Mi4 Screen Problem - Xiaomi Mi 4

The screen was perfectly good untill yesterday, and today morning when i woke up I saw vertical lines on the display. Tried turning it off, removed temper glass but the problem is still there. When the mobile is turned on from sleep, the display is perfectly fine but the lines appear slowly after 2 seconds. So is this a major or a minor hardware or a software problem. I have also posted the screenshots.
Thanks.

Is it there during booting?

shaquib65 said:
The screen was perfectly good untill yesterday, and today morning when i woke up I saw vertical lines on the display. Tried turning it off, removed temper glass but the problem is still there. When the mobile is turned on from sleep, the display is perfectly fine but the lines appear slowly after 2 seconds. So is this a major or a minor hardware or a software problem. I have also posted the screenshots.
Thanks.
Click to expand...
Click to collapse
Hey friend, you have to provide us with the basic details first.
the rom you are using, and etc...
if you are sure about the rom then asap go to the xiaomi customer care, nearby.
Good Luck.

any body faced dull screen issue on MI4!!! ????
I am facing it.. i compared with many MI4... its diffrent thn others... some pinkish shade is thr...
thy replaced motherboard but still d same.. thn thy changed screen.. but still the same..
What to do now?? any idea??

Dark69Slayer said:
Is it there during booting?
Click to expand...
Click to collapse
No, not during the boot, turned out it was damaged screen, and the service center is charging me for the screen even though there is no physical damage. They say it was internal damage, you can't see it, but we know it. Is it true?
I think it comes under abnormal screen and it is covered under warranty.

Today I gone to adjust brightness of screen but I don't know suddenly display is fully black, I cant do anything. please suggest how can I repair it?

Bro, don't visit normal service centers they are not good and mostly they have very poor service, I would suggest you to use pickmi service and send the phone to them, they will resolve the issue and send your phone back faster than normal service center guys, my phone battery was not charging, I got it fixed in 15days in which there were Diwali holidays also.
Try that bro.

Related

[Q] Screen problem (blurry screen on touch)

Hello everyone.
Yesterday, I got weird problem (in one hand). Phone screen on touch becomes blurry, like it's liquified... This never happened before and I believe it's hardware problem. Here's YT video which shows whats happening:
http://www.youtube.com/watch?v=oMsFQddR1FM
Anyone had this kind of problem? Maybe some advice?
max5800 said:
Hello everyone.
Yesterday, I got weird problem (in one hand). Phone screen on touch becomes blurry, like it's liquified... This never happened before and I believe it's hardware problem. Here's YT video which shows whats happening:
http://www.youtube.com/watch?v=oMsFQddR1FM
Anyone had this kind of problem? Maybe some advice?
Click to expand...
Click to collapse
There is something pushing on the screen from behind. Push hard on a laptop screen or anything LCD and it will do that. It's to do with how LCD works.
I know, but how come it happened out of nothing? Phone has not been opened...
Sent from my GT-I5800 using XDA App
yup mate
i got this issue when am using motorok e8
it has fine lcd.... but the main drawback is lcd issue
well in the on topic., as hillbeast said... the gap btw the lcd screen and the screen case gets shortened... so when u put ur finger..it hitting the screen case/something below..
SUGGESTION:
ur lcd got damaged... use till it lost completely.. meanwhile buy one lcd or report to
this to the nearby samsung service centre
austin266 said:
yup mate
i got this issue when am using motorok e8
it has fine lcd.... but the main drawback is lcd issue
well in the on topic., as hillbeast said... the gap btw the lcd screen and the screen case gets shortened... so when u put ur finger..it hitting the screen case/something below..
SUGGESTION:
ur lcd got damaged... use till it lost completely.. meanwhile buy one lcd or report to
this to the nearby samsung service centre
Click to expand...
Click to collapse
Friend of mine who works in T-mobile told me the same thing. He said I should wait for it to stop working and bring it to service as I still have warranty.
Thanks everyone.
cool mate
hope u will get the phone back to u hands asap.... so that u can explore and enjoy sg3
Hmm, my cousin had the same in SG3, but it dissapeared. He doesn't do anything about it, just it was gone after some time...

