Xiaomi Mi 9T Pro Middle part of screen not working - Redmi K20 Pro / Xiaomi Mi 9T Pro Questions & Answe

Hello,
I bought the MI 9T Pro, and during my tests I've observed a weird issue.
When dragging the finger vertically on the screen , exactly in the middle it stops working. Mostly is observed when trying a paint type of app, is not recognizing the fingers when arriving in the middle of the screen. sometimes it works.
I tried doing a reset to factory settings but it didn't helped.
The phone has MIUI 11, i can't rollback to a previous version like MIUI 10, as i think this is a software issue and not a hardware one.
Any advices?
Kind regards.

Screen record in the miui testing app & post
(*#*#6484#*#*) -> Test touch sensor
Or can even test in apps like display tester or Antutu benchmark

Hello, i tried also this method. The test is assed but when nearing the centre of the screen i can see how a diagonal line goes for aproximately 1 centimenter straight vertically an after it passes the center goes back to drawing diagonally. A made request also to Xiaomi global support. Gave this advice and also update to the latest patch. Still didn't worked.
In the end i returned the phone and buyed a new one.
Kind regards

Related

Touch issues / Sensitivity issues after Nougat update

Okay so I wanted feedback regarding this whether someone else is experiencing this or not.
I have gradually observed during the last few days that a lot of my touches to click have gone unresponsive in Nougat. Initially it was something that I hadnt quite noticed but slowly the trend became obvious. Now dont get me wrong, this would happen a few times here and there with lollipop and MM as well, but the rate is far higher now on Nougat. Especially when typing on the keyboard this means mis-spelled words, missed letters, and accuracy is far worse now.
Has anyone else observed this or is it just me?
Just got my xcover 4 with nougat installed i have the same issue.
The sensitivity is low and i need to press a bit higher finger force to respond.
Even with sensitivity (glove mode) set to on things get worse.
I'm seeing the same thing. What is strange is that I'll see the button highlight/depress, but no action occurs. This is on multiple apps.
On what device/OS?
Sprint Note 5 on Nougat
Did you try gloves mode? Does it work?
the same for me on 920cd and the same iusse using S pen
I contacted samsung Greece about the existing problem.
I reported the problems me and you guys have and the tech support told me that your problems exist because you did not factory reset the devices before upgrading to nougat.
Anyone tried to contact samsung about the problem?
They dont know anything about it.
facing same issue screen lagging in note 5 sm-n920s also tried custom rom but still lagging in typing and scrolling on facebook
I have the same problem on my xcover 4 here!!
When I run the the touch screen test, touch screen responds well, but when I want to write a message or to scroll the home screen Its very annoying. It looks like software problem.
please help
Hi guys.
I have 2nd piece of Xcover 4 SM-G390F (first was change by seller for new one) and had the same problem. First 2-3 days all work perfect.. I have installed my applications, work perfect for two days, but after this... --After wake, display react only in centre area, 1 centimeter from display border no reaction or react on xxx touch. After few seconds (20-30) display react on full range, but with lags... So... I go for support to Samsung official at CZE.
Support tells me, that they don't know about this problem, that I'm 1st who has this problem... And some other bull... about unofficial sell and any other. So I post them IMEI and they let me know, if my distribution is official or not, and we'll see what next. They recomend me to go to service center, where somebody looks on my SM. So I see tomorrow.
ROM - official Android 7 Nougat from start using (not updated from other version)
Deleting apps - no effect
Safe mode - no effect
Factory reset - no effect
Apps to calibrate screen - no effect

