How bad is your fingerprint reader? - LG V10 Q&A, Help & Troubleshooting

I'm getting tired of touching this thing three, four, or even five or more times to log in.
Is anyone else having a similar experience? AT&T phone, latest software, no case. It's just not reliable. I frequently get in on one press, but at least a couple times an hour I have to press more than once. It can be a real nuisance.

MM fixes the FP issue. Mine works flawless every time and i'm using an Otterbox Defender Case With a Tempered Glass Screen Protector.

Delete your original fingerprint scans and re-do them
Sent from an AT&T LG V10

Marshmallow fixed my fp scanner it is 100% smoother than lollipop

Delete all your fingerprints and add new. It helps a lot. I did it yesterday and now almost always it unlocks after first try.

Bummer, I've done all that. I wonder if mine is just a lemon.

It works like 95%+ accurate

"95% accurate" means it misses one out of twenty times. For most users, that would be at least once every couple of hours, probably more like once an hour.
How often does your FP reader fail to recognize your finger?

Before marshmallow it was compete crap in fact I cut a section of my case to get contact with the metal sides to get it to work. With the marshmallow update it works fine without having to touch the sides. Recalibrate your finger sensor again, delete the old ones.
You may also want to try a factory reset, I know it's extreme but there is a tendency for it to fix a lot of hiccups.
Last do an exchange if you can.
You're positive you have marshmallow installed?
Sent from my LG-H901 using XDA-Developers mobile app

Mine works 98% of the time.. Register 3 finger prints of the same finger at different angles
Sent from my Lenovo X3a40 using Tapatalk

Yes, it's Marshmallow, latest update. I don't expect a reset to make a difference, but AT&T would probably require it before doing an exchange. I'll ask them.
Are you guys saying you go entire days without ever getting "Try again" from the phone?

Since marshmallow yes it has been flawless. I would totally look into getting an exchange at this point.
Sent from my LG-H901 using XDA-Developers mobile app

Related

Fingerprint sensor faulty (no case)?

I'm a field tech and a father so my fingers can be cut up n dirty with glitter on them. I'm afraid that's not it though.
Anyone else having problems with the fingerprint sensor? It works great for a day or two then only every once in a while down to having to reprogram out of annoyance.
I'm currently attempting one index finger x4. Had been using 2 index x2.
secretLOVER said:
I'm a field tech and a father so my fingers can be cut up n dirty with glitter on them. I'm afraid that's not it though.
Anyone else having problems with the fingerprint sensor? It works great for a day or two then only every once in a while down to having to reprogram out of annoyance.
I'm currently attempting one index finger x4. Had been using 2 index x2.
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Click to collapse
yes...same here...there are times in it works flawlessly and times when it doesn't register at all.
i feel like having the metal sides as part of the fingerprint sensor is making it difficult to use...with or without a case
jdiddy_ub said:
yes...same here...there are times in it works flawlessly and times when it doesn't register at all.
i feel like having the metal sides as part of the fingerprint sensor is making it difficult to use...with or without a case
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Click to collapse
FPR is working for me flawlessly 100% of the time without a case on it, with a case is working 50% of the time. If your FPR in your phone is not working without a case 100% of the time is probably a bad set of finger prints registered or a defective phone. Try to register your finger prints again and se if that works. Good luck.
parusia said:
FPR is working for me flawlessly 100% of the time without a case on it, with a case is working 50% of the time. If your FPR in your phone is not working without a case 100% of the time is probably a bad set of finger prints registered or a defective phone. Try to register your finger prints again and se if that works. Good luck.
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Click to collapse
how many times did you register 1 set of prints? i have my right index finger (2x) and my left one (1x)...are people doing each finger more than that to ensure that it registers from every possible angle?
i have also deleted it and did it a over a couple of days ago...still have issues...it works most of the time though...just doesn't work here and there
the times it doesn't work, i dont believe (but I could be wrong) that it has to do with the finger placement..its just like it decided this time you need to use the pin code instead...so it will just fail until it forces me to enter the pin
I find mine doesn't work nearly as well when my fingers are dry, or wrinkly when excessively wet.
Other than that, even with my case on, the scanner works 90% of the times. It usually doesn't work too when I make poor contact with the scanner.
When my fingers are wet it doesn't work. I'm pretty sure they aren't making it fail on purpose to put the code in. Make sure you place your finger at the same angle or close to it, as to when you recorded your prints.
Sent from my LG-H901 using Xparent Skyblue Tapatalk 2
I have the same finger recorded a few times and it tells me to retry every time I go to unlock. This is the worst FPR I've had on a device, but still keep it on and just keep retrying, hah.
Im just curious as to how are you guys scanning?
Mine works flawless with a rugged case and no mods (like the foil tape)to the case.
I've only had this phone since Thursday and i just did the FPS yesterday..
Heres how I do my FPS.
Click and Release Button
But leave finger over the FPS ... Works 100% since I got it figured out.
And I only have my left index finger registered...
Double0EK said:
Im just curious as to how are you guys scanning?
Mine works flawless with a rugged case and no mods (like the foil tape)to the case.
I've only had this phone since Thursday and i just did the FPS yesterday..
Heres how I do my FPS.
Click and Release Button
But leave finger over the FPS ... Works 100% since I got it figured out.
And I only have my left index finger registered...
Click to expand...
Click to collapse
hmm interesting...i press the button, wait for the screen to turn on then place my finger....your way is quicker...i'll try doing that from now on
Mine is working fine without a case, but I recently got the VERSUS case, and only managed to get it to unlocked successfully only from 1 position, with the finger vertically 90 degrees, and using the finger tip

