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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.
Hi,
I have a Problem with my mi8.
The Display flash
https://youtu.be/cLJ4-46QTsI
I think its a Hardware Problem
What you think ?
toniq1 said:
Hi,
I have a Problem with my mi8.
The Display flash
I think its a Hardware Problem
What you think ?
Click to expand...
Click to collapse
Turn off aod
Aod ?
toniq1 said:
Aod ?
Click to expand...
Click to collapse
Always on display. Sametimes it's help but it's probably fault of ambient light sensor or screen.
It is the same If aod Off
Not good
That's a common thing with faulty oled screens, it is a hardware issue
I have the same flashing screen when I turn the screen off before the aod is displayed. It does not happen all the time. Turning off aod does not help. I doubt that it is a hardware issue as the flashing started after updating to MIUI 11 - at least for me.
I have also this problem, started a while ago when I was on MIUI 10 after I installed some kind of dark theme
This indeed looks like a AOD fault cause turning it off solves the problem, and the latest version of AOD with custom picture customization, reduced this issue for me
But it also seems like it mostly happens when the ambient light is low so the automatic brightness reduces the screen light and AOD starts to flash
I hope it won't be a hardware problem
One other thing that I want to mention is sometimes it goes really bad and the screen starts flashing for a long time, in this case phone seems to become unresponsive as not touch and not the fingerprint sensor and infrared camera doesn't work at all
navzahed said:
I have also this problem, started a while ago when I was on MIUI 10 after I installed some kind of dark theme
This indeed looks like a AOD fault cause turning it off solves the problem, and the latest version of AOD with custom picture customization, reduced this issue for me
But it also seems like it mostly happens when the ambient light is low so the automatic brightness reduces the screen light and AOD starts to flash
I hope it won't be a hardware problem
One other thing that I want to mention is sometimes it goes really bad and the screen starts flashing for a long time, in this case phone seems to become unresponsive as not touch and not the fingerprint sensor and infrared camera doesn't work at all
Click to expand...
Click to collapse
ago是什么意思
beibei2 said:
ago是什么意思
Click to expand...
Click to collapse
It is used for past time if you're asking
So a little update on the flashing screen situation
I disabled auto brightness and set the brightness a little below middle of brightness bar and so far so good. No flashing here for a while
Also disabling the AOD completely solves the problem
Another update on the state of this flashing issue, after Android 10 update haven't seen any flashing so far, AOD display works fine, light sensor and automatic brightness work just fine.
I guess it was a software issue after all
I hope you have solved it. Do you have the anti-flick on?
Nikos kouk said:
I hope you have solved it. Do you have the anti-flick on?
Click to expand...
Click to collapse
Nope I don't
Anyone else who has this issue:
Try disabling hardware overlays in developer options, also check to see if the Game driver option within Developer options is set to default. Although its possible that this could be the beginnings of a hardware issue, it could also be a software related issue.
If none of the things that I mentioned work, i would try reflashing the stock fastboot rom. ( must be fastboot version)
Similar happened to me but i think this is not recoverable.
https :// youtu(dot)be / u1dnIb9SoAw
No matter what i do, it only flashes and nothing else is visible. Device purchased about 1.5 years ago.
koudy66 said:
Similar happened to me but i think this is not recoverable.
https :// youtu(dot)be / u1dnIb9SoAw
No matter what i do, it only flashes and nothing else is visible. Device purchased about 1.5 years ago.
Click to expand...
Click to collapse
You need to return to stock using a fastboot rom, using a recovery rom will not work.
Most likely you have corrupted files. but sure it could be an hardware issue, especially if you have dropped the phone or installed something to increase the refresh rate. If you flashed a refresh rate mod, then you need to flash the DBTO image from the fastboot stock rom.
tsongming said:
You need to return to stock using a fastboot rom, using a recovery rom will not work.
Most likely you have corrupted files. but sure it could be an hardware issue, especially if you have dropped the phone or installed something to increase the refresh rate. If you flashed a refresh rate mod, then you need to flash the DBTO image from the fastboot stock rom.
Click to expand...
