Develop Bugs

Auto-touch touchscreen problem(Ghost Touch)

Hello i purchased a zenfone 2 (4gb ram) almost an year ago(out of warranty now)
while using it the touch screen starts acting automatically and while the phone is locked it wakes up the sceen and then goes crazy
changing the touchscreen did not solve the problem if someone had a similar problem please suggest a way to solve this
i have read that it might be beacuse of the updates as the touch was working fine on some older build.... i will get my ZF2 back on 31st may

kanodiatushar said:
Hello i purchased a zenfone 2 (4gb ram) almost an year ago(out of warranty now)
while using it the touch screen starts acting automatically and while the phone is locked it wakes up the sceen and then goes crazy
changing the touchscreen did not solve the problem if someone had a similar problem please suggest a way to solve this
i have read that it might be beacuse of the updates as the touch was working fine on some older build.... i will get my ZF2 back on 31st may
Click to expand...
Click to collapse
had same issue..
it got covered under warranty and they replaced the display.

anooj21m said:
had same issue..
it got covered under warranty and they replaced the display.
Click to expand...
Click to collapse
so changing the display did solve your problem.. hmm thanks

I too, have that same problem.. I have two ZF2 Z00A's and they both do it with stock ROM or Custom.....presntly one is running stock MM and the other LOS 14.1 3/17/17 Build
I would like know if anyone has solved this problem.

I had the same issue and Asus replaced LCD and motherboard

Problem with moto z play fingerprint sensor.

Hi
I am facing a strange problem. Sometimes fingerprint sensor doesnot work. On touching no vibration and screen does not unlock. I have to press power button, enter the pin and unlock. After that it will start working.
Anyone facing same problem?
Any solution to this?
Is it hardware problem or some configuration issue??

No such problems on my MZP , try to remove registered finger prints and add them again - or make a phone reset . Or clean finger print sensor with dry cloth .

Faulty fingerprint sensor
I've had the same problem with my Moto Z.
It eventually stopped working completely and was no longer showing as an option in the Security menu.
I sent it for checks/repairs and got a new device sent.

cipnt said:
I've had the same problem with my Moto Z.
It eventually stopped working completely and was no longer showing as an option in the Security menu.
I sent it for checks/repairs and got a new device sent.
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Click to collapse
How many weeks/months did it take to fail completely?
My Moto Z Play also requests the pin every now and then. I thought it does that because of all those modifications like Xposed and screwing with services and receivers...

daniel_m said:
How many weeks/months did it take to fail completely?
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Click to collapse
Three or four weeks I think... It gradually became worse.
It completely failed a few days after the end of my 1-year warranty, but after explaining to Motorola that this was going on for few weeks they agreed to fix/replace it under warranty

cipnt said:
Three or four weeks I think... It gradually became worse.
It completely failed a few days after the end of my 1-year warranty, but after explaining to Motorola that this was going on for few weeks they agreed to fix/replace it under warranty
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Click to collapse
Thanks for the information. Then mine should be working fine and the system is wonky

Fp scanner has stopped working altogether for no reason.

Yes my fingerprint scanner has stopped working altogether after getting my motherboard replaced by lenovo authorised service center.when i approached them about it they fixed it temporarily for a week at the maximum but then again the fingerprint stopped working altogether.then i then got extremely angry about it ( cause the service center is too far from my house and i travel by bus).this is dissapointing at the least as an authorised service center does this to you .This was my first experience with lenovo authorised service center and it will be the last one.does anyone know how to fix this issue or should i have to change the existing fingerprint scanner.

Don't bother to change it. Some models, like mine, have this issue. The fingerprint itself is not broken, is temporarily not working. This time can vary from days to months. Mine is now not working since 1 month.
I do not rely on it anymore. I would say that this is the only back stain of this phone.
You can google it for yourself, unfortunately is quite a common issue.

joshthemajor said:
Don't bother to change it. Some models, like mine, have this issue. The fingerprint itself is not broken, is temporarily not working. This time can vary from days to months. Mine is now not working since 1 month.
I do not rely on it anymore. I would say that this is the only back stain of this phone.
You can google it for yourself, unfortunately is quite a common issue.
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Click to collapse
The problem started after I got my motherboard changed and that too by official lenov guys.I am suffering without a fingerprint for almost 9 months and have to use password Everytime .

