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Fingerprint reader getting less sensitive?

I wonder if I am alone on this. I found the fingerprint sensor to be fantastic when I first got the device. It read my print instantly, always worked. Lately I find it takes longer and longer, and often won't give me a successful result, eventually asking for my password.
Anyone else?

ekerbuddyeker said:
I wonder if I am alone on this. I found the fingerprint sensor to be fantastic when I first got the device. It read my print instantly, always worked. Lately I find it takes longer and longer, and often won't give me a successful result, eventually asking for my password.
Anyone else?
Click to expand...
Click to collapse
All good here. Make sure hands are dry.
Sent from my SAMSUNG-SM-N920A

Clean the sensor area with a soft cloth and make sure your finger is clean before scanning. Mine works just as good as ever
Sent from my SM-N920T using Tapatalk

Since I almost always use my right thumb, I've saved 3 scans of the same ... This, on the Note 5 and iPhone 6S, works great everytime!

Kind of but in my case it's just me. As said, make sue your fingers are dry, I find it doesn't work good if my fingers are damp like after I was my hands, shower, etc.
In my case I have to reregister my finger prints often. My thumbs & index fingers get cut up & callused from work often so I have to rescan them often as those fingers get cleaned up & heal. But my middle & ring fingers work all the time when I need to.
Kind of a hassle & there's times when I thought about not using the FP scanner but it so much quicker than the other "secured" unlock methods when it does work as it should.

Mine has been slowing down as well. I am going to re scan my fingerprints and clean the button to see if that helps.

fingerprint unlock is acting up

Day 3 with my S10+ and after two days where the fingerprint sensor worked "reasonably well", today it refused to unlock, no matter in which angle, which one of my 3 registered fingers and no matter how much pressure (or almost no pressure) I applied. Only device restart solved the problem.
And yes, I have all the latest updates (at least the Day One that tmobile released...)
Is anyone else experiencing the same?

gilbnx said:
Day 3 with my S10+ and after two days where the fingerprint sensor worked "reasonably well", today it refused to unlock, no matter in which angle, which one of my 3 registered fingers and no matter how much pressure (or almost no pressure) I applied. Only device restart solved the problem.
And yes, I have all the latest updates (at least the Day One that tmobile released...)
Is anyone else experiencing the same?
Click to expand...
Click to collapse
Mine is acting up as well. When I first got it, it worked great and now I can barely get it to unlock
Edit: forgot to say my wife is also having troubles with fingerprint as well

sparky2029 said:
Mine is acting up as well. When I first got it, it worked great and now I can barely get it to unlock
Edit: forgot to say my wife is also having troubles with fingerprint as well
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Click to collapse
Same here. My Note 9 fingerprint reader was far superior. Has anyone tried removing the pre-installed screen protector? I wonder if it would help. I may try it and/or return the phone for a different model. Frustrating
Sent from my SM-G975U using Tapatalk

Also, have you gotten the FP reader update yet? I know unlocked AT&T models got it last night. Definitely helps.

mine working fine stock screen protector all updates done. received @6 March and its exynos indian variant S10+ G975F
Sent from my SM-G975F

Working fine here. Have exynos version. It initially didn't work for one of my thumb. I deleted it and again register it using every angle. Its working fine after that. Maybe Samsung released it too early without testing much.
Sent from my SM-G973F using Tapatalk