Click to collapse
I have TWRP installed and thought of checking it out but it simply flashes there as well. Right now i have the display on, set never sleep in Developer options and simply keeping it up until new phone arrives. Once i am on new phone, i will try factory reset on this first and go from there i think. Not sure how to get to fastboot when display is not working.
Due to such weird nature that nothing really helps i tend to think that this is HW issue.
EDIT : Turned off display by accident (because phone call happened) and now it's back to flashing disco with absolutely nothing working. Fastboot (power + lower volume key together) is of course flashing as well so inacessible.
Happened to me too. Turned off AoD, restarted, turned on and it was ok for a while. Now flashed again. Dont know what is causing this :/
Odesláno z mého MI 8 pomocí Tapatalk
I also got the same issue on my dipper. The only solution that works perfect is by flashing to LineageOS 17.1. I know it's an OLED screen faulty but Lineage really fixes it. Been using Lineage for a few months and never have this display issue again. Other custom ROMs can't fix this display issue.
I replaced the Mi 9T Pro amoled display with a new original one, but the fingerprint doesn't work. The fingerprint sensor is still working, the problem is related to the calibration. I tried using the "Activity launcher" app to calibrate the sensor, I chose "In display fingerprint" then "SPMT", but this process failed when it asked to "Calibrate, put the FLESH CHART then click next" with error "0x14 the number of bad pixel is abnormal".
I know that "FLESH FLAT" means that I need to use a mirror on the fingerprint, but what does "FLESH CHART" mean?
Thank you
Here some screenshots and the difference between the two displays: https://drive.google.com/folderview?id=1lJ0_T0kMW3kOl-2Piy8vC9VUv2cUhLeG
Hello , There are issues with the miui 12 update. Is your screen really 100% original?
sacha2506 said:
Hello , There are issues with the miui 12 update. Is your screen really 100% original?
Click to expand...
Click to collapse
I think that it's the original one, here a link https://drive.google.com/folderview?id=1lJ0_T0kMW3kOl-2Piy8vC9VUv2cUhLeG to a photo gallery with the photo comparison between the two displays.
There is an official procedure to perform the fingerprint calibration?
Thank you
according to your photos it is not the original screen but an adaptable one. the reference is not the same look carefully ...
sorry I don't know the procedure ...
sacha2506 said:
according to your photos it is not the original screen but an adaptable one. the reference is not the same look carefully ...
sorry I don't know the procedure ...
Click to expand...
Click to collapse
Thank you for your reply. I bought this spare parts on eBay. It was described as original AMOLED
About the reference, do you mean the code that is in the bottom of the screen on the gray tape?
At this point I will try to change it again... There is a shop where I can buy original spare parts? I know that this one is a good shop https://dragon-tt.com/Products.aspx?gid=95 but you need to wait some days for the shipment because they ship from China.
Thank you
I think that of your link is good however I do not know the difference between the beginning of the serial number JA and JC or JB ... Anyone know the difference or is it just a year or a place of production?
sacha2506 said:
I think that of your link is good however I do not know the difference between the beginning of the serial number JA and JC or JB ... Anyone know the difference or is it just a year or a place of production?
Click to expand...
Click to collapse
I think that I will buy a new one on dragon-tt.
Do you think that ask to the reseller for the beginning of the serial number it's important?
Thank you
Yes Il think ...
sacha2506 said:
Yes Il think ...
Click to expand...
Click to collapse
Dragon-tt give me this reply:
This item is 100% original new.
It recognize the fingerprint .
You can not start calibration process ,because you have no tool.
Only xiaomi have the tool to calibrate the finger print.
Our screen comes with JA.
I think it is not a problem.
Click to expand...
Click to collapse
it still seems weird to me. but if so then Xiaomi should be able to fix the problem with an update.
Have you tried to factory reseting the device?
Please let me know
Grazma said:
Dragon-tt give me this reply:
Click to expand...
Click to collapse
I see that there are some topics with reports of the same problem, that is: difficulties with the fingerprint scanner after replacing the broken screen of an MI 9T / K20D [PRO].
A summary of the situation:
Until MIUI 11, the MI 9T / K20D [PRO] worked normally even when their screen was replaced by non-original screens with only 5 multitouch points, sometimes described as "tft" or "oled", including the fingerprint scanner.