[Q] Smartwatch 2 - a display backlight spot issue

Hi
I`ve been using my SW2 for 2 weeks and I have noticed few spots on my screen. See below.
It seems like the display has been de-colorized or influenced by most frequent touching zones on the display.
I still have warranty is this an issue and I should return this watch or?..
any suggestions what is going on?
PS: I have not exposed my watch to water or anything.
vendo said:
Hi
I`ve been using my SW2 for 2 weeks and I have noticed few spots on my screen. See below.
It seems like the display has been de-colorized or influenced by most frequent touching zones on the display.
I still have warranty is this an issue and I should return this watch or?..
any suggestions what is going on?
PS: I have not exposed my watch to water or anything.
Click to expand...
Click to collapse
I've had my watch for over 3 months and have no problems like this. You could contact Sony and see if they will repair or replace it. Looks like a warranty issue to me.
if you look at the watch at a 90 degree angle, you will not see this, but if you look at lets say a 30 or 20 degree, you will see this, it's a LCD backlight washing issue, it's a common issue with LCD screens, i have a very slight washing, nothing like yours, you should def send it back to sony, this is too much washing
This is what happened to me today, I`ve tried restarting the watch and no help. Not sure how to do hard reset and not sure if it would help.
I`m sending them back.
vendo said:
This is what happened to me today, I`ve tried restarting the watch and no help. Not sure how to do hard reset and not sure if it would help.
I`m sending them back.
Click to expand...
Click to collapse
I have the same problem! So if we are both with this issue, it looks like technical iisue of this watch.
What's more sometimes lines and weird colors disappear but after that they will appear again. :/
vendo said:
Hi
I`ve been using my SW2 for 2 weeks and I have noticed few spots on my screen. See below.
It seems like the display has been de-colorized or influenced by most frequent touching zones on the display.
I still have warranty is this an issue and I should return this watch or?..
any suggestions what is going on?
PS: I have not exposed my watch to water or anything.
Click to expand...
Click to collapse
Okay, I've got exactly the same problem about a month after I brought it. I got mine replaced. I've got it back today after waiting for a month. Hope the new one will last longer.
What I suspect is a battery issue where the battery heats up and also heats the display. The reason to suspect the battery is because it was kinda weak and lasted 2 days at most with very light usage and was heating a bit during charge which may be the cause of display failure.
this is what SONY replied to me
" That appears to be a hardware fault so better send it back or have it assessed at Sony service center."
and this is fresh screen from this morning, the defect is changing but it is getting worst and worst.
vendo said:
this is what SONY replied to me
" That appears to be a hardware fault so better send it back or have it assessed at Sony service center."
and this is fresh screen from this morning, the defect is changing but it is getting worst and worst.
Click to expand...
Click to collapse
Looks bad, so give it back to Sony

Screen problem

Got this problem with my screen,it became yellow one a small side of the screen,can I do something to fix it myself or I need to fix it with my warranty?
Looks like an hardware issue... How did you got that?
RedSkull23 said:
Looks like an hardware issue... How did you got that?
Click to expand...
Click to collapse
Charged the phone while I was doing some work ,I unplugged it at 90%,at the moment I didn't realized that the screen is yellow.After a few days I saw that the screen was a bit odd,if the screen shows a black photo,were the yellow spots are white.
Did it fall on the floor, took bad bumps, stayed on a heat font for a long period..? It's too much bizzarre to face this as a result of a software issue/error. You could try to send it to service center saying that you found it like that from one day to another, if it isn't a result of an accidental impact caused by you they should fix that by replacing the screen.

Possible display damage? Or proximity sensor issue?

