After Power ON, MUST use Knock Code first instead of fingerprint? - LG V20 Questions & Answers

Anyone else seeing this behavior? On my 995, whenever I restart, or power on my phone.. I have to use the Knock Code to get into my phone, and it says "fingerprints unavailable for use" or something to that effect.
I find this odd behavior.

Its not odd behavior its LG behavior.
Unfortunately there's no way around it.

turn off secure startup in security...

Your fingerprint is encrypted and you phone can't access encrypted data until you unlock it after a reboot. So its kinda a catch 22 where you will always have to unlock with a pin after startup instead of fingerprint. Your fingerprint is biometric data and obviously can't be changed so it needs to more secure on your phone than your pin which you can change. It is this way on most phones with fingerprint readers.

Double0EK said:
Its not odd behavior its LG behavior.
Unfortunately there's no way around it.
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Click to collapse
It's not just LG, my Samsung S7 and Note 7 both required pin code on first log in after a reboot/boot up
It's part of Android now.

nest75068 said:
It's not just LG, my Samsung S7 and Note 7 both required pin code on first log in after a reboot/boot up
It's part of Android now.
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Click to collapse
It's not even Android. My work phone is an iPhone and it has the same behavior. Which drives me nuts because our work phones require us to change pin codes every couple of months and we can't recycle codes.

I turned off secure startup as I don't need kids messing with my phone and I imagine after ten attempts if wipes it?

reaverclan said:
I turned off secure startup as I don't need kids messing with my phone and I imagine after ten attempts if wipes it?
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Click to collapse
30 attempts for secure boot

If I'm right, the op is taking about setting the fingerprint to unlock but it still requires the pattern. You will notice this if you use a third party app or launcher to lock screen. E.g. Nova launcher double tap to lock screen. It will tell you fingerprint is unavailable.
A work around to this is to doubly tap the top part of the screen (the bar where the date and signal strength is).
This will allow you to unlock with fingerprint.
If you use the stock lg launcher then double tapping anywhere on screen shows you to unlock using fingerprint.

koppee1 said:
If I'm right, the op is taking about setting the fingerprint to unlock but it still requires the pattern. You will notice this if you use a third party app or launcher to lock screen. E.g. Nova launcher double tap to lock screen. It will tell you fingerprint is unavailable.
A work around to this is to doubly tap the top part of the screen (the bar where the date and signal strength is).
This will allow you to unlock with fingerprint.
If you use the stock lg launcher then double tapping anywhere on screen shows you to unlock using fingerprint.
Click to expand...
Click to collapse
I'm working with a developer of Screen Lock Pro to try and find a workaround for this. Currently his app will work on Android 5 and 6 by delaying the lock for 5-10 seconds but it's currently not working on Android 7 on LG (it is working on Pixel and Nexus devices).

Hmmm... Not sure I understand this behavior. My fingerprint is much more complex than a 4-digit code that can eventually be brute-forced (phone wipe or not - in theory I mean).. so why wouldn't my fingerprint be the top-most factor in unlocking the phone? I mean.. say I'm one of those guys that uses his last four of an SSN like an idiot, and someone knows that about me.. boom, they're in my phone. Do iPhones do this for real (as stated above)?

CHH2 said:
It's not even Android. My work phone is an iPhone and it has the same behavior. Which drives me nuts because our work phones require us to change pin codes every couple of months and we can't recycle codes.
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Click to collapse
Interesting. I wonder what type of MDM Solution your company is running...

dbornack said:
Hmmm... Not sure I understand this behavior. My fingerprint is much more complex than a 4-digit code that can eventually be brute-forced (phone wipe or not - in theory I mean).. so why wouldn't my fingerprint be the top-most factor in unlocking the phone? I mean.. say I'm one of those guys that uses his last four of an SSN like an idiot, and someone knows that about me.. boom, they're in my phone. Do iPhones do this for real (as stated above)?
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Click to collapse
Yup, every time I restart my iPhone, it asks for my pin number and the finger print reader is inoperable. Even when I don't restart my iPhone for a while, it will occasionally lock out the reader and require a pin to wake.
rudbwoy said:
Interesting. I wonder what type of MDM Solution your company is running...
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Click to collapse
Had to figure out where in the menus to dig through to find out who it is. (I seriously do not like how Apple sets their phones up.) Looks like it is AWMDM.