Most of the screens available on internet sellers are of these types, and vendors often insist that they are original. The easiest way is to check the number of multitouch points, if it is not 10, it is not original.
After upgrading to MIUI 12, the fingerprint scanner of the MI 9T / K20D [PRO] equipped with these screens no longer works, restarting the device whenever trying to register a fingerprint. This is not a calibration problem.
The only solution found so far is to replace the non-original screen with an "AMOLED" screen, with 10 multitouch points, which is either original or at least has characteristics similar enough to the original to work.
This topic has a good explanation on that subject https://forum.xda-developers.com/k20-pro/help/miui-12-fingerprint-unlock-defective-t4122135
I hope it helps
As Thoriq said, have you tried factory resetting it? i had the same problem when i replaced the screen on my cepheus with a bad quality one and that fixed it
[Solved]
rodrimax10 said:
As Thoriq said, have you tried factory resetting it? i had the same problem when i replaced the screen on my cepheus with a bad quality one and that fixed it
Click to expand...
Click to collapse
Hi guys, after reading the last update in this thread, I tryed to install a clean Global ROM on my Mi 9T Pro, and it works, but due to the cheap quality of the new AMOLED, the recognition works 1 time on 8.
I followed this guide step by step, and if you open this link from a smartphone, turn on the "Desktop Mode" otherwise you will see a blank page: https://c.mi.com/oc/miuidownload/detail?guide=2 - to follow the guide you need a Windows PC -.
If you need to unlock the device, first you will need to turn on the "Developer options", go into the "Mi Unlock status" menu, and bind the Xiaomi Account with the unlocker. Of course, you will need the Xiaomi Account password.
Ater the unlock, according to the guide that I linked before, the device will reboot, but sometimes it stops on the coloured "MIUI" logo. So after 5 minutes without any change, I turned off the device pressing the power button, and then it rebooted correctly. After the first reboot, it asked me to add again the Xiaomi Account password, because the device was already paired with an account. At this point it booted, and I turned off the device before selecting the system language, and I continued to follow the linked guide from the STEP 3.
The nice thing is that the fingerprint works again, unfortunately the bad quality of the display cannot be fixed without replacing it again.
Thank you for your help guys.
Grazma said:
[Solved]
Hi guys, after reading the last update in this thread, I tryed to install a clean Global ROM on my Mi 9T Pro, and it works, but due to the cheap quality of the new AMOLED, the recognition works 1 time on 8.
I followed this guide step by step, and if you open this link from a smartphone, turn on the "Desktop Mode" otherwise you will see a blank page: https://c.mi.com/oc/miuidownload/detail?guide=2 - to follow the guide you need a Windows PC -.
If you need to unlock the device, first you will need to turn on the "Developer options", go into the "Mi Unlock status" menu, and bind the Xiaomi Account with the unlocker. Of course, you will need the Xiaomi Account password.
Ater the unlock, according to the guide that I linked before, the device will reboot, but sometimes it stops on the coloured "MIUI" logo. So after 5 minutes without any change, I turned off the device pressing the power button, and then it rebooted correctly. After the first reboot, it asked me to add again the Xiaomi Account password, because the device was already paired with an account. At this point it booted, and I turned off the device before selecting the system language, and I continued to follow the linked guide from the STEP 3.
The nice thing is that the fingerprint works again, unfortunately the bad quality of the display cannot be fixed without replacing it again.
Thank you for your help guys.
Click to expand...
Click to collapse
DEAR SIR I HAVE THE SAME PROBLEM AND FOLLOWED your procedure but no result.
I bought an AMOLED screen manufactured by Samsung, complete with frame, supports 10 touch points, with color quality and contrast very similar to the original screen of my Mi 9T. At first it is a good display, the seller has guaranteed that it is of Original / OEM quality. Here is the link to the part I bought: https://www.aliexpress.com/item/4000156095854.html
The only problem is that biometric recognition does not work on MIUI 12! The sensor registers my fingerprint but the phone does not unlock with it. I've tried to downgrade to MIUI 11 and it didn't work either. Any solution?
same situation but the one I got is branded OLED instead of an AMOLED one. I wish there's a way to calibrate the fingerprint as I registered the same finger thrice for accuracy but it still doesn't detect properly.
