Question Screen malfunction - Samsung Galaxy Z Flip 4

Hey Guys n' Gals!
Question, has anybody had their primary screen malfunction?
Now when I fold my phone either open or closed, the screen sometimes goes black. After 1-2sec the screen turns on again.
Sometimes the screen also flashes in a bright yellowish or green color when it is being folded.
Anyone have these symptoms? Any fix? or is it a hardware issue?

Thats is EXACT issue i had, i sent it in repair but they could not fix it... but instead put a diffrent firmware on it or something

FattoYosh said:
Thats is EXACT issue i had, i sent it in repair but they could not fix it... but instead put a diffrent firmware on it or something
Click to expand...
Click to collapse
Woah what?
different firmware? they did not change the screen?
Does your screen now work again with no issues?

BWA80 said:
Hey Guys n' Gals!
Question, has anybody had their primary screen malfunction?
Now when I fold my phone either open or closed, the screen sometimes goes black. After 1-2sec the screen turns on again.
Sometimes the screen also flashes in a bright yellowish or green color when it is being folded.
Anyone have these symptoms? Any fix? or is it a hardware issue?
Click to expand...
Click to collapse
Most likely a hardware problem. Could be a lose connection or something more serious. Did you drop your phone or something before this started?

Take it to warranty asap

TheMystic said:
Most likely a hardware problem. Could be a lose connection or something more serious. Did you drop your phone or something before this start?
Click to expand...
Click to collapse
Nope, I have not dropped the phone. It just started all of a sudden.

BWA80 said:
Nope, I have not dropped the phone. It just started all of a sudden.
Click to expand...
Click to collapse
You'll have to get it checked at a good service centre. Let's hope it is a minor issue.

FattoYosh said:
Thats is EXACT issue i had, i sent it in repair but they could not fix it... but instead put a diffrent firmware on it or something
Click to expand...
Click to collapse
There is no way a firmware would resolve a hardware issue (if it was that)

BWA80 said:
Woah what?
different firmware? they did not change the screen?
Does your screen now work again with no issues?
Click to expand...
Click to collapse
It did fix it, lol i just reflashed it with stock firmware, no issues yet

Related

[Q] Weird Notification Light

Hey, I bought used Nexus 5 but notification light is too weird. I tried another rom but problem didn't solved. Anybody saw this before?
Huh what? What are you asking? What is the issue?
Sent from my Nexus 5 using Tapatalk
respawn05 said:
Hey, I bought used Nexus 5 but notification light is too weird. I tried another rom but problem didn't solved. Anybody saw this before?
Click to expand...
Click to collapse
That's not a very good picture, I can't make a determination based off of that. If you post a clearer one I can definitely help you.
It kind of looks like a Chinese replacement screen. I'm not 100% sure with the picture supplied, but I'm going to guess that's what's going on.
LancerEVA06 said:
It kind of looks like a Chinese replacement screen. I'm not 100% sure with the picture supplied, but I'm going to guess that's what's going on.
Click to expand...
Click to collapse
You are probably right. Cause my Nexus 5 is white but handset(ear speaker) is black. Is there any way to solve issue?
@ldubs & @drago10029
Sorry for picture quality. On picture my notification led is lighting faulty.
respawn05 said:
You are probably right. Cause my Nexus 5 is white but handset(ear speaker) is black. Is there any way to solve issue?
@ldubs & @drago10029
Sorry for picture quality. On picture my notification led is lighting faulty.
Click to expand...
Click to collapse
Well respawn, you can test it with some LED notification apps. Change the color see what happens. Otherwise you can replace the light yourself if it's damaged or return the device (assuming the seller didn't say the LED light was broken) Hope it works out for you.
drago10029 said:
Well respawn, you can test it with some LED notification apps. Change the color see what happens. Otherwise you can replace the light yourself if it's damaged or return the device (assuming the seller didn't say the LED light was broken) Hope it works out for you.
Click to expand...
Click to collapse
I tested, nothing changed except color.
Somebody told me maybe this yellow thing(under the picture) just moved. Is that possible?
I got a little money back. So it's not a big problem but i wanna fix it.
respawn05 said:
I tested, nothing changed except color.
Somebody told me maybe this yellow thing(under the picture) just moved. Is that possible?
I got a little money back. So it's not a big problem but i wanna fix it.
Click to expand...
Click to collapse
Test it out I say, only way to find out :good:

