Fingerprint not working most of the time - no icon appears - Samsung Galaxy S10 Questions & Answers

Hi guys, I own a S10 for few days. I activated fingerprint and smart lock so that it should not be locked when I'm connected to my smart watch.
The fingerprint sensor isn't working in 90% of the cases when I try to unlock my phone. The small icon isn't showing and it seems that the sensor is disabled.
Sometimes (in 10%) the fingerprint icon is showing and then the sensor is working really well.
AOD is activated and should show the sensor when I tab once on the screen. But also this only working in the 10% cases.
It's also not working while double tapping on the screen. The lock screen appears but no fingerprint icon.
Also the smart lock while connected to my watch isn't working. It's really annoying
sounds like this issue, but I don't get the message with the dirty sensor...
https://us.community.samsung.com/t5...et-fingerprint-unlock-not-working/td-p/584620
anyone has an idea? thx

Did u try a software reset?
Sent from my SM-G973F using Tapatalk

abhichak93 said:
Did u try a software reset?
Sent from my SM-G973F using Tapatalk
Click to expand...
Click to collapse
thats what I was going to prevent
but will try if nobody has any better idea

Related

Proximity can't turn off screen when covered

I installed a couple of apps for this, like Smart cover https://play.google.com/store/apps/details?id=smart.cover, and Proximity Smart Cover https://play.google.com/store/apps/details?id=com.danielling.proximitysmartcover . Basically I want when the proximity is covered (case closed), the screen goes off, and then goes on when it's uncovered. These 2 apps can do the 'wake' part alright (wake screen when the proximity is no longer covered) but they can't seem to turn off the screen when it's covered. I granted both admin permission. Here are some clues:
_ My proximity sensor is working alright (checked through hidden menu, and it does turn off the screen when proximity covered in-call)
_ Tap tap app can work (touch/wave 2x to lock, same to wake)
So any idea why those 2 app can't work? Thanks in advance.
I use Smart Screen on my Note II with the following settings:
Basic - everything blank (no ticks in the boxes}
Prox - Blank
Sensor - Blank
Start/Stop - Disable in landscape
This works for me and I have not noticed any battery drainage problems.
Please note: I have stock 4.1.2 and no lock screen enabled (my phone never leaves my sider.
This is not my ideal setup as the screen will immediately sleep if i hapren to accidently go to close. I need to pull down the notification menu at the far left or right of the screen. I have tried to play with the delayed reaction settingsand have had contact with the developer about the situation.
I am however happiest that as soon as i open my wallet case the phone is ready for use.
Quick and easy with one hand
Master619 said:
I installed a couple of apps for this, like Smart cover https://play.google.com/store/apps/details?id=smart.cover, and Proximity Smart Cover https://play.google.com/store/apps/details?id=com.danielling.proximitysmartcover . Basically I want when the proximity is covered (case closed), the screen goes off, and then goes on when it's uncovered. These 2 apps can do the 'wake' part alright (wake screen when the proximity is no longer covered) but they can't seem to turn off the screen when it's covered. I granted both admin permission. Here are some clues:
_ My proximity sensor is working alright (checked through hidden menu, and it does turn off the screen when proximity covered in-call)
_ Tap tap app can work (touch/wave 2x to lock, same to wake)
So any idea why those 2 app can't work? Thanks in advance.
Click to expand...
Click to collapse
try to re-calibrate proximity sensor in hidden menu just in case. i had some issues with it turning on & off the screen in-call, re-calibration fixed it.
Flying_Bear said:
try to re-calibrate proximity sensor in hidden menu just in case. i had some issues with it turning on & off the screen in-call, re-calibration fixed it.
Click to expand...
Click to collapse
calibrate proximity sensor in hidden menu???
Sent from my LG-P880 using xda premium
Flying_Bear said:
try to re-calibrate proximity sensor in hidden menu just in case. i had some issues with it turning on & off the screen in-call, re-calibration fixed it.
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Click to collapse
Tried calibrating both in hidden menu and in app, but still there. But using another app, Smart screen off pro, fixed it. Guess it has to be with a different mechanism.
not proximity sensor
I have had the same problem on my 4X but the problem isn't the proximity sensor. I have tried various other apps including orientation and brightness locks. These haven't worked either, I have tried to change lock screen settings and screen time out but these haven't worked. Does anyone have any other suggestions or solutions to this problem?
I use "smart screen off pro" with no problems, all is working as expected....
Bogeyof said:
I use "smart screen off pro" with no problems, all is working as expected....
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Click to collapse
what lock screen, brightness and permissions settings do you have on your phone other than what is changed within the app?
geronphillips said:
what lock screen, brightness and permissions settings do you have on your phone other than what is changed within the app?
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Click to collapse
OK, I dont use a lock screen, never tested if its working...
My settings (checked):
Basic:
- Start on Boot
- Hide notification messages
Start/Stop
- Disable when in Landscape
- Enable only when in Launcher (not necessary, if u want it allways to turn screen off leave unchecked, I want Screen on in Apps, so I checked it)
Vibration:
- Vibrate when screen turned off
Thats all...