Received my galaxy s10 on March 6th. I was super excited but my excitement fizzled down after testing fingerprint scanner. That thing just would not work. It worked like 20 percent of the time. Some times I would try 5 times in a row and it would fall all the time. I had registered two thumbs twice but that didn't help. I went through a lot of threads on XDA and other forums and gathered all the suggestions. Figured out some of the things that worked for me.
Here is what you need to do to make it at least 80-90 percent reliable.
1. Upgrade to ASBA version of the firmware. I am not sure which region you are from but Samsung just released a firmware update which was about 440 MB. This should already help a ton.
2. After you upgrade, go to settings and search for "touch sensitivity". Go to the setting and turn it on. This will increase touch sensitivity of the display. It may use a bit more battery but I have not noticed any difference.
3. Now remove all your fingerprints. Click add finger. This time, when scanning finger do following.
A. Start with the middle of your thumb. Not the edge of the thumb. The part that is about half cm inside. Press that portion and don't do much of a sideway motion till you reach about 80 percent. Now use the edge of the thumb and try to move the edge a bit to reach 100 percent.
B. Add the same finger again. This time start with edge and try to get to 80 percent without much motion. Then use middle of thumb to reach 100 percent.
C. Do the same for other thumb. Also don't register your thumb in vertical position. Just register the way you would hold a phone and try to scan your thumb. Close to horizontal may be at 5-10 degree.
You may be required to press a bit hard while registering your finger but this is not needed to unlock the phone.
3. Now turn off the screen and try to unlock the device without turning on the screen. I know it is a bit hard. Just go with the feeling and press gently with middle of the thumb where you think the scanner is. Note that this is not capacitive scanner that you just touch and done. Put your thumb with a gentle press and leave it there for may be 1 second.
4. Screen should come on and phone should unlock. If it didn't work then turn off the screen and then tap it once to start always on display. This will show you the scanner on screen. Just gently press and hold for 1 second.
I have noticed that the scanner does not work when the finger is super dry. But I think after the update it has gotten better. I had initiated a return for this device and was planning to just get an iPhone. But after the upgrade I decided to keep it and trade in my galaxy note 8.

This is really worrying me. I don't want the gimmick / novelty instead of reliability

Mine is perfect. Installed the update and removed the screen protector it came with and fitted an aftermarket one my local phone shop sold. I get a failed attempt maybe 2 times a day because I haven't had my finger on the right spot

Initially I had the same issue , things I have done which resolved the issue
1 Most important, update the software version. Recent version has fingerprint issue fix.
2 Enable touch sensitivity from settings
3 Add same finger twice , i prefer to add my thumb finger in horizontal position same way you hold your phone

The only trick people miss out is they do not cover the entire sensor while unlocking...just a small adjustment and the fps is as fast and reliable as any in the market.
I initially had his problem trying with part of the sensor covered and i thought it was horrible.
Infact if you cover the sensor wholly you dont need the touch sensitivity turned on as well. I have it mine switched off.
---------- Post added at 05:57 AM ---------- Previous post was at 05:54 AM ----------
Another tip that worked for me is...while registering the fingerprint, hold the phone as you would while you unlock the device and scan the same position of the finger with minimal movement until it flashes 80%.

rtarv321 said:
Same here. My Note 9 fingerprint reader was far superior. Has anyone tried removing the pre-installed screen protector? I wonder if it would help. I may try it and/or return the phone for a different model. Frustrating
Sent from my SM-G975U using Tapatalk
Click to expand...
Click to collapse
I took that crappy screen protector off the second it came out of the box. Only had it 24 hours and it's working so far, but time will tell...

Fingerprint sensor gone
Hi, I'm new here
After I restore factory default of my S10, because it was consuming battery too fast, the fingerprint sensor stop work.
At the samsung's members app I did the interactive check of the sensor and said it is ok.
The phone and apps are update.
I try everything to restore the sensor but had no success. Does anybody knows what could be, and if it is a software problem and how to restore?
Thank you

Can anyone get the fingerprint scanner to work most of the time?

The fingerprint scanner on the Nokia 9 is terrible! Seems to only read it 20% of the time. I use face unlock sometimes which is nice but I can't always hold phone up to face. Tempted to just use smart lock with my android wear watch but there goes my security. May end up trying to add fingerprints again for a 3rd time...

Mine almost always works, but I have to apply some pressure to it. It's not like most other in-display readers that work with just resting your finger on the screen.
I have each thumb trained twice on it.
It fails completely with a glass screen protector (at least for me).