Found the fix to the problem .I just installed havoc os 3.1 28 the Jan update and voila fingerprint started working.man I'm so happy .all these days I was blaming Lenovo officials although it actually had stopped working after I got my motherboard changed.

Biradarkushal said:
Yes my fingerprint scanner has stopped working altogether after getting my motherboard replaced by lenovo authorised service center.when i approached them about it they fixed it temporarily for a week at the maximum but then again the fingerprint stopped working altogether.then i then got extremely angry about it ( cause the service center is too far from my house and i travel by bus).this is dissapointing at the least as an authorised service center does this to you .This was my first experience with lenovo authorised service center and it will be the last one.does anyone know how to fix this issue or should i have to change the existing fingerprint scanner.
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Click to collapse
I guess i got it fixed .I literally put sanitizer on my fingerprint scanner and voila it started working.Dont ask me why I used sanitizer,I just saw it lying on my desk(corona virus effect) and thought why not use it.try this once maybe it might work for you.you need to rub all over your fingerprint scanner.

Question Updated to MIUI 12.5.3 and fingerprint sensor stopped working.

Hello everyone! Hope you're doing ok!
As the title says, I updated to MIUI 12.5.3 Global stable rom (from OTA) and then I started having issues with the fingerprint sensor, only working half of the time. Then, suddenly, it stopped working completely. I've read online that it has happened to many people on many devices. The only answer I can find is to flash xiaomi.eu rom on my phone. Does anybody knows if installing xiaomi.eu would help? Does anybody have had this same issue before?
My phone is 3 months old, I always use a case and screen protector, and I haven't dropped it strong. (It fell off of my hands a couple times, 2 or 3, but without any major impact, had a very safe landing haha so I doubt the fingerprint sensor broke.)
I'm trying to find any kind of solution to this problem, as I always use the fingerprint sensor
Thanks in advance!

redbeans92 said:
Hello everyone! Hope you're doing ok!
As the title says, I updated to MIUI 12.5.3 Global stable rom (from OTA) and then I started having issues with the fingerprint sensor, only working half of the time. Then, suddenly, it stopped working completely. I've read online that it has happened to many people on many devices. The only answer I can find is to flash xiaomi.eu rom on my phone. Does anybody knows if installing xiaomi.eu would help? Does anybody have had this same issue before?
My phone is 3 months old, I always use a case and screen protector, and I haven't dropped it strong. (It fell off of my hands a couple times, 2 or 3, but without any major impact, had a very safe landing haha so I doubt the fingerprint sensor broke.)
I'm trying to find any kind of solution to this problem, as I always use the fingerprint sensor
Thanks in advance!
Click to expand...
Click to collapse
I'm having the same problem, any fix?

Same problem, any fix???

I have bad news. I managed to install xiaomu.eu, I'm on MIUI 12.5.5 and sadly, the issue was not fixed. I thought that installing the most recent version of xiaomi.eu would solve the problem, but no...
I don't know if going back to MIUI 12.0 would solve it, as the problem appeared when I upgraded it to 12.5.3, but I won't try it for now because i'm kinda tired of re-setting my phone and apps lol.
If someone downgrades to MIUI 12.0, global or eu rom, and it solves the problem, please let us know!

it won't be solved by changing ROMs as it's an hardware issue. Go to the service centre and get it replaced

HIRA123 said:
it won't be solved by changing ROMs as it's an hardware issue. Go to the service centre and get it replaced
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Click to collapse
The thing is I'm not so sure its a hardware issue. The problem started when I updated to MIUI 12.5.3 and the fingerprint stopped working, and more people have the same issue after updating too.
But as changing the rom didnt work, I can assume maybe, in my case, is a hardware issue... And I doubt it tho, because I haven't dropped my phone as hard for it to broke.. unless the sensor is so weak it breaks with a little drop

I had the same issue, unlocked bootloader, flashed crdroid, and fingerprint stopped working, thought it was due to custom rom, flashed OG MIUI Firmware locked bootloader and fingerprint still wasn't working, claimed my phones warranty and the service center told me that they'd have to replace the fingerprint and the problem maybe with the motherboard as well.

