Serious display problem in my k20 pro - Redmi K20 Pro / Xiaomi Mi 9T Pro Questions & Answe

When i turn off the display, by double tapping or pressing power button, After that pressing power button again or double tapping wont wake the display on. After a long time period the ambient display might show up but that is becoming rare day by day, every day this period of nightmare is increasing. Now I'm even afraid to turn off the display so that it wont turn on again.
Sometimes when people call, makes the phone rings but shows nothing on the display.
Only way to forcefully wake the display is to pressing power button long time so that it will restart. But nowadays it doesnt even work!!!
Now, Im stuck, is it hardware or software problem??!?

Have you tried to install full fastboot rom from miui tool

how long u using k20 pro?

have you ever installing any tweaks for the screen?

GTRanushka said:
Have you tried to install full fastboot rom from miui tool
Click to expand...
Click to collapse
Nope, the fear of uncertain consequences by not properly doing it refrained me to do such(as its my brothers phone).

PiyasRahman said:
how long u using k20 pro?
Click to expand...
Click to collapse
It was bought in july, so approximately 3 months. the rom is indian(global) btw.

xNovaLeader said:
have you ever installing any tweaks for the screen?
Click to expand...
Click to collapse
Nope, on behalf of my brothers usage it is assured that no tweaks or third party kind of things was installed nor tweaked(bcz he doesn't know that much about all this except messenger, fb, Instagram and pubg )

Excalib3r said:
Nope, on behalf of my brothers usage it is assured that no tweaks or third party kind of things was installed nor tweaked(bcz he doesn't know that much about all this except messenger, fb, Instagram and pubg )
Click to expand...
Click to collapse
iff u affraid or dontknow much about flashing other miui to test it out then try send the phone to service center..last time i had an issue almost same as you with my older phone..its appear something is broken inside the phone connected to the screen..not by softwere..

Excalib3r said:
When i turn off the display, by double tapping or pressing power button, After that pressing power button again or double tapping wont wake the display on. After a long time period the ambient display might show up but that is becoming rare day by day, every day this period of nightmare is increasing. Now I'm even afraid to turn off the display so that it wont turn on again.
Sometimes when people call, makes the phone rings but shows nothing on the display.
Only way to forcefully wake the display is to pressing power button long time so that it will restart. But nowadays it doesnt even work!!!
Now, Im stuck, is it hardware or software problem??!?
Click to expand...
Click to collapse
That's just a software problem.
Why use double tap? Just the quick ball.

Hey i had same issue with my k20 pro too
I purchased it on 22nd of july indian varient
Sadly its an hardware issues at least according to service centre guys
They had to replace my motherboard now after changing, it works fine
Hope it doesn't happen again

RebornCheiko said:
That's just a software problem.
Why use double tap? Just the quick ball.
Click to expand...
Click to collapse
no..i think this is hardwere problem...not softwere..

Same problem
I have also the same problem happened today plzz help me bro,how can I fix it

Redmik 20 display issue
IAM having the same issue. And now my redmi k20 is not responding as if it's switch off its not displaying anything does anybody know what is happening whats the problem

Same issue bro have u found some solution plzz let me know

my Redmi k20 pro display problem
Hi xda developers
After wetting the phone with a hand sanitizer and using the same wetness of the screen, I played the online game and put it in automatic game mode and rested for a while...
After waking up, I noticed that the phone was turned off, which was turned on by holding down the power button, but the screen is off...
Currently, only vibrators and notification lights work for the phone, and the phone is organized by a computer.
Also, the phone is charged and its sound can be heard while connecting it to the charger, and its sound can be heard in the same way to lock the screen.
Does anyone have an idea?