Worst scanner. Works 50 percent or less and with multiple scans of same fingerprint. Utterly useless.Ar least the Galaxy S10 plus was fixed with updates and my success rate is 90% + on that phone.
Sent from my Nokia 9 using Tapatalk

It's a painful fingerprint scanner, but I've found a way to make it reliable. Not necessarily convenient, but reliable..
Before scanning, I lick my thumb of index finger lightly, then run them together leaving them just slightly damp (just enough so they don't slide smoothly across the phone screen), then touch firmly, but certainly not hard, on the sensor patch.
Works almost first time every time. I also used this same method when training the prints.

stiebs said:
It's a painful fingerprint scanner, but I've found a way to make it reliable. Not necessarily convenient, but reliable..
Before scanning, I lick my thumb of index finger lightly, then run them together leaving them just slightly damp (just enough so they don't slide smoothly across the phone screen), then touch firmly, but certainly not hard, on the sensor patch.
Works almost first time every time. I also used this same method when training the prints.
Click to expand...
Click to collapse
Do you know where that thumb has been since the last time you licked it??? :silly: :silly: :laugh: :laugh:

I received my phone yesterday. My fingerprint scanner seems to work just fine. There are a couple times where it did take a couple tries, but it's been nothing like I've been reading. I'm perfectly content with it. I'll also add that it's been working just as well for me with a plastic screen protector on it.

You guys never had a xiaomi mi 5s. If so, you would not complain about fingerprint scanner ?

I've had about a 75% success rate with the fingerprint scanner. I set it up in a dark room and registered both thumbs and index fingers. There are times when it won't read my fingerprint at all, which seems to be software related. Other times, it will say not recognized. In those cases, I've tried to place my hand over my phone as if I'm covering my PIN at the ATM, creating a bit of a shadow or darkness over the fingerprint area of the screen and then trying it, which seems to work a lot more often. Covering it with the other hand might be a fluke, but I am able to repeat the results again and again.

Edit: I deleted my post, because it was not repeatable. Whatever the software issue is, its too intermittent to isolate through physical means alone. Someone with programming knowledge though should be able to see what might be causing the problem and provide some insight on a workaround until then.
Right now for me, it seems to work when its being charged and battery saver seems to affect its success rate.

for me it depends on the situation, sometimes it doesn't work at all. Things like temp etc seems to be influencing the succes rate. my xz3 has a reader at the back and it doesn't work sometimes as well. they are equal in reliability. But if you are used to a Huawei (like the mate 9) it is terrible. I really had to adjust when I got the XZ3 (coming from a mate 9).

I received mine this morning and it performed a system update out of the box.
I put a glass screen protector on the phone straight away and I've had some success with using the fingerprint reader, although not so much that I would like to use it all the time.
These are my observations so far,
- The 'press harder' message is deceptive. I have never got it to work by pressing harder when it tells me to press harder in a spot where my thumb/finger already is. Instead if I use that as a cue to re-position my thumb/finger then I have much more success. When it works, I have never had to press hard at all.
- It doesn't like my thumb very much. It takes some time to find the right position with my thumb, where as my forefinger is fine.
Update: 16:14
I've been persisting with it and have found the right amount of pressure to make it work more consistently. The message on the screen says press a little harder, and pressing it to the point where it flattens your skin out against the screen makes the chance of success better.

Moseman, i did everything you did, unfortunately its a software issue. You are right about the 'press harder' message, its not true. You don't need to press hard at all to get it to work, which i have been able to test successfully. The issue is not about pressure, its about placement. You must place your finger in the exact position that you placed it when you did the first half of the enrollment. Interestingly, i've noticed that apps that use the finger print reader as part of their login, seem to work much better. Such as ADP app or Bank apps.
You will notice that it probably works better while on charger, and works terrible with battery saver on. I tried many ways to find a workaround to get it to work consistently, but eventually it goes back to working 10% of the time. I believe they will create a fix here soon.
I've heard the face scanner login works much better. GL!

