Hello, well I have noticed recently a strange behavior in the fingerprint sensor, but this behavior its always there (its not recently)
I have a pattern and the fingerprint enabled, but the fingerprint sensor only works when ths lockscreen displays the fingerprint logo, but here is the strange thing, the sensor recognize my fingerprint (because it vibrates once and ask for the pattern, if I put another finger its not registered, vibrate twice and doesnt ask for the pattern), I have already flash the phone several times, the first time I believe the sensor just doesnt recognize me, but later I discover this behavior and it looks like maybe a software bug
Something else notice these?
Is there a fix? its sometimes annoying
Thanks!
jacker60 said:
Hello, well I have noticed recently a strange behavior in the fingerprint sensor, but this behavior its always there (its not recently)
I have a pattern and the fingerprint enabled, but the fingerprint sensor only works when ths lockscreen displays the fingerprint logo, but here is the strange thing, the sensor recognize my fingerprint (because it vibrates once and ask for the pattern, if I put another finger its not registered, vibrate twice and doesnt ask for the pattern), I have already flash the phone several times, the first time I believe the sensor just doesnt recognize me, but later I discover this behavior and it looks like maybe a software bug
Something else notice these?
Is there a fix? its sometimes annoying
Thanks!
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Click to collapse
maybe its a hardware issue , i think u said u flashed ur phone several times? tried different ftf files? if thats the case , then its hardware issue. i havent heared that at all. the only issue i have seen before with the fingrprnt scanner is that sometimes it says an error but u reboot and its ok ( havent seen that for months though)
arismelachrinos said:
maybe its a hardware issue , i think u said u flashed ur phone several times? tried different ftf files? if thats the case , then its hardware issue. i havent heared that at all. the only issue i have seen before with the fingrprnt scanner is that sometimes it says an error but u reboot and its ok ( havent seen that for months though)
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yes I have flashed it several times with the original and other ftf files (always respecting the model number), will try with a friends phone and see if this behavior happen there too
Latest firmware of Nordic Combined hasn't given this issue for more than a month now. Do a clean update I'd say.
I have a problem with the fingerprint sensor.. Since I switched to miui 11 with android 10 the sensor worked at times. It works for a day or two, then the menu disappears from the settings and i can no longer use it.
I try tu update vendor partition, wipe data, format data, reinstall new rom with all wipes, reinstall stock rom with Mi FlashTool, any solution works..When i wipe all, it works for a while and than, suddenly, doesn't work anymore!!
I have Mix 2S, i'm sure that is not an hardware problem..
Replace fingerprint sensor
I don't know why you say that you're sure that it's not a hardware problem, but to me, it sounds like the sensor is broken. I suffered this issue in my own Mi Mix 2s and it was caused because the "cable" of the sensor was folded (it's not really a cable, it's more like a flat plastic connector) and it worked one day and not the next. I finally decided to fix it by myself, looking for a youtube video about disassembling the phone and with these tools and the replacement sensor it was pretty easy (and quite cheap, frankly). I hope it helps!
Kaliotto said:
I don't know why you say that you're sure that it's not a hardware problem, but to me, it sounds like the sensor is broken. I suffered this issue in my own Mi Mix 2s and it was caused because the "cable" of the sensor was folded (it's not really a cable, it's more like a flat plastic connector) and it worked one day and not the next. I finally decided to fix it by myself, looking for a youtube video about disassembling the phone and with these tools and the replacement sensor it was pretty easy (and quite cheap, frankly). I hope it helps!
Click to expand...
Click to collapse
I had the same problem. Mi mix 2s had a problematic/bad assembly line.
I have exactly the same issue. After Android 10 update the fingerprint sensor works for a while. After one day I recognized that the fingerprint sensor is not working anymore. And there are no options or settings in the system settings anymore. So I assume a software problem.
Jörg Krug said:
I have exactly the same issue. After Android 10 update the fingerprint sensor works for a while. After one day I recognized that the fingerprint sensor is not working anymore. And there are no options or settings in the system settings anymore. So I assume a software problem.
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This problem is very boring!!! Have you try a solution, or a temporary fix???
No, I have no idea how to fix. Seems we have to wait till the next update from Xiaomi, which hopefully will fix the problem. It is really boring.
