Black screen on my 9T - Redmi K20 / Xiaomi Mi 9T Questions & Answers

I have been using my Xiaomi Mi 9T for less than a month, suddenly it turned off; emits the battery charging sounds when I connect it, as well as the sounds on and off, but the screen is completely black without letting me access or giving me the possibility to make a factory reset, someone who can help me with a possible solution.
Thanks.

hadaos said:
I have been using my Xiaomi Mi 9T for less than a month, suddenly it turned off; emits the battery charging sounds when I connect it, as well as the sounds on and off, but the screen is completely black without letting me access or giving me the possibility to make a factory reset, someone who can help me with a possible solution.
Thanks.
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Click to collapse
Try to press the power button for a while, like 10 or 20 sec

Also try it this way and the screen is still off, it vibrates when it turns off and sounds when it turns on again but the screen remains black.

hadaos said:
Also try it this way and the screen is still off, it vibrates when it turns off and sounds when it turns on again but the screen remains black.
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Click to collapse
hey have you fix yours? i also got this problem

have you tried holding power button and volume up for a solid 20-30 secs? this has resolved the issue for me in past, but we might be having diff issues

Related

Help! White screen and no reset

Hello,
I have a Wizard g4 with hard SPL and this weekend it decided to go crazy. Here is the problem:
- When I turn it on, the screen goes white, blue and orange LEDs are lit and the device vibrates non stop. The camera white led is also lit.
- The only way to turn it off again is removing the battery. reset is useless.
- I try to put it on bootloader mode using the camera+reset and nothing happens
- Trying to turn it on with camera pressed also doesn't work
- Trying to turn it on with voice+network pressed doesn't work either
- When I connect it to charger or USB, it automatically does de same (white screen, etc) described above
I've been using Hornet win 6.1 ROM for some time and was very happy with it.
Is there any hope or am I effed?
Seriously? Nothing?
Diamened said:
Seriously? Nothing?
Click to expand...
Click to collapse
You don't say anything about doing a hardreset. Did you try it?

Screen keeps turning off and on + sets brightness to 100

Hey guys,
i have a serious problem, which happens really often lately. like 10 times a day. The screen just turns off sometimes. The touch-functionality is still working. I can feel the fingersensor "unlock" the Zuk Z1, but the screen just stays off. Then i try to press all the buttons and sometimes the screen turns on again. But sometimes it just turns on after some seconds even though I didn't touch it at all.
First I thought that this is a hardware issue, maybe a loose contact. But recently a new problem showed up. The screen brightness just goes up to 100%. I turned off auto-brightness and move the slider. Nothing happens. Restarting always fixes it. But mostly after 1-60 seconds it goes back to normal.
Any ideas what might be the problem? Or what I could try?
I haven't rooted the phone and its the newest CyOS version.
Cheers, Oliver
Perhaps you are using the flipcover with magnetic auto switch off when you close the case?
OlivBlum said:
Hey guys,
i have a serious problem, which happens really often lately. like 10 times a day. The screen just turns off sometimes. The touch-functionality is still working. I can feel the fingersensor "unlock" the Zuk Z1, but the screen just stays off. Then i try to press all the buttons and sometimes the screen turns on again. But sometimes it just turns on after some seconds even though I didn't touch it at all.
First I thought that this is a hardware issue, maybe a loose contact. But recently a new problem showed up. The screen brightness just goes up to 100%. I turned off auto-brightness and move the slider. Nothing happens. Restarting always fixes it. But mostly after 1-60 seconds it goes back to normal.
Any ideas what might be the problem? Or what I could try?
I haven't rooted the phone and its the newest CyOS version.
Cheers, Oliver
Click to expand...
Click to collapse
Thanks for the reply,
I havent thought of that before but it is not the cause of the problem.
1. I have a leather case
2. When I take the phone out of the case the displays stays dark
I just did a factory reset today in the morning and the problem already showed up again. So! annoying!!!! Will send back the device I guess
i have lenovo zuk z1 . actually i am getting a problem in this phone . after locking the phone at every seconds light turn on and get turn off on the display. i saw so much on the setting but i didnt get any setting .
The same problem is being arrising with me..please someone help. what should i do..

