Lock phone with fingerprint scanner - Xiaomi Mi A1 Questions & Answers

Hi, my power button is not working well, so I thought if there is a way to lock or turn off the screen touching the fingerprint scanner? I have root.

Koujaku said:
Hi, my power button is not working well, so I thought if there is a way to lock or turn off the screen touching the fingerprint scanner? I have root.
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Just use screen Lock Pro...

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Fingerprint Sensor Only Works When Phone Is Manually Locked?

Would appreciate some thoughts on this:
I like using an app to lock my phone, and I have this one installed:
https://play.google.com/store/apps/details?id=com.iglint.android.screenlock
It locks the screen, but I notice that the Nexus 6p will not allow me to wake the phone via the fingerprint sensor.
If I use the app to lock the screen, and then use the fingerprint sensor, the phone prompts me to enter my pin.
If I use the power button to lock the screen, the fingerprint sensor works as intended.
Thoughts?
My thoughts would be that this app has not been updated to include fingerprint sensors to be able to unlock.
Once it does that, I assume it would work.
Either that or only an official method of locking the screen can allow your fingerprint to unlock.
mcnoggin said:
Would appreciate some thoughts on this:
I like using an app to lock my phone, and I have this one installed:
https://play.google.com/store/apps/details?id=com.iglint.android.screenlock
It locks the screen, but I notice that the Nexus 6p will not allow me to wake the phone via the fingerprint sensor.
If I use the app to lock the screen, and then use the fingerprint sensor, the phone prompts me to enter my pin.
If I use the power button to lock the screen, the fingerprint sensor works as intended.
Thoughts?
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Screen Off and Lock Apps break Nexus Imprint
By Gekko2, Senior Member on 10-30-2015, 07:17 AM
http://forum.xda-developers.com/nexus-6p/help/screen-off-lock-apps-break-nexus-imprint-t3236785
i would love to be able to turn the screen off and lock with the fingerprint scanner. hence - we would never have to touch the power button.

Lock screen widget with fingerprint scan

I have tried with many lock screen widget/applications and screen is locked but can not open with fingerprint scan, only unlock with pin code. Is there any widget/application that will be working with fingerprint, to unlock the screen, thanks.
If i understand it right you want fingerprint unlock but with some widget on your lock screen ? If that so you can't because finger print sensor is mounted in power button not screen itself so basicly what you want is impossible. ?
If i understood you correctly
Powered by LG G6

display only on and off by fingerprint sensor

Hello.
is there an app or can I adjust the fingerprint sensor so that only to turn on and off the display works without the lock function to activate?
So no pin - password query
- only on and off without smartlock
is there another way to turn the display on and off without using the power button - without the lock function
Thanks
preuss65 said:
Hello.
is there an app or can I adjust the fingerprint sensor so that only to turn on and off the display works without the lock function to activate?
So no pin - password query
- only on and off without smartlock
is there another way to turn the display on and off without using the power button - without the lock function
Thanks
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...like on my previous Motorola moto g5 plus. It's great feature. Let me know if you find something.

Fingerprint sensor glitch?

A couple of times since I've had the 6T, when I tapped the screen to bring up the ambient display or lock screen the fingerprint sensor wouldn't be active. The fingerprint icon would be white and putting a finger on it did nothing. The first time it happened, I was using the single tap to ambient display. When the fingerprint sensor didn't work, I hit the power button to bring up the lock screen and the sensor activated and I was able to unlock using a fingerprint.
I've switched to using double tap to lock screen with both face & fingerprint unlock. Tonight when I tapped the screen the lock screen came up but again the fingerprint icon was white, not active, and face unlock didn't even work. I had to swipe up to unlock with my PIN. After doing so, both fingerprint & face unlock have worked as normal.
Any ideas on why this could be happening? Just a random software glitch? Or does device security require unlocking with a PIN/Password/Pattern after so many fingerprint/face unlocks or after a given amount of time?
yes, it happened to me as well.
but i dont think this is a bug/glitch. This happened to me on other android phones as well.
i think this is a security thing where your fingerprint sensor/ face id is disabled once in a while and you can only sign in with your pin/password.

