Hi All,
I broke my my Redmi K20 pro display and have replaced it.
With the broken display, all was working except the display. i.e., phone would ring on calls, vibrate, notifications would ring, battery charging did sound. So, assuming that nothing else was damaged.
After display replacement, the screen doesn't get unlocked.
Phone boots properly and asks for pattern/fingerprint. Does not recognise fingerprint and on entering the correct pattern, the screen unlocks for a micro-second and then turns black and then the purple MIUI logo shows and the screen returns to locked state.
Phone performs all functions that can be done from locked screen.
Is the new display being not recognised by the phone OS?
Any assistance would be great.
Thanks a lot in advance.
arryshome said:
Hi All,
I broke my my Redmi K20 pro display and have replaced it.
With the broken display, all was working except the display. i.e., phone would ring on calls, vibrate, notifications would ring, battery charging did sound. So, assuming that nothing else was damaged.
After display replacement, the screen doesn't get unlocked.
Phone boots properly and asks for pattern/fingerprint. Does not recognise fingerprint and on entering the correct pattern, the screen unlocks for a micro-second and then turns black and then the purple MIUI logo shows and the screen returns to locked state.
Phone performs all functions that can be done from locked screen.
Is the new display being not recognised by the phone OS?
Any assistance would be great.
Thanks a lot in advance.
Click to expand...
Click to collapse
Have you formatted the phone? Are you on stock rom?
Sent from my Redmi K20 Pro using Tapatalk
abees said:
Have you formatted the phone? Are you on stock rom?
Sent from my Redmi K20 Pro using Tapatalk
Click to expand...
Click to collapse
No, the phone is not formatted. It is using the same ROM as bought.
Try a clean install with backed up data.
Mi 9T Pro ll Tapatalk
arryshome said:
Hi All,
I broke my my Redmi K20 pro display and have replaced it.
With the broken display, all was working except the display. i.e., phone would ring on calls, vibrate, notifications would ring, battery charging did sound. So, assuming that nothing else was damaged.
After display replacement, the screen doesn't get unlocked.
Phone boots properly and asks for pattern/fingerprint. Does not recognise fingerprint and on entering the correct pattern, the screen unlocks for a micro-second and then turns black and then the purple MIUI logo shows and the screen returns to locked state.
Phone performs all functions that can be done from locked screen.
Is the new display being not recognised by the phone OS?
Any assistance would be great.
Thanks a lot in advance.
Click to expand...
Click to collapse
If the phone displays boot logo and animations and lockscreen, then that suggests the display is OK.
What you describe actually sounds like the recent wallpaper bug, where a wallpaper image is set, but the image has a colour space not recognised by the OS. Try booting to recovery and doing a factory reset (I'm assuming MIUI recovery gives this option, I can't remember if it does or not)
arryshome said:
Hi All,
I broke my my Redmi K20 pro display and have replaced it.
With the broken display, all was working except the display. i.e., phone would ring on calls, vibrate, notifications would ring, battery charging did sound. So, assuming that nothing else was damaged.
After display replacement, the screen doesn't get unlocked.
Phone boots properly and asks for pattern/fingerprint. Does not recognise fingerprint and on entering the correct pattern, the screen unlocks for a micro-second and then turns black and then the purple MIUI logo shows and the screen returns to locked state.
Phone performs all functions that can be done from locked screen.
Is the new display being not recognised by the phone OS?
Any assistance would be great.
Thanks a lot in advance.
Click to expand...
Click to collapse
Hi, were you able to fix this problem?
Yes. I'm currently using the same device.
Kept on unlocking the screen using pattern. Fingerprint recognition puts the device in the reboot sequence. So now I only use pattern unlock.
I tried unlocking about 100 times and then this one time the phone behaved and remained unlocked.
It was like training my pet... lol
All the best.
Related
Non rooted, T mobile branded 3 month old note 8. No water damange, no drops etc.
