to me brake screen g3 and i swipe motherboard and type there result thanks again for yours interesting this thread.

It's either a:
A) Dying battery
B) Bad screen or not a proper connection
C) Motherboard
I would check the screen and battery first as they were the first tampered with.
Taking the motherboard from another G3 is a good plan. You can also try applying a thermal pad to the back plate.
And for ****s sake, for the 1000th time:
DO NOT PUT YOUR MOTHERBOARD IN THE OVEN.
And expect a repair that is... As a means to try to boot it up for a couple of minutes to backup your data, sure, suit yourself.

If it is the same problem that others describe it is probably the motherboard. I just bought a new one and replaced mine. Like a new phone now. You can read my comment on another thread here for more details.

Chinese refusbished LG G4 with bootloop problems

A while ago I had the bad idea of buying a refurbished G4 H818p on a chinese store. It was so cheap I couldn't be happier when it arrived and it apparently worked like new.
A month later I had to read a lot about bootloop and how to fix it as the phone suddenly stopped working.
I managed to disassemble the phone and I found that a new dissipator was applied to the main board but the quality was so low the whole repair lasted just one month. I tried to fix it with some new pieces of copper and thermal paste but it didn't work. So I went to the software solution and applied a tot file that made my phone to not use two cores. The phone resurrected but now I have some random green points on the screen after using it for a while (they are not dead pixels, as they change always) and many apps just crash after loading them the first time (they stay there if I load them three or more times). Are these problems related to the excessive temperature in the main board too?
Can I fix them too?
Thank you.