Ambient display no longer working

Hi guys
Ambient display used to work for me and now seems to not ever show up.
I have a protector on the screen but it has a full cut away by the proximity sensor and so I dont think that is an issue. Also checked a sensor app and they are all working
I installed a notification app called edge colour notifications which I then removed. Issue seems to be timed with that but not sure.
Any ideas how to possibly get it working again?
Not rooted
Thanks
darrenkellum said:
Hi guys
Ambient display used to work for me and now seems to not ever show up.
I have a protector on the screen but it has a full cut away by the proximity sensor and so I dont think that is an issue. Also checked a sensor app and they are all working
I installed a notification app called edge colour notifications which I then removed. Issue seems to be timed with that but not sure.
Any ideas how to possibly get it working again?
Not rooted
Thanks
Click to expand...
Click to collapse
Since you're stock, you're kind of limited. Boot to recovery, select wipe cache, reboot.
Clearing cache didn't work but I think I figured it out.
I'm using a app called Automateit which runs phone actions off triggers. I turned it off within its settings and now ambient seems to work. Tested it twice now turning the app service on and off and seems to work. Hopefully that's sorted.
Have another strange issue as well where if I have screen lock enabled and reboot the phone, when it reaches the lock screen it goes into a weird loop on the lock screen and requires rebooting as you can't unlock. Have to reboot many times before it will let you in without this loop. Disabling the lock screen seems to stop this. Anyone else had this?

Note 8 Iris Scanner Problem

Hi, there might be some problem with my note 8.
I activate the instant unlock without swiping the lock screen for the iris recognition unlock.
the problem is something the iris camera will not shows up on the screen after i swipe up to check on the position of my eyes. it said 'if this keeps happening, please restart your phone'.
I wondering anything cause the iris camera not to appear on the screen.
The iris scanner still works well on capture my irises to unlock the phone, it is just that the iris camera do not appears on the screen (the one with the two circle to position your eyes).
desmondk said:
Hi, there might be some problem with my note 8.
I activate the instant unlock without swiping the lock screen for the iris recognition unlock.
the problem is something the iris camera will not shows up on the screen after i swipe up to check on the position of my eyes. it said 'if this keeps happening, please restart your phone'.
I wondering anything cause the iris camera not to appear on the screen.
The iris scanner still works well on capture my irises to unlock the phone, it is just that the iris camera do not appears on the screen (the one with the two circle to position your eyes).
Click to expand...
Click to collapse
Try factory resetting the device and check if the issue is still there. If yes, take the device to the samsung store for replacement. Mine works flawlessly. Much better than S8+ actually.
onkarsingh_pardeshi said:
Try factory resetting the device and check if the issue is still there. If yes, take the device to the samsung store for replacement. Mine works flawlessly. Much better than S8+ actually.
Click to expand...
Click to collapse
Tried factory reset it... still the same.
The iris scanner have no problem unlocking my phone, it is just that the iris camera with the two circles does not appear on the screen when iris scanner activated.

