Fingerprint scanner issues - Xiaomi Black Shark 3 Pro Questions & Answers

Just bought the Black Shark 3 Pro and I like it so far.
However, the fingerprint scanner doesn't work. I can't even add fingerprints. It says CAN'T ADD FINGERPRINT, PLEASE TRY AGAIN.
I reset the phone many times already and it's still doing the same thing.
Can someone help?

SaltyAf said:
Just bought the Black Shark 3 Pro and I like it so far.
However, the fingerprint scanner doesn't work. I can't even add fingerprints. It says CAN'T ADD FINGERPRINT, PLEASE TRY AGAIN.
I reset the phone many times already and it's still doing the same thing.
Can someone help?
Click to expand...
Click to collapse
Yours on beta global ver. You should get a latest version.
Sent from my [device_name] using XDA-Developers Legacy app

SaltyAf said:
Just bought the Black Shark 3 Pro and I like it so far.
However, the fingerprint scanner doesn't work. I can't even add fingerprints. It says CAN'T ADD FINGERPRINT, PLEASE TRY AGAIN.
I reset the phone many times already and it's still doing the same thing.
Can someone help?
Click to expand...
Click to collapse
dial
*#*#466349#*#*
then select the first option (the chineese word)
press start
at the "Flesh Flat" is press your thumb hard onto the fingerprint sensor, make sure the sensor if fully covered by your thumb
then at the "Flat Black" is press your thumb with black cloth against the sensor. again make sure fully cover the sensor

THANK YOU
wrinkletit said:
dial
*#*#466349#*#*
then select the first option (the chineese word)
press start
at the "Flesh Flat" is press your thumb hard onto the fingerprint sensor, make sure the sensor if fully covered by your thumb
then at the "Flat Black" is press your thumb with black cloth against the sensor. again make sure fully cover the sensor
Click to expand...
Click to collapse
It worked bro. Thanks a lot. I started thinking I was having a hardware defect because when I ran a hardware test, that app wasn't even detecting a fingerprint scanner at all. Haha thank youuu

wrinkletit said:
dial
*#*#466349#*#*
then select the first option (the chineese word)
press start
at the "Flesh Flat" is press your thumb hard onto the fingerprint sensor, make sure the sensor if fully covered by your thumb
then at the "Flat Black" is press your thumb with black cloth against the sensor. again make sure fully cover the sensor
Click to expand...
Click to collapse
Well this makes it work again, but half the times, anyone's fp will unlock it. Its not secure.

do the fp calibrate again. i suggest do it bright room, and at the flat black using really black cloth or black box the matte black. not a reflective black
SaltyAf said:
It worked bro. Thanks a lot. I started thinking I was having a hardware defect because when I ran a hardware test, that app wasn't even detecting a fingerprint scanner at all. Haha thank youuu
Click to expand...
Click to collapse
hit the thanks button mate

wrinkletit said:
do the fp calibrate again. i suggest do it bright room, and at the flat black using really black cloth or black box the matte black. not a reflective black
Click to expand...
Click to collapse
It still doesnt properly calibrate it. Anyone can unlock your phone. Dont trust it after unlocking BL.

Hi, may someone help me.. with my problem, i can't add finger print in my Phone on lockscreen, before it, i wanna only add Pin and Password, but Immediately add finger print too, My finger not reading in system/system not displaying my finger

wrinkletit said:
dial
*#*#466349#*#*
then select the first option (the chineese word)
press start
at the "Flesh Flat" is press your thumb hard onto the fingerprint sensor, make sure the sensor if fully covered by your thumb
then at the "Flat Black" is press your thumb with black cloth against the sensor. again make sure fully cover the sensor
Click to expand...
Click to collapse
Thanks for the guide. However I can add fingerprint but cannot unlock with it.

Related

[Q] proximity sensor non existent?

