Questions tagged [fingerprint]

Use this tag for questions related to fingerprints, like fingerprint lock or fingerprint scanner.

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What consumes more power?(Fingerprint vs doubletap to wakeup)

Due to past experiences with power buttons im trying to almost not touch the power button(sidekey) except left with no option. So between these two alternatives of waking up a phone( using a ...
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  • 111
1 vote
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59 views

Suspicious data usage by apps

Here are a list of apps that I found on my phone: Now all of these apps seem to be preinstalled as they aren't device administrators and are impossible to disable or uninstall. They all seem to be ...
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Can we get any data from fingerprint? [duplicate]

Is it possible to get a hash from a fingerprint reading such that it proves the identity of a user on my app and such that I can export the hash? By export I mean to put it on a document as proof of ...
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1 answer
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Can we get single time access to in-display fingerprint photos in android?

I am trying to access the fingerprint photo access from the in-display fingerprint sensor for a specific use case. Is it possible to do so?
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5 votes
1 answer
685 views

Backup app's fingerprint data and restore

I have one app on my device locked with fingerprints. I want to back up this app, delete it, and restore it again without a need to log in again. So it should work again with fingerprint without any ...
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2 votes
0 answers
65 views

Repeating error on logcat: "FingerGoodix: Useless INT"

I have a problem with a fingerprint scanner. It doesn't work no matter what firmware I use. I flashed different fixes but it didn't help. I captured a log and found these repetitive lines: 02-10 14:23:...
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2 votes
0 answers
60 views

Is the fingerprint template generated by the vendor-specific library or the sensor?

My understanding based on the online resources is that there is a vendor-specific fingerprint library running in the TEE which is responsible for communicating to the fingerprint sensor hardware as ...
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  • 21
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2 answers
252 views

How does Whatsapp use my mobile fingerprint in their app?

How does Whatsapp access my fingerprint? WhatsApp did not ask permission to use my fingerprint. Then how do they use my fingerprint for unlocking?
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2 votes
1 answer
1k views

Un-register service from hwservicemanager

I have disabled the fingerprint sensor on my phone by setting the device tree node status to disabled. When I boot up, the fingerprint menu options are gone, but dmesg shows that hwservicemanager is ...
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  • 21
1 vote
1 answer
114 views

Fingerprint lost phone unlocking ability – where to troubleshoot?

Recently, fingerprint sensor on my Note8 lost phone unlocking ability. How can I troubleshoot this? Once the phone is unlocked, it still works normally: it... identifies already registered fingers (...
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  • 217
0 votes
1 answer
196 views

Always require PIN to unlock device

Is there any way to always require the user to enter the PIN (instead of fingerprint) to unlock the device? It seems that as soon as you add a fingerprint to the phone, now it no longer requires the ...
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1 vote
0 answers
264 views

Fingerprint sensor on Nexus 6P stopped working

As I was using my Nexus 6P phone today, the fingerprint sensor was working just fine. However, just a few hours ago today, it stopped working, and I can no longer unlock my device using the ...
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3 votes
0 answers
145 views

Fingerprint sensor on Samsung Galaxy Wide 2

My phone, Galaxy Wide 2 (SM-J727S) is a device made for students in South Korea, and it blocks internet, wifi, mobile data, and stuff like that (maybe an irrelevant information, but anyway). This "...
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4 votes
3 answers
53k views

An error has occurred with the fingerprint sensor

Shortly ago, my J7 Prime stopped recognizing my fingerprint. When I go to Settings -> Lock screen and security -> Fingerprint Scanner I get An error has occurred with the fingerprint sensor. If ...
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1 vote
0 answers
43 views

How to setup a finger specific app launch?

On my ZTE Axon 7 I had four fingers configured to start specific apps when the corresponding finger was pressed. That was very practical to be able to start an app like Evernote directly. On that ...
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1 vote
3 answers
658 views

Why does fingerprint sensor not work when phone is charging?

I often face this issue. The fingeprint sensor does not work and sometimes the touch also misbehaves when phone is charging. Why does this happen and how to fix this? I experienced this issue with ...
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2 votes
0 answers
3k views

Unlock with fingerprint instead of PIN after Device reboot or Device Locked by admin

Android has a security feature that requires the user to input PIN/Pattern/Password if the device was locked by an app using the Device Administrator permission or when the device is restarted. ...
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  • 95
3 votes
1 answer
545 views

Can I use my android phone as finger print, webcam, and mic for my windows 10PC?