CHH2 said:
Had to figure out where in the menus to dig through to find out who it is. (I seriously do not like how Apple sets their phones up.) Looks like it is AWMDM.
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Click to collapse
Airwatch, by VMware. MDM....aka you're being watched...

rudbwoy said:
Airwatch, by VMware. MDM....aka you're being watched...
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I always assume as much. Not really a bother for me. The iPhone is a work phone that I don't like carrying or touching. My personal phone is always my go to for anything unless it is work related.

I have this on my nexus 6p also. When ever i reboot the phone it requires me to use my pattern to unlock. It's a "feature" of sorts. Not going to go into my thoughts as to why but i think i may understand why they did that.

In case anyone is wondering, a few conditions that force you to use backup method are being left alone (with no smart locks enabled or active) for 4 hours, a reboot, and a failed scan 5 times in a row.
The reboot case is due to encrypted data (no matter what you do, your phone is encrypted on boot, unless you fix that, however, you phone will still treat it as such). The only reason I can imagine for the time out is in case a ninja chops off your fingers in your sleep. As for the wrong input, that seems annoying sure, but odds are if you got the fingerprint wrong 5 times in a row, it's not you.

Yeah v10 does this as well on fresh boot ups.
I'm not sure I understand the reason behind it I would think it would be less secure this way.
Sent from my LG-H901 using XDA-Developers mobile app

Vuciz said:
In case anyone is wondering, a few conditions that force you to use backup method are being left alone (with no smart locks enabled or active) for 4 hours, a reboot, and a failed scan 5 times in a row.
The reboot case is due to encrypted data (no matter what you do, your phone is encrypted on boot, unless you fix that, however, you phone will still treat it as such). The only reason I can imagine for the time out is in case a ninja chops off your fingers in your sleep. As for the wrong input, that seems annoying sure, but odds are if you got the fingerprint wrong 5 times in a row, it's not you.
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Click to collapse
I'm not sure I'm following as to why encryption matters. Are you saying my fingerprint data is encrypted? If so, why isn't my PIN also encrypted?

Speaking of fingerprints has anyone run into the issue where the phone "forgets" your print? I have had this happen at random times and while the fingerprint data is still saved the phone fails to recognize my finger so I have to set it up again.
Sent from my LG-H901 using XDA-Developers mobile app

Related

[Q] Security PIN turning to password and locking me out

This issue has been addressed and no actual cause has been determined.
My pin lock pad which I usually use is replaced by a keyboard for no reason and my pin doesn't work anymore.
it keeps asking me for a password and after every 5 attempts I get a 30 seconds countdown.
To add insult to injury trying to restart the computer boots me into download mode.
It's very frustrating to say the least. Fortunately I have a twrp backup that I can restore but it's such a waste of time.
Has anyone else had this happen to them?
mrnovanova said:
This issue has been addressed and no actual cause has been determined.
My pin lock pad which I usually use is replaced by a keyboard for no reason and my pin doesn't work anymore.
it keeps asking me for a password and after every 5 attempts I get a 30 seconds countdown.
To add insult to injury trying to restart the computer boots me into download mode.
It's very frustrating to say the least. Fortunately I have a twrp backup that I can restore but it's such a waste of time.
Has anyone else had this happen to them?
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Click to collapse
Not happening to me. but anyone who knows how to deal with this. So, just in case happened to us, we know what to do.
hemander said:
Not happening to me. but anyone who knows how to deal with this. So, just in case happened to us, we know what to do.
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Useless posts just to raise your post count are all over this forum, seriously if you cant offer anything remotely helpful why post at all? Also put your tongue back in!
OP can you extrapolate how to arrive at the issue and also please state device model, device status etc?
Are you using an application to set/unset your PIN?
I had this happening to me repeatedly, however it was accepting my PIN as the password so was more just annoying that anything else.
After some experimenting I found that it was Secure Settings (setting the PIN) that seemed to be the cause - somehow it was setting the PIN correctly the first time it ran and then subsequently it would switch to password.
I ditched it and instead setup my set/unset PIN via Pebble Locker (also using Wifi and other bluetooth devices to set/unset PIN).
After using it for a few days successfully, it locked once setting a password instead of PIN, and this time my usual PIN failed to unlock it. Luckily it was about 11pm and I knew that it would automatically unlock at about 7am the next day when the wifi was automatically switched back on - so I didn't need to reset or anything (although I got the impression at the time that you could unlock it via going to your google account somehow - but I can't recall the details and may have this entirely wrong).
I setup a Tasker profile so that I'd have a backdoor to disable the PIN by plugging it into power and checking if I'm at home at the time. Not the most secure solution, but hardly wide open either.
I'm having the same issue and it also appears to be a quirk with Secure Settings. Actually locked me out of my phone yesterday, had to return home where I had task to unlock phone in order to get back in.
NinjaBuzz said:
I'm having the same issue and it also appears to be a quirk with Secure Settings. Actually locked me out of my phone yesterday, had to return home where I had task to unlock phone in order to get back in.
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Click to collapse
I've had this exact issue with Secure Settings