Touch screen unresponsive at the very bottom

All of a sudden the lower part of display (about 7 mm) has become unresponsive to touch which means no more gestures (swipe up to get to home screen is not working) e struggle to use the classic navigation buttons.
Sadly I had the same issue in my mi5 but in that case phone had the issue since the unboxing.
I'm starting thinking the xiaomi touchscreen tend to be more fragile than others.
Now I'm waiting for gearbest support.
Anyone has any advice or similar experience?
I made a screen recording
https://youtu.be/bIOUK1V56Ao
No one? Any advice?
jendrassik said:
No one? Any advice?
Click to expand...
Click to collapse
Regarding Xiaomi Quality
While climbing into my truck, I dropped my Mi8 from a height of about 4 ft on accident and it landed flat on its face , on the concrete. Freaked out, I left it laying their for about a minute fearing that the screen had been smashed into a million pieces. However, I picked it up to see that it was fine, and not a single scratch. So I immediately went out and bought the Love Mei 360 case.
Anyway, regarding your touch issue, you should really provide more some information about how this issue came about, what rom were you using, did the phone get wet, etc.
Also, I had an issue with my Mi8 soon after unlocking the bootloader where the top part of the screen would not register my touches, I first tried recalibrating the screen using Miui hidden settings app, the test is called QMMI ( I think) and if I remember correctly there are several menus of testing that also calibrate the screen for me this worked and for good measure I reinstalled a Miui rom and havent had the issue since.
Try it, hopefully that is the only issue. If you are using a AOSP. It's possible that you have a driver issue. So before sending the phone off for service its worth testing.. If you are on stock and still have a locked bootloader, I would try resetting the phone before trying anything else.
Good Luck.
Some gravedigging, but the question is still on the table - have you managed to fix it?

mi 9 multi touch problem

My mi 9 seems to be able to only detect 1 finger. Completely wiped phone and problem still persist. Anyone with same issue or able to fix issue?
I have the same problem. Have you found any solution?
youtube.com/watch?v=dLa-oHLig7U
I have that same problem. Could you help
Happened the same issue to my Mi9. Multi touch was working normally but suddenly it stopped working while I was zooming on a web page. Then I made a factory reset but still didn't work. Today I updated to Miui 12 hopping the problem would be solved but still no success. I think this bug is related to Android 10 as I saw elsewhere someone rolled back to Miui 10/Android 9 and things got to normal. On the other hand this is not a hardware failure for sure since multi touch keeps working normally on apps running in game turbo mode.
So, has anyone found how to kill this annoying bug?
Thanks for any help.
ive been searching everywhere how to fix this. i already email xiaomi about this issue. still didnt find clue how to fix this bug. still hoping that xiaomi will fix this issue.
This issue is a shame for Xiaomi!
As far as I know the only solution is to downgrade to Miui10 and stuck on this version or take the risk to upgrade to Miui11 (not recommended for obvious reasons) or the fresh new Miui12. So far I've been using the "turbo game" thing to workaround the bug. I had to install some alternative apps from Google Play (such as Chrome Beta, other gallery app, Google Maps Go...) to use instead of the stock apps so I can use them with "turbo" and get pinch to zoom working. This is not the best way to solve the issue -- the ideal is to get multi touch back working again without the need to resort to any tricks -- however it works very well. Maybe one of these days I'll get some patience to setup the good old Miui10 again...
i also have this ghost touch on the upper part of the screen. it came same time as the multi touch issue. it cant even fix by game turbo. i cant even play games normally like moba or fps game. i dont know if its just me have this ghost touch issue. its a big shame for xiaomi flagship phone?
No news about this issue? Everything works fine with Pixel Experience in my MI9 but multitouch. I remmember I solved another problem (auto-rotate didn't work for the display) and I solved it flashing only last version of "persist.img".
Same here bro!
I bought my Mi 9 in February and everything worked well. I also upgraded to MIUI 12 with no problems at all, then suddenly multitouch stopped working.
If I flash Pixel Experience will the problem be solved?
03jack said:
Same here bro!
I bought my Mi 9 in February and everything worked well. I also upgraded to MIUI 12 with no problems at all, then suddenly multitouch stopped working.
If I flash Pixel Experience will the problem be solved?
Click to expand...
Click to collapse
No way, Installing PE doesn't solve the problem.
I'm going to try it with new kernels and FWs.
ommerus said:
No way, Installing PE doesn't solve the problem.
I'm going to try it with new kernels and FWs.
Click to expand...
Click to collapse
Let me know if it works
03jack said:
Let me know if it works
Click to expand...
Click to collapse
It doesn't work at all... nothing... so tired of this...
ommerus said:
It doesn't work at all... nothing... so tired of this...
Click to expand...
Click to collapse
Try to flash MIUI 10... I read somewhere it should work, because MIUI 10 is built on Android 9, which doesn't have this issue
same i have this issue, i tried miflash. the only workaround are miui 10 and game turbo method.
also i have this nonresponsive part of the upper screen, right where most game analog button placed. idk if this "dead touch" is connected to this multitouch issue
This was the first and probably the last Xiomi I bought. Back to iOS. Bought a second hand iPhone 11 in mint condition. Working rock solid! Crap Mi9!!!
renz555666 said:
i also have this ghost touch on the upper part of the screen. it came same time as the multi touch issue. it cant even fix by game turbo. i cant even play games normally like moba or fps game. i dont know if its just me have this ghost touch issue. its a big shame for xiaomi flagship phone?
Click to expand...
Click to collapse
Gnonymous7 said:
same i have this issue, i tried miflash. the only workaround are miui 10 and game turbo method.
also i have this nonresponsive part of the upper screen, right where most game analog button placed. idk if this "dead touch" is connected to this multitouch issue
Click to expand...
Click to collapse
Have the same problem here!!!
Upper screen DEAD
Annoying ghost touch on upper screen
Have to type multiple times because It keeps ghost touching...
Can't sell the phone, because of these issues...
Miss my Galaxy note
Is there a fix to this issue now? GameTurbo enhances the touch so that multitouch works. There must be a fix to this.

