Database Users

Major Screen Issue's, see photo

G2 has been acting very odd recently, the entire screen would start to shake/flicker with color distortion, it would stop when I flipped open the keyboard.
However, now it has gotten much worse.
Attached is a photo of the screen now when its powered on....
It is out of warranty, any tips on what could be causing it?

Sounds to me like a loose ribbon cable :/ if it is just loose and not broken you may be able to open up your phone an reattach it (depending on how comfortable you are with that stuff)

X2 in the ribbon cable first place to check. Try fussing with out to see if it responds before opening her up

killj0y said:
X2 in the ribbon cable first place to check. Try fussing with out to see if it responds before opening her up
Click to expand...
Click to collapse
That's the cable between the phone and the screen.
Had the same problem before, only mine was in warranty.

[Q] Screen flickering, what should I change? Screen or Motherboard?

Hi guys, if someone here suffered from this kind of flickering >>VIDEO LINK.
How do you managed to fix it? What part did you change, the screen or the motherboard? Thanks. Really need some help. My phone now is unusable.
]]]]]] UPDATE 1[[[[[[[
Hi guys, just got my G2 back from the dead.
I send my G2 to a phone care in the city and they said my lcd is the problem, they changed the lcd+digitizer (the whole half of my G2 )and now the problem is gone. But When I got home I noticed vertical lines on my G2 when it is turned off, not really noticeable but if you look closely you can see the vertical lines and thinking that they change it with a low quality LCD. Even in white backgrounds you can see the lines but only if you have a clear eyes . I compared it to the original LCD and I don't see any vertical lines at all, it's all black. But the frame of the new lcd is solid like the original. So, in the future, will this new LCD survive or should I go the phone care again? Thanks!
***********UPDATE 2************
[UPDATE]
I think my G2 is working now after playing games for hours in 5 days, no flickering/stuttering/jittering noticed.
But, my IMEI was change and it was rooted jellybean when they give it to me. I don't know if they change the motherboard or the whole phone except for the body case and the new screen i purchased. I asked them about the changes of the phone because it's my second time returning the phone and the women on the counter said their tech just adjust something. I don't believe that, and then I saw the IMEI changed. I didn't ask why my IMEI was change, i'll wait til something goes wrong on my G2 and sue them. LOL.
I have some questions regarding this.
1) I'm not really sure if how an IMEI was change, is it for changing the motherboard?
2) Is it legal that they don't tell me what they change on my phone?
For now my G2 is still alive and no problem after upgrading to lollipop + root + twrp. Hope it goes all well now.

coowkeee said:
Hi guys, if someone here suffered from this kind of flickering >>VIDEO LINK.
How do you managed to fix it? What part did you change, the screen or the motherboard? Thanks. Really need some help. My phone now is unusable.
Click to expand...
Click to collapse
i went to lg service and they changed some filters on motherboard in 2 hours filter,EMI/Power 2 quantity i read on the paper. i was on warranty..

That looks crazy, it definitely would be a motherboard issue, or, I had a simliar issue while repairing them (I've re-sold about 20 of them) the flex ribbon sometimes gets dirty, or out of place(the one on the bottom under the speaker). You have to remove the back, then remove the speaker(6 screws I believe on the bottom, it;s an L shape). Once you do that, make sure the square flex cable is connected well, and there is nothing touching the circuit right under it(It has a plastic tape to keep it from touching).
The connector I'm referring to is right next to the USB one on the flex. For obvious reasons I got the image from ETrade supply. You can clean the connectors with 91% or higher alcohol, DO NOT use anything less.

OverClockeD_GR said:
i went to lg service and they changed some filters on motherboard in 2 hours filter,EMI/Power 2 quantity i read on the paper. i was on warranty..
Click to expand...
Click to collapse
I think i'm out of warranty because i bought it when it was newly released. Do you think lg sc will fix it by paying them cash?