Omg this is what I'm searching for..
Excalib3r said:
When i turn off the display, by double tapping or pressing power button, After that pressing power button again or double tapping wont wake the display on. After a long time period the ambient display might show up but that is becoming rare day by day, every day this period of nightmare is increasing. Now I'm even afraid to turn off the display so that it wont turn on again.
Sometimes when people call, makes the phone rings but shows nothing on the display.
Only way to forcefully wake the display is to pressing power button long time so that it will restart. But nowadays it doesnt even work!!!
Now, Im stuck, is it hardware or software problem??!?
Click to expand...
Click to collapse
I'm also having the exact same problem with my k20 indian variant. Started when I was on miui 11. Thought software issue. Updated to miui 12 still the same. When turn off screen using power button, or time out screen, goes off. After that not able to turn on display by pressing power button or double tap. No AOD , no fingerprint icon. But for some time sound's playing. But sometimes automatically display comes. Sometimes it reboots.
I tried rebooting by pressing and holding power button, the vibration came but no display. But after sometime, display comes. Now almost everytime when display turn off, I'm having this issue. It is really annoying. Have you found a solution? Please update your experience..........

Excalib3r said:
When i turn off the display, by double tapping or pressing power button, After that pressing power button again or double tapping wont wake the display on. After a long time period the ambient display might show up but that is becoming rare day by day, every day this period of nightmare is increasing. Now I'm even afraid to turn off the display so that it wont turn on again.
Sometimes when people call, makes the phone rings but shows nothing on the display.
Only way to forcefully wake the display is to pressing power button long time so that it will restart. But nowadays it doesnt even work!!!
Now, Im stuck, is it hardware or software problem??!?
Click to expand...
Click to collapse
Same problem here with me as well.....did u solve this?? if u have, pls help me..

same problem ! Someone please help ;_;

Just go to service center guys. Even better if you have warranty

Sudhansu Sekhar sahoo said:
I have also the same problem happened today plzz help me bro,how can I fix it
Click to expand...
Click to collapse
I experienced this problem few months ago. Luckily it was still under warranty and the service center replaced the motherboard for me free of charge.

