Database Users

FP scanner replacement..

My FP scanner stopped working recently...figured it was software related so i went ahead and wiped the stats..restarted, installed new custom rom...no cigar.
I have dropped my phone in water so im assuming its water damage.
Anyone got any ideas where i can get a replacement and get it fixed?
Thanks!

Same here, I can't find a solution at all. Flashing new roms dont fix it neither does wiping data
Sent from my MB860 using XDA App

jackdonogy said:
My FP scanner stopped working recently...figured it was software related so i went ahead and wiped the stats..restarted, installed new custom rom...no cigar.
I have dropped my phone in water so im assuming its water damage.
Anyone got any ideas where i can get a replacement and get it fixed?
Thanks!
Click to expand...
Click to collapse
If water has affected the hardware, i doubt that you can ever fix this problem( if i were you, i would dismantle the phone and try and clean-and completely dry any water off it- the FP scanner and see if it works....but i would not advise you to do such a thing if you are not comfortable with it).
If, however it's a software issue, Flashing a new ROM would have fixed this problem.
The good news here though is that you can use the traditional lock, which many Atrix users prefer over the FP scanner.

another option is too look for a bricked phone or one with a cracked screen for parts to replace the FP scanner.

funny thing about water damage....i dropped it in may...literally 3 months ago..and now its causing an issue...guess i have to live with no FP scanner..

cellulardr.com
Just got a replacement from them for about $30 with the back as well for good measure. Friend from the US shipped it up here to save.
my old one actually does work haven't determined why my sensor gives me issues (off balance so it records swipes that aren't happening - not sure what the cause is cause it just goes away after some adjustment). the point being you are in toronto so you can have mine for $10 and i would install it as well.

y2whisper said:
cellulardr.com
Just got a replacement from them for about $30 with the back as well for good measure. Friend from the US shipped it up here to save.
my old one actually does work haven't determined why my sensor gives me issues (off balance so it records swipes that aren't happening - not sure what the cause is cause it just goes away after some adjustment). the point being you are in toronto so you can have mine for $10 and i would install it as well.
Click to expand...
Click to collapse
so i need these two things:
http://www.cellulardr.com/proddetail.php?prod=01006796003
http://www.cellulardr.com/proddetail.php?prod=01006645001
How easy was it to replace the FP scanner?

y2whisper said:
cellulardr.com
Just got a replacement from them for about $30 with the back as well for good measure. Friend from the US shipped it up here to save.
my old one actually does work haven't determined why my sensor gives me issues (off balance so it records swipes that aren't happening - not sure what the cause is cause it just goes away after some adjustment). the point being you are in toronto so you can have mine for $10 and i would install it as well.
Click to expand...
Click to collapse
Great! Let's meet up. I've pm'ed u. Hit me back. Thanks!
Sent from my MB860 using XDA Premium App

andy2na said:
so i need these two things:
http://www.cellulardr.com/proddetail.php?prod=01006796003
http://www.cellulardr.com/proddetail.php?prod=01006645001
How easy was it to replace the FP scanner?
Click to expand...
Click to collapse
you might not need both, but to be safe spend the extra $5. I haven't used the one I bought since it appears to be working fine.

This phone is very easy to torn apart.

yeah its actually one of the easiest out there
http://www.ifixit.com/Teardown/Motorola-Atrix-4G-Teardown/4964/1
you won't have to go beyond step 6 for this repair.

There is an onlilne outfit that supplies replacement parts for the Atrix, but doing so is not for the faint of heart.. The site is located at www.repairsuniverse.com
I considered going through them to replace my glass when it lost a battle with gravity and a concrete slab, and noticed at the time, they have just about any part that you could need, including the board that contains the FP scanner.

y2whisper said:
you might not need both, but to be safe spend the extra $5. I haven't used the one I bought since it appears to be working fine.
Click to expand...
Click to collapse
The sticker like cover of my scanner is peeling away. Is this the same as the cover that they have for sale?

you mean the black put your finger against? the cover is actually underneath that.

borgib said:
The sticker like cover of my scanner is peeling away. Is this the same as the cover that they have for sale?
Click to expand...
Click to collapse
y2whisper said:
you mean the black put your finger against? the cover is actually underneath that.
Click to expand...
Click to collapse
I bought it before I saw your post. You are right. The cover actually rests underneath the FP scanner itself.
In stead of buying the entire scanner, what I did was super glue the sticker back down. It's not exactly pretty, but the scanner still works flawlessly.