Jörg Krug said:
I have exactly the same issue. After Android 10 update the fingerprint sensor works for a while. After one day I recognized that the fingerprint sensor is not working anymore. And there are no options or settings in the system settings anymore. So I assume a software problem.
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Click to collapse
Your assumption is wrong... these options will not show up if the system can't find the fingerprint sensor... Had the same problem and it turned out to be a hardware fault, exactly like mentioned by Kaliotto. You can do a simple test via CIT (tap multiple times on kernel-version). You will find a fingerprint sensor check in there. If it does not find the sensor, it is broken, simple as that. Replacing the sensor is really no voodoo, did it in a timeframe of 30 minutes myself and it was really the first time I ever opened a smartphone. And the parts are really cheap.
cdfs said:
Your assumption is wrong... these options will not show up if the system can't find the fingerprint sensor... Had the same problem and it turned out to be a hardware fault, exactly like mentioned by Kaliotto. You can do a simple test via CIT (tap multiple times on kernel-version). You will find a fingerprint sensor check in there. If it does not find the sensor, it is broken, simple as that. Replacing the sensor is really no voodoo, did it in a timeframe of 30 minutes myself and it was really the first time I ever opened a smartphone. And the parts are really cheap.
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Click to collapse
I read on differents sites a lot of people who had problems with fingerprint sensor after upgrading to miui 11 with android 10..i don't think that all of us had hardware problem at the same time of the upgrading, it's very strange...
so, to avoid any doubt, i'm searching a new fingerprint sensor..the site suggested in the second posts seems to have problems with payment, any times i try to buy with paypal o credit card, the payment was refused..so i'm searching another reliable site..
I solved the problem. In my case it was defenitely a software bug. I tried to run the fingerprint test at CIT and the phone reminded me that the phone is protected by a PIN and can not enroll fingerprint information. So I switched of the PIN protection and the fingerprint test runs positive. Since that time, the fingerprint options in the setting was back again and I was able to setup the fingerprint sensor as usually.
So I thing the deactivation of PIN protection was the solution to get the fingerprint sensor working again.
Jörg Krug said:
I solved the problem. In my case it was defenitely a software bug. I tried to run the fingerprint test at CIT and the phone reminded me that the phone is protected by a PIN and can not enroll fingerprint information. So I switched of the PIN protection and the fingerprint test runs positive. Since that time, the fingerprint options in the setting was back again and I was able to setup the fingerprint sensor as usually.
So I thing the deactivation of PIN protection was the solution to get the fingerprint sensor working again.
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Click to collapse
So, you only disabled pin in the lockscreen (and set swipe method to unlock the phone)??
I tried now disabling pin and restarted the phone, but no options in the settings menu
Can you give me more details? Thanks
Update! After one day of use, I have to say, that the fingerprint sensor still does not work proper. After a while the fingerprint sensor stops working again. I played around with the settings, disabled the PIN protection and start the phone several times and than the fingerprint sensor was working again for a while. There is still something wrong. Also the CIT test sometimes pass and sometimes fail. Maybe it is hardware failure after all.
What I did: I disabled the password (PIN) protection, means no protection at all. After that I was able to run the fingerprint sensor test at CIT ( as cdfs wrote). This test was pass and the settings to configure the fingerprint sensor appears again in the system settings and the sensor worked for a while.
Since this procedure the function of the sensor is not consistent and I can not definitely say what to do to get it works. In the meantime I think that all the described workaround just works by accident.
NEWS: i changed stock kernel with two modded kernel (Twisted v22 && LawRun9.0_60hz) and fingerprint start to works again!!!
So, my idea was real: it's a software problem!!!!
Try it yourself and give me your feedback
Hi,
I had also the issue that the fingerprint sensor was not recognized. I replaced it.
Then the option was there again but it doesn't read any fingerprints.
The CIT test fails by the last step "Pixel open test"
Then I got a second new fingerprint sensor and replaced it again.
The test fails again in the last step!
These are the CIT messages:
Autotest: Testing
SPI test: Success
Reset pin test: Success
Interrupt pin test: Sucess
Pixel open test: FAIL
So I would say it is a Software Issue
Hello,
so I at the end found some users, having exactly that problem!
I bought a new sensor and changed it. Pixel Opem Test failed.
I bought another sensor with the same result: Pixel Open Test failed.
Is there a usefull solution?