Related

Power button not working right on HTC Diamond

Hi, I cleaned the screen of my HTC Diamond with a bit of alcohol and a pice of tissue and it seems that the alcohol got inside of the Power button. Now, every time I try to turn the screen on by touching the power button, it turns the screen on but it dispays a message that says: "Warning: Power will be turned off and you may lose data if you have not saved them. Do you want to continue?"
If I click YES, it reboots the phone, If I click NO, then its ok. That is fine, but the problem is when I want to turn the phone off. It's impossible. It will keep trying to reboot.
Does anybody know what can I do? I am really worried.
One solution could be to make some other button from the phone to act as the power button (like the Home button that is rarely used). How can I do that?
Please help!!!!
Thank you
Hi,
I have the same problem.
Did you already find an answer ?
No, I didnt find the solution. I tried to fix the hardware but didnt succeed. So, I created a dummy file to emulate the poweroffwarning.exe that pops up when you long press the power button.
Solution
Hello, I have one AT&T TITL 8925 that upgraded to Windows Mobile 6.5
After the new software was loaded I saw same behavior on my phone.
When the phone is ON and I pressed the power button sometimes it do not respond, and others I received the warning message "power will be turned off and you may lose data if you have not saved them..." My first tought was that it is because the processor is slow to this new software release, or maybe my phone is damaged. I was working perfectly with previous (light version) release so my final guess is that this sw requires more uses of the processos.
Anyways what I have been doing is before turing it off I press the red button or hang up button, and after this if I press the power button it works fine (No more warnings). I have some theories but I will keep doing the same
Hope this partial solution helps you as it does for me.
Regards
Jerry
this is not working for me :| the problem is i can't use my power button not even to open my display when it goes to sleep :|:| i don't know what to do guys please help me
You can use the Stylus to awake the phone, instead of using the power button. You can also use TouchLockPro, to suspend the device, so you do not need the power button for that too.
Also you can set the phone to awake on pressing any key (Windows Mobile Setting), but be sure to have a good locking tool, which makes sure you do not have bogus calls and it goes to sleep again fast enough, otherwise it will drain battery.
I have the same problem.
Anyone solved this one?
I have the same issue and this is not a hardware problem. Strange since even updates/changes of the rom do not correct the issue. Did anybody find a solution for this...?
Well.. ive had this problem just ones.. I was walking downtown with my diamond in the frontpocket of my jeans (face down), after about 3min. of walk, it started to rain (big drops), and my clothes got completely wet, i turned around emidietly, to walk back to home. When i got home after 3 more min. i layed the phone on the table, and then i could hear there were somethibg wrong.. The "turn off" sound came, and the notification kept on coming up, even though i pressed No, as if i were just holding the power button down.. Then i began to press the power button continuesly for about a 100 times, and to my surprise then it stopped and have functioned perfectly for about 2 month now.. Something tells me theres some serius promlem with the smallest kind of moisture near the power button on this phone..
Yes this is hardware related.
If you take a look at the inside of the powerbutton, there are 2 points making contact when you press the button.
If you press it, the software will recognize this and the screen will turn off.
If you press it long enough you'll get the "Do you want to turn off your device" message.
But, if water gets underneath the button, the 2 points may be making contact, because water/alcohol conducts.
In this way you'll get that message.
The button is very weak. Due to this, it may not properly work if you have used it for a long time.
I think that could also be a reason why you constantly get that message.
[ElCondor] said:
Yes this is hardware related.
If you take a look at the inside of the powerbutton, there are 2 points making contact when you press the button.
If you press it, the software will recognize this and the screen will turn off.
If you press it long enough you'll get the "Do you want to turn off your device" message.
But, if water gets underneath the button, the 2 points may be making contact, because water/alcohol conducts.
In this way you'll get that message.
The button is very weak. Due to this, it may not properly work if you have used it for a long time.
I think that could also be a reason why you constantly get that message.
Click to expand...
Click to collapse
Hi! on one of my diamond, the power button off from the board. So the black little board with the button itself is not part of the complete circuit anymore... if someone know the hw testpoint for that it would great please.... i see a few TP around, but if i just start sorting them i just going to kill it...I use to flash phones with TP so is not new for me , but i find nothing for diamond.
I have a similar issue. Mine seems like it is almost stuck on, so it wakes its self up all the time, meaning a full charge lasts an hour or two. Then when it runs out of battery it tries to switch itself back on, so goes through a continuous cycle of vibrating and beeping until the battery is removed. The gf finds it very annoying at 3am lol.
Don't recall mine getting wet, but it's possible it could have got damp at some point, but it's been doing this now for about 3 weeks.
Tried a hard reset with no luck.
[ElCondor] said:
Yes this is hardware related.
If you take a look at the inside of the powerbutton, there are 2 points making contact when you press the button.
If you press it, the software will recognize this and the screen will turn off.
If you press it long enough you'll get the "Do you want to turn off your device" message.
But, if water gets underneath the button, the 2 points may be making contact, because water/alcohol conducts.
In this way you'll get that message.
The button is very weak. Due to this, it may not properly work if you have used it for a long time.
I think that could also be a reason why you constantly get that message.
Click to expand...
Click to collapse
I can see that how to remove the power button from the video showing how to replace the screen. Any idea if once removed the button can be fixed, if not can you get replacements?
2004mark said:
I can see that how to remove the power button from the video showing how to replace the screen. Any idea if once removed the button can be fixed, if not can you get replacements?
Click to expand...
Click to collapse
I think I should send it to HTC, and ask them to do it. Or go to a repair centre. But I should not try it myself, because it can be dangerous for the diamond.
Also try searching on ebay, there might be the parts you could use.
Good luck!
is there a way to remap the power button?
my diamond face same problem since this afternoon, arrrrgghhhh!!!
- blocking hwbutton1, hwbutton2, hwbutton3, hwbutton4, hwbutton5, hwbutton6, hwbutton7 >>>> NO LUCK
- hard reset >>> NO LUCK
guys, any of you solved the problem yet
youtube.com/watch?v=Q4SEQ6AUFOI
My Sony X1 have some strange problems with the power button. When it goes into sleep mode, I can not wake it up with the power button, all I can do is to soft reset. Sometimes it does not go into sleep mode either , it just "wake up" all the time. I don't know what's wrong with it, tried Hard reset but no use .
ANyone had this problems before?
@
The only way to solve this is to leave the phone near your laptop heat vent ( fan) . hot air from it might help you to get the power button up and running. But if that to doesn't work then i'm afraid thats bad.
Current sol :
1. download SU2U ( search threads )
2. go to the settings and make the " lock when stylus inserted" option ON
3. Change the screen turn off time to 5 secs..
So , to unlock , remove stylus , to lock -> insert it back ( its turns off the back light within 5 sec )
Less annoying
elektros said:
youtube.com/watch?v=Q4SEQ6AUFOI
Click to expand...
Click to collapse
thanks for this link, i accidentally tear off my power button flex. now i could turn it on again. Thanks elektros

backlighting turns off too soon, and turns off sound.