Hello,it seems there is no Q&A forum for this device, so here is my doubt:
Although the tech manual for the xperia S from the sony website report a proximity sensor, I fail to find one on my phone.
There seems to be a black oval spot on the glass next to the light sensor as if some sort of sticker can be removed to install the sensor.
The light sensor seems to work, since I've seen the screen go darker and brighter, but when I'm in a call and put the phone in my ear the screen wont shut off like in my old SGS nor will it turn on when I move the phone away from my face.
are your phones like mine? or is mine a defective unit?
I guess ur device has something wrong with it.
By the way; did u place a screen protector?? Coz if u did that may be the problem!
I think the light and proximity sensor are the same.
There is something wrong with your phone,maybe you should try to flash a new firmware.
Sent from my LT26i using Tapatalk 2
grained said:
Hello,it seems there is no Q&A forum for this device, so here is my doubt:
Although the tech manual for the xperia S from the sony website report a proximity sensor, I fail to find one on my phone.
There seems to be a black oval spot on the glass next to the light sensor as if some sort of sticker can be removed to install the sensor.
The light sensor seems to work, since I've seen the screen go darker and brighter, but when I'm in a call and put the phone in my ear the screen wont shut off like in my old SGS nor will it turn on when I move the phone away from my face.
are your phones like mine? or is mine a defective unit?
Click to expand...
Click to collapse
Hi,
Mine works fine...
Do this:
1>Go to dialpad and type *#*#7378423#*#* (*#*#SERVICE#*#*)
2>A menu pops up in that u will see service tests select that
3>Then scroll down and select Proximity Switch
4>Initially it will display as OFF. Now u place your finger or hand on the Proximity Sensor, then the value of Proximity Switch on the screen will change to ON.
If this is working then the sensor is just fine u need to update the firmware else u need to go and replace the piece IMO though.
Thank you all for the feedback.
I used the service menu to check the sensors ...
indeed the proximity sensor is always off, even when I put my finger on it, it seems someone forgot to remove the black paint from behind the glass, but I will update it anyway to make sure before returning it.
grained said:
Thank you all for the feedback.
I used the service menu to check the sensors ...
indeed the proximity sensor is always off, even when I put my finger on it, it seems someone forgot to remove the black paint from behind the glass, but I will update it anyway to make sure before returning it.
Click to expand...
Click to collapse
sensor is IR, so darkened window is normal for it. but if it have always closed windows - than its status must be always ON. so, most likely you have faulty sensor (or bug in firmware)
goodwin_c said:
sensor is IR, so darkened window is normal for it. but if it have always closed windows - than its status must be always ON. so, most likely you have faulty sensor (or bug in firmware)
Click to expand...
Click to collapse
Hi,
Exactly it should be showing status as ON if it's covered replace the piece as soon as possible
shoz_on4u said:
Hi,
Exactly it should be showing status as ON if it's covered replace the piece as soon as possible
Click to expand...
Click to collapse
If it was covered by the glass/ cover it would show OFF because the glass doesn't radiate heat like your body does.
Sent from the Delta Quadrant using a transwarp conduit.
Pezo said:
If it was covered by the glass/ cover it would show OFF because the glass doesn't radiate heat like your body does.
Sent from the Delta Quadrant using a transwarp conduit.
Click to expand...
Click to collapse
Proximity sensor on phones does not react to heat. It have simple IR transmitter, which emits a beam, and IR sensor, which react on reflected beam.
goodwin_c said:
Proximity sensor on phones does not react to heat. It have simple IR transmitter, which emits a beam, and IR sensor, which react on reflected beam.
Click to expand...
Click to collapse
You are right, just tested it and it seems to be a reflective sensor.
thanks for the tips, it was indeed a faulty sensor and they gave me a new phone right away .
I hope I don't get any more problems like a yellow tint :X (knock on wood with fingers crossed)

Info needed: Fingerprint scanner usage rest or push button? Nfc antenna location?