Silentwidow said:
That looks crazy, it definitely would be a motherboard issue, or, I had a simliar issue while repairing them (I've re-sold about 20 of them) the flex ribbon sometimes gets dirty, or out of place(the one on the bottom under the speaker). You have to remove the back, then remove the speaker(6 screws I believe on the bottom, it;s an L shape). Once you do that, make sure the square flex cable is connected well, and there is nothing touching the circuit right under it(It has a plastic tape to keep it from touching).
The connector I'm referring to is right next to the USB one on the flex. For obvious reasons I got the image from ETrade supply. You can clean the connectors with 91% or higher alcohol, DO NOT use anything less.
Click to expand...
Click to collapse
Ok, thanks for the tip. Will try to clean it tom and update here. Do you think smoking in front of the phone makes it dirty?

they told me that it may happen cause of heat..and its common issue
dunno really happened to me after i flashed some loli roms.... and ye im sure they will fix but they will ask 100euro+ for sure.....
imagine even the girl that works there told me her screen starts doing it ..

Silentwidow said:
That looks crazy, it definitely would be a motherboard issue, or, I had a simliar issue while repairing them (I've re-sold about 20 of them) the flex ribbon sometimes gets dirty, or out of place(the one on the bottom under the speaker). You have to remove the back, then remove the speaker(6 screws I believe on the bottom, it;s an L shape). Once you do that, make sure the square flex cable is connected well, and there is nothing touching the circuit right under it(It has a plastic tape to keep it from touching).
The connector I'm referring to is right next to the USB one on the flex. For obvious reasons I got the image from ETrade supply. You can clean the connectors with 91% or higher alcohol, DO NOT use anything less.
Click to expand...
Click to collapse
Boom!!!!!
What he said

tiguy99 said:
Boom!!!!!
What he said
Click to expand...
Click to collapse
Now, I'll definitely try it. Watching some disassemble videos now. Hope it works. :angel: :angel: :angel:

coowkeee said:
Now, I'll definitely try it. Watching some disassemble videos now. Hope it works. :angel: :angel: :angel:
Click to expand...
Click to collapse
When you replace your lcd they always tell you to make sure you have both connectors securely in place above the usb connector. One of them is the ground connection to your LCD!
Make sure both are fastened correctly and test before you seal your phone back together.
Keep us posted

Silentwidow said:
That looks crazy, it definitely would be a motherboard issue, or, I had a simliar issue while repairing them (I've re-sold about 20 of them) the flex ribbon sometimes gets dirty, or out of place(the one on the bottom under the speaker). You have to remove the back, then remove the speaker(6 screws I believe on the bottom, it;s an L shape). Once you do that, make sure the square flex cable is connected well, and there is nothing touching the circuit right under it(It has a plastic tape to keep it from touching).
The connector I'm referring to is right next to the USB one on the flex. For obvious reasons I got the image from ETrade supply. You can clean the connectors with 91% or higher alcohol, DO NOT use anything less.
Click to expand...
Click to collapse
tiguy99 said:
When you replace your lcd they always tell you to make sure you have both connectors securely in place above the usb connector. One of them is the ground connection to your LCD!
Make sure both are fastened correctly and test before you seal your phone back together.
Keep us posted
Click to expand...
Click to collapse
Cleaned all the connectors and securely placed it well, but nothing happens. I think it really needs a change parts.
Thank you anyway.

OverClockeD_GR said:
they told me that it may happen cause of heat..and its common issue
dunno really happened to me after i flashed some loli roms.... and ye im sure they will fix but they will ask 100euro+ for sure.....
imagine even the girl that works there told me her screen starts doing it ..
Click to expand...
Click to collapse
I think we have the same cause of the problem. :/ First I have the yellow spots then this happens. :/
Will go to service center after I worked for cash, lol.

