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fingerprint while display is off

I noticed that I can unlock the redmi k20 pro while the display is off. if I hit the fingerprint spot, the screen glows green on the corresponding area and it unlocks. (really conviniend)
Is this a 7th gen sensor feature, or do more phones have it? Or is it simply software?
A friends op 6t needs the display to be on for the fingerprint sensor to start checking, so I got curious.
Edit:
I mean under display fingerprints.

On pocof1 fingerprint reader was also always on , on my k20pro it also always on. when i had lineage installed on poco then you had to wake the screen to unlock so i think it software thing to have it always running in background

ef1x said:
On pocof1 fingerprint reader was also always on , on my k20pro it also always on. when i had lineage installed on poco then you had to wake the screen to unlock so i think it software thing to have it always running in background
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Yeah, normal capacitive fingerprints should always work while the display is off, I was wondering about under display ones.

Also i saw option to enable like aod but with fingerprint reader that it always shows on locked screen

Pocket mode issue

I have a Mi 9T Pro with MIUI 11.0.3.0 Since I updated, I have problem with pocket mode. When I wanna unlock my phone with fingerprint scanner on turned off screen (It's important), I usually get the "Don't cover the earphone area" message for 2 sec, and after this disappears. Today I realised that It happens every time when I turn off the screeen in a lighter place or room, and after unlock in a dark or darker place. Can somebody check this problem on his/her own phone? I'm interested in about this is my own problem or It's a MIUI 11 issue.
There aren't any TG or screen protector on the phone.

I have the same problem. To bypass i have disable pocket mode from ambient display setting. Hop xiaomi fixes it

Turn off pocket mode in Redmi K20 Pro/ Xiaomi Mi 9T Pro
1) Go to Setting
2) Scroll and search for keyword *Always-on display and lock screen*
3) In this section scroll down until you find pocket mode..turn it off.
It works for me..try it

It happens of you are in a dark room and too close to the earpiece with you body or objects (to me it happens a lot in the bed since I like to stay under the sheets)

Proximity Sensor Issue REDMI K20 PRO

i Bought new REDMi K20 Pro i think the proximity sensor is not working whenever i pickup a call my screen doesn't going off ive done CIT test in CIT proximity senson Value showing 5.0 and do not increase or decrease it stuck on 5.0 value
my screen has screen protector is this problem related with the screen (i do not want to remove it coz it cost me a lot)
if anyone haveing the same issue Please help to get rid of this problem it is very annoying

Amoled Screen white flash

Hello, when I unlock my phone the screen sometimes flashes White for 0.5 second. Is it problem with my device or it is common? Mi 9t pro

Do you use the fingerprint unlock?

Yes, but it happens even I just turn it on with button

Hey, mi9t pro here (2020 jan. bought). I have exactly the same issue. 1 out of like 10 or 20 unlocks the screen flashes for a split second. Haven't found a solution since then :/

I see a white flash using YouTube when switch from portrait mode to landscape mode.
Last MIUI eu developer

Lock Screen APK Android 10

Hi guys,
my girlfriend's got a p30 pro (android 10).
She uses the unlock feature with face recognition.
Once the face gets recognized by the phone, the screen unlocks completely.
On my note 8 (android 9) I use the same feature, but once the face gets recognized, I have to sweep over the screen to unlock the phone.
I don't loke that!
So my question is, is it possible to use the same lock screen on my phone?
Where can I find the apk file?
If not, which lock screen works similar to the p30 pro lock screen?
Thanks!

adamlee2012 said:
Samsung should have a option like the P30 pro. Look under facial recognition
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Thanks, that's it