I suppose I can buy a mic, a webcam, and a finger print censor for my windows 10. But I have all those in android phone already. Is there an easy way to do so?
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0 answers
121 views

Disabling vibration when fingerprint authentication fails

I'm running Android Nougat 7.0 on a Wiko upulse lite phone. I would like to know whether there is a way to disable the vibration that is produced when fingerprint authentication fails. I ask because I ...
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0 answers
931 views

Is there a way to disable fingerprint reader on OnePlus 5T?

I'm using a OnePlus 5T, which is running Android 8.1. Since the face-unlock works perfectly, I don't need the fingerprint reader much. In addition, I often touch the reader accidentally and the phone ...
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5 votes
2 answers
3k views

How often does Android 8.1 ask for a password instead of a fingerprint? [duplicate]

I use fingerprint to unlock my phone (Nokia 6 TA1033, upgraded to Oreo 8.1, not rooted). Sometimes it doesn't let me use fingerprint and asks for a password instead "for better security". I can't ...
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1 vote
1 answer
755 views

How to make Magisk request permission/fingerprint every time for certain apps?

I'm on Magisk v16 and I have a terminal app. I want it to require the user to use fingerprint every time this certain app requests root access. How do I do this?
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2 votes
0 answers
48 views

Disable fingerprint fail sound

When I accidentally touch fingerprint sensor when phone is locked, it emits a beep sound, meaning that scanning failed. Can I disable this annoying sound? I have a Huawei P10 with Android 7 OS.
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  • 121
6 votes
1 answer
10k views

Allow fingerprint unlock but require password after a certain time limit

Currently with a Samsung Galaxy S8, but I believe this is common to other devices, I can setup fingerprint unlock which requires a password when the device starts up or if I fail to scan my finger ...
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  • 61
2 votes
0 answers
105 views

How to unlock glitching fingerprint service forcing me wait for 30 minutes?

Samsung Galaxy S7 fingerpring is glitching: if my finger is wet or dusty, it is trying to detect this case and provide special processing for it. Unfortunately, it can't detect this well and this ...
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  • 539
1 vote
0 answers
219 views

Fingerprint unlock and password multiple-attempt security

I have noticed that fingerprint unlocking on Android is pretty insecure. If you make 5 failed attempts (which is quite a lot), the phone just disables the scanner for 30 seconds and then re-enables it....
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1 vote
2 answers
98 views

Is a PIN reducing the security of a fingerprint based encryption?

Many smartphones and programs are using fingerprint's to secure the phone or encrypt data. In many cases, those programs want a PIN as backup authentification method. A PIN just got 10000 possible ...
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  • 13
0 votes
1 answer
672 views

How to set up fingerprint unlock on Honor 6A?

Could please someone name the exact checkboxes I need (not) to tick on Honor 6A to have it unlock with my fingerprint? Fingerprint is configured and recognized in the settings, but the phone keeps ...
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  • 103
0 votes
0 answers
664 views

Disable wake on fingerprint sensor

I've spent a lot of time editing /system/usr/keylayout/Generic.kl in trials to disable waking on sensor touch. What I've learned is that MENU and SLEEP "buttons", when assigned to key 353 (which is my ...
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0 votes
1 answer
834 views

Forgot alternative password for encrypted & fingerprint-protected Samsung Galaxy S5: how to reset it?

So I have an encrypted Samsung Galaxy S5 with Android 6.0 and set fingerprints for its lockscreen (fingerprint is set as lockscreen-type for the setting device encryption). Now it seems like I forgot ...
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-1 votes
1 answer
1k views

How to reset mobile fingerprint

How to reset mobile fingerprint? Mobile Model : Lenovo vibe P1
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  • 113
0 votes
0 answers
172 views

Xposed, disable pattern required on boot

On my phone, a Nexus 6p, rooted and obviously has Xposed, it asks for my pattern after every single boot, and I can't use my fingerprint. This is extremely annoying, and I dgaf about security. The ...
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1 vote
0 answers
24 views

Can I use Android Biometric to Authenticate 20+ Users

Is it possible to use a centralized biometric database with Android or am I limited to users having to create and register their fingerprints on the device lock-screen on each Android device? I have ...
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2 votes
0 answers
404 views

Nougat: force to enter PIN and disable fingerprint every hour or every 10th time

Is it possible to set Android 7 Nougat to ask for the PIN every hour or every 10th time, when using fingerprint to unlock a phone? The fingerprint unlocking is very convenient, but it seems not that ...
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-1 votes
1 answer
9k views

Xiaomi 3s prime not able to read finger print on app lock

Phone: xiaomi 3s prime with android 6 and Miui 8. I use finger print lock for apps. When open such a apps, screen shows " couldn't read finger print. Please enter your pattern" But i forgot my ...
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1 vote
2 answers
3k views

Does Google have a record of my fingerprints from the Android devices?