coowkeee said:
I think we have the same cause of the problem. :/ First I have the yellow spots then this happens. :/
Will go to service center after I worked for cash, lol.
Click to expand...
Click to collapse
Please keep us posted on the results after you get the new screen.
Share your thoughts on this thread
http://forum.xda-developers.com/lg-g2/help/screen-flickering-change-screen-t3069110

tiguy99 said:
Please keep us posted on the results after you get the new screen.
Share your thoughts on this thread
http://forum.xda-developers.com/lg-g2/help/screen-flickering-change-screen-t3069110
Click to expand...
Click to collapse
Hi guys, just got my G2 back from the dead.
I send my G2 to a phone care in the city and they said my lcd is the problem, they changed the lcd+digitizer (the whole half of my G2 )and now the problem is gone. But When I got home I noticed vertical lines on my G2 when it is turned off, not really noticeable but if you look closely you can see the vertical lines and thinking that they change it with a low quality LCD. Even in white backgrounds you can see the lines but only if you have a clear eyes . I compared it to the original LCD and I don't see any vertical lines at all, it's all black. But the frame of the new lcd is solid like the original. So, in the future, will this new LCD survive or should I go the phone care again? Thanks!
I hope someone here share their experience on their 2nd LCD. Thanks!

:crying: :crying: :crying:
[UPDATE]
After few days of youtube and playing games, my phone started stuttering/flickering again like on my first post -_-
I paid for the new LCD that they change, should I pay another bucks for the motherboard problem? or they'll give me a refund for the new LCD I bought that didn't fix my problem? Please someone reply me asap. Thanks

This error is on mainboard. Fix it is very simple. I has lot about 10$ for this solution.sorry bbecause my english's bad.

[UPDATE]
I think my G2 is working now after playing games for hours in 5 days, no flickering/stuttering/jittering noticed.
But, my IMEI was change and it was rooted jellybean when they give it to me. I don't know if they change the motherboard or the whole phone except for the body case and the new screen i purchased. I asked them about the changes of the phone because it's my second time returning the phone and the women on the counter said their tech just adjust something. I don't believe that, and then I saw the IMEI changed. I didn't ask why my IMEI was change, i'll wait til something goes wrong on my G2 and sue them. LOL.
I have some questions regarding this.
1) I'm not really sure if how an IMEI was change, is it for changing the motherboard?
2) Is it legal that they don't tell me what they change on my phone?
For now my G2 is still alive and no problem after upgrading to lollipop + root + twrp. Hope it goes all well now.

Hi guys, i have a similar problem. I bought a new lcd on aliexpress.....that is the video of the problem....
http://www.mediafire.com/watch/glzqihgdzz12jsj/Lgg2_lcd.mp4
The strange thing is , not in every operation make the same problem. after days i see that problem usually on facebook and a lot on clash of clans .
I make also a screenshot on the clash of clans and when i open the picture the screen flickering .....
its like when the phone show some combination of color make this problem

My Lg PRO 2 Phablet did the same from first turn on, flickering on and off, very dissapointed as i had mine direct from Hong Kong and couldnt send it back. What i did was to tak all of the screws out and take the plastic back off, then re fitted the back only, no screws and turned on, no more flickering. Then i put a couple of screws in and tried again, still no flicker, then after a couple of more screws by the sim socket it started to flicker again! Now i just run the phone minus a few screws, it must be a pressure thing!

Hi, i have exactly the same problem, specially in combination of colors (green red and blue most of the time). how did you manage to fix your phone ? did you change the mainboard ? thanks for your help.

Benz83 said:
Hi guys, i have a similar problem. I bought a new lcd on aliexpress.....that is the video of the problem....
The strange thing is , not in every operation make the same problem. after days i see that problem usually on facebook and a lot on clash of clans .
I make also a screenshot on the clash of clans and when i open the picture the screen flickering .....
its like when the phone show some combination of color make this problem
Click to expand...
Click to collapse
Hi, i watched your video, and i have exactly the same problem, specially in combination of colors (green red and blue most of the time). how did you manage to fix your phone ? did you change the mainboard ? thanks for your help.