No display on moto g4 plus...Just a black screen

It was working fine till yesterday but when I tried to open it today it is showing nothing just the black screen. It seems to be working as tried to call on the phone. I even flashed the latest rom in the fastboot mode but still there is only a black screen.
Same problem i have if you found the solution let me know please.
Sent from my iPhone using Tapatalk
is the notification LED is blinking when you connect your phone to your pc?
siddhesh9146 said:
is the notification LED is blinking when you connect your phone to your pc?
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Click to collapse
Yes
Sent from my iPhone using Tapatalk
Try to enter bootloader mode by pushing and holding power and Vol Down together for 15 sec
samipaswaal said:
Yes
Sent from my iPhone using Tapatalk
Click to expand...
Click to collapse
I think your phone is hardbricked.
try this guide : https://forum.xda-developers.com/moto-g4-plus/how-to/moto-g4-plus-hardbrick-solved-guide-t3657761
Hi all. I not sure mine is hard bricked. The screen won't show any signs of life, but the sound is there. It vibrates when booting and rings when I call my number. But the screen is dead. Just to confirm, I didn't install anything, I didn't update, and I didn't dirty flash anything. I think it just discharged. The light is blinking, but other than that nothing more than ringing, during which the screen doesn't light up. Holding vol. down + power, no matter how long, does nothing. Any ideas?
m.mishka said:
Hi all. I not sure mine is hard bricked. The screen won't show any signs of life, but the sound is there. It vibrates when booting and rings when I call my number. But the screen is dead. Just to confirm, I didn't install anything, I didn't update, and I didn't dirty flash anything. I think it just discharged. The light is blinking, but other than that nothing more than ringing, during which the screen doesn't light up. Holding vol. down + power, no matter how long, does nothing. Any ideas?
Click to expand...
Click to collapse
it should atleast show charging screen when device is off, and Bootloader screen too..
It looks more a hardware failure..
Go for service center...
____Mdd said:
it should atleast show charging screen when device is off, and Bootloader screen too..
It looks more a hardware failure..
Go for service center...
Click to expand...
Click to collapse
Hardware failure indeed. When I ring it, it actually does ring. Of course, there's no way to pick up the call with a dead screen
That screen was recently replaced and is still on warranty. I'll send it back. For now, I decided to make a good thing out of a misfortune - with my Moto G4 Plus out of action I bought myself a Moto G5S Plus. :laugh:

Hello everyone please help request

Recently there is a problem with the device. The power button does not turn the device on and off, sometimes vibrating but the screen does not wake up even when connected to the power supply.
Double tapping does not respond. Sometimes the screen will turn on for a second and turn off.
Sometimes everything looks right.
When this happened, the device warmed up around the power switch.
So I replaced the lighting component and now the problem continues random without the device warming up.
Does anyone have any idea what the problem might be and how to solve it?
Thanks so much everyone.

Galaxy s8 weird screen problem

So, whenever my battery gets bellow 14% my galaxy starts to have a weird problem.
My screen basically turns off whenever I open some apps or watch a full screen video on twitter (not every single video makes the screen turn off, only some of them)
When this happens I can lock and unlock the phone and the screen will start to work again, but as I said, whenever I open a video or a app the screen turns off.
I don't know what is happening and I can't find answers to this problem, I've seen online that some people are having the same problem as me but no one had answers for why this happens.
My s8 is the SM-G950W
If your screen turn on when you press power button then there might be some issue with your software.
Do a factory reset.
maxi65 said:
If your screen turn on when you press power button then there might be some issue with your software.
Do a factory reset.
Click to expand...
Click to collapse
As the battery level gets lower, the problem gets more apparent, here's a video.
drive.google.com /file/d/1-4kLMH9oII9NK5JWl7ZxDnT-ILirsdBw/view
I'll try to do a factory reset to see if it fix the problem.

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