Related
A capacitive touchscreen panel is coated with a material, typically indium tin oxide that conducts a continuous electrical current across the sensor. The sensor therefore exhibits a precisely controlled field of stored electrons in both the horizontal and vertical axes - it achieves capacitance. The human body is also an electrical device which has stored electrons and therefore also exhibits capacitance. When the sensor's 'normal' capacitance field (its reference state) is altered by another capacitance field, i.e., someone's finger, electronic circuits located at each corner of the panel measure the resultant 'distortion' in the sine wave characteristics of the reference field and sends the information about the event to the controller for mathematical processing. Capacitive sensors can either be touched with a bare finger or with a conductive device being held by a bare hand. Capacitive touchscreens are not affected by outside elements and have high clarity. The Apple iPhone is an example of a product that uses capacitance touchscreen technology: the iPhone is further capable of multi-touch sensing.
Capacitive sensors work based on proximity, and do not have to be directly touched to be triggered. In most cases, direct contact to a conductive metal surface does not occur and the conductive sensor is separated from the user's body by an insulating glass or plastic layer. Devices with capacitive buttons intended to be touched by a finger can often be triggered by quickly waving the palm of the hand close to the surface without touching.
The HTC/T-Mobile G1/Dream is also equipped with a capacitive touch screen.
is the Xperia X1 also equipped with Capacitive touch screen? because i noticed its not as sensitive as iphone
Without opening up the phone, there are several ways to find out if a phone uses a capacitive or resistive (i.e. pressure-sensitive) screen.
1. Look at the screen off-angle in bright light. You may be able to see a grid of dots that looks something like this and extends over the entire screen surface:
. . .
. . .
. . .
If you can, it's probably not a capacitive screen.
2. Can the screen be operated by a non-conductive object i.e. a toothpick?
If so, it's probably not a capacitive screen.
3. Does the device come with a stylus/"plectrum" and does it require screen calibration?
If it does, it's probably not a capacitive screen.
No mass-market WM device to date has a capacitive touchscreen, including the X1. The first post of this thread will help you understand why: http://discuss.pocketnow.com/showthread.php?threadid=23389
Nocturnal310 said:
is the Xperia X1 also equipped with Capacitive touch screen? because i noticed its not as sensitive as iphone
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Click to collapse
My Xperia is more sensitive than an iPhone. Granted I did some tweaking, but still.
No, Xperia is like the rest of our phones has resistive screen. It can be very sensitive, but stylus will be your main indication. I have LG Prada that has capacitive screen and LG Viewty that has a resistive one.
enigma1nz said:
No, Xperia is like the rest of our phones has resistive screen. It can be very sensitive, but stylus will be your main indication. I have LG Prada that has capacitive screen and LG Viewty that has a resistive one.
Click to expand...
Click to collapse
No? So, you have spied on me using my phone and know that it is not more sensitive? Pffft...
iphone rockz!
im sorry but no phone is as sensitive as an iphone!
jesse_g said:
im sorry but no phone is as sensitive as an iphone!
Click to expand...
Click to collapse
You should be sorry, because you are wrong. Do your research better and come back to apologize.
sorry but i have the same idea...... i think iPhone is more sensitive than xperia
Do capacititve screens have a separation issue like some of the HTC resistive screens have?
Where the layers of a resistive screen including the digitizer start to separate causing a rectangular shape in the center that looks like oil on water.
Has happened to me and many others where the screen eventually has a complete failure.
I do know that the capacitive screens on the iPhone are prone to breakage due to the fact that it has a glass surface.
The resistive screen of the Diamond is less prone to breakage because it has a plastic type film on the surface.
Btw, my screen is pretty sensitive, whether using the stylus or touch.
You can tweak your resistiv screen by allign screen.