Broken OIS?

Since yesterday my camera makes clinking noises and cannot properly focus anymore. I suspect the OIS mechanism somehow got broken which sounds like I would have to do an RMA, right? Did anyone ever experience something similar?

my fathers samsung s6 camera sometimes has problems with ois. sometimes while video recording the ois goes nuts and the pictures shakes and the camera makes a rattling noise. after a few moments its ok. as it is a mechanical moving part, maybe something gets broken or some kinda dirt gets in the wrong place.
maybe you can slap the device against the palm of your hand a few times, maybe the ois will get loose and can work again as it should.. other then that, yeah, i would go for a rma.

nupi said:
Since yesterday my camera makes clinking noises and cannot properly focus anymore. I suspect the OIS mechanism somehow got broken which sounds like I would have to do an RMA, right? Did anyone ever experience something similar?
Click to expand...
Click to collapse
It's a laughably common problem... Do you have an A2017U? It's not like I did research but all of the devices with broken OIS that I've seen are A2017U's. Maybe they source from a different place, I dunno
The only solution seems to be RMA

No this is a G series. Just tried again, seems to work for now. Will make sure to observe in any case...

nupi said:
Since yesterday my camera makes clinking noises and cannot properly focus anymore. I suspect the OIS mechanism somehow got broken which sounds like I would have to do an RMA, right? Did anyone ever experience something similar?
Click to expand...
Click to collapse
It's the latest B25 update. A factory reset fixed the problem for me. Seems the stacked up previous "dirty flash" updates caused problems over time with the OIS. I thought it was a Hardware Problem too.
Sent from my ZTE A2017U using Tapatalk

I didn't flash B25 or b04 but it did start after trying resurrection remix (after factory reset). Now back to lineage, Maybe I need to wipe data instead of just doing a factory reset?

Like this?
https://goo.gl/photos/yHVB3vtbu52f9oTV7
Does it tend to happen when the device is warm? RMA RMA RMAAAA. Zte was great with my rma experience. I had a similar issue.
Sent from my ZTE Axon 7 using XDA Labs

It seems to be happening again, so unless there is a way to simply turn of OIS I think an RMA will be needed which is annoying mainly because I don't have a spare phone to use

Yeah I'm currently dealing with this issue to. It happens just enough to be annoying. This will be the second RMA I've had on this device but I ain't mad at it. The first was was a headphone jack issue and this is something separate. My first experience with the RMA process was pretty painless.

I have it too, A2017U. When it happens, the camera literally vibrates and doesn't focus at all. The fix is to close and re-open the camera, though sometimes it takes about 5 times to get it back to normal.
Thankfully, it only happens maybe 1 out of 10 times I use the camera in the first place.

DxTcmix said:
It's the latest B25 update. A factory reset fixed the problem for me. Seems the stacked up previous "dirty flash" updates caused problems over time with the OIS. I thought it was a Hardware Problem too.
Sent from my ZTE A2017U using Tapatalk
Click to expand...
Click to collapse
Did this issue return for you? It's interesting that I'm having the same issue, but I'm using a custom rom. Maybe the bootstacks need to be wiped and refreshed.

nolimit78 said:
Did this issue return for you? It's interesting that I'm having the same issue, but I'm using a custom rom. Maybe the bootstacks need to be wiped and refreshed.
Click to expand...
Click to collapse
I am on lineage too, on a A2017G so no B25 anywhere but still wonder if flashing stock might help. Then again would have to do some for an RMA anyway

nupi said:
I am on lineage too, on a A2017G so no B25 anywhere but still wonder if flashing stock might help. Then again would have to do some for an RMA anyway
Click to expand...
Click to collapse
I flashed and returned /everything/ to stock, first time booting up the camera, it jittered like usual. If you have this problem, just set it up for RMA.

I had same issue on RR, LINEAGE and same on CARBON rom/last build/ so I tried STOCK-MB04 for my A2017G and it looks good, mean camera works correctly. Propably it is SW problem.

Also experiencing this issue... but I think it has something to do with heat. This seems to be mostly happening, when I'm out in the sun on hot days. Is this the same for anyone else? I'm running LineageOS.

