Fingerprint sensor faulty (no case)? - LG V10 Q&A, Help & Troubleshooting

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

Related

Fingerprint reader word of advice.

If youre struggling with the in-display fingerprint reader then read this. I was having a terrible time with mine, reprogramming it over and over trying to get it to work consistently. Well i finally figured out what it is.
You need to very lightly rest your finger on the reader and it will work every time. Dont press hard at all or it wont read your finger correctly.
:good:
Even while using the light touch approach, it still wouldn't unlock just now when i woke up. Seems it need a software update or something.
I've got a screen protector and to me it seems the opposite. When resting your finger gently, the sensor does not recognize the print, but pressing down does work 9/10 times for me.
Not sure what's going on here...
My thumb works 10% of the time...my index 90%
Miss my HTC U11's home button fingerprint reader...
I've doubled up on the finger prints and it works slightly faster
Sent from my LM-G850 using Tapatalk
I'm not really having any issues. It's not 100% accurate but is actually better than my Galaxy s9 one was
starshooter10 said:
My thumb works 10% of the time...my index 90%
Miss my HTC U11's home button fingerprint reader...
Click to expand...
Click to collapse
I have the same result. I find if my finger is perfectly straight and lightly pressing the screen seems to work best.
inzimam said:
I'm not really having any issues. It's not 100% accurate but is actually better than my Galaxy s9 one was
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Click to collapse
That is 100% wrong, I have the s9 plus my GF have the s9, never had a issue with either phones, the Lg is on a daily basis. I doubled up on the scan but same thing, the LG G8X finger print sensor is crap among other things.
sonspot said:
That is 100% wrong, I have the s9 plus my GF have the s9, never had a issue with either phones, the Lg is on a daily basis. I doubled up on the scan but same thing, the LG G8X finger print sensor is crap among other things.
Click to expand...
Click to collapse
It works perfectly if you do exactly what's stated in the OP.
seh6183 said:
It works perfectly if you do exactly what's stated in the OP.
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Click to collapse
You're joking right, this is my 6th phone with a finger print sensor, first with a sensor in the screen but that does not change anything. The Lg finger print sensor sucks, I'm not sure what you're trying to defend, it is what it is and yes I tried what the OP the first day I got the phone, including adding the same finger 4 times but it was no better than 3x, compared to the S9's the LG G8X sensor is trash.
sonspot said:
You're joking right, this is my 6th phone with a finger print sensor, first with a sensor in the screen but that does not change anything. The Lg finger print sensor sucks, I'm not sure what you're trying to defend, it is what it is and yes I tried what the OP the first day I got the phone, including adding the same finger 4 times but it was no better than 3x, compared to the S9's the LG G8X sensor is trash.
Click to expand...
Click to collapse
Sorry you're doing it wrong.
seh6183 said:
Sorry you're doing it wrong.
Click to expand...
Click to collapse
Goodbye troll, have a nice day.
Gonna have to agree that the fingerprint sensor on this works better than my Note 10+. It isn't quite Note 9 accurate but after factory reset and sensor test, it works extremely well for me.
Try this:
Program the same finger more than once..
Mine works instantly 100% of the time even at 1% battery typing this now. It doesn't matter what angle or position. Program each finger the way you hold/want to unlock the phone.
And turn up the screen sensitivity esp if using a screen protector.
I came from a v30+ and thought i'd miss the button on the back. Just takes some getting used to.
Sent from my LM-G850 using Tapatalk

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.
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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 - is there a way to make it better on Asus ZenFone 8 flip

