OnePlus 8 fingerprint sensor issue - OnePlus 8 Questions & Answers

First of all, several months ago I was messing with Engineering Mode and accidentally miscalibrated my fingerprint sensor. Had no persist.img backup, so I f***ed up badly. However, someone told me that he did exact same thing and OnePlus service calibrated the sensor with 3-sided tool available online. So I bought it and tried to calibrate the sensor (no oneplus service nearby), but on the end there is a 0x3F4 error dialog with last information telling "KB_CALIBRATION_TEST failed". Does anyone have any idea how to fix it? Calibrator indeed works, because using my finger to calibrate it there's a lot of red lines indicating failed calibration. Thanks.
EDIT: already tried MSMtool, "persist fix" in other thread and even remote device reflash by OnePlus assistant.

Related

anybody else problems with the fingerprint sensor?

Hey all,
I experience problems with the fingerprint sensor. It often doesn't recognize my finger on the first try but I need to try it several times before my finger is recognized. Or face unlock solves the issue and thus the finger print problem is avoided. I also deleted the finger print and set it up new several times but the problem persists.
Anybody else got the same problem?
Dito13 said:
Hey all,
I experience problems with the fingerprint sensor. It often doesn't recognize my finger on the first try but I need to try it several times before my finger is recognized. Or face unlock solves the issue and thus the finger print problem is avoided. I also deleted the finger print and set it up new several times but the problem persists.
Anybody else got the same problem?
Click to expand...
Click to collapse
Nope, my fingerprint sensor works perfectly fine.
Yours may be defective.
Take off the case from the phone. Make sure u scan ur finger correct.
If is not helping factory reset.
If is not helping call oneplus...open return due defective hardware
This finger print sensor reads much differently than what I am used to. For me it's literally a quick tap with my finger. If I hold like I would with Nexus 6p it won't read.
Sent from my [device_name] using XDA-Developers Legacy app
The sensor is really quite small and not perfect. I scanned the same finger three times (different parts of the tip) and now it works quite well. You will get occasional errors stating that the same finger has been scanned already, but if you keep trying it works
It's not a perfect sensor or even close, I've had to add a finger twice to get it to unlock properly most of the time. I add it as a new finger.
Dito13 said:
Hey all,
I experience problems with the fingerprint sensor. It often doesn't recognize my finger on the first try but I need to try it several times before my finger is recognized. Or face unlock solves the issue and thus the finger print problem is avoided. I also deleted the finger print and set it up new several times but the problem persists.
Anybody else got the same problem?
Click to expand...
Click to collapse
I bought the OnePlus 6 and I came from the OnePlus 3 and I ran into a similar issue. It helps if you input your fingerprint multiple times
For me its not that it doesn't recognize the finger, but sometimes it just doesn't even recognize that I have placed my finger on the sensor to check if it's mine. I have no idea why this happens
Mine works great. Sometimes I think it's even too sensitive, I turn the phone off and it comes back on when my finger is still in the vicinity of the sensor. Try to wipe it off with some mild water-dishwasher solution to get any dust/body oils off of it.
Dito13 said:
Hey all,
I experience problems with the fingerprint sensor. It often doesn't recognize my finger on the first try but I need to try it several times before my finger is recognized. Or face unlock solves the issue and thus the finger print problem is avoided. I also deleted the finger print and set it up new several times but the problem persists.
Anybody else got the same problem?
Click to expand...
Click to collapse
Are you running a custom kernel? I had this issue on Stock OS using Flash Kernel. Reflashing back to stock fixed it for me
My fingerprint recognition was always failing. The sensor was working because it would vibrate whenever I put my finger on the sensor but it never recognized it. I contacted OnePlus Support and the first thing they recommended is to see if there was an upgrade available. There was one - so I upgraded - not really thinking it would help at all. But miraculously, after the upgrade, fingerprint recognition works like a champ.
Try upgrading.
sarodesparsh said:
For me its not that it doesn't recognize the finger, but sometimes it just doesn't even recognize that I have placed my finger on the sensor to check if it's mine. I have no idea why this happens
Click to expand...
Click to collapse
For me I had this same issue but not initially. The first 4 days I ran into zero issues. It worked every time. I then decided to start tinkering and installed the XXX mod. It wasn't quite what I was looking for so I decided to return to stock. At this point I flashed the stock rom via phone update menu. Then I factory reset and set up again. I noticed memory management issues and also problems with my fingerprint reader not recognizing my finger as easily. Re doing them didn't help. So I thought maybe I would use the fastboot method of restoring the software like the Nexus/Pixel roms. I did that and it flashed successfully but had the same issues. So I decided to manually flash each partition on both slots. Then I set up again. Still had issues. I figured at this point it was definitely a hardware issue because I felt I couldn't be any closer to a stock, out of the factory condition. But I was wrong. The msm tool that uses the Qualcomm drivers is the "Factory Image" I was looking for. It completely restored my phone to the condition it was when I unboxed it. I know logically there shouldn't be a difference but it flashed or fixed something on a certain partition that got changed when I was tinkering(I assume). So long story short. Try the msm tool if you think you have hardware issues before you rule out the software.
Fix-Fingerprint sensor not responsive
Entered to safe mode fixed the issue for me after a lot of trying to make it responsive.
Go into battery /battery optimization /hit the... Menu (advanced optimization) uncheck advanced optimization.
If on she is saving battery in sleep mode.
The issue you guys are describing is simular on rear sensors.
I did the above and it helped. Give it a try.