T-Mobile s7 edge: why can't I use ONLY fingerprints to unlock my phone?

OK, I found one issue that might actually make me return the phone if this is the case.
I set my fingerprints to unlock my phone, but it says additional security is needed when I use fingerprints, so it's making me input a pin EVERY time I use my fingerprint to unlock. Wtf? This didn't happen on my s6. I can't figure out how to turn this off.
brian85 said:
OK, I found one issue that might actually make me return the phone if this is the case.
I set my fingerprints to unlock my phone, but it says additional security is needed when I use fingerprints, so it's making me input a pin EVERY time I use my fingerprint to unlock. Wtf? This didn't happen on my s6. I can't figure out how to turn this off.
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Mine only makes me put in my pin the first time I unlock after powering on. I don't like it but it's not too much of a bother. Not sure of the reasoning behind it. Yours is every time?
Xileforce said:
Mine only makes me put in my pin the first time I unlock after powering on. I don't like it but it's not too much of a bother. Not sure of the reasoning behind it. Yours is every time?
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Click to collapse
Yep, every time. Do you have a T-Mobile version?
brian85 said:
Yep, every time. Do you have a T-Mobile version?
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Click to collapse
Yes. Have u tried a reboot?
Yep, just did.
Found the problem.
I'm using Nova launcher and I use the double tap screen to lock the device. When I double tap to lock it and then wake it back up, it makes me use my fingerprint and pin. If I lock it with just the power button then it unlocks with just my fingerprint. Didn't have this issue on my s6. Weird.
I have same problem with s6 after update to 6.0.1
it was after reboot not every single time.
That's the change Google made to Android. It's not a Samsung "feature." The Nexus 5X has that too and it bugs me once in a while.
Sent from my SM-G925P using Tapatalk
What's the point in having finger print reader for security if you have to enter a pin anyway? Makes no sense to me. It would be much quicker to use pin only! What a useless feature.
As mentioned above, this is a change to Android. When restarting the device, it asks you enter your pin manually. I don't mind it, since I seldom restart my phone anyway.
Sent from my Nexus 6P using Tapatalk
Even iphones make you enter a pin upon restart. But only after a restart.
Don't see a problem with entering a pin once when you restart.
I restart my phone maybe once a week. This is a complete non-issue.
Agreed
Sent from my XT1585 using Tapatalk
Has anyone else noticed how sh*ty the fingerprint scanner is? It only works half of the time for me which is annoying. I have a Nexus 6P so I'm used to it being a seamless transition to unlock the phone. I've resetup my fingers a few times now but it's annoying how it doesn't register sometimes.
Sent from my Nexus 6P using XDA Labs
Ah, if it's only required every restart, this is not an issue for me
Pilz said:
Has anyone else noticed how sh*ty the fingerprint scanner is? It only works half of the time for me which is annoying. I have a Nexus 6P so I'm used to it being a seamless transition to unlock the phone. I've resetup my fingers a few times now but it's annoying how it doesn't register sometimes.
Sent from my Nexus 6P using XDA Labs
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Click to collapse
Christ, you really do have a hangup on this thing.
I specifically asked to try out the fingerprint scanner in the Samsung store on Sunday and, once I set it up, I spent a number of minutes locking and unlocking it using the scanner. I did this because my previous experience with Samsung's fingerprint scanner was on the S5 and that was poor. On the S7 I didn't have a single issue, not one unlock failure. Perhaps you have a faulty device?
Beefheart said:
Christ, you really do have a hangup on this thing.
I specifically asked to try out the fingerprint scanner in the Samsung store on Sunday and, once I set it up, I spent a number of minutes locking and unlocking it using the scanner. I did this because my previous experience with Samsung's fingerprint scanner was on the S5 and that was poor. On the S7 I didn't have a single issue, not one unlock failure. Perhaps you have a faulty device?
Click to expand...
Click to collapse
Don't get me wrong I still like the phone, but there are several rather interesting issues I've noticed. My 6P isn't without issues either, but it happens.
I could have a defective unit; I'll have to use it more before I see if it continues. The S7E usually says place your finger on the scanner and 'wipe' which doesn't make sense because it's a touch sensor not one like the S5 had. Either way Google certainly has the best FP scanner so far until someone else makes one that's as fast and accurate.
Sent from my Nexus 6P using XDA Labs
My S7e fingerprint scanner is working great, no problems.
The device asks for the unlock code only after reboot, as previously stated. Any other time the unlock number pad shows up, my fingerprint bypasses it. Why does the unlock number pad show up sometimes? Because I sometimes turn on the screen with the power button and immediately swipe the screen before I touch the home button sensor. But if I turn the screen on with the home button, and leave my finger on it for a split second, it unlocks flawlessly.
Pilz said:
Don't get me wrong I still like the phone, but there are several rather interesting issues I've noticed. My 6P isn't without issues either, but it happens.
I could have a defective unit; I'll have to use it more before I see if it continues. The S7E usually says place your finger on the scanner and 'wipe' which doesn't make sense because it's a touch sensor not one like the S5 had. Either way Google certainly has the best FP scanner so far until someone else makes one that's as fast and accurate.
Sent from my Nexus 6P using XDA Labs
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Click to collapse
You definitely do not need to swipe on the S7 Edge. That went away with the S5 reader. If you have the phone in a case, then your finger may be hitting the scanner in a way that it can't read it completely. Although I have yet to run into it with the S7 Edge, I had it all the time with my Note 5, and I fixed it by enrolling the same finger twice. Make sure to contact the sensor from all kinds of weird angles on the second run and you'll be fine.
Pilz said:
Has anyone else noticed how sh*ty the fingerprint scanner is? It only works half of the time for me which is annoying. I have a Nexus 6P so I'm used to it being a seamless transition to unlock the phone. I've resetup my fingers a few times now but it's annoying how it doesn't register sometimes.
Sent from my Nexus 6P using XDA Labs
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Click to collapse
Haven't had it mess up once. Seems a little faster than the s6 even which was pretty much instant for me. On s6 I found adding a second fingerprint of the same finger improved accuracy if I was having problems though.