My phone has a fingerprint scanner. I notice on the Google Play Store, it has the option to verify your identity with a fingerprint scan instead of typing in the password when making a purchase. Does ...
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  • 1,755
0 votes
0 answers
185 views

Can I use full disk encryption and unlock it with fingerprint on Android 6.0?

I would love to encrypt my phone. But I would only do it if I can unlock it after boot using my fingerprint.
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  • 309
1 vote
1 answer
549 views

Unlock by fingerprint only

When I initially set up my phone, I had to both choose a pattern and scan my fingerprint, for providing maximal security. Now, when I want to unlock my phone, I can choose, whether I want to do that ...
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4 votes
2 answers
13k views

Where does Android store fingerprint data?

I am looking for the files that correspond to the recorded fingerprints on my Nexus 6P and a way to "reset" the fingerprint system. Something similar to how Android stores lock screen settings (...
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0 votes
0 answers
130 views

Possible to quickly expire a fingerprint?

Let's say I wanted to quickly prevent my fingerprint from unlocking my phone; so that the next time the lock screen shows, a password is required. Is there a way to expire the fingerprint unlock ...
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2 votes
3 answers
16k views

LG G5 - Fingerprint Scanner gone

I have an issue with the LG G5. I bought it like 3 weeks ago and used it very carefully. Now just while using the fingerprint scanner went away. it said restart the phone. After restart even the ...
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0 votes
1 answer
2k views

Apps to lock screen asks for password after locking

I have a Moto G4 Plus, with fingerprint scanner fingerprint reader that is able to unlock(physical button) the phone by just giving the fingerprint, no password is required. I'm trying to implement a "...
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11 votes
2 answers
14k views

Completely disable the fingerprint sensor

I don't really like all the hype about the fingerprint sensor, I'd rather like to have it killed down, so that it doesn't register any fingerprints. On a desktop Linux I'd simply modprobe -r the ...
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  • 259
1 vote
2 answers
3k views

How do I disable|reset the fingerprint scanner on the nexus 6p?

It doesn't work properly since I restored my twrp backup from my old 6p (this one is a replacement). I'd like to remove the fingerprints so I can reset the whole thing, how can I do that? When I turn ...
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1 vote
1 answer
4k views

How can I limit the number of fingerprint attempts before fallback to other login type?

I've got a Nexus 6P and would like to reduce the number of allowed failures before it blocks fingerprint as an allowed login mechanism - according to https://support.google.com/nexus/answer/6285273 ...
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  • 163
4 votes
0 answers
1k views

"Fingerprint hardware not available" after TWRP restore

A couple months ago I had to get a replacement for my Nexus 6P, so I did a full TWRP backup, copied it onto the new phone, and did a restore (note that I had to rename the backup folder so that TWRP ...
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  • 278
10 votes
6 answers
701 views

How can I require my Android (latest version) phone to require BOTH a fingerprint and a password?

Setting up one or the other is easy, but I can't seem to activate both at once. Before anyone asks, my primary reason for wanting to do this is security.
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  • 292
0 votes
1 answer
506 views

No fingerprint reader after adding self signed certificate

Cyanogen OS 12.1 running on a ZUK z1. I added a self signed CA certificate to the "trusted credentials". Since then android doesn't allow me to use the fingerprint scanner to unlock the screen anymore....
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16 votes
3 answers
11k views

Can I make Android require Fingerprint + PIN to unlock the screen?

I have a Galaxy S5 with a fingerprint reader. I'd like to be able to unlock my phone with a PIN or pattern unlock, but I also want to protect myself from shoulder-surfing. Is there a way to require ...
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12 votes
2 answers
7k views

Why is fingerprint lock considered less secure than pattern lock on Nexus 5X?

My Nexus 5X highly recommends to set up pattern lock in addition to fingerprint lock, and the pattern is asked upon every reboot. And my password manager (KP2A) recommends to use fingerprint unlock ...
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