Definitely not correlated to heat in my case. Will try stock again

nupi said:
Definitely not correlated to heat in my case. Will try stock again
Click to expand...
Click to collapse
Alright would be happy to hear your results

Happens even after flashing B04, perhaps less often but definitely still there.
Well I had to flash b04 in prep for RMA anyhow.
I might even go and buy a new phone but it seems there are only bad options out there...

The only phone that has caught my attention is the Pixel 2. Front facing speakers are a hard thing to get rid of. I'm using an LG G6 and the lack of dual facing speakers is noticeable. I can't wait to see how much the Pixel 2 will premier at so I can laugh at it and continue using the A7.

How does the G6 compare to the axon? I like the flat display but I am less convinced I want to deal with LG software and bootloop risk
Looking at xperia xz which can now be had for little over 300eur but loathe to go to 5.2"...
Thankfully speakers are the least important to me. But I want sane software, decent camera (here the axon is less than optimal even without broken OIS), headphone out and no bent screen crap.

fingerprint reader issue

Hi folks,
Anyone else experiencing issues with the fingerprint reader?
I've set up the maximum if 5 fp, but interestingly all the 5 are the same finger.... And the device won't recognise my finger ad soon as I lock the phone.
Tried with different fingers= same result.....
No matter what I'm doing, clean cache, re-set, etc....
I've already exchanged the phone but the new one is the same....
Any idea how to fix it?

Sounds like your fingers aren't compatible. Is it a common practice to have the same finger registered five times? Only have once perfinger myself and never have an issue unlocking.

My experience is it gets a lot better with time. I did make two entries for my left thumb which helped increase read rate from maybe 2/3 to >9/10. Other fingers read well and got better. In sunlight, in dark, no problem it just works. If your fingerprints are in some way unusual or hard to read it may "just be you.".
Do you have a friend whose finger you can borrow to test things out? Rule out the phone ?
Sent from my ONEPLUS A6013 using Tapatalk

_katho_ said:
Sounds like your fingers aren't compatible. Is it a common practice to have the same finger registered five times? Only have once perfinger myself and never have an issue unlocking.
Click to expand...
Click to collapse
I was really upset about not reading my fingerprints so I tried with the same finger and surprisingly registered again....and again.

Frankenscript said:
My experience is it gets a lot better with time. I did make two entries for my left thumb which helped increase read rate from maybe 2/3 to >9/10. Other fingers read well and got better. In sunlight, in dark, no problem it just works. If your fingerprints are in some way unusual or hard to read it may "just be you.".
Do you have a friend whose finger you can borrow to test things out? Rule out the phone ?
Click to expand...
Click to collapse
Tried with my wife's finger. It reads a little bit better,but the overall successfully unlock by fp is way below the acceptable number (tried around 10 times, unlocked around 3-5)

hunhool said:
Tried with my wife's finger. It reads a little bit better,but the overall successfully unlock by fp is way below the acceptable number (tried around 10 times, unlocked around 3-5)
Click to expand...
Click to collapse
Oh that's awful! I'm consistently >9/10 after a month and half of use. Even early on was probably75%. Only problem I have is right after a shower it doesn't like swollen skin fingers.
As a test I just did 20 unlocks using the various four fingers i defined. Only one fail, and that was left thumb at an angle.
Phone is definitely better than iPhone 6 I have for work (50% rate).
Sent from my ONEPLUS A6013 using Tapatalk

How does everyone register their same finger more than once? It tells me I've already registered that finger?
I noticed a dramatic improvement when I washed my hands really well, cleaned my screen, THEN registered my fingers.

Are you using a screen protector? If you are that is probably your problem.

bladestonez said:
Are you using a screen protector? If you are that is probably your problem.
Click to expand...
Click to collapse
Using the official oneplus tempered glass screen protector.

Yes compared to the Vivo and other phones in built fingerprint reader OP6T's fingerprint reader is slow and has some issues.

Fingerprint Problems - Can it even be fixed with a future software update?

Yesterday my fingerprint was working about 90% of the time, today it's complete trash.
Also there is a setting in the phone where it will completely wipe and factory reset your device after 15 failed attempts. With this crappy scanner it's a good thing to uncheck this option before your phone gets wiped.
Can this problem even be fixed with a future software update or is it flawed hardware?
Not too happy about a $1,600. phone with a crappy fingerprint scanner.

Don't worry about the factory wiping aft 15 attempts. The phone will ask you for an alternate method (pin or pattern) to unlock the phone once the 5th fingerprint attempt fails.
I think Samsung will improve it with future updates, but not by much.