Lock screen won't stay set

My lock screen won't stay set to a unlock method. I have changed the unlock to patternpattern, pass code, and fingerprint. After a little while it goes back to just swipe. Even though, I'll go to the setting and it'll say it's still set to whatever method I have it set to. But for whatever reason the actual lock screen goes back to swipe. Also when it does work, the fingerprint reader is hit and miss. I'll have fingerprint and password or code and then the fingerprint reader won't even recognize I'm trying to use it. Anyone else having similar issues or know of a fix?
tyoder87 said:
My lock screen won't stay set to a unlock method. I have changed the unlock to patternpattern, pass code, and fingerprint. After a little while it goes back to just swipe. Even though, I'll go to the setting and it'll say it's still set to whatever method I have it set to. But for whatever reason the actual lock screen goes back to swipe. Also when it does work, the fingerprint reader is hit and miss. I'll have fingerprint and password or code and then the fingerprint reader won't even recognize I'm trying to use it. Anyone else having similar issues or know of a fix?
Click to expand...
Click to collapse
It actually is staying what you set it at.
Samsung as usual has set up some stupid defaults for this phone.
Go here and set it to Instantly and it will work as you expect.
Settings > Quick Settings > Lock screen and security > Secure lock settings > Secure lock time > Instantly with the power key or when the screen times out
With those settings every time you unlock your phone you will need whatever security you set.
With the default settings Samsung has it so your phone will only lock if you do not touch the phone for 10 minutes..... real secure there Samsung...
As for the fingerprint reader, when you set it up hold the phone like you would be unlocking it and use every part of the finger during the setup process.
I added both thumbs and index fingers using the tip, flats, and sides of each during the setup process.
If for some reason it does not want to read still, you can set up the same finger multiple times, do one as just the flat, one as the sides, one as the tip.
Milimbar said:
It actually is staying what you set it at.
Samsung as usual has set up some stupid defaults for this phone.
Go here and set it to Instantly and it will work as you expect.
Settings > Quick Settings > Lock screen and security > Secure lock settings > Secure lock time > Instantly with the power key or when the screen times out
With those settings every time you unlock your phone you will need whatever security you set.
With the default settings Samsung has it so your phone will only lock if you do not touch the phone for 10 minutes..... real secure there Samsung...
As for the fingerprint reader, when you set it up hold the phone like you would be unlocking it and use every part of the finger during the setup process.
I added both thumbs and index fingers using the tip, flats, and sides of each during the setup process.
If for some reason it does not want to read still, you can set up the same finger multiple times, do one as just the flat, one as the sides, one as the tip.
Click to expand...
Click to collapse
That's exactly how everything is set up on my device though. I have it set to lock immediately and did all angles of my fingers. Still won't keep the lock screen set and won't read the fingerprints. It doesn't give me a does not match message or anything. At least when that happens, I know it's trying to read my finger.
tyoder87 said:
That's exactly how everything is set up on my device though. I have it set to lock immediately and did all angles of my fingers. Still won't keep the lock screen set and won't read the fingerprints. It doesn't give me a does not match message or anything. At least when that happens, I know it's trying to read my finger.
Click to expand...
Click to collapse
In that case I do not know.
You could try a factory reset, but I do not know if that will help.
If mine did that I would be returning it for a replacement.
Also make sure settings/lock screen/secure lock/smart lock isn't set to anything that's trusted.
Smart lock leaves the phone in swipe unlock if it recognizes your phone is at your home..or hook up to your Bluetooth, etc.
tyoder87 said:
That's exactly how everything is set up on my device though. I have it set to lock immediately and did all angles of my fingers. Still won't keep the lock screen set and won't read the fingerprints. It doesn't give me a does not match message or anything. At least when that happens, I know it's trying to read my finger.
Click to expand...
Click to collapse
So after digging around some more, I found out what was happening. I have a Moto 360 paired to my phone. I had it as a trusted device and that's what was allowing me to do swipe while still having the lock screen set to something else. However, my fingerprint reader is still acting up. It's still not even trying to read my fingerprints.