ClockUpEx said:
same situation but the one I got is branded OLED instead of an AMOLED one. I wish there's a way to calibrate the fingerprint as I registered the same finger thrice for accuracy but it still doesn't detect properly.
Click to expand...
Click to collapse
You can try to follow what I have done here. But, if you didn't bought the original spare part, you will probably be unable to use the fingerprint scanner due to the bad quality of the display.
It worked either you replaced original (10 or 5 finger touch support) Theres a tricky way to make it done.
Xda user from iran n india successfull fod
Hello
I bought Asus Rog 3 (android 12) after replacing the screen. He has this problem:
- Only the front camera works, when I try to switch to the rear camera, the camera freezes for a moment and switches back to the front camera.
However, if I turn on the google camera in the options, the rear camera works normally.
- Doesn't read fingerprints. Scanner turns on but does not scan any lines.
I thought android 12 broke and I uploaded android 11 from Asus and it's the same. After a while, it updated itself again to android 12.
I have no idea how the fault could be.
Anyone have any advice on this problem?
Are you sure the device re-assembled properly? I've replaced the display in my ROG 3 before, all worked out very smoothly. Nothing special involved beyond making sure motherboard, fingerprint reader, cameras and everything else are all connected back together correctly...
Andrologic said:
Are you sure the device re-assembled properly? I've replaced the display in my ROG 3 before, all worked out very smoothly. Nothing special involved beyond making sure motherboard, fingerprint reader, cameras and everything else are all connected back together correctly...
Click to expand...
Click to collapse
Thanks for the answer.
I was also wondering about it, to be honest, but since the rear camera works in the "google camera" mode and the white line scanner also, but it does not scan the line, the problem is probably in the software.
In fastbootd mode it displays something like this, I do not know if it is correct because it is my first Rog 3
I don't want to open it while it's possible. Therefore, I am asking if any of my honorable colleagues had this or a similar problem.
IrCio36 said:
Thanks for the answer.
I was also wondering about it, to be honest, but since the rear camera works in the "google camera" mode and the white line scanner also, but it does not scan the line, the problem is probably in the software.
In fastbootd mode it displays something like this, I do not know if it is correct because it is my first Rog 3
I don't want to open it while it's possible. Therefore, I am asking if any of my honorable colleagues had this or a similar problem.
Click to expand...
Click to collapse
The screenshot doesn't tell much. However, you won't be able to RAW flash this device from there. Check that your have correct Fastboot access from the bootloader (without navigating to above). Then do a RAW flash to one of the A10 or A11 versions that works.
Andrologic said:
The screenshot doesn't tell much. However, you won't be able to RAW flash this device from there. Check that your have correct Fastboot access from the bootloader (without navigating to above). Then do a RAW flash to one of the A10 or A11 versions that works.
Click to expand...
Click to collapse
Why should I flash in RAW format? What will this change?
Menu, które wkleiłem, to podmenu fastboot.
I downgraded the software from the Asus website to:
- Android 10 (front / rear camera is working properly, fingerprint scanner is not working)
- Android 11 (rear camera not working, fingerprint scanner not working)
- Android 12 (rear camera not working, fingerprint scanner not working)
I don't know where the problem is. I have already written to Asus about this. We'll see what they write back.
I checked the phone's serial numbers on the Asus website and everything is correct.
The phone was not unlocked and rooted. FOTA is working properly.
Just got the latest version dated 01.08.2022
The problem remained.
Hello
As I wrote above.
Asus spoke very quickly. The phone was sent to service in RMA mode. I don't know what they did, but very fast and everything works as it is supposed to.
I contacted the previous owner and it turned out that the screen was replaced on the Asus service. Guarantee until the end of October
And I was so tempted to open it
It's good that I did not do it because it is a little 16/512GB baby girl
Topic to be closed.
Regards
IrCio36 said:
Hello
As I wrote above.
Asus spoke very quickly. The phone was sent to service in RMA mode. I don't know what they did, but very fast and everything works as it is supposed to.
I contacted the previous owner and it turned out that the screen was replaced on the Asus service. Guarantee until the end of October
And I was so tempted to open it
It's good that I did not do it because it is a little 16/512GB baby girl
Topic to be closed.
Regards
Click to expand...
