Fingerprint Reader

recDNA

Well-known member
Jun 29, 2011
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Is there any way to make fingerprint reader vibrate when fingerprint is accepted?

Fingerprint reader is weird on S22U. It hates my thumb. For some reason it reads my index finger successfully much more often. The old reader device on my Note 9 was far better. It never missed.
 
I can't speak to vibration but did you try increasing the sensitivity of the FPS (for screen protectors)? My fingerprint sensor works perfectly.


Is there any way to make fingerprint reader vibrate when fingerprint is accepted?

Fingerprint reader is weird on S22U. It hates my thumb. For some reason it reads my index finger successfully much more often. The old reader device on my Note 9 was far better. It never missed.
 
Did you try re-registering your thumb print? For me it's working great whichever finger I use.
 
Did you set it up holding the phone naturally (thr way you will when you press it during use)? That may be obvious to many, but I remember the light bulb when I first heard that with my last phone and it does help with accuracy.

Another trick is to register the same finger twice if you're having issues.

Touch wood, I'm finding this sensor improved vs my N20U so far. It has been really fast and accurate, I thought the N20U was good but this has been seamless. Hope you can get the thumb sorted!
 
The fingerprint scanner is amazing. Very fast and responsive. Worked flawlessly even with the fingerprint display off on the AOD.
 
Did you set it up holding the phone naturally (thr way you will when you press it during use)? That may be obvious to many, but I remember the light bulb when I first heard that with my last phone and it does help with accuracy.

Another trick is to register the same finger twice if you're having issues.

Touch wood, I'm finding this sensor improved vs my N20U so far. It has been really fast and accurate, I thought the N20U was good but this has been seamless. Hope you can get the thumb sorted!
Great tip on scanning the finger I use twice. I always and only use my right thumb so did it again and now getting more consistent results. Still not batting 100% as I would on the back side scanning pad on my Note 9.
 
Great tip on scanning the finger I use twice. I always and only use my right thumb so did it again and now getting more consistent results. Still not batting 100% as I would on the back side scanning pad on my Note 9.

The Note 9 scanner was not ultrasonic, as is the under display scanners, so it wasn't as secure. Your experience is interesting because I find the scanner in the S22 Ultra to be the best under disaply ultrasonic scanner I've experienced. It's fast and I would say works over 97% on the first try - the other 3% most because my finger wasn't totally on the scanner or something. This is without scanning the same finger twice, either (like I did in my Note 10 and 20 for example) and with my Whitestone Dome on. I wonder if it's the make up of our prints that cause some folks to have more issues than others.
 
The Note 9 scanner was not ultrasonic, as is the under display scanners, so it wasn't as secure. Your experience is interesting because I find the scanner in the S22 Ultra to be the best under disaply ultrasonic scanner I've experienced. It's fast and I would say works over 97% on the first try - the other 3% most because my finger wasn't totally on the scanner or something. This is without scanning the same finger twice, either (like I did in my Note 10 and 20 for example) and with my Whitestone Dome on. I wonder if it's the make up of our prints that cause some folks to have more issues than others.
I'm definitely having more success with the FPS on my S22 Ultra than I did on my S10+.
 
Good suggestion above, I will have to try registering the same finger twice to see if it helps. The scanner is definitely hit or miss for me. I have put both thumbs and an index finger and sometimes they work and sometimes they don't. The reader on the back of my old Pixel 2XL was 100% flawless. The face reader on my S22 is very good though.
 
Update: I registered my right thumb twice, once dry and once after soaking it for a few seconds under water. It seems to help a bit. Different than my Pixel 2, this reader is quite particular for me. I work with my hands outside quite a lot so at any given moment my fingers can be dry, wet, scratched, etc. But even when I am indoors or first thing in the morning, it can take several tries before it works. The most common error for it to say is "Cover the entire fingerprint sensor" or "Press Harder". I have increased touch sensitivity turned on. The cover error is an odd one as I have big hands and fingers and I am careful to be sure I am right on the reader. Anyway, fortunately the face recognition seems almost perfect on this phone so I generally use that unless I need a fingerprint unlock like to use Google Pay.

Interestingly, I put on a Whitestone Dome screen protector and that did not make things any worse at all. No better of course either.