Proximity sensor and others not working properly after android 10 update

My Pixel 3's proximity sensor reads 0cm after android 10 update(using Sensors Multitool), and double tap to wake and lift to wake not working.
I've search on the internet and I read the post of "FIXED - Android 10 - Sensors Bug". and also tried using proximity sensor reset or calibrate app, but all seem not working.
In my case, all other sensors works perfectly(Active Edge,Ambient Light Sensor, Auto-brightness, Accelerometer, Auto-rotation), but proximity sensor have reading of 0cm all the time. Which make the screen black when having a phone call. And double tap/lift to wake is not working(although my accelerometer is working according to sensors multitool).
I don't have screen protector, and this problem happened just after i first updated it to android 10. so i think it might be just a software problem.
I had the october update already, but it is not fixed.
And this is a phone that never oem unlocked or rooted, no trwp installed ever, so it might be a different problem rather than that FIXED one.
I live in a country that I could not send the phone back for repairing or replacement, and i have to use adb sideload to install every ota
(and most of time when I switch my camera to frontfacing camera, it will buzz and vibrate, but when i switch back to rare and back to front, it can be fixed. this is another small issue, but it happened before this update already, maybe i just need to mention it)
Any idea what might cause this and how can I fix them?
Thanks.
https://forum.xda-developers.com/showthread.php?t=3967525&p=80233629
TonikJDK said:
https://forum.xda-developers.com/showthread.php?t=3967525&p=80233629
Click to expand...
Click to collapse
i read this already and my issue is not the same one as mentioned...
in that issue, all sensors are dead, but not in my case.
my device is never unlocked or rooted, no twrp installed, so maybe nothing has right to write the persist?
and if it is the same one, it should be fixed in october patch, but mine is not FIXED at all.
zhangcx93 said:
i read this already and my issue is not the same one as mentioned...
in that issue, all sensors are dead, but not in my case.
my device is never unlocked or rooted, no twrp installed, so maybe nothing has right to write the persist?
and if it is the same one, it should be fixed in october patch, but mine is not FIXED at all.
Click to expand...
Click to collapse
I factory reset my device yesterday and it fixed a lot of errors I was getting. Have you tried factory reset?
Be sure the phone has backed up to the google drive

Fingerprint sensor not works with miui11

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.
Click to expand...
Click to collapse
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.
Click to expand...
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.
Click to expand...
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.
Click to expand...
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
Click to expand...
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

Fingerprint sensor stopped working

Hi all.
Last week my Moto g8 plus started to show message finger mooved too fast on locked screen randomly.
Then fingerprint sensor stopped working.
I have removed all fingers from it - no comments.
Now when I try to enable fingerprint sensor - it is not working. When cancelling the setup - phone goes into boot loop.
Did anyone have similar failure? Is it to be repaired by factory reset?
As far as I've searched similar problem appeared on Moto one vision but I haven't found any software solution.
lietkynes82 said:
Hi all.
Last week my Moto g8 plus started to show message finger mooved too fast on locked screen randomly.
Then fingerprint sensor stopped working.
I have removed all fingers from it - no comments.
Now when I try to enable fingerprint sensor - it is not working. When cancelling the setup - phone goes into boot loop.
Did anyone have similar failure? Is it to be repaired by factory reset?
As far as I've searched similar problem appeared on Moto one vision but I haven't found any software solution.
Click to expand...
Click to collapse
I never had problem with fingerprint but you can try by factory reset ??* if it continues then install a new firmware
Did rescue with Moto rescue and smart assistant. Still the same story. Looks like it is hardware problem. I think I'm gonna request warranty service

Umidigi S5 Pro FP Sensor Calibration

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?
Click to expand...
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?

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