Hello all,
When making a call the screen dims WAY too fast then turns of in 10 seconds. is there an option to leave it on all the time, till I decide to turn it off?
It's quite the pain in the A** when I need to enter numbers like when I recently had to activate my XP COA by phone..PHEWW what a nightmare.
The other problem I have is randomly I realize the volume for both are on off..
I dont know how this happens and if I'm to blame but sometimes it happens even if I dont use the phone to make calls I realize the off button is pressed..
Any way to remove the speaker button totally? I wouldn't mind doing it in the settings area..
anyone
can anyone help me?
backlight settings
hi m8, click>start>setting>system, then you should see backlight click this and it gives you the backlight settings if on battery power or external power, hope this helps
regards
timbo2272

[Q] my htc one cant be turned on after deep sleep

My HTC one developer edition won’t wake up after deep sleep the screen does not turn on i have tried to press power button and volume down and no response except for flashing back and home buttons. When I call my phone I can hear a tone from the other phone but no response from the HTC one. I have also tried to hold the power button and the only response was flashing of the touch buttons. I tried to connect it to my PC it appear in device manager but if i tried any command (no device found). alsoI noteced that when i connect it to the charger no orange or green LED lights
Any advice would be helpfull.
Try holding power and volume down pressed while holding a bright light directly over the proximity sensor
wow It worked !!
thanks a lot dgtiii
But do you have any idea why did this happen ?
gh130 said:
wow It worked !!
thanks a lot dgtiii
But do you have any idea why did this happen ?
Click to expand...
Click to collapse
Awesome, I'm glad it worked! Sometimes the proximity sensor is buggy it seems. The feature is there to prevent accidental touches from turning the phone on if it's in a pocket or purse or something - if the sensors sees darkness, it will not allow the phone to turn on. Sometimes this feature is buggy or it sticks, and the bright light positively tells the proximity sensor the phone is not in a pocket and should turn on or reboot.
Exact same issue as the original poster, exact same resolution.
Thanks for the help. That was an exceedingly unexpected cause. I am curious as to how/why exactly it is so buggy, would anyone happen to know?
EDIT: I am curious if temperature might be related actually. I have had the phone for nearing a year, but this is the first time I have had it where the local temperatures have dropped below freezing, and my phone was indeed quite cold when I picked it up, but that could have been related to it being off as to this issue, it was on the charger, which traditionally keeps it fairly warm regardless. The phone itself has been rebooted a couple of times since I got it, lost power twice, but has not been off or rebooted in weeks before this, as is general for my usage.

[Q] Does your HTC ONE M7 do this?