tyoder87 said:
My lock screen won't stay set to a unlock method. I have changed the unlock to patternpattern, pass code, and fingerprint. After a little while it goes back to just swipe. Even though, I'll go to the setting and it'll say it's still set to whatever method I have it set to. But for whatever reason the actual lock screen goes back to swipe. Also when it does work, the fingerprint reader is hit and miss. I'll have fingerprint and password or code and then the fingerprint reader won't even recognize I'm trying to use it. Anyone else having similar issues or know of a fix?
Click to expand...
Click to collapse
Go to settings and search smart lock... It shows that if you ate home the screen stays unlock but if u leave anywhere it'll lock..you can turn the location off when. You get into smart lock
The same thing is happening with mine (SM-G935A AT&T). However, when I go to the secure lock settings, it keeps changing from lock instantly to the maximum setting (which shows as 34 minutes and 7 seconds). Smart Lock has been completely disabled by system administrator (I get my corporate email on my phone). Every time I go in and change the secure lock to instant, it reverts back within the next 30 minutes.
[email protected] said:
The same thing is happening with mine (SM-G935A AT&T). However, when I go to the secure lock settings, it keeps changing from lock instantly to the maximum setting (which shows as 34 minutes and 7 seconds). Smart Lock has been completely disabled by system administrator (I get my corporate email on my phone). Every time I go in and change the secure lock to instant, it reverts back within the next 30 minutes.
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Click to collapse
Mine is doing the same thing automatically changes to 34 min and 7 seconds secured lock time without me changing it from instantly w power key so frustrating
[email protected] said:
Mine is doing the same thing automatically changes to 34 min and 7 seconds secured lock time without me changing it from instantly w power key so frustrating
Click to expand...
Click to collapse
If you don't mind me asking, what device administrators do you have setup? Currently I have my company exchange policy, Lookout Mobile, AT&T Protect Plus and Android as registered administrators. I'm starting to wonder if its the combination of services like maybe the Protect Plus and Lookout.
[email protected] said:
If you don't mind me asking, what device administrators do you have setup? Currently I have my company exchange policy, Lookout Mobile, AT&T Protect Plus and Android as registered administrators. I'm starting to wonder if its the combination of services like maybe the Protect Plus and Lookout.
Click to expand...
Click to collapse
Hi! Lookout, email and Android device manager are all administrators I think in personal settings
[email protected] said:
Hi! Lookout, email and Android device manager are all administrators I think in personal settings
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Click to collapse
I figured out the issue, at least for me. First I tried to disable both Lookout and ATT Protect Plus as device administrators but still the lock setting would revert to 34 minutes and 7 seconds. In my account settings for my corporate email, there was a link for all security policies. Sure enough, the screen lock policy showed as 2047 seconds which translates to 34 minutes and 7 seconds. I cannot change the option as that is the corporate policy set by the server.
This is an issue with Samsung s7 including the edge. Mine was playing up from the day I got it. I took it into carphone warehouse assuming it was a setting and the guy serving me basically said to send it back. I eventually got a refund from Samsung (it was painful) and then I stupidly bought another one of these overpriced, over hyped pieces of **** from John Lewis instead. I've always used windows (mobile (i.e. what I'd call old android and what XDA was made for) and then windows phone and briefly windows 10 mobile. From my short experience of using the so called best android phone I have to say gimmicks aside, the features both phones share, windows destroys android, emails, documents, ease of use, fluidity, user experience....oh and a working lock screen. Not happy and it's my own fault, I fell for mass marketing and believing the hype.
I think I found the answer
tyoder87 said:
My lock screen won't stay set to a unlock method. I have changed the unlock to patternpattern, pass code, and fingerprint. After a little while it goes back to just swipe. Even though, I'll go to the setting and it'll say it's still set to whatever method I have it set to. But for whatever reason the actual lock screen goes back to swipe. Also when it does work, the fingerprint reader is hit and miss. I'll have fingerprint and password or code and then the fingerprint reader won't even recognize I'm trying to use it. Anyone else having similar issues or know of a fix?