I would not hold out much hope for an improvement. If you want to see improvement you need to do three things:
1. You need to enroll your primary finger at least 2, ideally 3 times.
2. When you are enrolling your finger, don't follow the instructions to move your finger around, rather just naturally grip your device as you would when you grab your phone to unlock it, and only scan that way.
3. This is the most contentious one, but probably the biggest difference. Do not use any screen protector at all. Any physical barrier is a sound barrier, and therefore an ultrasonic sensor will perform worse the more layers of stuff there is on top of it.

dhorgas said:
I would not hold out much hope for an improvement. If you want to see improvement you need to do three things:
1. You need to enroll your primary finger at least 2, ideally 3 times.
2. When you are enrolling your finger, don't follow the instructions to move your finger around, rather just naturally grip your device as you would when you grab your phone to unlock it, and only scan that way.
3. This is the most contentious one, but probably the biggest difference. Do not use any screen protector at all. Any physical barrier is a sound barrier, and therefore an ultrasonic sensor will perform worse the more layers of stuff there is on top of it.
Click to expand...
Click to collapse
I tried this once I got the phone enrolled my finger twice... problem solved..

One thing that the fingerprint sensor does not do well with, for some bizarre reason, is dry skin. If you have really dry fingers or the weather is very dry causing you to have dry fingertips, the sensor is definitely more prone to failure when scanning.
I also found one bug just a few minutes ago. If you have a Bixby routine running with widgets, you are required to unlock your phone to see the widgets, but the fingerprint sensor us disabled in this mode and needs you to explicitly press the unlock option before it will even scan.

A completely dry finger is the main problem. Try licking your finger and then try to unlock the phone. It would unlock the phone extremely fast and easy.
I don't know how this can be improved with a software update...
Fyi I am using the preinstalled screen protector. I agree that it would work much better without it. But I am afraid to leave the screen unprotected... What do you think?

madvinegar said:
A completely dry finger is the main problem. Try licking your finger and then try to unlock the phone. It would unlock the phone extremely fast and easy.
I don't know how this can be improved with a software update...
Fyi I am using the preinstalled screen protector. I agree that it would work much better without it. But I am afraid to leave the screen unprotected... What do you think?
Click to expand...
Click to collapse
lol,... and since the flu season isn't over yet, remember to wash your hands thoroughly before licking your fingers to avoid catching any bugs. Sorry, I know it's not that funny to deal with the fp sensor, it's just ridiculous. I personally went through that before sending it back and getting S10e. "my life is much better now..." :laugh:

Follow this, I get it 99% of the time.

$1,600. phone and I have to lick my finger to unlock the damn thing.

Guys it may seem stupid but I was reading a post about the S10+ fingerprint sensor and think I have the way it was supposed to be used figured out. They described using it as jabbing the screen

WHy wouldnt you use face unlock?

barbs666 said:
WHy wouldnt you use face unlock?
Click to expand...
Click to collapse
Because it's not supposed to be used on this device, it's unsafe and the S10 doesn't have an Iris scanner anymore, it will get fooled by a simple picture.

felloffthetruck said:
$1,600. phone and I have to lick my finger to unlock the damn thing.
Click to expand...
Click to collapse
This comment made my day :laugh::laugh::laugh:

Corv0 said:
Because it's not supposed to be used on this device, it's unsafe and the S10 doesn't have an Iris scanner anymore, it will get fooled by a simple picture.
Click to expand...
Click to collapse
Oh bugger, I was hanging to get this phone, but seems like alot ofannoying rushed out features..... god I hope its all fixed by updates in the near future!
Makes me want to keep using my s7E!

felloffthetruck said:
$1,600. phone and I have to lick my finger to unlock the damn thing.
Click to expand...
Click to collapse
Don't worry. Once the S11 comes out the FPS issues will be history and you will also get Android 10 plus the latest security patch, or at the very least one that's no more than 3 months old. That will be $2000 please.

mzsquared said:
lol,... and since the flu season isn't over yet, remember to wash your hands thoroughly before licking your fingers to avoid catching any bugs. Sorry, I know it's not that funny to deal with the fp sensor, it's just ridiculous. I personally went through that before sending it back and getting S10e. "my life is much better now..." :laugh:
Click to expand...
Click to collapse
Yes, I meant just for testing purposes...

barbs666 said:
Oh bugger, I was hanging to get this phone, but seems like alot ofannoying rushed out features..... god I hope its all fixed by updates in the near future!
Makes me want to keep using my s7E!
Click to expand...
Click to collapse
Rushed out? What are you even talking about?
They clearly specified that Android's face unlock is crap and it should be deleted, except Samsung never deletes stock android features, just don't touch it and use the bloody world's most advanced fingerprint authentication.