[Q] Display staying black

I could buy a used OPO where the display seems to be defective. It just stays black, backlight is working. The seller told me it didn't fall down and there was definitely no water involved. Everything else seem to be working, you can turn it on, it vibrates and makes sound.
Could it be that the reason for the display staying black is something other than defecitve display? Maybe some kind of software failure / brick?
tropenfrucht said:
I could buy a used OPO where the display seems to be defective. It just stays black, backlight is working. The seller told me it didn't fall down and there was definitely no water involved. Everything else seem to be working, you can turn it on, it vibrates and makes sound.
Could it be that the reason for the display staying black is something other than defecitve display? Maybe some kind of software failure / brick?
Click to expand...
Click to collapse
Honestly, nobody can answer that question, and I'm not sure why you think we can. Is it possible? Yeah. But that information useless because the only way to find out is to actually do some diagnostics on the device.
Heisenberg said:
Honestly, nobody can answer that question, and I'm not sure why you think we can. Is it possible? Yeah. But that information useless because the only way to find out is to actually do some diagnostics on the device.
Click to expand...
Click to collapse
I just asked because I have no experience with the OPO and thought maybe it's kind of a known problem with this device. Maybe someone already had similar problems and some ideas i could try before i replace the screen.
tropenfrucht said:
I just asked because I have no experience with the OPO and thought maybe it's kind of a known problem with this device. Maybe someone already had similar problems and some ideas i could try before i replace the screen.
Click to expand...
Click to collapse
Even if someone did have similar problems, or even if it was known a issue, the information would be completely useless because that doesn't mean it's the case for this phone, the only way to find out is to buy the phone and check it.
Heisenberg said:
the only way to find out is to buy the phone and check it.
Click to expand...
Click to collapse
That's what I'm gonna do anyway

S7 wake up random screen flicker bug

Hi, does anyone have random screen flicker (white flash) in miliseconds when pressing home button and waking up the screen? For me its randomly appearing when I wake up the phone from sleep just before lockscreen fades in.
Yes, I have it on stock kernel, but did not notice it on Superkernel V1.1. Probably it'll be patched in the future.
davebugyi said:
Yes, I have it on stock kernel, but did not notice it on Superkernel V1.1. Probably it'll be patched in the future.
Click to expand...
Click to collapse
I hope so, its really annoying...
I only have blue flashes instead of white. Have seen it in GS3 too. Think it's normal. Isn't it?
alisaGrg said:
I only have blue flashes instead of white. Have seen it in GS3 too. Think it's normal. Isn't it?
Click to expand...
Click to collapse
I dont think its normal, I had S4 and all ok... On which Firmware version are you? Im currently on APB9 thinking of switching to APC8, maybe there isnt that bug since few people reporting the same bug...
fulcrum99 said:
I dont think its normal, I had S4 and all ok... On which Firmware version are you? Im currently on APB9 thinking of switching to APC8, maybe there isnt that bug since few people reporting the same bug...
Click to expand...
Click to collapse
It occurs very rarely and was experiencing this from S3 to S6 and now in S7. It should be normal.
alisaGrg said:
It occurs very rarely and was experiencing this from S3 to S6 and now in S7. It should be normal.
Click to expand...
Click to collapse
Installed the new APEQ firmware, bug still present but rarely...
I too have the exact same issue. Yesterday I took it to service center & this guys just reflased the rom (Factory setting) & said there is no issue with the unit everything is working fine.
Today i saw the flicker again & recorded a short clip to show them but theg refused to accept it & said its normal.
I don't know what to do shud I live with it?
I just got that too. Its normal they say? Thats bs.
I had the same problem several times all of the occured while the lhone was charging
Any idea how to fix this? It is related to a hardware problem?
No ideeas ???
It is not a hardware problem, most probably a software issue. I see it when I unlock my device just after I lock it. Most probably animation can't keep up with the screen etc. I don't care.
Edit: when you have aod on you don't encounter with the same problem.
So its not a flickering screen hardware problem(more often in cold wather) like S5 has (with this problem becoming a green flickering)??
Has anobody been able to find a solution to this problem?
It's not happening on nougat anymore.
I think i have read somewhere that L Speed is causing this. If you have it, try to uninstall and see if there is any change.