Hi everybody.
I’ve had this phone for 10 months now and it’s been great. Yesterday, when i was trying to make a call, it was telling me that i am too close to the screen. I understood that the proximity sensor was acting funny, but I didn’t had time to look into it, because it was not covered by anything and it was in good light. This morning it was a short white flash when I unlocked it or when I was turning the screen off. It worked great all day after that. Then this evening i was using the phone and all of the sudden the screen started to flash white, then it would turn off fast and back on all white. It did that for 4-5 times, then it went in the state you see in the clip below. At one tine, it turned on like nothing happened for 3-4 seconds.
If i plug the charger in, it reacts normal. It's making the charging sound and it vibrates. Seems to be alive in the background, even though it's not displaying anything.
Does it have anything to do with the proximity sensor? Is it the ribbon cable connecting the display to the motherboard faulty? Should i just order a new display assembly?
Interesting, the next day seems to behave a bit different. I had remote erased it, i didn't want any of my personal data to remain on it.
I have found out that if the brightness level is low, i takes a few seconds until it starts blinking. If the brightness is high, then it does that straight away.
Ok, i will post a follow up for anyone else having the same problem. Now i can see that the display is damaged on the top left corner, the pixels are staying lit up bright. Now i can use it on low brightness for longer periods of time without flickering.
I have ordered a replacement screen assembly and i'm still waiting for it, as i don't have the phone under warranty. Looking forward to getting it fixed.
I have also ordered a replacement screen and will replace it when the shipment arrived. Have you found a repair manual for the screen replacement?
I have already removed the back cover of my phone and it seems it will not be so difficult. But it would be better to follow a manual.
CrisGSM said:
Hi everybody.
Does it have anything to do with the proximity sensor? Is it the ribbon cable connecting the display to the motherboard faulty? Should i just order a new display assembly?
Click to expand...
Click to collapse
I read this post now, I've got this kinda of broblem a month ago, but this happened only when the phone temperature became hot, I mean over 40°C, after a factory reset everything became normal, I no longer got high temperature and this problem don't appear, so at least in my phone it wasn't a hardware problem.
https://u.pcloud.link/publink/show?code=XZlcytkZWeh5RbqPt7fWqlxP3mT0LSb7b3oy
Hey guys I had the exact same problem. I sent my phone back in for repair and this is what I got
We have completed the necessary evaluation and repairs. We have also updated your device to the most current software.
We are in the process of shipping your device back. Typically, you should receive your device within two to three business days.
Repair Info: Display Failure(LCD Crack) (Functional), Display Failure(LCD Screen Bla (Functional), Display Failure(Others) (Functional)
Tracking number: 3939 9990 3569
If you have any additional questions, please DO NOT respond to this email. You may call us at 1-877-817-1759.
My advice is if the phone is under warranty send it in. Seeing this makes me wonder if it's a widespread hardware issue
I have received the replacement display and i have done the repair myself. All is fine, the phone is working good now.
CrisGSM said:
I have received the replacement display and i have done the repair myself. All is fine, the phone is working good now.
Click to expand...
Click to collapse
How was the teardown ? I can't find any videos on it. The axon 7 was a pain for me because the aluminum case was a pain to take off around the corners and got damaged a bit. Hopefully removing the back of the axon 10 is a little easier . Thanks for any info