Click to collapse
I am having similar issue my fingerprint was not working after screen replacement but now after few months my front came stopped working it was working three days back on android 10 and 11 i updated firmware from 10 to 11 to 12 and than degraded from 12 to 11 to 10 but issue still exists my front came and whatsapp video call not working back came is working but when i try to switch to front it freezes and screen turns black until cache clears
Hi mates, I need you help and suggestons,
unfortunately my phone felt down and I needed to change screen, the service which installed it asked me to choose one of the available (chinese) screens I I select the most expensive one. In the beginning all was ok, but time by time (about 1,5months) the usage gests worst, when the screen start to be a bit dirty it start recognize touches anywhere (moslty in the up side of screen), itself does commands, it's not possible to do nothing. WHen this happens I need to keep press the power button for 10 seconds tille ht ephone reboots, after reboot all become regular.
My considerations:
1) it doesn't seams a defective screen or a bad assembly, because after reboot all is good, if there were such problems a simple reboot can't fix them.
2) it looks like an incompatibility between OS and the touchscreen firmware, and probably it's something Xiaomi does with intention to create problems for cloned spare parts. Maybe the OS is "instructing" the touch screen controller how much sensibility to use, how much it can be dirty, etc.etc? the protocol of the latest OS isn't at all compatible with the cloned device and it result on crash of functioning. A reboot solves the problem.
If that is right, will a ROM update to another OS (not IMOU, as I have now) can fix the problem? Or there is any app that can perform a touch screen reset? Or any other trick to solve my problem? Than you for answers
Hi mates I need help, with cold weather coming it got crazy as soon it feels cold. WHat can I do to solve problem?
Updating ROM to a non official can solve it? The display isn't broken! A reboot fixes always the problem..
It is not original screen from xiaomi vendors, just a oem part with lower quality (chinese sell it alot on aliexpress with many type amoled, oled and LCD panel too).
Ghost touch easy happen on oem screen no matter how expensive it is.
Thank you for your kind answer, this is a really big issue.. it's very annoying using the phone like that, I've noticed it suddelny starts when the phone is exposed to cold temperature: lowering the screen temperature quite suddenly means it goes crazy, when it's crazy the only way to fix the proble is reboot the phone, with reboot it calibrates again and works ok, till next event. MY question are:
1) Can I forse myself a calibration?
2) Does other ROMs, not MUI, manage and fix this problem? (using another touch driver may solve the problem, chances are MUI introduced updates and become more selective to work with only original displays, to disancurage the OEM parts, so using another ROM wuth an older driver may solve the problem)
3) If I buy and add a protective glass on display, does it behave better?
Your experience is essential for me, thank you for posting!
Barabba11 said:
Thank you for your kind answer, this is a really big issue.. it's very annoying using the phone like that, I've noticed it suddelny starts when the phone is exposed to cold temperature: lowering the screen temperature quite suddenly means it goes crazy, when it's crazy the only way to fix the proble is reboot the phone, with reboot it calibrates again and works ok, till next event. MY question are:
1) Can I forse myself a calibration?
2) Does other ROMs, not MUI, manage and fix this problem? (using another touch driver may solve the problem, chances are MUI introduced updates and become more selective to work with only original displays, to disancurage the OEM parts, so using another ROM wuth an older driver may solve the problem)
3) If I buy and add a protective glass on display, does it behave better?
Your experience is essential for me, thank you for posting!
Click to expand...
Click to collapse
imo
1. you can not
2. Roml sorfware can not
3. Protective glass make lower touch experience.
- Not all oem part come with defect, some working fine, it is just random.
- To repair you need replace new one, or buy original screen for sure.
Thanks for answer, I do believe that the problem can be managed by drivers, "resettig" the touch chip wil correct the problem. Probably the defect is on the firmware of the touch panel, it gots errors from touch.. ok, but it doesn't understand it's just revealing mre and more ghost touches. These FW have the task to filter out the ghost,, maybe they don't do it well.
A second chance is the comuinication between this chip and the MUI OS, the connection goes broken by some mistakes, "unalligned" and MUI got any touch position from nothing.
I don't believe the screen is defective, because after reboot it works perfectly, thil the next strong environment conditions change..
What is Roml software?