I got a good working scan by holding the phone in landscape mode while learning the scan. Might be coincidence , but i figured since the scanner is the shape of a flat rectangle it might cover more of my finger that way. (in normal use i just unlock in portrait mode, i just did the landscape thing to learn the fingerprint)

Interesting. I will try your method and see what i get. Will post an update later. Thanks Bk227865.
*Update: The method does appear to be working somewhat better. I will have to keep testing. Thanks.
*Update2: I don't know why im obsessed with getting this working. But BK you gave me an idea.
So after trying your method, i wondered if enrollment was the issue. Perhaps i wasn't doing it right, and maybe someone else did do it right, so let me know if you did the following.
I deleted all enrollments and tried again, this time with battery saver off (just to rule anything out related to that). I also made sure that my finger placement was exactly as described in the training photo. Originally and before, i had placed the edge of my fingerprints to the edge of the scanner, but actually it wants you to place the middle part on the scanner.
So when i re-enrolled using the exact finger placement the picture showed, it didn't work 100% of the time, but i do get somewhat better overall success with different finger placements.
Anyone willing to test this out?

Sliksta said:
Interesting. I will try your method and see what i get. Will post an update later. Thanks Bk227865.
*Update: The method does appear to be working somewhat better. I will have to keep testing. Thanks.
*Update2: I don't know why im obsessed with getting this working. But BK you gave me an idea.
So after trying your method, i wondered if enrollment was the issue. Perhaps i wasn't doing it right, and maybe someone else did do it right, so let me know if you did the following.
I deleted all enrollments and tried again, this time with battery saver off (just to rule anything out related to that). I also made sure that my finger placement was exactly as described in the training photo. Originally and before, i had placed the edge of my fingerprints to the edge of the scanner, but actually it wants you to place the middle part on the scanner.
So when i re-enrolled using the exact finger placement the picture showed, it didn't work 100% of the time, but i do get somewhat better overall success with different finger placements.
Anyone willing to test this out?
Click to expand...
Click to collapse
I can vouch for this, great discovery, Sliksta! :good:
UPDATE:
After further experimenting, it seems like the results are only slightly better and this is not a permanent solution.

Wow. Really improved! Almost 8/10 now

The way I did it was placing my thumb in different angles from the beginning. Don't have a lot of troubles with it. Some times the light just doesn't switch on. Direct sunlight doesn't help its accuracy. Wet fingers doesn't help as well. But I would say mostly it works

Thanks all and Chaosdark for testing. I still believe that battery saver somehow effects the consistency of its accuracy. I would say it works more often than not with battery saver off. This might be the inconsistency you are experiencing. Can you/anyone confirm it works better w/ battery saver off?

Today I think I've found something interesting, if you go to verification option in the fingerprint section under security and touch the FP scanner to verify which fingerprint enrollment belongs to which finger, I have found that it detects and identifies the fingerprints enrolled easily and quickly and doesn't ask you to press harder as often as on lockscreen ( needs more testing from other users).
This results makes me hopeful that a software fix is possible and in the making according to Nokia CEO how vaguely suggested there will be a fix in an upcoming update.
What do you guys think?

stiebs said:
It's a painful fingerprint scanner, but I've found a way to make it reliable. Not necessarily convenient, but reliable..
Before scanning, I lick my thumb of index finger lightly, then run them together leaving them just slightly damp (just enough so they don't slide smoothly across the phone screen), then touch firmly, but certainly not hard, on the sensor patch.
Works almost first time every time. I also used this same method when training the prints.
Click to expand...
Click to collapse
This works 100% without pressing harder
Incredible

more than three fingerprints?

hey!
I was wondering if there's a way to register more than three fingerprints? I think I've seen someone with 5 registered on YouTube but I can't find the video anymore.
Literally only need ONE more to comfortably unlock my phone with both hands while it's sitting on a table.
why do they only allow three? that's such an odd number...

You can register multiple fingerprints per fingerprint just by changing fingers while registering a fingerprint. My 3 fingerprints are taken up with one each for my thumbs and the third one with both forefingers. Have a good one!

AzraelsKiss said:
You can register multiple fingerprints per fingerprint just by changing fingers while registering a fingerprint. My 3 fingerprints are taken up with one each for my thumbs and the third one with both forefingers. Have a good one!
Click to expand...
Click to collapse
While that's a nice little work around since samsung oddly enough didn't include the option to add up to 5 like they do with the s10 & all other s20 series. Hopefully it'll come with an update.