S10 fingerprint security purportedly defeated by use of cheap silicone case

https://www.bbc.com/news/amp/technology-50080586
https://www.bleepingcomputer.com/news/security/samsung-galaxy-s10-fingerprint-reader-defeated-by-silicone-case/
https://www.forbes.com/sites/gordonkelly/2019/10/15/samsung-galaxy-s10-note10-plus-fingerprint-reader-warning-upgrade-galaxy-s11/#3f1abd4224ae
The issue applies not only to unlocking phone but also to using apps, such as banking apps, that allow for fingerprint login.
elbee222 said:
https://www.bleepingcomputer.com/ne...fingerprint-reader-defeated-by-silicone-case/
https://www.forbes.com/sites/gordon...ader-warning-upgrade-galaxy-s11/#3f1abd4224ae
The issue applies not only to unlocking phone but also to using apps, such as banking apps, that allow for fingerprint login.
Click to expand...
Click to collapse
Well, looks strange, is ultrasonic so has nothing to do with the case... i think is fake but who knows
I'm calling BS on that story. How can a case affect the workings of the fingerprint reader?
Intratech said:
I'm calling BS on that story. How can a case affect the workings of the fingerprint reader?
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Click to collapse
YEAH, that was my first thought also. I could almost see it if it was a S10e but there'd have to be some serious crap going on for a case to defeat a screen reader.
Well only one way to find out buy $3 case and do it our self....
Sent from my SM-N960U using Tapatalk
This is an old problem, which occurred 2 month after the official release of this phone to the market. I was able to repro it back in April on my S10, but after 1/2 months all had been fixed.
In every case remember that protective glass not compatible with ultrasonic fingerprint require more pressure on the screen, and this translates into less accuracy in saving and reading the finger data.
https://www.bbc.com/news/amp/technology-50080586
(Updated with new link.)
So it wasn't a gel case then and a screen protector. That makes more sense now as you can see how the screen protector can affect the fingerprint reader. Just tested mine to be sure and only the registered fingerprint can unlock it.
Intratech said:
So it wasn't a gel case then and a screen protector. That makes more sense now as you can see how the screen protector can affect the fingerprint reader. Just tested mine to be sure and only the registered fingerprint can unlock it.
Click to expand...
Click to collapse
Same here. I tried all my fingers and only the 2 registered fingers can unlock my phone. I kept the factory installed screen protector on for a day before I finally couldn't stand it anymore and removed it. Even with the factory installed screen protector, I still could only unlock my phone with the 2 registered fingers.
SAMSUNG confirmed From Discover on Google https://www.sammobile.com/news/majo...print-flaw-will-be-fixed-with-software-update
Sent from my SM-N960U using Tapatalk
I don't see it as a big problem when the phone first came out. If XDA is a good representation then the fingerprint reader didn't even work for the owners own fingers, much less a stranger's. ?
Tel864 said:
I don't see it as a big problem when the phone first came out. If XDA is a good representation then the fingerprint reader didn't even work for the owners own fingers, much less a stranger's. [emoji16]
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Click to collapse
This. Sad, but very true.
Sent from my SM-G975W using Tapatalk
S10e unaffected?
If I understand the reports correctly, the following has happened:
You install a screen protector and THEN register your prints. The sensor "reads" the structure of the protector, not your prints. Hence, it does not matter, what finger is used as the protector unlocks the phone. However, this also means - as I understand it - that if you register you fingerprints with Samsung's or another protector that does not have the problem (or without any screen protecor), you are safe. The reports sound as if anybody could just unlock your phone by using a $3 screen protector. That is not the case, as I understand it. So basically, just try if you can unlock your phone with fingers you have not registered. If that does not work, you are safe.
Please correct me if I am wrong.
EDIT: The videos in the link below seem to suggest otherwise...
https://mobile.twitter.com/Sta_Light_/status/1184844865730801664
It effects the Samsung Galaxy Tab s6 which uses an optical fingerprint sensor. The ultrasonic and the optical sensors are entirely different. So it has to be a software bug. Which can be patched.
elliott2456 said:
https://mobile.twitter.com/Sta_Light_/status/1184844865730801664
It effects the Samsung Galaxy Tab s6 which uses an optical fingerprint sensor. The ultrasonic and the optical sensors are entirely different. So it has to be a software bug. Which can be patched.
Click to expand...
Click to collapse
Just tried this with mine using two cases and thankfully it doesn't unlock. Weird bug
I've disabled fingerprint authentication for my payment & banking apps just to be safe and set them to use the good old pin.
Samsung will start rolling out the fix for this issue within the next 24 hours apparently.
Got the update!
I'm sorry, I posted this in another thread, but I will also ask here.
Does anyone know this:
If you are with the factory applied screen protector, do you have to also remove it and re-register your fingerprints after updating? Or this is only for other screen protectors (silicone)?
It's not very clear from the update explanation.
tiho5 said:
I'm sorry, I posted this in another thread, but I will also ask here.
Does anyone know this:
If you are with the factory applied screen protector, do you have to also remove it and re-register your fingerprints after updating? Or this is only for other screen protectors (silicone)?
It's not very clear from the update explanation.
Click to expand...
Click to collapse
The initial statement from Samsung that I read said it was only for third party screen protectors. I did see another one that said all screen protectors, so yeah that is a little confusing.
The initial story I read said it was from a cheap screen protector then there was another story that said it was a cheap silicone case then it switched again to a cheap screen protector. Then the statement from Samsung was about screen protectors. Definite confusion. I removed the factory installed one after a day because I could feel the edge every time I swiped up or from the side and it annoyed me.