If you dont press the screen and move little circles between the arrow you can make screen more sensitiv
Sorry for my english cause i am german
Black93300ZX said:
A capacitive touchscreen panel is coated with a material, typically indium tin oxide that conducts a continuous electrical current across the sensor. The sensor therefore exhibits a precisely controlled field of stored electrons in both the horizontal and vertical axes - it achieves capacitance. The human body is also an electrical device which has stored electrons and therefore also exhibits capacitance. When the sensor's 'normal' capacitance field (its reference state) is altered by another capacitance field, i.e., someone's finger, electronic circuits located at each corner of the panel measure the resultant 'distortion' in the sine wave characteristics of the reference field and sends the information about the event to the controller for mathematical processing. Capacitive sensors can either be touched with a bare finger or with a conductive device being held by a bare hand. Capacitive touchscreens are not affected by outside elements and have high clarity. The Apple iPhone is an example of a product that uses capacitance touchscreen technology: the iPhone is further capable of multi-touch sensing.
Capacitive sensors work based on proximity, and do not have to be directly touched to be triggered. In most cases, direct contact to a conductive metal surface does not occur and the conductive sensor is separated from the user's body by an insulating glass or plastic layer. Devices with capacitive buttons intended to be touched by a finger can often be triggered by quickly waving the palm of the hand close to the surface without touching.
The HTC/T-Mobile G1/Dream is also equipped with a capacitive touch screen.
Click to expand...
Click to collapse
interesting... I didn't know that
jesse_g said:
im sorry but no phone is as sensitive as an iphone!
Click to expand...
Click to collapse
darren shan said:
sorry but i have the same idea...... i think iPhone is more sensitive than xperia
Click to expand...
Click to collapse
Hey guys there is a cab called iTouch for blackstone and it tweaks the resistance to ultra-sensitive, works like a charm. http://forum.xda-developers.com/showthread.php?t=469865 , try it.
1. Look at the screen off-angle in bright light. You may be able to see a grid of dots that looks something like this and extends over the entire screen surface:
. . .
. . .
. . .
If you can, it's probably not a capacitive screen.
Not necessarily true. The Nexus One has a capacitive screen and also has the dots...
Sent from my Nexus One using XDA App
Multi-touch
So.. I guess I'm going to show my ignorance, but here is my question.
There are several posts on several sites talking about how you can't do multi-touch unless you have a capacitive screen. Then I go to Pandawill and look at the G10. It says it's a resistive screen but there are videos of it doing pinch-to-zoom.
Can someone help me understand how multi-touch relates to the screen type?
Sorry if i'm too much of a n00b
Sorry to add fuel to fire but a capacitive screen will always be more sensitive (speaking purely about the physics of it) than a resisitive screen.
Why?
Capacitive screens rely on charge and comparative charge of two bodies. In some instances, capacitive screens can work without the finger actually touching the screen.
Resistive screens rely on a minute deflection from contact to connect two conductive layers. You can touch a resistive screen lightly enough to not result in a UI interaction. Resisitve screens can be tweaked to work at a very high sensitivity but still not as sensitive as a capacitive screen.
Go ahead, compare two phones with opposing screen tech side by side. I thought nothing could be as responsive as my Topaz till I bought a Nexus, then Desire (which have other issues btw! )
Sorry but thats the blunt science behind it. Bear in mind the perception of responsiveness to touch can very well depend on the quality/smoothness of the software written or the user interface.
Source:
HTC Touch Diamond 2 vs. HTC Desire
Source 2:
My university degree.
Sorry for the double post but to answer your question,
Yes resistive screens can be used to provide multi touch support. Where this support isnt built into the drivers for the digitizer, its a lot harder. Bear in mind most older phones were launched before the mainstream advent of multi touch. Thus no drivers...only brilliant minds at XDA
However, using a resisitve touch screen to provide multi touch has some serious drawbacks, mainly on smaller screens.
I hate to break it to you but the reason behind this is actually the size of your "pinch" fingers with respect to screen size.
Multi touch on a small resistive screen cause deflection at multiple points on the digitizer but due to the reliance on deflection, the software will inevitably struggle to understand what sort of multitouch gesture you're trying to do! Your fingers with relation to screen size are simply too big!