Using chrome one miniute, set the phone down to watch a movie on my tablet, picked up the phone to check messages and boom. Screen is off. The phone works, I can even answer calls because I know where the answer button is on the screen, haptic feedback works, all indicator lights work. The phone screen remains off.
Tried a soft reset (tried hard reset too the best I could being I cant see the screen) and the phone seems to reset based on the vibration and indicator light patters but the screen remains off. It's as if a physical connection between the screen and the brains of the phone has been severed. Literaraly the weirdest thing that has happened to me in a decade of Android phone ownership.
Googled all the black screen issues with these phones and most of them are resolved with just a soft reset... some said that the phone is in it's lowest dimmed state and go to a dark room and i'll see it faintly and then can increase brightness... no luck...
Has anyone experienced this?
I would say it's a warranty job, just tried turning my brightness to zero and you can still see the screen.
I did have a similar problem on an old note that had root and custom rom though but I had somehow set the volume rocker to control brightness and it had lowered itself to minimum in my pocket
KEVIN88GT said:
Non rooted, T mobile branded 3 month old note 8. No water damange, no drops etc.
Using chrome one miniute, set the phone down to watch a movie on my tablet, picked up the phone to check messages and boom. Screen is off. The phone works, I can even answer calls because I know where the answer button is on the screen, haptic feedback works, all indicator lights work. The phone screen remains off.
Tried a soft reset (tried hard reset too the best I could being I cant see the screen) and the phone seems to reset based on the vibration and indicator light patters but the screen remains off. It's as if a physical connection between the screen and the brains of the phone has been severed. Literaraly the weirdest thing that has happened to me in a decade of Android phone ownership.
Googled all the black screen issues with these phones and most of them are resolved with just a soft reset... some said that the phone is in it's lowest dimmed state and go to a dark room and i'll see it faintly and then can increase brightness... no luck...
Has anyone experienced this?
Click to expand...
Click to collapse
Try pressing and holding Volume down and power button for 5 to 7 seconds to force power off, then try to boot to download mode Volume Down + Bixby + Power button and see if the download mode screen shows......if not then probably a bad screen.
Sent from my God Mode 8
Tried it......nothing.....warranty job it is.... Bummed to have some refurnished phone in exchange for a Brand new 900 dollar phone just a few months back?
KEVIN88GT said:
Tried it......nothing.....warranty job it is.... Bummed to have some refurnished phone in exchange for a Brand new 900 dollar phone just a few months back?
Click to expand...
Click to collapse
Yeah that sucks, i can imagine..... i too hate the idea of refurbished units being swapped for warranty....bs, should be brand new unit!
Sent from my God Mode 8
so I had it replaced under warranty through T mobile. Refurb phone will come in today. One quesion. Should I let the Tmobile techs do the data/settings transfer from old phone to new one or just do everything myself from scratch (which will obviously take longer).
This happened to my phone twice for the past month or so. (both in Nougat and Oreo - Non rooted) Black screen but phone seems to be responding -- I can receive calls and notifications etc -- And force reboot doesn't fix it. I've also tried drainging the phone when it first happened to me but doesn't work. HOWEVER, it gets okay so randomly. Like I just left it for couple of hours and it just worked when I hit the power button.
I did tried bringing the device to Samsung but what they did is to just manually upgrade/reset the software in their end which I could have done in my part but I just let them do it. They told me to come back if it happens again which is kinda BS.
I can conveniently say this is a Hardware issue. I will wait for it to happen again on my phone and request for a replacement. Phone is 4 months old when it first happened.
I have the same issue with blank screen but phone is working.
It started couple of weeks after i dropped my phone on the ground. There is black dot on my screen and broken glass but phone was working ok and was still pretty usable. But then it started:
Display works fine but when i switch display of, lock the phone or display switched because of its timer it didn come switch on... But phone works, i can use it with blank (black) screen.
I had to do force restart so the display will turn on with samsung logo and booting screen, and keep on till another switch of.