Oneplus 6t new major fingerprint security flaw

The OnePlus 6T's fingerprint sensor can easily be bypassed with this trick. . We have confirmed it working on two phones so far. Phone Unlocks itself via camera and voice from Lock screen, plz some one report..
Please confirm that the phone cannot see your face when you unlock it, and no Smart Lock trigger was active.
This alleged problem does not exist on my phone.
https://www.youtube.com/watch?v=sxz3FXNobhw
veatesia said:
Please confirm that the phone cannot see your face when you unlock it, and no Smart Lock trigger was active.
This alleged problem does not exist on my phone.
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No i turned off face unlock , it just unlocks itself, just open the camera from lockscreen then close the camera app,
no , i turned off face unlock, it unlocks itself from launching camera from lockscreen thn closing the camera app, it bypasses all security locks " fingerprint , pins and face unlock"
We shall wait for others to check. I couldn't reproduce the error at all.
Do not have this problem with mine, are you sure you don't have your left thumb registered?
ExjeetzZ said:
Do not have this problem with mine, are you sure you don't have your left thumb registered?
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Bro, i asked my friend to unlock it unlocked just like that.... he just opend the camera app from lockscreen and closed , try in Navigation gesture mode...
can't reproduce
Yeah I can't reproduce this error either.
Sent from my ONEPLUS A6013 using Tapatalk
Either way if this is true. you should be reporting it to OnePlus. Not telling everyone on XDA how to break into someone elses 6T
sivji said:
The OnePlus 6T's fingerprint sensor can easily be bypassed with this trick. . We have confirmed it working on two phones so far. Phone Unlocks itself via camera and voice from Lock screen, plz some one report..
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So if I'm hearing you right, you're saying that by opening the camera from the lockscreen and then pressing your home button, your phone unlocks? Doesn't do that for me, it prompts me for my PIN or fingerprint when I press the home button. Can't reproduce this either... Might reinstall OOS? I'm at a loss for advice on this one.
I can reproduce this. I use navigation gestures, so opening the camera from the lockscreen and then just close it with the right (or left) swipe gesture to go back and you're in the phone. I don't think it has anything to do with the fingerprint sensor.
Edit: now I can't reproduce it anymore strange.. [emoji848]
I'm not able to reproduce this either. Switched to navigation gestures. Turned off face unlock. Launched camera from lock screen. Swipe from side to go back took me to lock screen with fp prompt only, no keypad for PIN. Tried again, this time swiping from middle to go home. I get fp prompt & keypad for PIN. However, with this screen the camera stays open and viewable through the lockscreen, but phone is still locked.
After a few tries I see my home screen but it's only a flash then it's back to my lock screen. It looks like it may want to but maybe I'm doing it wrong. Either way, this looks important enough to report to OP and see what's what.
sharksfan7 said:
I'm not able to reproduce this either. Switched to navigation gestures. Turned off face unlock. Launched camera from lock screen. Swipe from side to go back took me to lock screen with fp prompt only, no keypad for PIN. Tried again, this time swiping from middle to go home. I get fp prompt & keypad for PIN. However, with this screen the camera stays open and viewable through the lockscreen, but phone is still locked.
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5 out of 10 times it unlocks, checked with 2 other friends mobile, it happens in all the 3 gesture's
sivji said:
The OnePlus 6T's fingerprint sensor can easily be bypassed with this trick. . We have confirmed it working on two phones so far. Phone Unlocks itself via camera and voice from Lock screen, plz some one report..
Click to expand...
Click to collapse
-1
Tilted phone so it can't capture my face and tried as you've said - running camera and voice commands from lockscreen and phone is still locked, cannot bypass..
So there are two vartiants.
1) Phone still recognizes your face
2) Enabled smart unlock? so phone knows that you are in home and automatically unlocks device.
sharksfan7 said:
I'm not able to reproduce this either. Switched to navigation gestures. Turned off face unlock. Launched camera from lock screen. Swipe from side to go back took me to lock screen with fp prompt only, no keypad for PIN. Tried again, this time swiping from middle to go home. I get fp prompt & keypad for PIN. However, with this screen the camera stays open and viewable through the lockscreen, but phone is still locked.
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meciu99 said:
-1
Tilted phone so it can't capture my face and tried as you've said - running camera and voice commands from lockscreen and phone is still locked, cannot bypass..
So there are two vartiants.
1) Phone still recognizes your face
2) Enabled smart unlock? so phone knows that you are in home and automatically unlocks device.
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Nope, i unlocked my friends mobile @ my home...
You sure you have a pin/fp/pattern set up at all?
I've been trying for 5 minutes with gestures and it always just either asks me for a pin or sends me back to the lock screen.
Seems odd but maybe post it on the OP forums instead of here, won't get them to fix it if they aren't aware of it...
Nope. Unable to reproduce.

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