Click to expand...
Click to collapse
If you have a device like a Bluetooth paired with your s7 edge, make sure that smart lock isn't on. Once I changed that that setting, it stays locked.
Can you describe how to find this page (that showed 2047 seconds)? I want to see if my company IT will change this.
Hi I have s7 edge, here's the problem is I cannot touch the screen, already do hard reset and rebooting still the screen cannot touch. I could not unlock my s7 edge.
Thanks for the help
Originally Posted by Milimbar It actually is staying what you set it at. Samsung as usual has set up some stupid defaults for this phone. Go here and set it to Instantly and it will work as you expect. Settings > Quick Settings > Lock screen and security > Secure lock settings > Secure lock time > Instantly with the power key or when the screen times out With those settings every time you unlock your phone you will need whatever security you set. With the default settings Samsung has it so your phone will only lock if you do not touch the phone for 10 minutes..... real secure there Samsung... As for the fingerprint reader, when you set it up hold the phone like you would be unlocking it and use every part of the finger during the setup process. I added both thumbs and index fingers using the tip, flats, and sides of each during the setup process. If for some reason it does not want to read still, you can set up the same finger multiple times, do one as just the flat, one as the sides, one as the tip.
From:shawnthall15
Thank you for the tip it really helped me fix the lock on my new samsung galaxy amp prime!!!!
Restart your phone
tyoder87 said:
My lock screen won't stay set to a unlock method. I have changed the unlock to patternpattern, pass code, and fingerprint. After a little while it goes back to just swipe. Even though, I'll go to the setting and it'll say it's still set to whatever method I have it set to. But for whatever reason the actual lock screen goes back to swipe. Also when it does work, the fingerprint reader is hit and miss. I'll have fingerprint and password or code and then the fingerprint reader won't even recognize I'm trying to use it. Anyone else having similar issues or know of a fix?
Click to expand...
Click to collapse
I made sure i made my password effective immediately (it was set to 5 seconds) after you lock your phone and it didn't work.
Then I realized that I didn't restart my phone yet.
Lock screen was effective immediately after I restarted my phone. Solved my case!
Fixed
Its quite simple, it is smart as samsung has made s7/edge to recognize you and let your phone stay unlock whenever it is around you. Once, it has been unclocked by you, you dont have to set in the passcode each time to look at your phone. But dont worry, it will revert back to lock mode once it noticed that you'v set it aside on a surface i.e leaving it. Should you want to make your phone locked at all time whenever you want it, simply change the setting as follows: Setting > Lock screen and security > Secure lock settings > Smart lock > (enter your pin) > On-body detection > set it to off. Whallaaa!! Problem solved.
---------- Post added at 06:01 AM ---------- Previous post was at 05:55 AM ----------
tyoder87 said:
My lock screen won't stay set to a unlock method. I have changed the unlock to patternpattern, pass code, and fingerprint. After a little while it goes back to just swipe. Even though, I'll go to the setting and it'll say it's still set to whatever method I have it set to. But for whatever reason the actual lock screen goes back to swipe. Also when it does work, the fingerprint reader is hit and miss. I'll have fingerprint and password or code and then the fingerprint reader won't even recognize I'm trying to use it. Anyone else having similar issues or know of a fix?
Click to expand...
Click to collapse
Its quite simple, it is smart as samsung has made s7/edge to recognize you and let your phone stay unlock whenever it is around you. Once, it has been unclocked by you, you dont have to set in the passcode each time. But dont worry, it will revert back to lock mode once it noticed that you'v set it aside on a surface i.e leaving it. Should you want to make your phone locked at all time whenever you want it, simply change the setting as follows: Setting > Lock screen and security > Secure lock settings > Smart lock > (enter your pin) > On-body detection > set it to off. Whallaaa!! Problem solved.
Go to settings/lock screen and security/other security settings/trust agents and turn off Google Smart lock option.
You are back to instant phone lock.
Cheers🖒