Try keeping hands moisturized with lotion instead of spitting :crying:. i use a lot of alcohol at work which dries my fingers out. after using lotion finger print worked a lot better. Keep Moisturized boys and girls lol

felloffthetruck said:
$1,600. phone and I have to lick my finger to unlock the damn thing.
Click to expand...
Click to collapse
Definitely a two step security thing. Now your wife / husband has to lick your finger first for unlocking your device while you're sleeping

Guys, very good tip that actually works great. Watch the video.
https://www.youtube.com/watch?v=WsN0HAGL-94

[Q] How good is the fingerprint reader?

Not how convenient is the placement - I can tell that in store, what I can't tell and most reviews doen't mention is mean how quickly and reliably does it recognise your fingerprint and how often does it miss, particularly are there any circumstances under which it consistently has trouble?
My current phone is a Galaxy S8, before that I had a Pixel. I plan on getting a new one in the next month or so, short listed to Galaxy S10+ or Pixel3 XL. One of my favourite things about the Pixel is the fingerprint reader, which worked pretty much first time, every time - when I picked it up the phone was unlocked by the time I was looking at the screen. The S8 not so much; I can work around the smaller, less well placed reader but it often has trouble reading my finger print. I've reregistered, rebooted, cleaned the reader etc many times, to no effect, it still has trouble particularly if my hands are cold (for a certain value of cold, never below freezing around here), skin is dry, skin is wet etc...
My partner has my old pixel, I still have a fingerprint registered on it and the pixel still consistently reads it first time, even when the S8 can't.
For me this is one of the make or break features on a phone, it's not covered in reviews and will be hard to test in store, so I'm asking this community - how good is the fingerprint reader on this phone?
(I'm posting this on both the Pixel 3XL and S10+ forums, apologies to those who follow both)

Honestly it works fine for me, but i dont use it much, I use the face unluck, any reason why you guys prefer fingerprint over face unluck ?

Raul77 said:
Honestly it works fine for me, but i dont use it much, I use the face unluck, any reason why you guys prefer fingerprint over face unluck ?
Click to expand...
Click to collapse
Yeah, they implemented the ultrasound sensor to make sure this type of authentication can't be attacked.
Face unlock is a flawed method and this phone doesn't even have the hardware to do a proper face authentication, it can be fooled by a picture.
Samsung should have disabled it but chose not to remove any stock Android features, so it is still present.
Regarding my experience with the fp sensor, it took some time to get used to the position but once that happened it's pretty much 10/10, definitely the fastest scanner I ever tried.
It is very sensitive to how you register it the first time, you need to register it in a natural position and it will work perfectly.

Fingerprint is very inconsistent for me. I've tried every method for success and it's just very hit and miss. I really use face unlock more just for my own convenience. I know it's really not secure but my phone never is never far away.

clownin72 said:
Fingerprint is very inconsistent for me. I've tried every method for success and it's just very hit and miss. I really use face unlock more just for my own convenience. I know it's really not secure but my phone never is never far away.
Click to expand...
Click to collapse
This.
Face unlock is basically all I use. Miss the note 9 and my pixel 3 xl fingerprint sensor dearly!
Sent from my SM-G975U1 using Tapatalk

You should ask how bad is the finger print unlocked instead how good. For me need two or three to unlock the screen

I really wish they would have left it on the back. It was flawless back there on my s8 plus. I love everything else on the phone but that. If it was more reliable this would be a non issue

When you get used to it, it's still only like 80% accurate. Randomly it will unlock super fast and other times it fails alot. It's really average.

I'd say about 90% but it is getting better. I haven't installed my white stone dome glass and currently using zaggs. I think more people are having trouble finding the sensor and placing their finger on top of it. Try turning the screen on to see where you need to hit and get use to it. After I've learned where it is, unlocking using fp has significantly improved at least through this screen protector

I was having issues until I added an additional finger but kept it the same one I have setup already. Now it works flawlessly.