Lifehack regarding to how to make fingerprint sensor faster:
1. Remove all fingerprints
2. Set 60 Hz display refresh rate
3. Add fingerprints
4. Set back 120 Hz display refresh rate
Now sensor works much faster. At least for me.

Question Finger print and lock screen

The success rate hit of the finger print scanner is much lower with the lock screen than with the screen saver. While with the screen saver it is effective and quick , it more often than not that with the lockscreen the fingerprint identification is rejected.
Any ideas? solutions? I already deleted and printed new finger print few times already.

I find that it's total garbage. It works about 10% of the time and I've redone adding my prints over and over. I've tried most of the steps others have and find that it doesn't help. Someone said to do a factory reset and no I'm not going to do that. I just don't use it anymore and will probably get rid of this phone soon. I want to use SD cards again and have more memory as 512 is just not enough. The reader on the Note 9 was so much better.

Not sure what you guys are doing or not doing, but my print reads all the time whether screen is on or off. Get use to where the sensor is also make sure you don't have dry hands

No complaints here. Work 99 out of 100 times on both screens

Can't complain either, working perfect here and very fast, too... Btw with stock screen protector, if that matters....

Sonin66 said:
Not sure what you guys are doing or not doing, but my print reads all the time whether screen is on or off. Get use to where the sensor is also make sure you don't have dry hands
Click to expand...
Click to collapse
I am doing all of the above , just when AOD is active the success rate is vey bad , when normal screen saver is on , the success rate is much better.
Tnx

I was having no issues before a screen protector.. now I don't even use it because I can never get my finger print to read.

dnoam said:
I am doing all of the above , just when AOD is active the success rate is vey bad , when normal screen saver is on , the success rate is much better.
Tnx
Click to expand...
Click to collapse
Screensaver, AOD, screen off.. Success is 99/100
Are you using a screen protector/shield?

I have learnt I need to press harder. I used to have a Pixel 2 XL FPR on the back which was really sensitive. Using a phone with FPR under-screen was new for me, you do need to be firmer when pressing your finger down and after training myself for a few days I don't have any issue with unlocking now. I have fitted two S21Ultras (mine and friends)with the White Dome tempered glass and that has not impacted us either.

Sonin66 said:
Not sure what you guys are doing or not doing, but my print reads all the time whether screen is on or off. Get use to where the sensor is also make sure you don't have dry hands
Click to expand...
Click to collapse
It's hard to miss where the sensor is as it's pointed out on the screen when using it. As for dried hands that too seems not to matter.

Folks I'm guessing you think you're being helpful when you say that you're not having a problem with your phone as a response to someone who is have a problem. To me that's like me taking my car to a mechanic and telling them my car isn't working properly and them telling me that their car is working just fine. I worked for many years as a computer consultant at a major university in upstate NY and never once did I respond in this fashion because it's pointless.

But he was wondering if his phone was faulty..you being an analyst should realise that if most of the replies are positive that in itself helps him

Tony966 said:
Folks I'm guessing you think you're being helpful when you say that you're not having a problem with your phone as a response to someone who is have a problem. To me that's like me taking my car to a mechanic and telling them my car isn't working properly and them telling me that their car is working just fine. I worked for many years as a computer consultant at a major university in upstate NY and never once did I respond in this fashion because it's pointless.
Click to expand...
Click to collapse
Im guessing you think we can solve a problem thats either a defect or user error.
oh wait. guess we can just close the thread then.

joancolmenares said:
Screensaver, AOD, screen off.. Success is 99/100
Are you using a screen protector/shield?
Click to expand...
Click to collapse
Hi.
No , as it was unpacked from the box.

This has started to be an issue on my a.o.d.
Was ok but I changed the icon and it seems to be hit and miss now.
I just double tap the screen and bypass it

mattlcfc said:
This has started to be an issue on my a.o.d.
Was ok but I changed the icon and it seems to be hit and miss now.
I just double tap the screen and bypass it
Click to expand...
Click to collapse
My Icons also changed , so that might be the issue.

Problems solved.The cause of very low hit rate of the fingerprint scanner on AOD in lock screen was new icons i dowloaded from Galaxy store.When i installed the original , no more missed prints

No complaints here. But it completely works