Please help me in answering 2 questions
1. When the phone is in idle screen off state, in order to turn it on using fingerprint do you need to physically press the button (click) or just rest your finger on the sensor and it will turn on?
2. Do you have any idea where the NFC antenna is physically inside the phone? Top part middle or bottom part? I am looking to buy a case with a piece of metal in the middle and wanted to check if this will interfere with NFC.
Thank you
Melmic said:
Please help me in answering 2 questions
1. When the phone is in idle screen off state, in order to turn it on using fingerprint do you need to physically press the button (click) or just rest your finger on the sensor and it will turn on?
2. Do you have any idea where the NFC antenna is physically inside the phone? Top part middle or bottom part? I am looking to buy a case with a piece of metal in the middle and wanted to check if this will interfere with NFC.
Thank you
Click to expand...
Click to collapse
1. You don't need to click the power button to activate the finger print scanner, its just like the fp scanners that are positioned on th rear panel and works just as well I find. It does click as a button too if used that way but doesn't need to to trigger the fp scanner.
2. Not sure about this one sorry. I have the 9s which doesn't have NFC.
Sent from my Redmi Note 9S using Tapatalk
1. You can do both, there's an option in settings. By default, you don't have to press it.
2. Seems to be right under the camera module. Take a look at a disassembly of the phone and cross check with the case you want to buy.
I know for sure that in my joyeuse device nfc is around camera. Whole camera module is literally in the middle of the wire.
Gajdalf said:
I know for sure that in my joyeuse device nfc is around camera. Whole camera module is literally in the middle of the wire.
Click to expand...
Click to collapse
is that a clear back? Niiiiice!!!!! How hard was it? I would do it if I didn't have a warranty
chrismin13 said:
is that a clear back? Niiiiice!!!!! How hard was it? I would do it if I didn't have a warranty
Click to expand...
Click to collapse
Yep it's clear back.
Now I would do things little bit differently, as you can see dust can get inside.
As to how hard was it. If you are familiar with repairing of phones and de-gluing glass backs then it's pretty easy. Glass back is glued much more than I've seen on other phones, but it's doable.
Thin film glued to glass from underneath is really easy to remove, no specialized tools nor paint stripper needed.