Phone screen blacks out for no reason

I have a issue that has perpetually got worse as time goes on. My screen will just black out for no reason, usually only comes back with a battery pull. Occasionally it will turn back on if I press the sides which made believe it was the connector so I took the back off and disconnected the screen cable and reconnected it. Problem still continues. Tried safe mode in case it was an app, still happening. BTW when this happens my lights on my buttons still light up but as the screen is unresponsive I end up having to pull the battery and usually that works (sometimes takes more then once to do it) Other then that the phone works fine. This happens minimum 3 times a day. And lastly if the screen needs to be replaced, what's that run cost wise? Or can just a cable be replaced? Or could it be a charge port issue?
Sent from my SM-N900V using XDA Free mobile app

Sounds like it's locking up rather than the screen turning off. Try this.. Next time the screen goes dark, get on another phone and try to call your phone. See if the call goes thru and if your note rings and if the screen comes on.
Sent from my SM-N900V using Tapatalk

donc113 said:
Sounds like it's locking up rather than the screen turning off. Try this.. Next time the screen goes dark, get on another phone and try to call your phone. See if the call goes thru and if your note rings and if the screen comes on.
Click to expand...
Click to collapse
Call goes through, screen stays off

MACHEK said:
Call goes through, screen stays off
Click to expand...
Click to collapse
I doubt it's the screen itself, but it does sound like a loose connection. To check this, if possible, instead of pulling the battery, I would push on the circuit board with a plastic or wooden toothpick. See where, if anyplace, it turns back on. Then, I would partially disassemble the phone, insure all the ribbon connectors were clean and properly seated and that all screws were "firm" (don't overtighten them).
The other possibility is a cracked circuit board.
Sent from my SM-N900V using Tapatalk

donc113 said:
I doubt it's the screen itself, but it does sound like a loose connection. To check this, if possible, instead of pulling the battery, I would push on the circuit board with a plastic or wooden toothpick. See where, if anyplace, it turns back on. Then, I would partially disassemble the phone, insure all the ribbon connectors were clean and properly seated and that all screws were "firm" (don't overtighten them).
The other possibility is a cracked circuit board.
Click to expand...
Click to collapse
I have taken it apart, the connection onto the board is fine but I'm not sure about the connection to the screen itself because that's further in there

MACHEK said:
I have taken it apart, the connection onto the board is fine but I'm not sure about the connection to the screen itself because that's further in there
Click to expand...
Click to collapse
Well... If it comes back on via squeezing the sides (or shaking it, tapping on it, etc) then it's definately a loose or cracked connection. Unfortunately, they're a real pain to locate exactly. And if it's a cracked circuit board, it can't be fixed.. Just replaced.
It may be worth your while to just replace the whole phone. On eBay, "refurbished" N900V's go for $90 to $125 while new screens/digitizers are about the same price.
Some claim new note 3's N900V (Verizon) for $230.
Don
Sent from my SM-N900V using Tapatalk

Half Static Screen - Connector Not Loose

Hello, I have had my Axon 7 for just over a year and two days ago the screen went suddenly half static despite the touch still working perfectly. I looked up the issue and saw that this is pretty common and that my display connector was probably loose, so I opened up the phone to make sure the connector was fully connected. Well, I booted the phone and the static was still there, so I unplugged and reattached the connector, but that didn't help either.
Given that ZTE is bankrupt and my phone is out of warranty, is there anything else I can try at home to fix this or is my phone screen just dead? I'm in California, is there anyone who could possibly fix it in the state?
Thanks for your time!

Try pushing the connector down while it's booting and see if that fixes it.

greencartim said:
Try pushing the connector down while it's booting and see if that fixes it.
Click to expand...
Click to collapse
Alright, I'll try that. If it needs constant pressure I'm probably going to need to glue it or something?

DJRX8000 said:
Alright, I'll try that. If it needs constant pressure I'm probably going to need to glue it or something?
Click to expand...
Click to collapse
Tape could also work. I added tape to my back up Axon so it doesn't happen again. You could also add something so the frame can push against the connector.

Hey, unfortunately, pressing on the connector doesn't change anything with the screen. I even tried disconnecting it and cleaning out the contacts with a can of compressed air. None of this helped.
What are my next steps? I'd really love to get this phone working again.
Thanks!