Always on Display dims, but doesn't turn off in pocket

did anyone notice the Always on Display dims, but doesn't turn off when turned face-down or put in your pocket?
Yes and looks as though that is how it will always be now. I read an article about how they did proximity sensor on this phone. The process sensor causes a white light to blink when it's on so it is only used when on a call.
Wait ... So the ALWAYS ON display is on ALWAYS and that's a problem??? Hmmmm
Try Gravity Screen.
vintagerock said:
Yes and looks as though that is how it will always be now. I read an article about how they did proximity sensor on this phone. The process sensor causes a white light to blink when it's on so it is only used when on a call.
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Click to collapse
This is bull s h i t! WTH!!
Yea, I was looking into this. The "behind the glass" proximity sensor isonly on when in calls etc. You'l see it's on by the flashing white dot near the battery icon when in a call etc. All other times it seems it's off. So AOD is always on as it doesn't use the proximity sensor any longer.
Really stupid on their part.
the_scotsman said:
Yea, I was looking into this. The "behind the glass" proximity sensor isonly on when in calls etc. You'l see it's on by the flashing white dot near the battery icon when in a call etc. All other times it seems it's off. So AOD is always on as it doesn't use the proximity sensor any longer.
Really stupid on their part.
Click to expand...
Click to collapse
I agree, Also I used the lift to call when in a persons sms thread in the stock messages app, now that does not work either because of this.... I can't find an option to turn it on. Never had an option on my prior galaxys as it just worked...
jstodda said:
Wait ... So the ALWAYS ON display is on ALWAYS and that's a problem??? Hmmmm
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Click to collapse
Yes because I want it always on WHEN I CAN SEE IT, not when it's in my pocket.
---------- Post added at 09:04 AM ---------- Previous post was at 09:03 AM ----------
Tel864 said:
Try Gravity Screen.
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Click to collapse
Have you tried it for this case?
This sucks... Only way I understand this it's that they decided that AOD and proximity sensor always on consume almost the same amount of battery.
I cover the proximity sensor on s9+ and turn off AOD in 30sec and then i try that on my s10+ and nothing happened and for now i turn it off because is all the time active.
Screen On In Pocket
My phone doesn't arrive until tomorrow so I have no report but, I am wondering if anyone has noticed accidental screen on in pocket or seen a setting to prevent. Older Galaxy phones had a setting to prevent this which relied on proximity sensor.
bsam55 said:
My phone doesn't arrive until tomorrow so I have no report but, I am wondering if anyone has noticed accidental screen on in pocket or seen a setting to prevent. Older Galaxy phones had a setting to prevent this which relied on proximity sensor.
Click to expand...
Click to collapse
Accidental touch is still an option on the S10, i have mine enabled but it never turns AOD off. It doesn't work like before. I'm hoping they can fix this as its getting on my nerves that I have to keep disabling AOD when leaving in my bag else it'll stay on wasting battery for nothing.
Sent from my [device_name] using XDA-Developers Legacy app
So basically if I use a wallet folio case then then AOD doesnt turn off when I close the cover?
What would be causing this?
Sent from my SM-G975U using Tapatalk
Limeybastard said:
So basically if I use a wallet folio case then then AOD doesnt turn off when I close the cover?
What would be causing this?
Click to expand...
Click to collapse
Probably need to be connected with proximity sensor but this time is under the screen who knows.
I just ran the Samsung inbuilt test *#0#* , there is no test under Sensors for the proximity sensor for this model, if I'm not mistaken other Galaxy devices did have this specific sub test under Sensors test menu
Sent from my SM-G975U using Tapatalk