When you have a bigger screen or a well designed digitizer + software, it can determine positions of multiple points much more accurately, thus allowing multi-touch.
eulalie said:
So.. I guess I'm going to show my ignorance, but here is my question.
There are several posts on several sites talking about how you can't do multi-touch unless you have a capacitive screen. Then I go to Pandawill and look at the G10. It says it's a resistive screen but there are videos of it doing pinch-to-zoom.
Can someone help me understand how multi-touch relates to the screen type?
Sorry if i'm too much of a n00b
Click to expand...
Click to collapse
ozy944 said:
Sorry for the double post but to answer your question,
Yes resistive screens can be used to provide multi touch support. Where this support isnt built into the drivers for the digitizer, its a lot harder. Bear in mind most older phones were launched before the mainstream advent of multi touch. Thus no drivers...only brilliant minds at XDA
However, using a resisitve touch screen to provide multi touch has some serious drawbacks, mainly on smaller screens.
I hate to break it to you but the reason behind this is actually the size of your "pinch" fingers with respect to screen size.
Multi touch on a small resistive screen cause deflection at multiple points on the digitizer but due to the reliance on deflection, the software will inevitably struggle to understand what sort of multitouch gesture you're trying to do! Your fingers with relation to screen size are simply too big!
When you have a bigger screen or a well designed digitizer + software, it can determine positions of multiple points much more accurately, thus allowing multi-touch.
Click to expand...
Click to collapse
Right.. I get that pinch is tougher on a small screen thats less sensative. The question was posed because there isn't a, what i consider to be cheap (in the 250$ or less range), 10 in capacative android tablet on the market.
If i venture in the the flatpad/apad/epad world... is it the case that it is impossible for that type of screen to do multi-touch? From your response I'm hearing that it IS possible to do multi-touch on a flatpad.. given that there are drivers supporting it. I'd love to have a capacative screen but from what i've seen online, they're going to be twice the cost or more.
eulalie said:
Right.. I get that pinch is tougher on a small screen thats less sensative. The question was posed because there isn't a, what i consider to be cheap (in the 250$ or less range), 10 in capacative android tablet on the market.
If i venture in the the flatpad/apad/epad world... is it the case that it is impossible for that type of screen to do multi-touch? From your response I'm hearing that it IS possible to do multi-touch on a flatpad.. given that there are drivers supporting it. I'd love to have a capacative screen but from what i've seen online, they're going to be twice the cost or more.
Click to expand...
Click to collapse
A dilemma huh? To be brutally honest, most budget oriented tablets are simply that: budget oriented. A lot of them (im trying not to generalize) and Ive tried a fair few are poorly implemented tablets and more trouble than they are worth. Slow, laggy, bad battery life. You'll have enough issues to simply forget the lack of multi touch.
If I was after a tablet, hard as it may be, Id wait till some big players launch a proper device...that'll lead to better adoption and less half baked tablets that are more tech demo than retail product.
Bear in mind the lack of android market access on almost all of these tablets. Due to their generic nature, dev work is also a no-go. Everybody and their friends and family have a device out with a costomised, baked os that its not even funny!
Id check out the galaxy tablet from samsung or wait for it to make some waves and bring forth better implemented copycat products
yodafone said:
Without opening up the phone, there are several ways to find out if a phone uses a capacitive or resistive (i.e. pressure-sensitive) screen.
1. Look at the screen off-angle in bright light. You may be able to see a grid of dots that looks something like this and extends over the entire screen surface:
. . .
. . .
. . .
If you can, it's probably not a capacitive screen.
2. Can the screen be operated by a non-conductive object i.e. a toothpick?
If so, it's probably not a capacitive screen.
3. Does the device come with a stylus/"plectrum" and does it require screen calibration?
If it does, it's probably not a capacitive screen.
No mass-market WM device to date has a capacitive touchscreen, including the X1. The first post of this thread will help you understand why: http://discuss.pocketnow.com/showthread.php?threadid=23389
Click to expand...