As said, I am glad the face recognition works well at least. I just wish I could put more than two faces in. I find it best with two inputted, but I have to make one of them with a hat. If I just put two hatless faces in, it works flawlessly every time but will not open if I have on a hat. If I put in only one hatless face and one with a hat, then it is not always 100% on the first try. I think it would be perfect with four entries just like the fingerprint has.
 
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Scanner doesn't work as well on my phone with Zagg Fusion screen protector on my phone.
 
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Same here. I returned ZAGG Fusion Defense screen protector because the FPS was unreliable, fingerprint magnet and peeling up on the edges.

Now the FPS works flawlessly.
 
FPS works much better on the S22 than Note 10+. I have the Ilumishield Aqua screen protector and it still works flawlessly. Facial recognition is ok, still better on iPhone.
 
The FPS scanner got a major upgrade on the S21 phones and it is the exact same unit used on the S22 lineup. It is a Qualcomm 3D Sonic Sensor Gen 2. Qualcomm claims 77% more reading area, 1.7x more data captured, and a 50% speed increase. You can read more about it here: https://www.qualcomm.com/news/onq/2021/01/11/introducing-qualcomm-3d-sonic-sensor-gen-2

Anyway, coming from a S21U and S22U, I have literally never had it fail, not even once that I can recall, in over a year using the same unit across two different phones. It is also instant fast - you can turn off the unlock animation and the moment you touch it, you're already unlocked. Also, if you have good "aim" with your thumb, you can simply place it on the black screen and the phone is unlocked and in your home screen before it even has a chance to "wake up".

Make sure you are re-training it after you install a screen protector, and if you have a particular finger that is giving you trouble, train it twice. Also, make sure when you're training it that your hands are clean and you're actually holding the phone in a way that you would when you unlock it. Some screen protectors will cause problems, and that is just the way it is - not a fault of the phone in that case. Tempered glass protectors in particular seem to cause problems with the FPS, but not all of them.

I don't use face recognition because to my knowledge it just uses a 2D image from the camera rather than a depth map (which means you can fool it with a photo). Also, I have to wear a mask a lot and face ID has been nothing but an inconvenience since 2020 - it is my #1 complaint about my iPhone, I hate typing in passwords literally 100-200 times a day for the most basic of tasks like unlocking a phone. Apple is way behind the times on the hardware side in pretty much every area except synthetic CPU benchmarks.
 
you can turn off the unlock animation and the moment you touch it, you're already unlocked. Also, if you have good "aim" with your thumb, you can simply place it on the black screen and the phone is unlocked and in your home screen before it even has a chance to "wake up".

Thanks for this! I did not know and had not paid attention to that. I turned off animation and my FPS is definitely seems to be working better. I wonder why that has any impact at all?
 
Thanks for this! I did not know and had not paid attention to that. I turned off animation and my FPS is definitely seems to be working better. I wonder why that has any impact at all?

I can't imagine how that would affect accuracy, but if Samsung wants you to watch a fancy animation, I guess that takes time to show you. Regardless I'm glad it's working better for you.

If you are a fan of that, go into developer options (under "about phone" tap "build number" multiple times until it says it's unlocked, then you will find "developer options" in your normal settings menu) and set every animation speed to 0.5X (default is 1.0X). It makes any Android phone feel much snappier because every little bit of time you spend waiting for animations and transitions within apps and the OS is sped up by 50%. I do this on all my Android phones regardless of brand and it makes them feel so quick.
 
The fingerprint scanner is amazing. Very fast and responsive. Worked flawlessly even with the fingerprint display off on the AOD.

Yep my thoughts too. Especially when compared to other fingerprint scanners on other phones, the S22 scanners are amazing. Incredibly fast and accurate for me.
 
Same here. I returned ZAGG Fusion Defense screen protector because the FPS was unreliable, fingerprint magnet and peeling up on the edges.

Now the FPS works flawlessly.
Yes it really does attract fingerprints. They're all over my screen even though I wash it every morning.

Still I won't return mine because I need something to protect the screen when (not if) I drop it.

I may go back to face recognition because it seems the fingerprint scanner cannot be trusted to consistently get it right . Typically it is wrong almost every time on the first scan then opens on the second try. I really have to push hard. I am not going to lick my thumb first!
 
My FPR never works first try. Usually says to cover entire fingerprint sensor. I have to move thumb around several times for it to work. I've registered the thumb twice. It must be my screen protector. Are some protectors better for using the FPR?
 

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