General Hey Google: Acknowledge & Fix The Fingerprint Scanner

11-9-2021 - RETURNING DEVICE
I’ve given it some time to try screen different screen protectors but the nail in the coffin for me is Googles response to how bad the fingerprint scanner is. I can’t accept that as a answer with no foreseeable fixes or updates.
*****************************************
Tempered glass on and off....I've tried all the tips and tricks floating around from Google and YouTubers. The fingerprint scanner just seems to be bad all together. About 4/5 out of 10 times it recognizes my finger. When it does it's super slow.
A update went out last night that people are saying solved the issue...…It has not.
How have you dealt with or solved the issue at hand?
So far no problem with my fingerprint scanner.
One thing you could try (if you haven't done that already) is to make multiple scans for the same finger.
I made 2 for my right thumb, 2 for my right index finger and 1 for my left thumb. So far no problems... Hope that it will get better for you soon
I hate to be that guy, but my fp scanner is flawless on the Pixel 6 (at least as snappy as the OP6T was). Keep in mind, I don't use a screen protector.
phaino00 said:
I hate to be that guy, but my fp scanner is flawless on the Pixel 6 (at least as snappy as the OP6T was). Keep in mind, I don't use a screen protector.
Click to expand...
Click to collapse
I've no issues with it either also coming from OP6T. Registered prints twice and made sure to scan different areas including edges. Works perfectly and is quick enough for me
No issues on my end. I have a cheap screen protector on to. It's slow but it's been working. And I have the driest hands ever.
I've got a screen protector on and it always reads my index finger 100% since day 1.
But initially it read my thumb only 50% of the time, until I figured out that setting up prints initially makes all the difference.
Even before the November OTA fix (which I sideloaded as it was not coming through as OTA), I got it working.
Now its's almost as nice as on my 4a(5G) which is 100% accurate.
Here's a Link to my method.
I am using the ivoler tempered glass screen protector and I can never get the fingerprint reader to work.
If you have a functional finger print reader and using a screen protector, what brand is it?
i'm using tempered glass and can't get it to read. thinking about taking it off.
v said:
I've got a screen protector on and it reads my index finger 100%.
It does however read my thumb only 50% of the time.
Click to expand...
Click to collapse
Which screen protector do you have?
Have those using screen protectors switched on this setting?
charlieb620 said:
Tempered glass on and off....I've tried all the tips and tricks floating around from Google and YouTubers. The fingerprint scanner just seems to be bad all together. About 4/5 out of 10 times it recognizes my finger. When it does it's super slow.
A update went out last night that people are saying solved the issue...…It has not.
How have you dealt with or solved the issue at hand?
Click to expand...
Click to collapse
I had the same issues. The update didn't improve things either. I then had to factory reset (for other reasons) and FP reading is now running really well. This is with the 'difficult' spigen glass align master protector. Have yet to test it in daylight though and suspect it won't work quite as well.
After reading through everyone's post....didn't want to quote everyone but:
-Registered every angle of my finger whether thumb or index. 2 registered per same finger.
-Turned on Sensitive Touch or whatever it's called for Screen Protectors
-Turned Always on Display on to keep the fingerprint there without double tap
-Removed Screen Protector
-Updated phone
I'm also using ivoler tempered glass.
Don't think I'm missing anything else.
Only thing left to do that I saw someone did was go a Factory Reset.
silverkin said:
Which screen protector do you have?
Click to expand...
Click to collapse
TOCOL 6 Stück Schutzfolie...
TOCOL 3+3 Stück Schutzfolie kompatibel mit Google Pixel 6 Panzerglas 3 Stück,3 Stück Kamera Panzerglas 9H Panzerglasfolie Positionierungsrahmen Blasenfrei Displayschutzfolie: Amazon.de: Elektronik & Foto
TOCOL 3+3 Stück Schutzfolie kompatibel mit Google Pixel 6 Panzerglas 3 Stück,3 Stück Kamera Panzerglas 9H Panzerglasfolie Positionierungsrahmen Blasenfrei Displayschutzfolie: Amazon.de: Elektronik & Foto
www.amazon.de
mitchst2 said:
Have those using screen protectors switched on this setting?
Click to expand...
Click to collapse
yep already tried that. had the phone since Tue and the day 1 update did nothing
I believe that people are struggling with the fingerprint reader.
That being said, I have had no issues with my P6. I don't have a screen protector on it. It reads my finger print 90-95% of the time when I press and hold my finger on the scanner until it unlocks (about 1 second). I've never had a in-screen reader, but it is certainly not a "tap the finger" on the reader like some phones are. If you are coming from an ultrasonic reader, you will have to reteach yourself to "touch and hold."
It reads my thumb too just fine. Be sure to watch how your thumb typically hits the sensor (for me it is more of the side of the thumb when I am holding the phone in one hand) and be sure to emphasis that area of the thumb when setting it up - but be sure to scan the entire finger/thumb too.
I've only saved my left thumb and right index finger once each (there are only "two fingerprints added" on my phone right now and everything works very reliably with either finger.
sic0048 said:
I believe that people are struggling with the fingerprint reader.
That being said, I have had no issues with my P6. I don't have a screen protector on it. It reads my finger print 90-95% of the time when I press and hold my finger on the scanner until it unlocks (about 1 second). I've never had a in-screen reader, but it is certainly not a "tap the finger" on the reader like some phones are. If you are coming from an ultrasonic reader, you will have to reteach yourself to "touch and hold."
It reads my thumb too just fine. Be sure to watch how your thumb typically hits the sensor (for me it is more of the side of the thumb when I am holding the phone in one hand) and be sure to emphasis that area of the thumb when setting it up - but be sure to scan the entire finger/thumb too.
I've only saved my left thumb and right index finger once each (there are only "two fingerprints added" on my phone right now and everything works very reliably with either finger.
Click to expand...
Click to collapse
That's great, but I prefer a screen protector.
Tool Belt said:
That's great, but I prefer a screen protector.
Click to expand...
Click to collapse
I agree. I normally put a screen protector on my phones as soon as I get them. However, I think we are just going to have to wait to see what works with the optical fingerprint scanner and what doesn't. This isn't just a P6 issue however. Tempered glass protectors (my go to choice previously) are unfortunately notoriously bad with optical scanners.
sic0048 said:
I agree. I normally put a screen protector on my phones as soon as I get them. However, I think we are just going to have to wait to see what works with the optical fingerprint scanner and what doesn't. This isn't just a P6 issue however. Tempered glass protectors (my go to choice previously) are unfortunately notoriously bad with optical scanners.
Click to expand...
Click to collapse
I agree, but at this time I will get frustrated with the phone and hope the screen protector works if and when I drop it.
I've had tempered glass screen protectors on optic in screen scanners. This could be a simple case of trial and error. I have more protectors coming in to see. I also have 10 days left to return this device if nothing solves the issue. Taking the screen protector off is out of the question.
The fingerprint scanner is by far my the worst thing on this phone. It's just as bad as the one on my Galaxy tab s7+. But I'm sure it can be fixed with an update. It's just ridiculously slow.