Click to collapse
The HTC HD2 is a capacitive touch-screen phone, was mass marketed on WM and has the dots (not horizontally but diagonally). Dont talk about it if you dont know about it.
http://crave.cnet.co.uk/mobiles/htc-hd2-first-windows-mobile-with-capacitive-touchscreen-49303837/
Hey guys, so I tested the evo 4g, which is supposed to have the same Atmel maxtouch multitouch sensor and find that it has significant input lag (tested with multitouch visualizer) basically the dot which signifies where the input coordinates are lags about 1/2 second to 1 second behind the movements of my fingers, I was wondering if anyone with an incredible could test it on theirs and so maybe shed some light onto whether it was a software issue or a hardware issue with the maxtouch. thanks!
Dorick said:
Hey guys, so I tested the evo 4g, which is supposed to have the same Atmel maxtouch multitouch sensor and find that it has significant input lag (tested with multitouch visualizer) basically the dot which signifies where the input coordinates are lags about 1/2 second to 1 second behind the movements of my fingers, I was wondering if anyone with an incredible could test it on theirs and so maybe shed some light onto whether it was a software issue or a hardware issue with the maxtouch. thanks!
Click to expand...
Click to collapse
Individual Touch, Single Finger: Very responsive. No lag (estimate <20ms). Can successfully tap many times/second with no drop-outs.
Individual Touch, Alternating Fingers: Comfortably responsive. No lag as long as presses are distinct, as if with a single finger. If there is a slight overlap in the alternating touches, often only one point will be detected. You can see this by rapidly tapping back and forth between two fingers on the screen -- an occasional touch is missed (you have to be very fast) -- likely because the duration of the overlap does not seem long enough for a multi-touch detection (see below).
Multiple Touch: If fingers are in motion (swiping, pinching, etc.) when contact is made with the screen, then both points will be detected very quickly (estimate <150ms) and subsequently tracked very well as they continue to move. There is, for the most part, no detectable lag for me in tracking the locations of two fingers moving about. If you really go nuts moving them about the screen, then the multi-touch detection will occasionally 'stutter' for a split-second here and there, but nothing like the 1/2s to 1s you describe. If fingers are stationary when the screen is touched, not in motion, then it seems to take much longer for the multi-touch to be detected (estimate >500ms), and even then perhaps it is detecting a slight movement in one of the points. Is a tiny bit of motion perhaps required for the multi-touch detection to even work? I don't know enough about the technology to answer that one.
Overall: Excellent real-world responsiveness (apart from a separate, and conditional, grounding issue some of us have experienced). The only situation I could see someone having trouble with is if they are a lighting fast typist with the on-screen keyboard. If you type fast enough to overlap some of your key presses, than you will probably notice some missed letters here and there, and a few scattered reports seem to bear this out. I am not that fast, and I find the sensor on the Incredible to be a huge improvement over any other smart phone I have ever used.
Hope that helped. Cheers!
Thanks alot for your detailed analysis! Seems like its a software issue on the evo then I suppose.
in froyo update i think they will fix that
both of them does not have the max touch technology (you cannot use nither fingre nails nor stylus ) and it has the same matrix pattern in all htc devices screen ,so what
hoss_n2 said:
both of them does not have the max touch technology (you cannot use nither fingre nails nor stylus ) and it has the same matrix pattern in all htc devices screen ,so what
Click to expand...
Click to collapse
I realize that Atmel makes the claim that the MaxTouch sensor family works with fingernails, gloves, or a plain stylus, and that we clearly cannot use those things on the Incredible, but rest assured, we have a MaxTouch sensor all the same.
See attached cropped picture of a partially disassembled Incredible, look towards the bottom-center for a chip marked Atmel MXT224. Specifications for the MXT224 are a little different from the overall MaxTouch family description, and they do *not* include mention of support for fingernails, gloves, or plain stylus, while it does specifically reference a 'conductive' stylus.
askwhy said:
I realize that Atmel makes the claim that the MaxTouch sensor family works with fingernails, gloves, or a plain stylus, and that we clearly cannot use those things on the Incredible, but rest assured, we have a MaxTouch sensor all the same.