Redmi K20 Pro miui12 update stuck

Hi,
I bought my Redmi K20 Pro in February, and today(30/Jul/2020) i noticed that my phone is ready for OTA update to miui12 (from miui11). I downloaded the build and did what was asked on display. But now my phone just displays MIUI (in color) on the screen and is just stuck there for more than 3 hours now. Any way i can know whats happening and how can i fix this? I understand it takes sometime to update the phone but not this much time. I come from iOS where updates were finished in less than a hour, so this is a bit annoying to me
Please can someone help me with this??
Thanks,
Ravi.
It took a while for me as well, but I don't remember it getting stuck for 3 hrs. It was probably about 45-50 mins max, which is still longer than most updates have taken ever. Maybe someone else can chip in and tell you what the exact issue is.
Sent from my CPH2023 using Tapatalk
Just do a hard reboot (press on hold power button)
Mi 9T Pro ll Tapatalk
Let me know what you've tried to resolve this MIUI animation issue because when I installed the MIUI 12 from then my phone displays MIUI animation and then again ask for fingerprint password.
I contacted the Customer Support over chat. They suggested format however, I have more than 100GB of invaluable memories which I don't want to loose. Please help.

Question Question: Ghost touch problem at Mi 11 ultra. Ayone have same problem?

Hello community.
First, I apologize there may be some difficult to know what I want to say because of my poor english skills.
I bought CN version Mi 11 ultra last week. I have been using it but sometime I feel something wrong about touch input while gaming.
So I recorded video while playing game with touch position indication.
Here is the video.
It looks like happened when two finger input.
When problem happened, it seems like switching 2 touching position very very fast between currently touching.
It looks like only single touch is recognized in phone system...may be...
Anyone have same problem? And I expect someone have solution.
Yes, I've had it when typing on gboard and then I changed to SwiftKey and same issue
Sometimes a ghost touch makes the keyboard disappear
It happens less now I'm on 12.5.4 but sometimes still, there's an issue
Maybe related to notifications arriving at the top
I haven't figured it out yet or had much time to work on it
Touch quality was very bad , my old OnePlus 8 pro too much better touch sensitivity
I already asked in forum about that touch problem...
Touch function quality
Hi Recently i bought xiaomi 11 ultra Chinese version with global rom about a week ago, coming from OnePlus 8 Pro (that was my main device for last 8 months). Last week i noticed slow touch response and i feel the touch function was very slower...
forum.xda-developers.com

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