What's interesting it recognises one finger well. With finger on the other hand it lags all the time. I re-added this finger three times and I gave up.
Fingerprint on this phone is the bottle neck of the UI. There was another complaint about the fingerprint from a user on another thread.
Maybe it was me.
I have not figured out a solution to this, but I get better at placing the finger in a way the sensor recognizes it more often. Still not all the time.
My wife's zf8 (non-flip) has the same issue, too.
Try moisturizer.
Did you try it?
My theory is sanitizers makes hands so dry that fingerprint look flat giving low definition.
Moisturiser makes the skin perk up a little. If you don't want to moisturiser. Just very lightly lick your thumb ( or whichever finger you have to unlock ) you don't want it wet you just want it slightly wet you'll unlock really fast.
If it doesn't work re-register the print with moistened hands. Also drink more water.
Do tell if this worked.
IronSingh said:
Did you try it?
My theory is sanitizers makes hands so dry that fingerprint look flat giving low definition.
Moisturiser makes the skin perk up a little. If you don't want to moisturiser. Just very lightly lick your thumb ( or whichever finger you have to unlock ) you don't want it wet you just want it slightly wet you'll unlock really fast.
If it doesn't work re-register the print with moistened hands. Also drink more water.
Do tell if this worked.
Click to expand...
Click to collapse
Actually works. Haha.
Glad it helped
so much lol.
actually I was not planning to lick my thumb every time the phone needs an unlock ... and since my thumbs and fingers work perefectly with other phones, tablets and PC-sensors, it must be the ZF8 (flip).
it bugged me (and my wife, too) so much that we sold the zenfones again and happily returned to Oneplus7 and Oneplus6T. Some new phones will turn up some time, maybe I can get a deal on oneplus9 phones...but the asus-experience I have to say was rather bad.
elchmartin said:
so much lol.
actually I was not planning to lick my thumb every time the phone needs an unlock ... and since my thumbs and fingers work perefectly with other phones, tablets and PC-sensors, it must be the ZF8 (flip).
it bugged me (and my wife, too) so much that we sold the zenfones again and happily returned to Oneplus7 and Oneplus6T. Some new phones will turn up some time, maybe I can get a deal on oneplus9 phones...but the asus-experience I have to say was rather bad.
Click to expand...
Click to collapse
I think the Oneplus 7 Pro is the last good Oneplus they made the 8 and 9 I couldn't like no matter what.
I like to mod and they seem to be mod unfriendly. I really like the ZF7 Pro, I love everything about it.
I am not a fan of Optical Fingerprint scanners. I wish they make the Zenfone 9 Flip with a capacitive scanner, like in ZF7 and Oneplus 6
elchmartin said:
so much lol.
actually I was not planning to lick my thumb every time the phone needs an unlock ... and since my thumbs and fingers work perefectly with other phones, tablets and PC-sensors, it must be the ZF8 (flip).
it bugged me (and my wife, too) so much that we sold the zenfones again and happily returned to Oneplus7 and Oneplus6T. Some new phones will turn up some time, maybe I can get a deal on oneplus9 phones...but the asus-experience I have to say was rather bad.
Click to expand...
Click to collapse
Actually i found a solution for fingerprint problem, go settings then advanced and turn on glove mode… my fingerprint problem solved
Patrixlch said:
Actually i found a solution for fingerprint problem, go settings then advanced and turn on glove mode… my fingerprint problem solved
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Click to collapse
Actually solution is very easy.i think most of user just don't know do it properly. You may press a bit while to setup a finger print.once setup to unlock you don't need to press your finger.just put/touch a bit your finger to the spot and scanner will scan you finger easily. Can do repeatly and then you realise is actually easy to unlock this phone.
I added a second finger which is the same finger and it now works much better.

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 sensor - can this be THAT simple?