See attached cropped picture of a partially disassembled Incredible, look towards the bottom-center for a chip marked Atmel MXT224. Specifications for the MXT224 are a little different from the overall MaxTouch family description, and they do *not* include mention of support for fingernails, gloves, or plain stylus, while it does specifically reference a 'conductive' stylus.
Click to expand...
Click to collapse
it is written it only supports two fingres not more
wow this is really confusing, great find on the chip number, so on the specifications it mentions one touch or two touch support.
BUT it is listed under unlimited touch on this page
http://www.atmel.com/dyn/products/devices_v2.asp?family_id=701
what gives?
Hi guys. I'd like to know if there is any way to calibrate the S-Pen, somethink like in the old Windows Mobile days with that little cross which you had to tap to calibrate your screen to the stylus. It's off by a few pixels on my note, which makes it annoying.
+1 .......
My GN too is off by a few pixel and is kinda annoying specially for some precision drawing.
It's supposed to be off, that's why you set it for left and right handed so you can see what your doing.
All you need to do is get used to it.
yeah that how they design . like set the right hand then it will off a bit on the left . if setting using left hand then it will off to the right side a bit. but its only on s memo ? seem to be spot on in browsing web.
I just did a little discovery. When I touch the screen either with one finger of my other hand or with part of the hand which holds the pen TOGETHER with S Pen, the accuracy is much better then by touching the screen solely by S Pen. Tested with default stylus and some OEM Lifebook tablet PC stylus. Both behave better when I rest my palm on screen while drawing/writting.
cube48 said:
I just did a little discovery. When I touch the screen either with one finger of my other hand or with part of the hand which holds the pen TOGETHER with S Pen, the accuracy is much better then by touching the screen solely by S Pen. Tested with default stylus and some OEM Lifebook tablet PC stylus. Both behave better when I rest my palm on screen while drawing/writting.
Click to expand...
Click to collapse
Are you sure you aren't just holding the pen at a slightly different angle when doing that? The way you hold the pen makes quite a big difference to the accuracy in my experience.
I think that the precision of the pen is perfect.
I think it's wrong yours handle
not using the pen perpendicular ...
try to held the s-pen as a real pen (inclined) and you'll find it very precise.
you must use it as you use one pen with a sheet of paper
I don't think you write with the pen perpendicular the book...
Elenkis said:
Are you sure you aren't just holding the pen at a slightly different angle when doing that? The way you hold the pen makes quite a big difference to the accuracy in my experience.
Click to expand...
Click to collapse
The angle definitely impacts the precision. As written above the usual 'paper and pen' holding is the best and also the upward pen button orientation helps. But somehow I get even more precise results when touching the screen.
I just get a my replacement of galaxy note from the shop due to the screeen problem in my last phone.
I am quite frustrated because I found that my s pen really needs calibration. My last galaxy note, although the screen had problem, it didn't have any calibration problem that the s pen is so accurate. So unhappy
Sent from my GT-N7000 using XDA App
SNiiPE_DoGG said:
It's supposed to be off, that's why you set it for left and right handed so you can see what your doing.
All you need to do is get used to it.
Click to expand...
Click to collapse
It should get used to me, not the other way round.
I'm left-handed, and many left handers have different ways of holding pens due to smudge-avoidance habits. Setting the phone to "left handed" may suit some lefties, but not me.
What's so difficult about allowing personal calibration, Samsung?
I've found my pen is inaccurate too, unless you're holding it and using it like a pen and not a stylus... If that makes sense?
If you use it like a traditional stylus on resistive touch screen and expect the point of the stylus to be exactly where it hits the screen regardless of pen angle then it'll always appear to be very inaccurate. But if you treat it more like a normal pen and hold it at a normal handwriting angle and except the mark to appear where the tip of the pencil would be in that position its just fine.
Change your mindset: This is a standard pencil, not a stylus. Once you treat it like a normal pencil/pen and use it like you normally do handwriting instead of as a stylus poking at the screen you'll find its very good.
mine also a bit off its upper then the actual touch point.