I was trying every setting (but no hard reset) and then i found a little hack:
When you turn on the "Always On Display" (AOD) function you can let the screen switch off or do it manually, wait for 1-2 sec and always on display will come up to the screen. Then when you press home button or lock button screen will swtich on normally. YOu can type pin and use phone witch screen working. But when you try to unlock from "AOD" with your finger or your eyes it unlock but with screen black.
So i was using it like this. everytime you need to wait second untill AOD comes up, but it was working fine.
Problem nu 2 is that now it stop working, AOD is working but when i want to switch screen on from AOD it shows black screen and phone is working on blind.
So everytime after my screen goes black or to AOD i have to unlock the phone blindly and "Force restart" it and have to keep waiting until boot, and then have to never let phone to screen of.
Its not usuable.
¨
Now what do you think? Is it hardware problem or software problem? Because screen is working but randomly. The black dot of dead pixels on the screen is getting slightly bigger in time (about 1 year) but its like 1.5cm round. Maybe this cause the problem? And why hack with AOD was working for half a year and then stoped working? There wasnt any updates right before, but i tried to install some apps (non display related) so ill try to uninstall them.
Hawe you got any idea if i can repair it on my own even if i loose the waterproofability?
Or can it be replaced for free if i have a warranty? (I dont have insurance)
Thanks for your tips guys.
Reprocrastinator said:
I have the same issue with blank screen but phone is working.
It started couple of weeks after i dropped my phone on the ground. There is black dot on my screen and broken glass but phone was working ok and was still pretty usable. But then it started:
Display works fine but when i switch display of, lock the phone or display switched because of its timer it didn come switch on... But phone works, i can use it with blank (black) screen.
I had to do force restart so the display will turn on with samsung logo and booting screen, and keep on till another switch of.
I was trying every setting (but no hard reset) and then i found a little hack:
When you turn on the "Always On Display" (AOD) function you can let the screen switch off or do it manually, wait for 1-2 sec and always on display will come up to the screen. Then when you press home button or lock button screen will swtich on normally. YOu can type pin and use phone witch screen working. But when you try to unlock from "AOD" with your finger or your eyes it unlock but with screen black.
So i was using it like this. everytime you need to wait second untill AOD comes up, but it was working fine.
Problem nu 2 is that now it stop working, AOD is working but when i want to switch screen on from AOD it shows black screen and phone is working on blind.
So everytime after my screen goes black or to AOD i have to unlock the phone blindly and "Force restart" it and have to keep waiting until boot, and then have to never let phone to screen of.
Its not usuable.
¨
Now what do you think? Is it hardware problem or software problem? Because screen is working but randomly. The black dot of dead pixels on the screen is getting slightly bigger in time (about 1 year) but its like 1.5cm round. Maybe this cause the problem? And why hack with AOD was working for half a year and then stoped working? There wasnt any updates right before, but i tried to install some apps (non display related) so ill try to uninstall them.
Hawe you got any idea if i can repair it on my own even if i loose the waterproofability?
Or can it be replaced for free if i have a warranty? (I dont have insurance)
Thanks for your tips guys.
Click to expand...
Click to collapse
If you're under warranty it will likely be a free repair, unless they find other damage. Like moisture damage.
As far as fixing it yourself, it's just about as cheap to have Samsung do it than it is to buy the parts yourself. It's $229 for Samsung to do it, and you'll maintain the water resistance rating.
same has happened to me
KEVIN88GT said:
Non rooted, T mobile branded 3 month old note 8. No water damange, no drops etc.
Using chrome one miniute, set the phone down to watch a movie on my tablet, picked up the phone to check messages and boom. Screen is off. The phone works, I can even answer calls because I know where the answer button is on the screen, haptic feedback works, all indicator lights work. The phone screen remains off.
Tried a soft reset (tried hard reset too the best I could being I cant see the screen) and the phone seems to reset based on the vibration and indicator light patters but the screen remains off. It's as if a physical connection between the screen and the brains of the phone has been severed. Literaraly the weirdest thing that has happened to me in a decade of Android phone ownership.