Probably playing with the wrong connector, the half static screen is common problem, ZTE repaired mine a month ago as they are still actually operating. They said it was a connector and that they put something in there to make sure it doesn't move again.

trevor68 said:
Probably playing with the wrong connector, the half static screen is common problem, ZTE repaired mine a month ago as they are still actually operating. They said it was a connector and that they put something in there to make sure it doesn't move again.
Click to expand...
Click to collapse
Hey, that's possible, though when I unplug this connector the screen goes completely dead. Here's an annotated image of the connector I've been messing with and the foam pad that was installed on the back of the phone, I believe to keep it in place (my phone was bought in March 2017).
https://imgur.com/0d7C2xc <- That's an Imgur link to the photo, I can't seem to get it to show up as a hyperlink or embed it into the post.
Is this the wrong connector?
Thanks!

Yep that's the connector. I'm sorry to say but it looks like the screen is toast. I seen some Samsung Galaxy S7's that have the same issue but couldn't be fixed without a new screen. And since the Axon uses a Samsung screen, that might be the issue.

greencartim said:
Yep that's the connector. I'm sorry to say but it looks like the screen is toast. I seen some Samsung Galaxy S7's that have the same issue but couldn't be fixed without a new screen. And since the Axon uses a Samsung screen, that might be the issue.
Click to expand...
Click to collapse
Is there a place to get Axon 7 parts? I am not planning on using it as my main phone again, but if I could get a working screen I think I'd use the phone for something else. Are there any other screens that use this connector?

DJRX8000 said:
Is there a place to get Axon 7 parts? I am not planning on using it as my main phone again, but if I could get a working screen I think I'd use the phone for something else. Are there any other screens that use this connector?
Click to expand...
Click to collapse
Aliexpress has screens for sale, they came down in price the last time I checked.

Digitizer issue after battery replacement

Hi all. I replaced my battery, put the phone back together, and turned it on. Everything looked fine until I tried to use the touchscreen. It wouldn't register any touch. I figured I messed up the screen somehow when removing it, so I ordered a replacement screen - touch doesn't work with that either! Does anyone have a suggestion for what might be wrong?

Valicore said:
Hi all. I replaced my battery, put the phone back together, and turned it on. Everything looked fine until I tried to use the touchscreen. It wouldn't register any touch. I figured I messed up the screen somehow when removing it, so I ordered a replacement screen - touch doesn't work with that either! Does anyone have a suggestion for what might be wrong?
Click to expand...
Click to collapse
Not to ask the stupid question...
Is the ribbon for the screen in the slot correctly? Seated all the way? Locked in place by that whatever the hell it is?

Thank you for your reply. Yes I have, it is screwed it and I've even tried pressing it down and touching it to see if it helps.

Valicore said:
Does anyone have a suggestion for what might be wrong?
Click to expand...
Click to collapse
I have replaced the cracked screen on my PH-1 without issues... Since you are seeing the same problem with TWO different screens, I would check the connector on the board. Could be something like small piece of debris or dust or whatever. Remove the cable, and try inspecting it with a magnifying glass, if you can. Might be able to use a wooden toothpick to *carefully* clean it up, but I would only recommend that if you can actually see it well. You could also just blow a couple of shots of compressed air into it.
Other than that, I have no ideas, sorry...

Valicore said:
Thank you for your reply. Yes I have, it is screwed it and I've even tried pressing it down and touching it to see if it helps.
Click to expand...
Click to collapse
might need a factory reset as this recilibrates the screen, back up ail your data first of course (pics, chats, game data etc). Not sure if recalibration apps still work, might be worth a shot first.

I had the same issue after replacing the screen. Someone on reddit mentioned the same problem and used a bit of foam behind the screen and its connection. I took a razor and trimmed a mm or two thick of some soft foam (used the foam that the screen was packaged in) and placed it over the connector. Touch was back after that, so it was an issue with the connection not being snug enough for me. Been over a month and everything is fine