Lock Security Not Working

Is there anyone experiencing that no matter what lock I use, my phone always allows me to just swipe up once to unlock? I tried facial unlock & that works flawlessly, but I also added the secondary pattern and I still swipe up once and my phone just unlocks completely. I also disabled facial recognition with just primary pattern or number lock as the security and the phone still opens right up like no security is on it at all.
Anyone have a solution for this or does this seem like another bug for a future update?
Settings>Display>Navigation Bar>"Unlock with home button" - is this enabled or in any way related to what you're experiencing? Just a guess
james.chiocchio said:
Settings>Display>Navigation Bar>"Unlock with home button" - is this enabled or in any way related to what you're experiencing? Just a guess
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I just took a look and that option is off. the kick screen doesn't skip. I have to swipe up Everytime...let's me right in
Do you allow Smart Lock on a network or attached device? What you're describing is the phone's behavior when connected to a Smart Lock approved device.
BarryH_GEG said:
Do you allow Smart Lock on a network or attached device? What you're describing is the phone's behavior when connected to a Smart Lock approved device.
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I do, my Huawei watch
Swiissjokr said:
I do, my Huawei watch
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That's what is doing it. I had my Asus Zenwatch 2 listed as a trusted device in Smart Lock and my phone was doing the same thing. I removed all trusted devices and now I have to use my pin, finger print or irises to unlock my phone.
Sent from my wickedly kewl Galaxy S8 using my fingers. Duh!!!
It is set to not turn on the lock when the screen goes off for 10 minutes by default. You have to go I to lock screen, secure lock settings
Sent from my SM-G950U using Tapatalk
truckerdewd said:
That's what is doing it. I had my Asus Zenwatch 2 listed as a trusted device in Smart Lock and my phone was doing the same thing. I removed all trusted devices and now I have to use my pin, finger print or irises to unlock my phone.
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I removed it from trusted devices and now I'm back to normal thank you
Swiissjokr said:
I removed it from trusted devices and now I'm back to normal thank you
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Welcome
Sent from my wickedly kewl Galaxy S8 using my fingers. Duh!!!
So it's this a bug? Trusted devices should unlock only when phone is connected or in vicinity to them.
Also seeing this same behaviour. My home wifi is a trusted device and obviously it unlocks when I'm connected to it, but now for the second time I've been away from home for over 2 hours and it happily unlocks with just swipe. It only asks for biometrics if I reboot the phone. So it seems that there's a bug in trusted sources whereby it believes its still connected to wifi for some time after you disconnect!
I had to disable my trusted place (home) even though I was 100km away to fix the issue.
Lock Security not Working
It may also be the On-Body Detection is set to ON under the Smart Lock feature
The way I fixed mine after reading all of these posts was Settings>Lock Screen and Security>Secure Lock Settings>(Enter Pin or whatever security option you have enabled)>Secured Lock Time>, then add the diode to the first selection, "Instantly with the power key or when the screen times out." Then it prompted my security feature everytime the phone locked. When adding a timeout period if you lock with the lock button for some reason it thinks you did it by choice (owner) and figures you will open it without the need to input security feature. I have everything mentioned above off so, I was baffled as to why it didn't prompt my pin option. Now timeout or self lock (by owner) it prompts pin all the time. Hope this helps.
Note 8
Mine has the same issue. but i dont have any trusted devices. i think its a bug in the software. It only asks for pin or iris scan after a couple of minutes being locked otherwise i can just swipe and it unlocks which is ****.
Don't do hard resets, login to the samsung account, go to find my mobile, then unlock your phone from there, it will delete the password. It will tell you to use a pin for access to samsung and the phone etc. Add the pin into the phone, then unlock the phone when you're on the phone screen. This will wipe off the passcode, this is so your settings don't keep restarting (happened to my note 8). Next part is to clear credentials in the settings and reset settings. None your data, apps will be affected, just the theme and basic security stuff. Now you can finally reset your pattern to however to you want it to be. As good as gold! Hope this helps.
Thanks a lot. I finally figured out what the issue was. My On-Body-Detection in the Smart Lock settings was On.
Just go to Setting -->Lock Screen and Security --> Smart Lock. Deactivate all the options there.
I have a Moto E4 and I have a secondary pattern up and everytime I swipe up it unlocks it instead of making me put in the pattern