When I initially got my phone (2 days before release) I registered my fingerprints ASAP. I did each finger twice and it worked alright, not the greatest but I assumed it was just a learning curve and muscle memory that I had to develop. I installed the newest update (ASBA) and it didn't seem to improve, initially. I removed my fingerprints and added them back, this time only once per finger and it honestly works better than before. I didn't do anything special when I deleted and added them again. I wonder if the fingerprints need to be added again after the ASBA update to actually benefit from the improved fingerprint recognition, as it appears that way for myself.

Fingerprints that are added on the s10 & s10+ get better over time with some ai trickery, google search s10 fingerprint ai, theres a sammobile read up...
Sent from my Galaxy S10+ using XDA Labs

In my S10+ is as bad as my A7 2017, I mostly use Face Unlock with "faster recognition " disabled, with that option off it won't be fooled with a picture anymore.

Outbreak444 said:
When I initially got my phone (2 days before release) I registered my fingerprints ASAP. I did each finger twice and it worked alright, not the greatest but I assumed it was just a learning curve and muscle memory that I had to develop. I installed the newest update (ASBA) and it didn't seem to improve, initially. I removed my fingerprints and added them back, this time only once per finger and it honestly works better than before. I didn't do anything special when I deleted and added them again. I wonder if the fingerprints need to be added again after the ASBA update to actually benefit from the improved fingerprint recognition, as it appears that way for myself.
Click to expand...
Click to collapse
I re registered them again after the update, and its like lightning now!!! THX!:highfive:

Outbreak444 said:
When I initially got my phone (2 days before release) I registered my fingerprints ASAP. I did each finger twice and it worked alright, not the greatest but I assumed it was just a learning curve and muscle memory that I had to develop. I installed the newest update (ASBA) and it didn't seem to improve, initially. I removed my fingerprints and added them back, this time only once per finger and it honestly works better than before. I didn't do anything special when I deleted and added them again. I wonder if the fingerprints need to be added again after the ASBA update to actually benefit from the improved fingerprint recognition, as it appears that way for myself.
Click to expand...
Click to collapse
iteam said:
I re registered them again after the update, and its like lightning now!!! THX!:highfive:
Click to expand...
Click to collapse
Had never issues with fingerprint reader. As I wrote somewhere else, best thing is to press softly when registering it and touch the sensor sometimes more right, left, up and down as you usually don´t hit the sensor exactly in the center in daily use. Anyway there was a little latency until screen woke up and maybe in one of ten cases it didn't work at the first time.
Now I did what you suggested. I deleted the former fingerprint and set a new one. And it´s not only some kind of feeling, it´s indeed much better now. Latency nearly has gone and the fingerprint recognition works absolutely perfect now. So thanks a lot for your advise. Obviously it is not the "AI" of the device but the "user intelligence" Samsung is learning from. The recent update did it - fixed it. Great now, thanks!!!!

It basically sucks. Anyone that says they have no problem with it are full of SH*T

Not very good.

felloffthetruck said:
It basically sucks. Anyone that says they have no problem with it are full of SH*T
Click to expand...
Click to collapse
I agree with you, is crap, I have to touch several times and if my skin is dry because of the climate compared to when I registered the fingerprints (much less climate), much worse.

citytrader said:
I agree with you, is crap, I have to touch several times and if my skin is dry because of the climate compared to when I registered the fingerprints (much less climate), much worse.
Click to expand...
Click to collapse
I'd say that's the biggest issue. It has difficulty recognizing your finger when it is dry (and that is according to the climate). When I registered them initially it worked great because my hands were slightly more humid.
At times I have to rub my hands on my hair or something to get it to recognize the fingerprint. There has to be something that Samsung can do to fix this. Especially given that this is the only secure method to unlock your phone.

felloffthetruck said:
It basically sucks. Anyone that says they have no problem with it are full of SH*T
Click to expand...
Click to collapse
Maybe you're actually just a reptile, or alien race? Honestly, I have no problems at all with the scanner. I don't understand what the people who do have the problems are doing because IMO it has to be user error. I'm not saying it's flawless, but I never have to re-attempt a scan more than once. Which is pretty much on par with how often I'd need to retry with my S8+.
Now, I don't use a tempered glass protector, only the factory one that came with it so that might be an issue some people face. But honestly, everyone who wines about the fingerprint scanner are probably just too stupid to use it properly or something.