Question Fingerprint reader tip

If your like me and have struggled with the reader try this method.
Place finger on read and slowly move it up.
Works for me everytime and merry Xmas to you all
Being required to do anything "slowly" isn't a tip. It's a bad reader, and Google needs to acknowledge it. Bad design and implementation on their part. That's it.
never had a problem with mine using the wiping forehead method for the enrolment. Slower than my Oneplus yes, but never failed
dalelindley76 said:
If your like me and have struggled with the reader try this method.
Place finger on read and slowly move it up.
Works for me everytime and merry Xmas to you all
Click to expand...
Click to collapse
I have no problem with the fingerprint reader and I'm using a 3rd party screen protector on the display.
I just got the TOCOL screen protectors after having the phone for a few weeks. Once I put them on I redid my fingerprints for fun and it seems to work just as before. I didn't boost my sensitivity either.
Still no luck for me after adding the screen protector
Zero replies actually acknowledging the advice.
After trying this it seems to work!
I do:
Place
Move a few mm
Stop.
Works great!
I have a Zagg and am still not impressed but this is helping a lot!!
bush911 said:
Still no luck for me after adding the screen protector
Click to expand...
Click to collapse
Try the Gadgetshieldz screen protector which I'm using for a month now, I have no issue with the fingerprint sensor as I mentioned before.
Oddly, while the reader is slower than the one on the back of my Pixel 2XL, I've had no problems with the reader at all unless I move my finger while it's trying to scan. When you guys set up your fingerprints did you follow the advice given and moved your finger so the scanner could scan different portions of the fingerprint during the setup?
Got a Spigen screen protector on and the right thumb is more hit and miss than the left thumb. Unlock rate is about 6/10 for left and 4/10 for the right thumb. They need to fix this issue, little things like this can get annoying. Came from FaceID which was instant no matter in day or total darkness.
I set my phone up straight out of the box and I haven't had a single issue with the fingerprint reader at all. Idk if it's my skin, how I place my thumb on the phone, etc.. I was honestly prepared to have it be awful from everything I've read but mine isn't
strongergravity said:
I just got the TOCOL screen protectors after having the phone for a few weeks. Once I put them on I redid my fingerprints for fun and it seems to work just as before. I didn't boost my sensitivity either.
Click to expand...
Click to collapse
Tocol completely destroyed the ability of my FPR to recognize fingerprints, with or without sensitivity enhancement, with or without forehead fat, etc. But I do have very dry skin.
Thanks - tried and so far seems to improve pass rate....not 100% successful mind you.. Maybe I am moving the finger too much..