Sent from my GT-N7000 using XDA App
erlz said:
mine also a bit off its upper then the actual touch point.
Click to expand...
Click to collapse
Mine too. I really think this was a deliberate move by Samsung. More like a pencil/pen than a stylus.
daxmedflax said:
Mine too. I really think this was a deliberate move by Samsung. More like a pencil/pen than a stylus.
Click to expand...
Click to collapse
This. It's supposed to be this way, to make writing more natural. Not a flaw, but I do wish there was an option to disable it. Maybe a mod in the future will enable us to.
Sent from my GT-N7000 using xda premium
Unsinkable II said:
It should get used to me, not the other way round.
I'm left-handed, and many left handers have different ways of holding pens due to smudge-avoidance habits. Setting the phone to "left handed" may suit some lefties, but not me.
What's so difficult about allowing personal calibration, Samsung?
Click to expand...
Click to collapse
Fully agreed - we should be able to calibrate it. and it should definitely get used to us and not the other way around!!!!
Sent from my GT-N7000 using XDA App
kebong said:
This. It's supposed to be this way, to make writing more natural. Not a flaw, but I do wish there was an option to disable it. Maybe a mod in the future will enable us to.
Sent from my GT-N7000 using xda premium
Click to expand...
Click to collapse
It seems like a flaw to me. When I use it towards the center of the screen it seems OK, as I get closer to the edges it drifts off center. It certainly looks like a calibration bug to me.
same issue, need to hold it like a pen
http://forum.xda-developers.com/showthread.php?p=19491160
Check out this thread
I posted a rather long thing about the accuracy issue.
Basically, there's a set offset based on left/right handedness, which will change depending on the orientation of the screen. If the angle at which you write moves outside of what Samsung deems "normal" then it becomes horribly inaccurate.
Everyone is trying to stick up for and justify this pen problem...if this is the case, how come other drawing programs on the note aren't nearly as bad?
I can't zoom in or out with the pen and my finger, but I can with two fingers.
I wish I could multi touch with the pen.
9.99/10 phone though!
You Can zoom in and out with one finger
Sent from my SM-N9005 using Tapatalk
there are two different sensor panels...
You can double tap in the browser with the s pen and it'll zoooooooooommm in/out.
DannyDoan said:
I can't zoom in or out with the pen and my finger, but I can with two fingers.
I wish I could multi touch with the pen.
9.99/10 phone though!
Click to expand...
Click to collapse
I'll very much take this over the phone accidentally registering finger touches when trying to write with pen.
Seemingly can't have it both ways
I solved it by using two pens.
So far, I like everything about the S20+ except the in-screen fingerprint sensor. The fingerprint sensor is too small and it only works about 75% of the time. The in-screen fingerprint sensor on my OnePlus 7 Pro was far superior. BTW, the S20+ still has the factory installed screen protector, as did my OnePlus 7 Pro.
might be silly, but registering 2 of the same finger can help.
Willy_P said:
So far, I like everything about the S20+ except the in-screen fingerprint sensor. The fingerprint sensor is too small and it only works about 75% of the time. The in-screen fingerprint sensor on my OnePlus 7 Pro was far superior. BTW, the S20+ still has the factory installed screen protector, as did my OnePlus 7 Pro.
Click to expand...
Click to collapse
Trying registering two thumbs under one profile. It could be all in my head but found it helps with accuracy.
i dont know.. maybe it is just me.. i never had any problems with fingerprints sensor.. and the in-display fingerprint sensor seems to be fast too! compared to my mom's in-display fingerprint sensor on her A50...
the trick is, know where to put ur finger
Love the S20
But fingerprint and the face unlock is pretty poor. My OnePlus 6t handled both much better...
I don't know about other phones, but yeah. The finger print scanner needs some help. Not atrocious, but just ok.