Mi Mix 2s MiUi 12 xioami.eu
fefuzzo said:
NEWS: i changed stock kernel with two modded kernel (Twisted v22 && LawRun9.0_60hz) and fingerprint start to works again!!!
So, my idea was real: it's a software problem!!!!
Click to expand...
Click to collapse
I had a try with twisted kernel V28.
Unfortunately it dind't solve the problem for me
meeven said:
Hi,
I had also the issue that the fingerprint sensor was not recognized. I replaced it.
Then the option was there again but it doesn't read any fingerprints.
The CIT test fails by the last step "Pixel open test"
Then I got a second new fingerprint sensor and replaced it again.
The test fails again in the last step!
These are the CIT messages:
Autotest: Testing
SPI test: Success
Reset pin test: Success
Interrupt pin test: Sucess
Pixel open test: FAIL
So I would say it is a Software Issue
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Click to collapse
Hello currently I am using mi note 9 pro but I am having fingerprint issue there is fingerprint option missing I am not able to mange fingerprints. Plz somebody help me
Most of the time fingerprint unlock works perfect, but sometimes it wont accept my fingerprint at all. After a while it just works perfectly again. Screen isnt dirty. Anyone Else has this Problem? I Hope its Just a Software Bug...
Register the same finger again as 2nd fingerprint.
Probably it will from then work just fine
I have noticed that fingerprint doesn't work (or have to try many times) in stronger sunlight ...
I've just replaced the screen on my friends S5 Pro and currently don't have a working FP sensor. I've double checked and the sensor is seated correctly and there is nothing obscuring its little window on the screen.
I want to recalibrate the sensor, but cannot find a way to do this. All of the useful dialer hidden codes are disabled. It might be that doing a factory reset or re-flashing the full firmware would trigger the sensor to calibrate itself, however my friend spent days getting everything just how he likes things and says he'd rather live without the sensor than have to set everything up again and doesn't trust non-root backup solutions to work properly. He doesn't want to unlock his bootloader, so rooting is out of the question.
Does anyone know of any way to get into some kind of engineering mode on this phone to be able to force a fingerprint sensor calibration?
Robbo.5000 said:
I've just replaced the screen on my friends S5 Pro and currently don't have a working FP sensor. I've double checked and the sensor is seated correctly and there is nothing obscuring its little window on the screen.
I want to recalibrate the sensor, but cannot find a way to do this. All of the useful dialer hidden codes are disabled. It might be that doing a factory reset or re-flashing the full firmware would trigger the sensor to calibrate itself, however my friend spent days getting everything just how he likes things and says he'd rather live without the sensor than have to set everything up again and doesn't trust non-root backup solutions to work properly. He doesn't want to unlock his bootloader, so rooting is out of the question.
Does anyone know of any way to get into some kind of engineering mode on this phone to be able to force a fingerprint sensor calibration?
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Click to collapse
The fingerprint sensor went completely over the cuckoo's nest in my Umidigi S5 Pro for no apparent reason, now I can't use it at all. Any ideas?
Same thing happened to me shortly after an OTA update if I remember correctly... any luck with a fix thus far?
Hello,
Since i changed my motherboard, my fingerprint unlock sensor isn't working on my lockscreen.
When I put my finger in, the phone does the animation and vibrates but does not unlock. Even when I put a finger that is not added in the settings, I don't get an error, it vibrates and does the animation endlessly.
Nevertheless, on other applications (my bank's one, my password manager or even in the phone's settings to access some options (!!!)), the sensor works perfectly!
I went to check in the CIT, and the fingerprint tests pass perfectly. I even tried several times to recalibrate the sensor, but the problem still persists.
This problem happens on MIUI 13 China (stock) and xiaomi.eu rom, and i tried multiple times to do a factory reset but nothing.
What can i do?
Thanks.
same problem on pixel experience
rvxatt said:
same problem on pixel experience
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My problem was resolved by MIUI 14.
I don't know why but when the phone vibrate, the fingerprint sensor won't work. MIUI 14 added the option to disable vibration when unlocking, and since my fingerprint sensor works perfectly.
Check if you can disable the fingerprint vibration on PE.
rvxatt said:
same problem on pixel experience
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Click to collapse
Your problem comes from the rom and not from Miui since it is an AOSP rom, post on the rom thread.