Googled all the black screen issues with these phones and most of them are resolved with just a soft reset... some said that the phone is in it's lowest dimmed state and go to a dark room and i'll see it faintly and then can increase brightness... no luck...
Has anyone experienced this?
Click to expand...
Click to collapse
This has just happened to my note 8 too. I was about to update it and had started it. set my phone down and picked it up and phone screen is black but can hear the haptic feedback.
I can only see the lock screen and the notifications. Everytime I try to unlock my phone I only get to see a glimpse of the notescreen and then the screen turns black. Even when I try to go to camera through the lock screen the screen goes black too. When I charge my phone it heats up so I haven't really charged it as well. Has this also happened to anyone? It seems as if the phone's sensitivity still works in all places but when I unlock it the screen just goes black.
I also have problem of freezings and always rebooting. Tried soft and hard resets/factory reset. Still same problem. This phone has hardware issue. Do not buy.
I realize this thread is quite old but I have this exact same issue now. I have managed to discover some other information by playing around with various settings which are noted below. To begin with, I was able to used the AOD hack posted above for a while but it no longer works. The only way I can get my screen to come back is with a soft reset - but as soon as the screen times out or i turn it off, it goes black, with or without AOD enable. All the on screen buttons still work as well as the haptic feedback - I just can't see anything.
Now on to what I have found:
One thing I have found is if I turn off adaptive screen brightness and crank the brightness slider to the right, when it goes black I can faintly see some of the buttons - enough that I can turn the phone off or restart it from the power menu (If I switch the default setting to night that also helps to see the buttons a bit better). Also, if I enable night mode I can also see the brightness slider faintly but when I slide it left, it just makes the screen completely black and when I slide it right, it only returns it to the very faint brightness level.
So at this point I am stuck. To summarize the issue:
1. When the screen either times out or turns off, it is still "alive" but goes black. It will not return to normal brightness.
2. Turning off adaptive brightness and cranking brightness slider to right allows you to see faint buttons after screen times out but won't return to normal brightness.
3. Enabling night mode helps to see the faint buttons, in particular the brightness slider a bit better. However the screen still cannot return to normal brightness.
4. The only way to get the screen back to full brightness (albeit temporarily until the next timeout) is to turn off the phone or reset from the power menu; or soft reset holding volume down + power simultaneously.
Hopefully someone else has figured out a way to recover this. I am on Android 9 with Samsung UI 1.0
Phone is completely stock, never rooted and completely out of warranty.
Hello.
First, sorry for my english, i'm from Brazil. kkk
I need help to my xiaomi a2.
I broken the touch, but not the display, and the smartphone work perfectly.
I bought a new touch and display, but, the display not show any image.
I feel the phone shake when i press the power button. Instants later, the fingerprint works when i touched.
The touchscreen shake(shake?kkk) when i touched, like a normal work, but, the display not response.
The ilumination leds from display is on, but the display not worked.
The new display don't work or i'm brick the cellhpone?kk
Ah, The old display crashed and i can not test the cellphone.
The rom is original, no root, all original factory.
Has anyone ever experienced this?
Help-me kkk
Thanks
andertrumpet said:
Hello.
First, sorry for my english, i'm from Brazil. kkk
I need help to my xiaomi a2.
I broken the touch, but not the display, and the smartphone work perfectly.
I bought a new touch and display, but, the display not show any image.
I feel the phone shake when i press the power button. Instants later, the fingerprint works when i touched.
The touchscreen shake(shake?kkk) when i touched, like a normal work, but, the display not response.
The ilumination leds from display is on, but the display not worked.
The new display don't work or i'm brick the cellhpone?kk
Ah, The old display crashed and i can not test the cellphone.
The rom is original, no root, all original factory.
Has anyone ever experienced this?
Help-me kkk
Thanks
Click to expand...
Click to collapse
Could you provide images of the phone? Also did you check with the service centre?