Question FingerPrint Reader Woes w/Whitestone Dome Glass

Sunday night updated to the Jan security update on the Pixel 6. Prior to that, the finger print reader was working (but barely). I got distracted and forgot to check how the fingerprint recognition was working. The next day, forgot completely about the update and installed the Whitestone dome protector (which went mostly good but I've got three small bubbles, but that's another story).
After installing the dome, they recommend retraining the reader. However, even after training with multiple fingers, the reader, very, very rarely works probably less than 1% of the time if even that. Any ideas what I could try to improve the accuracy? The January update seems to have improved accuracy for most people. I just wish I had tested out the January update more thoroughly before adding the screen protector.
I bought the Dome glass,too. After replace it with the old glass protection the fingerprint was worse than before.
I trained the new, but not better.
What helped for me was to train the FPS again with more pressure of the finger on the FPS. Now it's working almost like the old protection.
Seosam said:
I bought the Dome glass,too. After replace it with the old glass protection the fingerprint was worse than before.
I trained the new, but not better.
What helped for me was to train the FPS again with more pressure of the finger on the FPS. Now it's working almost like the old protection.
Click to expand...
Click to collapse
Do you have to apply more pressure when logging in also or just for the training?
mrlad said:
Do you have to apply more pressure when logging in also or just for the training?
Click to expand...
Click to collapse
Just for the training.
Did you enable 'increase touch sensitivity'?
chaimav said:
Did you enable 'increase touch sensitivity'?
Click to expand...
Click to collapse
No, I never activated it...
I just installed the Whitestone Dome yesterday. My fingerprint seemed to work the same but I went ahead and did a retrain. I think it is still close to without it (WD) except for 1 finger. I had an issue with that same finger on my old OP6T. Good Luck.
I also installed yesterday Whitestone Dome, the fingerprint reader works just like before almost every time. I never had any problems with the FPR, it only failed when I lifted the thumb to early. I did not retrain my thumb, increased Touch sensivity is still disabled. I don't know if it matters, but 4 finger profiles are my thumb.
Seosam said:
No, I never activated it...
Click to expand...
Click to collapse
Try enabling it. It's a toggle switch under Settings > Display.
chaimav said:
Did you enable 'increase touch sensitivity'?
Click to expand...
Click to collapse
Yes, I did enable the 'increase touch sensitivity' but that hasn't helped.
IdroogI said:
I also installed yesterday Whitestone Dome, the fingerprint reader works just like before almost every time. I never had any problems with the FPR, it only failed when I lifted the thumb to early. I did not retrain my thumb, increased Touch sensivity is still disabled. I don't know if it matters, but 4 finger profiles are my thumb.
Click to expand...
Click to collapse
I tried doing 4 finger profiles of the thumb but that didn't help either.
Does anyone one know if training indoors, does lighting impact the accuracy of recognition?
I did a quick search and found these other threads on the P6 finger print issue.
There are few more if anyone wants to do a little research.
Pixel 6 fingerprint sensor calibration
Hi, I had to replace my pixel 6 display and the fingerprint sensor with it. When I went on to calibrate the sensor with Google's calibration software, it says "Couldn't find the unique calibration software for this device" after trying to...
forum.xda-developers.com
EDITED: December update - screen protectors still interfere with the fingerprint reader
Note: I have edited the subject line to reflect the latest data I have. See post #3 below. It appears that the Tocol screen protector, which many reviews said does not interfere with the fingerprint reader, is the actual culprit...
forum.xda-developers.com
Fingerprint + Screen protector
I know that i'm many out of thousands but i can't find anything related to my problem, so i got a pixel 6 and i just got a screenprotector from tauri, fingerprint worked fine before untill i placed the screen protector. i just enrolled my...
forum.xda-developers.com
Is there a tempered glass screen protector that works with the finger print scanner?
Anyone have any luck with getting a tempered glass screen protector that works with the fingerprint scanner? I have read several threads about this. Some suggest adding same finger twice. Some suggest increasing sensitivity of the screen, and...
forum.xda-developers.com
The best tip for getting it work I have seen is to use hand lotion. It really struggles with dry skin

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