Iris Scanner "randomly" on - Samsung Galaxy Note 8 Questions and Answers

Hi
I'm not using Iris Scanner to unlock my phone. Anyway I noticed the IR Led turning on kinda randomly on my phone.
If my screen is locked and I press power button to get to lock screen, IR led turns on. After I unlock my phone using fingerprint or pattern, IR led goes off.
Now if I do random stuff on my phone (open apps, and just play around phone) IR led will turn on/off without me getting any idea what's that behavior based on.
It's it supposed to do that? What's the point flashing IR led if it's not even used for anything?
If any of you have any information about this, please feel free to educate me/others.
Thank you.

Related

Any way to use Ambient display without turning on touchscreen?

As stated above. I have had it turned off since the first week. I keep the phone in my pocket and it will keep waking up, unlocking, and doing things including dialing people.
Maybe I have someone living in my pocket.
Any mod out there? Would like to use the feature again. In the mean time I have been using the led mod.
Ambient display uses the PROXIMITY SENSOR to decide if it should actually turn on. It will not turn on in your pocket.
doitright said:
Ambient display uses the PROXIMITY SENSOR to decide if it should actually turn on. It will not turn on in your pocket.[/QUOTE
I know but it still turns on. I do not know if maybe it happens in pockets with white lining or something. I kept getting pocket dials or on a website. Whatever always happens if I have it on.
Click to expand...
Click to collapse
if the conditions are met for the accelerometer to open the ambient mode screen then it will turn on for a split second before the proximity turns it off. I tested this by using an app that make the phone vibrate whenever the screen is turned off (Gravity screen) and putting a piece of opaque tape over the proximity sensor. Moving the phone to trigger ambient mode caused the phone to vibrate meaning there was a split second where you could theoretically interact with the phone which would cause it to fully wake up and the proximity sensor doesn't cause the phone to turn the screen off unless you're in a call.
Coincidentally Gravity screen does allow you to make your phone sleep using the proximity detector so it can also turn the screen off for you regardless of what is on the screen at any given time. Meaning it'll turn off the screen even if you or your butt is interacting with the screen. And it has settings for pocket angles or apps and whatnot to disable it so you don't lose your screen while watching a video or something.
See. I new there was a way. Thanks!

Can you disable the fingerprint sensor?

I hit the fingerprint sensor every time I take it out or put it in my pocket and that triggers the screen to turn on.
I don't really need the sensor, but I haven't seen a way to disable it in any of the settings?
I would like to the same thing, I dont really need the sensor active
Settings; lock screen & password; screen lock & fingerprint. You'll turn off your fingerprint reader and lock screen from here. Be sure all your fingerprints are deleted.
There are no method to turn off the fingerprint sensor at the moment, the above method just remove the fingerprint but screen would still be turn on when press on sensor, which is an issue for me also.
If this is really bothering you, stick a sticker on top xD
sticker? that's what I was thinking of.

Fingerprint scanner too fast!!

I'm finding it quite difficult to turn on the screen of my XZ1C without unlocking the phone...
Sometimes I just want to look at the lock screen without the phone unlocking, but the fingerprint scanner reacts so quickly that the lock screen (along with any notifications) is gone before I've even read the time!!
Is there a way to set a delay (probably not) or set another button (vol? camera?) to wake up the screen without unlocking the phone? I'd rather not have to disable the fingerprint scanner, and I never had this issue with my Z5C.
Seriously?
People complaining about the fp-scanner being too fast nowadays?
As for solutions, you could always use a finger where you haven't stored the print.
Or use your fingernail to press the button.
4rz0 said:
Seriously?
People complaining about the fp-scanner being too fast nowadays?
As for solutions, you could always use a finger where you haven't stored the print.
Or use your fingernail to press the button.
Click to expand...
Click to collapse
That's what I'm doing - it's a bit awkward! On the Z5C there was just enough time to remove your finger before the phone unlocked so you could have a quick glance at the screen. It must use more battery to fully wake up the phone everytime the power button is pressed?
I guess "tap to wake" would have been another solution to my (admittedly small) problem.
Oh, come on now. Fast fingerprint scanner is a good thing. There shouldn't be such thing as too fast. I would simply "reserve" my middle fingers for checking the lock screen.
Even if I use the "wrong" finger, the lockscreen bounces to the left because it's tried reading the fingerprint which is also annoying when all I want to do is check the time and for any notifications!
a novel approach i just set up: when scanning your thumb, only scan the pad and not the tip. then you can use the pad to unlock and the tip to check the lock screen.
(doesn't fix the problem of the bounce tho)
Use this app: https://play.google.com/store/apps/details?id=com.jarsilio.android.waveup
Just wave your hand over the proximity sensor and the screen will turn on but won't unlock the phone if you have a lock.
Don't enable the lock screen functionality though, it doesn't support fingerprint unlock.
Lol why don't u just use a another finger?
Dany XP said:
Lol why don't u just use a another finger?
Click to expand...
Click to collapse
See post #5...
hbkid said:
I'm finding it quite difficult to turn on the screen of my XZ1C without unlocking the phone...
Sometimes I just want to look at the lock screen without the phone unlocking, but the fingerprint scanner reacts so quickly that the lock screen (along with any notifications) is gone before I've even read the time!!
Is there a way to set a delay (probably not) or set another button (vol? camera?) to wake up the screen without unlocking the phone? I'd rather not have to disable the fingerprint scanner, and I never had this issue with my Z5C.
Click to expand...
Click to collapse
look on the Play Store for Power Button to Volume Button by TeliApp, the app is old but still works and will allow you to use the volume down button as a second screen on button. it reverts back to being a normal volume down button once the screen is on. no root required. (I would post a link but XDA won't let me because I'm a new user)

Unable to unlock the screen - black screen, face recognition and fingerprint reader n

Hello, for some time I have a problem with unlocking the phone after pressing the button to turn on the phone, the screen does not light up every time the fingerprint sensor does not appear on the screen, face unlock also does not work. the unlocking sound is heard but the screen stays black, the phone also began to heat around the bixby button. The phone is on the original rom and was purchased in the USA and im from Poland . I can't go into recovery because the screen is also black I did hard reset from settings nothing help. If anyone has any idea what I can do, please help.

Side fingerprint reader activation

Hello,
I moved to 1 II from XZp and then from X and as I always used the side fingerprint power button, I am bothered by the way the phone wakes and unlocks just by touching the sensor.
On the previous phones it always required to press the power button to wake up and I prefer it that way, to prevent accidental unlocks just by holding the device.
Does anyone know of a way to change that behavior?
Use a different finger for scanning, e.g. you use your thumb to press a button. You may switch to using your index finger for scanning.
I have found that the fingerprint scanner is dead when I try to activate it straight from wireless charging - no idea if this is due to an update as I only have the phone a couple of weeks - anyone else have this issue, the FP scanner works flawlessly when it is activated and is very responsive - just after charging it doesn't work

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