I have k 20 pro Indian variant, full stock, no root ,etc, i have a problem, my screen brightness automatically lowers whenever i exit the game mode and sometimes randomly too ,i have disabled auto brightness option as well as DC dimming option;
I also noticed that the screen is on warmer side, i have nokia 7 plus and i opened white wall paper on both the devices, and k20 pro shows warmer image, and nokia 7 plus is showing a proper white image, i have tried all 2 colour modes in display settings, but its still showing warmer image.
I tried hard reset also.
Can anyone tell is these things are hardware fault or its just software problem with everybody device.
K20 pro, MIUI global 10.3.3.0 stable
I assume it should be a hardware related issue.
As far as I am concerned, brightness change could be related to software. For me it happens since I installed Xiaomi EU beta. Of course this shouldn't even happen in your situation but who knows.
Warmer images, as Anand_theGeek says, this should be related to hardware problem.
Same happens to me. This is a F******g sh****t
It is a problem with EU beta
I also noticed that front camera is making face red while clicking selfie, if i cover my face then camera is showing actual colours, but when it recognizes face in the frame it automatically turns the face red, i also disabled all beauty footers but seems there is something wrong with camera software, because gcam port is not showing red face in front camera, can anybody confirm if they are also facing this issue.
Sent from my Nokia 7 plus using XDA-Developers Legacy app
CoñoWilly said:
Same happens to me. This is a F******g sh****t
It is a problem with EU beta
Click to expand...
Click to collapse
ç
It happens to me too
CoñoWilly said:
ç
It happens to me too
Click to expand...
Click to collapse
Same here, after 2 days I suddenly noticed the display has a rather warmer white tint.
Compared it with my Poco, and there is a substantial difference between the two phones, whereas the MI 9T PRO, almost has a yellowish white.
I did noticed that, when rebooting, the display is "normal" for a second,and then turns to yellowish.
Still on stock rom, bootloader locked.
Edit: it is gone, suddenly the whites on my screen returned to normal. I was already thinking it had something to do with the automatic brightness combined with the Night Mode settings.
you guys using auto brightness mode ?
Aimara said:
you guys using auto brightness mode ?
Click to expand...
Click to collapse
Sometimes yes
mikey1975 said:
Same here, after 2 days I suddenly noticed the display has a rather warmer white tint.
Compared it with my Poco, and there is a substantial difference between the two phones, whereas the MI 9T PRO, almost has a yellowish white.
I did noticed that, when rebooting, the display is "normal" for a second,and then turns to yellowish.
Still on stock rom, bootloader locked.
Edit: it is gone, suddenly the whites on my screen returned to normal. I was already thinking it had something to do with the automatic brightness combined with the Night Mode settings.
Click to expand...
Click to collapse
Same problem here. Sometimes even if I use cold colours in display settings, I get verey very yellowish whites. And sometimes not. Using increased cotrast is the same thing
I'm not using DC Dimming, auto brightness, reading/night mode. It is very strange..
Still no solution for this??
my redmi k20 pro 256 variant suddenly goes black screen for no reason, while using the phone the screen suddenly goes black, tried restarting the phone, still black even the fastboot image is black also the recovery, tried flashing again but still black, the phone is fine i can tell because i can still touch , call and the phone is still connected to wifi but just the screen is black, please help me fix thiss.
Your screen is dead. Were you using a screen overclock?
gwenmillett said:
Your screen is dead. Were you using a screen overclock?
Click to expand...
Click to collapse
yes before but for only short time and after that phone works for months then this happen
Hi!
I'm here to figure out if someone can help me.
I was using my phone normally, I was trying to unlock it when the screen flashed like 3 times with a blue color similar to the color of the screen when you are trying to unlock the device, it happened like three times, then I rebooted the phone and the screen is black and unresponsive. I can tell that the phone is working in the background because I can feel the touchscreen working, it's also charging, ringing and I can even answer phone calls, it's also connected to my Wi-Fi network, the phone is not damaged and I haven't dropped it recently (a few times some days ago but nothing serious). I'm wondering, is the screen dead? or maybe something's loose on the inside?