When going to bed tonight do these steps.
1. Put your phones brightness display on the lowest setting
2. Plug your phone in for an overnight charge, do not "turn off" your phone.
3. Wake up in the morning
4. Click the power button on your HTC ONE M7
Did the screen turn on? Are the Soft Keys the only part that lights up?
I've been able to replicate this problem over and over on 3-4 different HTC ONE M7's. For some reason the phone's display will not turn on in the morning. The only way to get it to is to either hold down the power button for a few seconds and the restart screen will pop-up which activates the screen again. Or, to do a complete restart.
Eventually the screen starts working again like normal after fiddling with it for 15-20 minutes...
I believe this is either a KitKat problem or light sensor problem or both. I do know this issue was never around before the KitKat upgrade months back.
Soul TKR said:
When going to bed tonight do these steps.
1. Put your phones brightness display on the lowest setting
2. Plug your phone in for an overnight charge, do not "turn off" your phone.
3. Wake up in the morning
4. Click the power button on your HTC ONE M7
Did the screen turn on? Are the Soft Keys the only part that lights up?
I've been able to replicate this problem over and over on 3-4 different HTC ONE M7's. For some reason the phone's display will not turn on in the morning. The only way to get it to is to either hold down the power button for a few seconds and the restart screen will pop-up which activates the screen again. Or, to do a complete restart.
Eventually the screen starts working again like normal after fiddling with it for 15-20 minutes...
I believe this is either a KitKat problem or light sensor problem or both. I do know this issue was never around before the KitKat upgrade months back.
Click to expand...
Click to collapse
I#ve never run across that problem but I know when I enable "ScreenOn" the screen stays on all night and if I just let my phone sit with screen on (because I fell asleep texting ) the screen will be off in the morning.
Soul TKR said:
When going to bed tonight do these steps.
1. Put your phones brightness display on the lowest setting
2. Plug your phone in for an overnight charge, do not "turn off" your phone.
3. Wake up in the morning
4. Click the power button on your HTC ONE M7
Did the screen turn on? Are the Soft Keys the only part that lights up?
I've been able to replicate this problem over and over on 3-4 different HTC ONE M7's. For some reason the phone's display will not turn on in the morning. The only way to get it to is to either hold down the power button for a few seconds and the restart screen will pop-up which activates the screen again. Or, to do a complete restart.
Eventually the screen starts working again like normal after fiddling with it for 15-20 minutes...
I believe this is either a KitKat problem or light sensor problem or both. I do know this issue was never around before the KitKat upgrade months back.
Click to expand...
Click to collapse
I can try it out. I'll report in the morning. ?
Sent from my HTC_0P6B using Tapatalk
Anyone?
Nobody?
Sent from my HTC6500LVW using Tapatalk
Beullar.... Beullar?
with my phone its just a 5 second lag sometimes, and i click the power button again to make sure i clicked it and it instead locks itself back. The third click however, everything works fine.
this has been happening to me for the longest its very irritating, i notice it happens whenever i fall asleep, a nap during the day or when i wake up in the morning its really annoying
Well glad to see I'm not the only one.
I have provided this thread link to HTC and reported the problem. Requested that they chime in if they have any questions.
i had that issue
Soul TKR said:
I have provided this thread link to HTC and reported the problem. Requested that they chime in if they have any questions.
Click to expand...
Click to collapse
Yes I had the same issue as the original post.Long story short I ended up sending the device back. The new one didn't suffer from this problem. This was back in October of 2013.
Same issues, it's probably light sensor:
http://forum.xda-developers.com/showpost.php?p=49918380&postcount=9
nitephlight said:
Same issues, it's probably light sensor:
http://forum.xda-developers.com/showpost.php?p=49918380&postcount=9
Click to expand...
Click to collapse
Nope. I already tried the light sensor calibration trick. It didn't work unfortunately. I ended up swapping out 4-5 HTC ONE's before it worked correctly.
yup, I tried the trick as well a few more times and could not wake the screen either. generally I'm tolerant of stuff like this because I assume it is the byproduct of repeated flashing and combo of mods.. but I I recall this happening quite early on in ownership and now it's back. (was AOSP now Sense base). sigh

Power button doesnt wake up the phone.