Hi all,
As many other Pixel 6 users I was struggling with FP sensor in inconsistency - failed unlocks mostly. I did worked a bit better without screen protector, but my personal experience tells me I need one, so the struggle continued.
Today I've made yet another attempt to re-scan my finger hoping to improve the experience and then I've noticed that the sensor seems to work way better if I place my finger 2-3 mm below what I would call centered over the icon on the screen.
No I wonder - is is just me + wishful thinking or maybe there is slight misaligned between the icon on the screen an actual position of the scanner. Any thoughts?
a.
Weirdly, it works on the bottom half of the FPS scanner icon, and not the top one, so it might be that the sensor is a little bellow the indicator
So it's not just me and my pixel. Nice
You should have posted in reddit instead
You might be right, but I don't use Reddit. Hope whoever might want to try this he would eventually find this thread.
It works well for me, you need to install certified only screen proyectors
Agreed, the FP issue is negligible without screen protector, it a slow yet solid scanner.
I've checked Google's list of certified screen protectors and pretty much all of these get some negative reviews from users. Not to mention all either not available or out of stock in EU.
Currently I'm using Spigen glass, not on the Google's list, but works fairly well.
As I wrote in my first post moving the finger slightly lower on the screen seems to help a lot.
Interesting observation about finger placement and sensor alignment. I'll definitely experiment with that.
I was cussing the fingerprint sensor up until March. It couldn't even enroll let alone unlock. Long, tedious story shortened... Since March after clean flashing the factory image the sensor improved a lot along with solving other screen related problems. My best enrollment results were with warm and clammy fingers from gripping a mug of hot coffee. As it is now only one finger out of four consistently unlocks, but that could just be me. Or placement. With that one finger I'm getting acceptable results with a cheap 9H screen protector (3-pack for $9) and default screen sensitivity. A screen protector 1-pack in the $25-40 range aint gonna happen.
ender2180 said:
Agreed, the FP issue is negligible without screen protector, it a slow yet solid scanner.
I've checked Google's list of certified screen protectors and pretty much all of these get some negative reviews from users. Not to mention all either not available or out of stock in EU.
Currently I'm using Spigen glass, not on the Google's list, but works fairly well.
As I wrote in my first post moving the finger slightly lower on the screen seems to help a lot.
Click to expand...
Click to collapse
I'm using my P6 without screen protector, and it is very slow and inaccurate for me. For reference, I'm coming from S21 and it's instantaneous and very precise.
What did it for me was that i ignored the instructions completely and did my own routine. for example, i never rolled my finger over the screen. instead i did both sides of the fingerprint just pressing multiple times and on slightly different angles.
Hamid Chikh said:
I'm using my P6 without screen protector, and it is very slow and inaccurate for me. For reference, I'm coming from S21 and it's instantaneous and very precise.
Click to expand...
Click to collapse
Different sensor tech
DMart9406 said:
Different sensor tech
Click to expand...
Click to collapse
I know it's a different technology, but it's been around for a while now, since S10 (2019) and it only got better with time, so i can't figure out how and why did google skip it for its supposed "the google phone flagship"
Hamid Chikh said:
I know it's a different technology, but it's been around for a while now, since S10 (2019) and it only got better with time, so i can't figure out how and why did google skip it for its supposed "the google phone flagship"
Click to expand...
Click to collapse
I agree, it is a bummer. For last few years I was mostly using IOS and got used to authentication being seamless. My last Android was Pixel 2 and I admit - I've missed the experience. FP sensor is giving me some hard time, but I'm super happy with my P6. It will stay with me for longer no doubt.
I did some more testing, retraining etc. and I feel my initial thoughts are not accurate. The reason why I believed the scanner is positioned slightly below the icon on the screen was most probably due to the part of my finger that got scanned the best.
It might be due to the security reasons Google mentioned on the blog, it might also be a smaller and less accurate scanner used in P6/P6P. The outcome stays the same - you need to be very precise while registering your finger print and train your muscle memory to place your finger accurately on the screen.
The scanner on the back of the phone like to the one in Pixel 5 is not only using different tech, but it also makes obvious to a user where to put the finger. Pixel 6 makes it a bit harder, but that's about it.
With a deliberate finger positioning and some practice you can be pretty happy with FP scanner on Pixel 6.
Hi. I got a solution from this xda forum (sorry I don't have the link) but it basically resolved my fingerprint hit-miss issue. Ideally it involved:
1. Remove all the fingerprint images 8 previously made and starting afresh.
2. After removing, before registering new finger prints, first rub the thumb / finger I wanted to register on my forehead so that it collects a good amount of face-oil. Apparently the fingerprint registers well when registering the finger with an oily finger (I refer to the face oil...I have no evidence that other oils work).
3. After a good rub of the finger on your face you now go about registering the finger(s). Suggestion is to register each finger at least 2 times.
When you try using the fingerprint scanner it will work well. You may have to press in a bit (not so much) but this works pretty well.

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