Serious practical problem lock screen

Strange thing is happening recent to me...
Namely, while using headphones while talking on the phone, the unit gets unlocked while in pocket and problems arise with spontaneous keys getting activated.
If even cannot be explicitly locked by pressing the power button.
Have not found a solution to this problem, and it's strange why the proximity sensor does not work in pocket.
Cannot remember whether this was previously, or is it since last ROM upgrade.
Anyone having same problem?
tomsag said:
Strange thing is happening recent to me...
Namely, while using headphones while talking on the phone, the unit gets unlocked while in pocket and problems arise with spontaneous keys getting activated.
If even cannot be explicitly locked by pressing the power button.
Have not found a solution to this problem, and it's strange why the proximity sensor does not work in pocket.
Cannot remember whether this was previously, or is it since last ROM upgrade.
Anyone having same problem?
Click to expand...
Click to collapse
Yep I have the same thing... Today my pocket took 9599295 pictures and movies.. also when I'm a bit sweat my pocket dial random numbers. I've noticed that when screen is touched and disnt recognize fingerprint then whole lockscreen shows up and its easy way to random open dial or camera... Its rly anoying, because I dont want to hide phone screen outside of the skin. (Its easier to break screen if I hit something with my leg.)
Dunno why it doesnt use proximity sensor to recognize that phone is in the pocket like every other brand... :/
Do you have the double tap to wake up activated?
I had this problem a while ago and it was the double tap that played all kinds of tricks calling emergency and taking pictures in my pocket! Disable double tap to wake up screen and the problem goes away.
Disable the fingerprint icon on when the screen if off.
Gokh said:
Disable the fingerprint icon on when the screen if off.
Click to expand...
Click to collapse
Tried everything but the problem is eventually still there. Actually I've found a bug, namely the display will wake up once touched several times near the center of the fingerprint reader. Try it yourself.
Not nice - cannot avoid to happen it sometimes even if all options are disabled.
tomsag said:
Tried everything but the problem is eventually still there. Actually I've found a bug, namely the display will wake up once touched several times near the center of the fingerprint reader. Try it yourself.
Not nice - cannot avoid to happen it sometimes even if all options are disabled.
Click to expand...
Click to collapse
I didn't have this problem. If I try now and touch the part with the scanner, doesn’t have to be just the centre of the scanner, rapidly around ten times the lock screen will turn on, but nothing happens when I touch the shortcuts. Perhaps they are disabled, so the only thing that happens if the scanner is touched again is that the numpad to unlock with pin appears.
This is not good as it may severely affect battery life if it happens a lot. This clearly must be a bug!
gerhard_wa said:
I didn't have this problem. If I try now and touch the part with the scanner, doesn’t have to be just the centre of the scanner, rapidly around ten times the lock screen will turn on, but nothing happens when I touch the shortcuts. Perhaps they are disabled, so the only thing that happens if the scanner is touched again is that the numpad to unlock with pin appears.
This is not good as it may severely affect battery life if it happens a lot. This clearly must be a bug!
Click to expand...
Click to collapse
Even worse, since it is happening all the time while on a call via BT and my phone is in the pocket. I am now thinking about to switch over to my old MI8...
Cannot understand why the keyboard is not disabled in the pocket. Seems so easy to do it but it's as it seems on.
tomsag said:
Even worse, since it is happening all the time while on a call via BT and my phone is in the pocket. I am now thinking about to switch over to my old MI8...
Cannot understand why the keyboard is not disabled in the pocket. Seems so easy to do it but it's as it seems on.
Click to expand...
Click to collapse
My only solution was to buy a flip case. At first, I disabled the fingerprint reader by removing all fingerprints and setting up face recognition, but this didn’t fix the problem you are talking about. I don’t really like flip cases, but the Nillkin QIN Smartcase is rather good.
So now I ‘m eagerly awaiting a fix from Xiaomi so I can strip the Mi9 again!
Gokh said:
Disable the fingerprint icon on when the screen if off.
Click to expand...
Click to collapse
Where can the fingerprint icon be disabled? Thank's.
j4dotcc said:
Where can the fingerprint icon be disabled? Thank's.
Click to expand...
Click to collapse
Disabling the fingerprint icon has no effect on the problem we are talking about here. The only way to make the problem go away is to remove all the stored fingerprints thus disabling the use of fingerprints all together. This will shut off the fingerprint sensor doing away with this problem in a crude way.
If you really are looking for a setting, please use the search function at the top of the settings.
gerhard_wa said:
Disabling the fingerprint icon has no effect on the problem we are talking about here. The only way to make the problem go away is to remove all the stored fingerprints thus disabling the use of fingerprints all together. This will shut off the fingerprint sensor doing away with this problem in a crude way.
If you really are looking for a setting, please use the search function at the top of the settings.
Click to expand...
Click to collapse
Thanks for the prompt reply. I don't have the problem and just wanted to know where I can disable the fingerprint icon. Thanks again.
New uppdate out that include Pocket Mode. MIUI-V10.2.27.0PFAEUXM EEA version.

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