So it is an hardware problem? Seriously?

darkangel123 said:
So it is an hardware problem? Seriously?
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Click to collapse
Yes, it's a hardware issue. Last week I brought my mi 11 lite to the service centre and they replaced the fingerprint module and it's working again

So why the fingerprint with the previous software still active?

Happened to me 2 days ago, phone was just 3 months old.

It's hardware issue,sensor on mine Mi 11 lite 5g died two months after I bought it.Flashing older roms won't help...In my country there is no way to raplace it so I've got other phone...

Im not use fingerprint use faceid

Question I'm facing fingerprint option missing issue in my mi 11 lite device.is there any solution? I have tested CIT test already. how can i solve this issue?

Please help me to solve this issue.

Try this step again, Go to Settings > About Phone > All specs, tap kernel version many times, test fingerprint sensor. Visit the service center if the test fails or install android 11 new version.

I'm sure this is a software problem. I've never been this careful with a phone in my life and I also have the same problem. Unless the update somehow tucked with the motherboard idk. But my best option is to wait for another update to roll out

Dondiriraa said:
I'm sure this is a software problem. I've never been this careful with a phone in my life and I also have the same problem. Unless the update somehow tucked with the motherboard idk. But my best option is to wait for another update to roll out
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I bought this phone and after some months i faced this stupid issue too. I've been very careful but had to send the phone to a service center. They said that they changed the fingerptint sensor. Since then no more fingerprint issues...

Same thing with me, it was hardware. After only 6 months of use, I had to send it to a repair service under warranty. So far I had no issues with the sensor.

same here, fingerprint sensor is missing from menus. I will send it to a repair service.

Well it seems the only solution is to send to repair and i think warranty will cover that.. Seems like factory problem :/
But I don't care anymore, since if i send it, it would take maybe 1-2 months, so during that period i would be without phone..

Possible fingerprint sensor flex cable damage. Try restarting your phone while gently pressing around finger print sensor.

this is not a software issiue i have the same issiue and i changed the sensor 7 months later it still works great

I was also careful with my phone and after 3 months of buying it, the fingerprint unlock option disappeared. I couldn't find any solution and tried everything I could. In the end, I took it to a repair shop and they told me that the cable connecting the fingerprint sensor to the motherboard was damaged. They said it was due to a design flaw by Xiaomi. I would recommend you doing the same thing if the rest of things dont work.

The same problem started for me. I had used it very carefully until this time. As you mentioned, it seems to be a chronic problem. When I did some research, many people mentioned that it was fixed with a software update. My sensor disappeared a few days after the last security patch. It could be a coincidence, of course. For now, I am waiting for the upcoming MIUI 14 update instead of sending it to any service. I hope it solves the problem or I will probably send it to the service.

mtastepe said:
The same problem started for me. I had used it very carefully until this time. As you mentioned, it seems to be a chronic problem. When I did some research, many people mentioned that it was fixed with a software update. My sensor disappeared a few days after the last security patch. It could be a coincidence, of course. For now, I am waiting for the upcoming MIUI 14 update instead of sending it to any service. I hope it solves the problem or I will probably send it to the service.
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Unfortunaly its hardware problem bro. Button needs replacement , and there is no guarantee how much time will work even replaced. I hate to send to official repair shop, as it will takes weeks, and i have no spare phone. So i just use double tap to turn on the screen aswell to turn off the screen on display

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