S21 Ultra Finger Print Sensor Garbage compared to S10e, return phone??

I had a S10e and honestly it was probably one of the best phones I have ever owned. The size was perfect, the cameras were excellent, and the best feature of all was the fingerprint sensor. It worked virtually 100% of the time, first time, no matter what. Sure Apple had face id, but it didn't really matter because the fingerprint sensor was so effortless.
I work with my hands, my hands are frequently dried out, or dirty. Frankly I never thought anything of this because it never created any issues.
I just upgraded to the s21 ultra because I wanted the new cameras and now I regret it.
The fingerprint sensor literally does not work. I have tried removing the TPU screen protector that I have on it. I have four fingerprints saved and they are all of my right thumb. And it literally won't work. every time I pull my phone out of my pocket it tries and tries until it locks itself. When I go to verify fingerprints it gets it maybe one out of 10 attempts. When I am trying to input fingerprints, half the time it says it can't even detect the finger on the screen.
Another major problem is glass screen protectors work much better and you can get a glass screen protector for an s10e for a dollar. You cannot put glass screen protectors on s21u without enormous expense and effort. And they still compromise the fingerprint sensor. The user experience of the s21u has been frankly absolutely terrible compared to the s10e.
And their face ID is completely useless as well. Most of the time it doesn't work and if you are in the dark or low light forget about it.
I really want this phone because of the camera lenses. The 10x lens really is amazing. 100x is probably what you can get to cropping images anyway.
but none of that matters because it's something that you use every once in awhile. You need to get into your phone hundreds of times a day. If they're access technology doesn't work in my opinion the phone is a bust.
It is driving me crazy.
Are they going to fix this or should I get rid of this thing and go back to an s10e?
Read the post literally right above yours about the 30 second fix. I've had many Samsung phones with the fingerprint sensor underneath the screen and I agree with you totally, it does not work. How this isn't the very first topic discussed on any phone review is beyond me. It should be class action lawsuit.
But, my fingerprint sensor works reasonably well now by doing the short 'fix' above. It wasn't targeted to fixing the fingerprint sensor, kind of a by-product. I suggest you give it a try, literally takes 30 seconds and can be reverted back in the same 30 seconds.
Worth a try, good luck.