Touchscreen issues

Ok read the other posts but having touchscreen issues with the phone running Resurrection remix latest ROM. Only happened over last days and I cannot remember dropping it.
Its the middle part of the screen that sometimes do not respond.
Its 3 years old and has served me well but just wondering if there is any fix or is it time to upgrade?
funkyirishman said:
Ok read the other posts but having touchscreen issues with the phone running Resurrection remix latest ROM. Only happened over last days and I cannot remember dropping it.
Its the middle part of the screen that sometimes do not respond.
Its 3 years old and has served me well but just wondering if there is any fix or is it time to upgrade?
Click to expand...
Click to collapse
Tried changing rom?
same problem here, switched from RR to Lineage and then now Tugapower . did factory reset, system reset, media everything but no use still i see lot of screen freeze's n stuck at middle of something...
Was working fine and then suddenly the middle of the screen not responding?
Not sure if its a hardware issue as restored to a previous version and same issue.
Is there any fix?
Was working and then suddenly just stopped responding to the middle part of the screen. Resorted back to back up and same issue
Is this a hardware issue and is there any fix?
Anyone helped here or is the phone Fubarred?
As getting annoying. Was going to try a factory reset but not sure if it can be fixed by this. Is there any fix like replacing screen or is that cash down the drain?
cheers
funkyirishman said:
Anyone helped here or is the phone Fubarred?
As getting annoying. Was going to try a factory reset but not sure if it can be fixed by this. Is there any fix like replacing screen or is that cash down the drain?
cheers
Click to expand...
Click to collapse
You can always replace display.
Mr.Ak said:
You can always replace display.
Click to expand...
Click to collapse
thanks
thing is I dont want to waste spending euros if this wont fix it. The top and bottom of the screen work ok its just the middle and screen not cracked or anything but if I spend money on it and it does not fix it just a waste of Euros then. Before I do just want to check could it be any other issue?
funkyirishman said:
thanks
thing is I dont want to waste spending euros if this wont fix it. The top and bottom of the screen work ok its just the middle and screen not cracked or anything but if I spend money on it and it does not fix it just a waste of Euros then. Before I do just want to check could it be any other issue?
Click to expand...
Click to collapse
Seems like display issue only.
Mr.Ak said:
Seems like display issue only.
Click to expand...
Click to collapse
Thanks
Reading up I can see it maybe the digitizer also. So If the screen gets replaced does the digitizer get replaced with it, Tried to find out if they are connected?
funkyirishman said:
Thanks
Reading up I can see it maybe the digitizer also. So If the screen gets replaced does the digitizer get replaced with it, Tried to find out if they are connected?
Click to expand...
Click to collapse
They must be replaced in combo.Even if there's a way to separate them,it might not be the best idea.
funkyirishman said:
thanks
thing is I dont want to waste spending euros if this wont fix it. The top and bottom of the screen work ok its just the middle and screen not cracked or anything but if I spend money on it and it does not fix it just a waste of Euros then. Before I do just want to check could it be any other issue?
Click to expand...
Click to collapse
I registered just to respond to you and let you know that replacing the screen did not work for me.
I bough this phone online a few months back but gave up on it because it was literally unusable due to ghost touch inputs. I have since installed LineageOS and completely replaced the old screen and STILL get ghost inputs along the whole right edge of the phone.
Some people say it's due to an issue with the grounding of the screen. I've tried many solutions and the touches still seem random.