Black Screen Of Death

Hi All
Has anyone had any issues with a black screen?
Everything else works like incoming calls and notifications but the screen it totally black!
Woke up early hours last night and noticed no AOD so tried to turn my phone on but the screen was just dead. Tried the volume and power button but still no joy
Power it down completely then plug in the charger.
If nothing shows on the screen it sounds like you lost some significant hardware... maybe just a connector.
toddyc said:
Hi All
Has anyone had any issues with a black screen?
Everything else works like incoming calls and notifications but the screen it totally black!
Woke up early hours last night and noticed no AOD so tried to turn my phone on but the screen was just dead. Tried the volume and power button but still no joy
Click to expand...
Click to collapse
Same happened to my SM-N9860 unit when I woke up today. I about to unlock and the display suddenly went black screen. Did everything but no luck. I am also sure it's the display that's f***d up. The phone is still working - I can still access it in Dex and Link to Windows. This is my second Samsung phone with f**d up display for unknown reason. This is crap Samsung. Not expecting for this from an expensive flagship smartphone. I swear this is the last.
toddyc said:
Hi All
Has anyone had any issues with a black screen?
Everything else works like incoming calls and notifications but the screen it totally black!
Woke up early hours last night and noticed no AOD so tried to turn my phone on but the screen was just dead. Tried the volume and power button but still no joy
Click to expand...
Click to collapse
By the way, how did you fix your phone?
I tried searching it on the net, seems a number of Note 20 ultra units are experiencing the same.
https://us.community.samsung.com/t5/Note20/Note-20-Ultra-Black-Screen-Phone-no-display/td-p/1437825
Seems that display replacement is the only fix.
tribalfs said:
By the way, how did you fix your phone?
I tried searching it on the net, seems a number of Note 20 ultra units are experiencing the same.
https://us.community.samsung.com/t5/Note20/Note-20-Ultra-Black-Screen-Phone-no-display/td-p/1437825
Seems that display replacement is the only fix.
Click to expand...
Click to collapse
Poor parts QC.
Samsung will substitute components and smaller chipsets in the middle of a production run. This can lead to unpredictable behavior especially after firmware updates... or outright failures like this.
Not reassuring especially with a flagship phone.
blackhawk said:
Poor parts QC.
Samsung will substitute components and smaller chipsets in the middle of a production run. This can lead to unpredictable behavior especially after firmware updates... or outright failures like this.
Not reassuring especially with a flagship phone.
Click to expand...
Click to collapse
Yeah. Very disappointing.
I can't believe it but my screen unexpectedly revives itself after a day.
tribalfs said:
I can't believe it but my screen unexpectedly revives itself after a day.
Click to expand...
Click to collapse
Time will tell. Intermittents are the hardest hardware failures to troubleshoot...
blackhawk said:
Time will tell. Intermittents are the hardest hardware failures to troubleshoot...
Click to expand...
Click to collapse
Agree. But I am happy that it's working fine now and I hope it will not recur.
tribalfs said:
I can't believe it but my screen unexpectedly revives itself after a day.
Click to expand...
Click to collapse
hi im facing exact same thing in my N986 B Galaxy Note 20 Ultra. I had 10 percent battery left. i had put phone on charge and saw after 20 minutes and tghe screen was black.
Now its blackscreen can connect with tv via hdmi dex mode
but phone restarts after 10 minutes.
the touch seems fine as mouse function works phone is on but no display
can you tell exactly what you did when your phone revieved after one day
did u keep it on. charge all tiime tried reset or removed charging
or nothing and tried after 1 day
Edit After 24 hours of tapping slappingrebooting installing stock firmware. my display came back alive.
last thing was i was using phone in dex mode and trying to open close camera app rapidly by direct touch on screen. i dont know what worked but it saved my 300 dollars of screen replacement
I have exactly the same issue.
I was typing on whatsapp when suddenly screen get black. It was on friday morning. Notifications were ok, voice commands too. Touchscreen ok, I could use it normally when using my TV as screen with HDMI cable or with my notebook, when connected to windows or even Dex.
One day earlier I had an issue with the new magisk update. I freeze magisk manager wich was force closing but later, I managed to reinstall with dex and was working fine. Not sure if it's related.
I already flashed fresh stock Android R rom, wich I thought would solve any issues related to magisk or any other software issue.
24h after flash stock rom and keep force rebooting and taping, and my display is still dead.
Tried to tap, slap, shake (I can her some noise next to camera module when shaking, is it normal? I took off S-pen and microsd tray to see if it was the cause, but the noise still persists). No damage, water, or anything else. Only 2 months of use.
Display is still dead.
I'm draining battery now with some apps that also vibrate phone, to see what happens when full drained.
I live in Manaus/Brazil and repair centers are not working until March 23 because of Sars-CoV2. And my knox is tripped. It would cost a lot If I have to replace display or even the phone, since they probably will say it's no longer covered by warranty.
Any tips are welcome.
Thanks in advance.
Hope I have that lucky as well.
It happened to me again today. Surprisingly, a strong knock at center of the screen revived it again.
tribalfs said:
It happened to me again today. Surprisingly, a strong knock at center of the screen revives it again.
Click to expand...
Click to collapse
Hardware failure. May be a loose connection, cracked solder joint, trace failure on the mobo, or a bad component.
Intermittents are the hardest problems to find...
blackhawk said:
Hardware failure. May be a loose connection, cracked solder joint, trace failure on the mobo, or a bad component.
Intermittents are the hardest problems to find...
Click to expand...
Click to collapse
Yes, obviously. Samsung already replacing displays of those who are having this issue.
tribalfs said:
Yes, obviously. Samsung already replacing displays of those who are having this issue.
Click to expand...
Click to collapse
Not good if there's a recall... crap QC is getting to be a bad Samsung habit.
Those of you with BSOD issues: Did you have intermittent wifi connectivity issues as well? My N20U had the 'connected to wifi AP but no internet' for the last month. Then today after unplugging the OEM charger, checking charge level, never picking the phone up from the desk, and returning to it 30 minutes later the BSOD had hit. No amount of hard restarts or waiting fixed it and it had to get shipped back. Just wondering if there is any correlation between the wifi issue and the screen going out, and if people should start sending their note in ASAP if the wifi problem occurs before the screen goes?
hello
i had the same problem (didn't have any Wifi issues before)
and after the screen went black for 2 day , it came back and worked for a few hours.. then went off again and Never came back
i tried everything, resets , cables , connecting to Dex or Hdmi , updating.. but Never worked
i went to Samsung and they said screen must be replaced ( will pay for it as i am out of warranty)
can you tell me what have you done or if anything worked for you?
My screen went black after a screen replacement. Only the front glass was broken not the digitizer or actual screen. From what I can tell it's not just the screen that's dead, it's the digitizer too. The S-Pen board underneath it all isn't even registering. When I plug it in the computer doesn't see it so Dex won't connect and there is no signal for HDMI to work. Had the USB port replaced just to be sure it wasn't a bad port.
It's like some one took the graphics card out of a computer and took the touch screen monitor. The phone still gets signal. It connected to my smart Fossil watch and I could answer calls and texts.
But the phone is 9 months old. And from what I've heard from parts distributors it's not the screen that's the issue. So now I have a new motherboard. Now I have to figure out how to program it....

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