S21 fingerprint sensor reliability

I have recently got an S21 Exynos version and the fingerprint reader is useless.
I have the standard screen protector it came with on it and have tried training it multiple times and even doing the same finger more than once and the best I get is sometimes it works 80% of the time and then at other times of the day it'll fail 100%.
I'm not sure if it depends on if my hands are cold or warm and looking at my fingers my fingerprints don't look particularly pronounced but as it stands the phone may as well not have a fingerprint scanner.
Previous phones with dedicated fingerprint sensors have been better but never perfect.
Is this just me or do others have lots of problems too?
This is my first phone with an in-display fingerprint reader, and I certainly prefer ones like the one on my old Note 9, which were literally flawless.
That said, I would classify this one as "serviceable". It doesn't always work, though some of that might be my dry fingers/hands from all the washing and drier winter air. It seems to be improving in reliability as the weather warms and the air gets more humid. I do occasionally fail enough on the fingerprint that I have to enter my password, which is annoying to say the least.
Blowing warm, moist air on my fingers does tend to help, but then I tend to smudge up the screen a bit more. Oh well. Something I'll have to live with.
Hurricane Andrew said:
This is my first phone with an in-display fingerprint reader, and I certainly prefer ones like the one on my old Note 9, which were literally flawless.
That said, I would classify this one as "serviceable". It doesn't always work, though some of that might be my dry fingers/hands from all the washing and drier winter air. It seems to be improving in reliability as the weather warms and the air gets more humid. I do occasionally fail enough on the fingerprint that I have to enter my password, which is annoying to say the least.
Blowing warm, moist air on my fingers does tend to help, but then I tend to smudge up the screen a bit more. Oh well. Something I'll have to live with.
Click to expand...
Click to collapse
Thanks for the quick reply, glad to hear it's working reasonably for you.
Hurricane Andrew said:
It doesn't always work, though some of that might be my dry fingers/hands from all the washing and drier winter air. It seems to be improving in reliability as the weather warms and the air gets more humid.
Click to expand...
Click to collapse
This is 100% why. Throw some lotion on your hands and it will work 100%. Plus, you'll feel better.
entropism said:
This is 100% why. Throw some lotion on your hands and it will work 100%. Plus, you'll feel better.
Click to expand...
Click to collapse
Sadly this doesn't seem to make any difference.
It's very erratic, sometimes it works several times in a row but at others it doesn't work at all for multiple attempts.
Very odd.
I've recently got my S21 and rather quickly found out that I have to push the screen very lightly and it works almost every time. To begin with I assumend that I had to push quite hard, but doing that it didn't work very well, so I stumpled on the light press tip. Anyone else with the same experiences?
Harboe said:
I've recently got my S21 and rather quickly found out that I have to push the screen very lightly and it works almost every time. To begin with I assumend that I had to push quite hard, but doing that it didn't work very well, so I stumpled on the light press tip. Anyone else with the same experiences?
Click to expand...
Click to collapse
It worked with the factory protector on it every time. No need to press deep or medium even. Just worked. Soon as a o removed this for some glass protection, boom. It simply will not work. And I've blown way too much money on protectors that do not work! Really sad, since I came from multiple Chinese budget flagships that do this perfectly. Since they use light instead of sound/vibrations.
Ollie2 said:
I have recently got an S21 Exynos version and the fingerprint reader is useless.
I have the standard screen protector it came with on it and have tried training it multiple times and even doing the same finger more than once and the best I get is sometimes it works 80% of the time and then at other times of the day it'll fail 100%.
I'm not sure if it depends on if my hands are cold or warm and looking at my fingers my fingerprints don't look particularly pronounced but as it stands the phone may as well not have a fingerprint scanner.
Previous phones with dedicated fingerprint sensors have been better but never perfect.
Is this just me or do others have lots of problems too?
Click to expand...
Click to collapse
I've switched from my trusty old Oneplus 5T to the S21 Exynos version, and I'm seriously regretting it. The fingerprint sensor is useless with or without a screen protector, and with Settings -> Display -> Touch Sensitivity turned on. I've deleted all fingerprints and rescanned them in multiple times (obviously after removing/applying a screen protector) and nothing works.
Demarchist said:
I've switched from my trusty old Oneplus 5T to the S21 Exynos version, and I'm seriously regretting it. The fingerprint sensor is useless with or without a screen protector, and with Settings -> Display -> Touch Sensitivity turned on. I've deleted all fingerprints and rescanned them in multiple times (obviously after removing/applying a screen protector) and nothing works.
Click to expand...
Click to collapse
I've gone back to thin film for the display. It will not provide any drop protection but this way the fingerprint works of the time. Like it does without the protector. First time in many many years I'm skipping glass protection. I actively avoid curved displays and one reason for that is the glass protectors are horrible compared to flat display protectors.
I don't have any kind of screen on my S21 and so far (only had it a couple of days) the fingerprint sensor has been pretty reliable. I've even almost got to the point where I can wake up the phone by putting my finger in the right spot about 50% of them time (other times I need to tap the screen so it will show me where to put my finger).