Hi,
My note 8's screen got damaged a month ago, but
from past two days the power button seems to be
unresponsive.
I have to press it atleast 10-15 times for my screen
to wake up.
Even if the screen doesnt turn on by a single click,
the usual touchscreen functions still work.
Ex: I can still open the particular app by clicking the screen
on the specific area.
Kindly help.
rockz1991 said:
Hi,
My note 8's screen got damaged a month ago, but
from past two days the power button seems to be
unresponsive.
I have to press it atleast 10-15 times for my screen
to wake up.
Even if the screen doesnt turn on by a single click,
the usual touchscreen functions still work.
Ex: I can still open the particular app by clicking the screen
on the specific area.
Kindly help.
Click to expand...
Click to collapse
There's nothing any of us can do to help you when it's a hardware issue like this. You need to open the back of the phone using a heat gun to loosen the glue and then take the power button out and replace it with a new one.. There's nothing else that can be done and I would suggest that you not shut the phone down or let the battery die out because then you may not be able to turn it back on until you get the power button taken care of!
MrMike2182 said:
There's nothing any of us can do to help you when it's a hardware issue like this. You need to open the back of the phone using a heat gun to loosen the glue and then take the power button out and replace it with a new one.. There's nothing else that can be done and I would suggest that you not shut the phone down or let the battery die out because then you may not be able to turn it back on until you get the power button taken care of!
Click to expand...
Click to collapse
Hi MrMike2182,
Thanks but let me elaborate the issue.
The power button seems to be working fine because it takes approximately 10 to 15 clicks to turn on the screen (sometimes 1 or 2 click)
Let's say that I click the power button and the screen doesn't turn on, the screen functions work fine despite showing black screen.
Ex:
1. If I click on screen location where samsung music is placed and open it, and if I and click on the location of the play button, it plays the music just fine.
2. If I click on the restart button when the screen is black (not turned on), the phone does restart. The Samsung logo lits up just fine. (Mensing to say, the bootup process is not affected)
Also, note that if I successfully manage to turn on the screen after clicking the power button 10-15 times and if I put it to sleep again. I can easily turn on if I click the power button immediately (within the span of 2 seconds).
The problem persists only if the phone is kept I'd for 5 to 10 minutes.
rockz1991 said:
Hi MrMike2182,
Thanks but let me elaborate the issue.
The power button seems to be working fine because it takes approximately 10 to 15 clicks to turn on the screen (sometimes 1 or 2 click)
Let's say that I click the power button and the screen doesn't turn on, the screen functions work fine despite showing black screen.
Ex:
1. If I click on screen location where samsung music is placed and open it, and if I and click on the location of the play button, it plays the music just fine.
2. If I click on the restart button when the screen is black (not turned on), the phone does restart. The Samsung logo lits up just fine. (Mensing to say, the bootup process is not affected)
Also, note that if I successfully manage to turn on the screen after clicking the power button 10-15 times and if I put it to sleep again. I can easily turn on if I click the power button immediately (within the span of 2 seconds).
The problem persists only if the phone is kept I'd for 5 to 10 minutes.
Click to expand...
Click to collapse
Ok based on what you said now I don't believe there's anything wrong with your power button and when you press it and the screen doesn't turn on, in reality it actually is on and it's possibly damaged which is why you can still use the screen functions with the black screen. Whatever type of damage you say happened to it could be causing the backlight to not work but the screens touch function is fine.. Try rebooting into recovery mode and select to clear the phone's cache only and see if it helped anything.. If it doesn't help anything it's pretty much a screen hardware problem and you'll still have to get into the phone's internals..
MrMike2182 said:
Ok based on what you said now I don't believe there's anything wrong with your power button and when you press it and the screen doesn't turn on, in reality it actually is on and it's possibly damaged which is why you can still use the screen functions with the black screen. Whatever type of damage you say happened to it could be causing the backlight to not work but the screens touch function is fine.. Try rebooting into recovery mode and select to clear the phone's cache only and see if it helped anything.. If it doesn't help anything it's pretty much a screen hardware problem and you'll still have to get into the phone's internals..
Click to expand...
Click to collapse
Thanks,
Unfortunately, even factory resetting the phone didn't work out.
Anyway, I will take for service.
Hopefully it might resolve the issue
rockz1991 said:
Thanks,
Unfortunately, even factory resetting the phone didn't work out.
Anyway, I will take for service.
Hopefully it might resolve the issue
Click to expand...
Click to collapse
Since the factory reset didn't work, then unfortunately it really is a hardware issue.. I think you need a new screen..
I have the official led cover case, just opening the case will turn the screen on... Just a temp fix until you can get it repaired maybe.
stonedpsycho said:
I have the official led cover case, just opening the case will turn the screen on... Just a temp fix until you can get it repaired maybe.
Click to expand...
Click to collapse
Thanks stonedpsycho. I will have a look at it.

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