Backlight seems to not work anymore probably because of Magisk

Hello,
The display of my OnePlus-One is very very dark. I can barely see anything. I think it's because the backlight is not working. The last thing i did was updating Magisk from 12 to 13.1.
Here: https://forum.xda-developers.com/oneplus-3t/help/blackscreen-magisk-update-t3576571 other people also have problems with black screens after Magisk update. But other than them, i also had a blackscreen on recovery menu (There i couldn't see anything, probably because the colours are too dark). Via adb/fastboot i did a factory reset...Nothing changed. I also installed the stock rom again but it didnt help. I dont think it is a hardware error because it happened right after the Magisk Update. Can you please help me? Could it be something with the Kernel?
Regards,
masterflolo
masterflolo said:
Hello,
The display of my OnePlus-One is very very dark. I can barely see anything. I think it's because the backlight is not working. The last thing i did was updating Magisk from 12 to 13.1.
Here: https://forum.xda-developers.com/oneplus-3t/help/blackscreen-magisk-update-t3576571 other people also have problems with black screens after Magisk update. But other than them, i also had a blackscreen on recovery menu (There i couldn't see anything, probably because the colours are too dark). Via adb/fastboot i did a factory reset...Nothing changed. I also installed the stock rom again but it didnt help. I dont think it is a hardware error because it happened right after the Magisk Update. Can you please help me? Could it be something with the Kernel?
Regards,
masterflolo
Click to expand...
Click to collapse
Looks like a hardbrick.Try this,
https://forum.xda-developers.com/oneplus-one/general/tool-oneplusrecovery-tool-v1-0-restore-t2991851
Use winxp or win7 to avoid driver issues.READ THE OP CAREFULLY!
Thx for the fast reply. I used the Tool and it changed the Rom succesfully but the backlight still doesn't work. I don't think it is a brick because the phone works normal, it's just the backlight that won't turn on
masterflolo said:
Thx for the fast reply. I used the Tool and it changed the Rom succesfully but the backlight still doesn't work. I don't think it is a brick because the phone works normal, it's just the backlight that won't turn on
Click to expand...
Click to collapse
Then it's a hardware issue, need to change digitizer+LCD(display) of the device.
I tested the phone with a old Display which i changed because the glass was broken. With this Display the backlight still doesn't work. So i don't think it is a Hardware issue. And why should the Hardware break right after i updated magisk? I don't know much about the Kernel, but could it be that magisk changed something there and now it doesnt "tell" the backlight to turn on?
masterflolo said:
I tested the phone with a old Display which i changed because the glass was broken. With this Display the backlight still doesn't work. So i don't think it is a Hardware issue. And why should the Hardware break right after i updated magisk? I don't know much about the Kernel, but could it be that magisk changed something there and now it doesnt "tell" the backlight to turn on?
Click to expand...
Click to collapse
No! A mod (heck,even a non-working kernel!)cannot turn your device's display backlight dead! But yes,it can make your device hard brick.
Can you hear sounds of call and stuff? If yes,then it's definitely the display at fault.
If not,then it's definitely a hard brick,in that case you must try the link that I gave in above posts.
Well time for a new phone i quess.. Yes i can hear sound of call and so on, like i said it works normal. But i tried it with my old Display and it's the same problem. Could something on the Mainboard be the reason for it?
masterflolo said:
Well time for a new phone i quess.. Yes i can hear sound of call and so on, like i said it works normal. But i tried it with my old Display and it's the same problem. Could something on the Mainboard be the reason for it?
Click to expand...
Click to collapse
Can be a backlight ic on motherboard..
Are you sure your previous display was working good?
masterflolo said:
Hello,
The display of my OnePlus-One is very very dark.
Click to expand...
Click to collapse
You are hasty to blame Magisk. It would be more reasonable to consider the screen replacement as cause of a screen issue than think of Magisk as the cause.
Mr.Ak said:
Can be a backlight ic on motherboard..
Are you sure your previous display was working good?
Click to expand...
Click to collapse
Yes it was working, the only problem was that it didn't react when i touched near the cracks. But the Display worked.
pbergonzi said:
You are hasty to blame Magisk. It would be more reasonable to consider the screen replacement as cause of a screen issue than think of Magisk as the cause.
Click to expand...
Click to collapse
I don't think it's a coincidence that this happened RIGHT AFTER i updated Magisk
masterflolo said:
Yes it was working, the only problem was that it didn't react when i touched near the cracks. But the Display worked.
I don't think it's a coincidence that this happened RIGHT AFTER i updated Magisk
Click to expand...
Click to collapse
Then it can be a backlight ic or you can try ordering a new display..
It is definitely not happened by Magisk!
Mr.Ak said:
Then it can be a backlight ic or you can try ordering a new display..
It is definitely not happened by Magisk!
Click to expand...
Click to collapse
Can you change the backlight ic without ordering a new Motherboard? Do you know a site where they sell them? Or is it not possible as a newbie because you need to solder it?
masterflolo said:
Can you change the backlight ic without ordering a new Motherboard? Do you know a site where they sell them? Or is it not possible as a newbie because you need to solder it?
Click to expand...
Click to collapse
No,you'll have to replace the whole motherboard itself.
But I think you should get your device checked by a professional.

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