Similar sentiments here:
https://www.androidpolice.com/2020/...qualcomms-bad-fingerprint-scanner-technology/
Almost makes me contemplate whether to just stick with my Pixel 4 XL, though I'm so used to Samsung phones otherwise. The S10 was OK for me in terms of fingerprint acceptance, but definitely worse than other phones I'd used before
The face unlock is very quick if the lighting is good, otherwise it struggles...the Finger print works great on my device...quicker then my s10+. I struggled to register my finger initially, but after it completed I was surprised how quick it was...Due to the size of my hands I know exactly how far from the bottom to place my finger to unlock the phone...if not almost 100% on the sensor then it takes longer
I haven't had any problems with accuracy on the sensor. Even works if my finger is moist or has an indentation from holding in landscape.
It's not incredibly fast, but it seems pretty solid to me. Certainly not problematic.
I don't use the face unlock so I have no input on that.
I am struggling with fingerprint reader as well. I have registered both thumbs and index fingers but the fingerprint unlock is damn slow and the sensor fails to register fingerprint. Most of the time I see "press a little harder" notification. I fear I may end up cracking the display with harder finger presses. Coming from SGS9, this fingerprint reader is a downgrade! On the other hand face unlock seems quite snappy, but how secure is face unlock?
Willy_P said:
So far, I like everything about the S20+ except the in-screen fingerprint sensor. The fingerprint sensor is too small and it only works about 75% of the time. The in-screen fingerprint sensor on my OnePlus 7 Pro was far superior. BTW, the S20+ still has the factory installed screen protector, as did my OnePlus 7 Pro.
Click to expand...
Click to collapse
I am finding the exact opposite to you ... In screen sensor is fast and accurate, works maybe 9 out of 10 times. I registered my thumb 2 times
Are you using the original Samsung factory fitted film screen protector or have you replaced it with tempered glass protector?
The ultra sonic in screen sensors do not play nicely with glass screen protectors at all. The infra red in screen sensors on the Samsung A range handsets works fine with tempered glass, I don't k ow why Samsung went for infra red on the S range personally
dezborders said:
I am finding the exact opposite to you ... In screen sensor is fast and accurate, works maybe 9 out of 10 times. I registered my thumb 2 times
Are you using the original Samsung factory fitted film screen protector or have you replaced it with tempered glass protector?
The ultra sonic in screen sensors do not play nicely with glass screen protectors at all. The infra red in screen sensors on the Samsung A range handsets works fine with tempered glass, I don't k ow why Samsung went for infra red on the S range personally
Click to expand...
Click to collapse
I'm glad the sensor is working for you. I'm still using the factory installed screen protector and I plan to replace it at some point with the Whitestonedome tempered glass. Although the sensor is working for you, the problems with Qualcomm's ultrasonic technology are pretty well known:
https://www.androidpolice.com/2020/...qualcomms-bad-fingerprint-scanner-technology/
Willy_P said:
I'm glad the sensor is working for you. I'm still using the factory installed screen protector and I plan to replace it at some point with the Whitestonedome tempered glass. Although the sensor is working for you, the problems with Qualcomm's ultrasonic technology are pretty well known:
https://www.androidpolice.com/2020/...qualcomms-bad-fingerprint-scanner-technology/
Click to expand...
Click to collapse
Try changing the setting to be more sensitive to screen touches and reregister your fingerprints. My S20+ works so much better than my S10 did. Faster and more accurate. A very quick firm touch is all you need press to long it keeps looking it won't open the screen till you let go.
Yeah it's working fine on mine but i recorded 3 sets of my right thumb and 3 sets of my left thumb.. Having multiple records of the same finger helps a lot
Sent from my SM-G985F using Tapatalk
Working just as well for me as on the Note 10+. Even at least as fast as on my OP7T Pro.
I tried this for my S20+ and I saw a huge difference in the speed of my fps when the phone is off and you have just a blank screen.
Settings > tap search icon in top right > type "optimize battery usage" in search bar > tap "optimize battery useage" until you get to the apps screen > tap to show all apps > go to com.samsung.android.biometrics > toggle this off.