Question Fingerprint

I have come to the conclusion that Google gave up on the under the screen optical fingerprint reader. Tried with out a screen protector, tried turned on off touch screen sensitivity. Any idea?
mikerowes69 said:
I have come to the conclusion that Google gave up on the under the screen optical fingerprint reader. Tried with out a screen protector, tried turned on off touch screen sensitivity. Any idea?
Click to expand...
Click to collapse
It's a known issue ever since launch and nothing seems to be working out. I've enrolled 6 fingerprints and success rate is less than 50% first time. I gave up on this after using it for couple of weeks and accepted the fact that there's no solution.
Aks said:
It's a known issue ever since launch and nothing seems to be working out. I've enrolled 6 fingerprints and success rate is less than 50% first time. I gave up on this after using it for couple of weeks and accepted the fact that there's no solution.
Click to expand...
Click to collapse
I'm on a P6a but probably similar situations. I was even worse with about 25% success rate and couldn't even add a FP. I signed up for QPR1 Beta 1 yesterday and the FPR is flawless. 100% in the time I have it running (other than missing the sensor half way once). It basically fixes it. FP added as well and it works.
Thanks for the update. I have beta update available but haven't installed it yet. Let me do it over the weekend.
FWIW, I have been using an IQShield screen protector on my Pixel 6 without issue. Close to 100% success rate for fingerprints. I'm really curious what causes some people to experience problems, and others not.
I'm starting to wonder if this is a per-device thing or something. I got mine a few days ago and have been using it constantly, and it hasn't missed a fingerprint read yet.
Out of curiosity, do y'all have dry skin or something? I wonder if it has anything to do with how well your fingertip flattens against the glass.
Well, after installing the latest beta QPR 1, this issue is resolved.. 100% success rate
Jaitsu said:
I'm starting to wonder if this is a per-device thing or something. I got mine a few days ago and have been using it constantly, and it hasn't missed a fingerprint read yet.
Out of curiosity, do y'all have dry skin or something? I wonder if it has anything to do with how well your fingertip flattens against the glass.
Click to expand...
Click to collapse
No dry skin or other issues coz I've been using onscreen fingerprin from ages but definitely device issue i guess, which is now resolved.
mikerowes69 said:
I have come to the conclusion that Google gave up on the under the screen optical fingerprint reader. Tried with out a screen protector, tried turned on off touch screen sensitivity. Any idea?
Click to expand...
Click to collapse
I took advise on the beta. Opt in. Fingerprint works great. Never ever use the privacy screen protector either. That blocks the fingerprint, and enrollment.
Since the June update, never had any issue with the fingerprint again. Before it was hit and miss.
You guys have the Pixel 6a?
Cheers
The two best tricks I am aware of are:
-Registering the same finger more than once
-Using hand lotion frequently to avoid dry skin

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