Screen Lock Problem - Randomly Stops Requiring Passcode/Iris/Fingerprint

After a couple days of using my phone without a reboot I notice that it stops requiring unlock credentials such as my pin, iris or fingerprint. I will be able to swipe to unlock the phone and the security is completely removed.
Has anyone else noticed this? If I reboot the phone the security goes back to normal.
The only app I have that I think could cause this is BxAction to remap my bixby button to google now.
Under settings > security > smart lock there are options for keeping your phone unlocked in certain situations, e.g. in trusted places or when connected to a particular bluetooth, check to see if nothing is enabled there, and usually it locks after a reboot like you listed
Stupid question: have you enabled face recognition?
Did you set your screen lock to happen immediately or is it delayed?
kash20 said:
Under settings > security > smart lock there are options for keeping your phone unlocked in certain situations, e.g. in trusted places or when connected to a particular bluetooth, check to see if nothing is enabled there, and usually it locks after a reboot like you listed
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pete4k said:
Stupid question: have you enabled face recognition?
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SeanForester said:
Did you set your screen lock to happen immediately or is it delayed?
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Ok so I uninstalled bxactions to see if it was causing the problem. It appears it was not the culprit.
I currently have my phone setup to use iris, fingerprint and pin. It will work normally for approx one day.
Then all of a sudden it doesn't require my credentials to unlock. I have smart lock setup to not require credentials when connected to BT in my truck and when at the GPS location of my house. I'm currently sitting at work and it's swiping to unlock without reading my iris or fingerprint.
My lock delay is 5 seconds and auto when I press the lock button.
If I reset the phone it starts working normally again.
Now that I think about it I have a feeling its something to do with smart lock thinking I'm either still at home or that I'm still in my truck.
I'm having the same exact problem and I have the same exact setup as you! It started doing this a couple days ago. I have Smart Lock set to keep the phone unlocked when I'm at home (GPS coordinates) and when connected to bluetooth in my car. I got to school yesterday and noticed the phone wasn't requiring my irises or fingerprint anymore. I let it be for a little while to see if it would correct by itself and it didn't. I restarted the phone and that fixed it but it did it again this morning! It seems as though Smart Lock isn't registering I'm not at home or in my car. This is huge security flaw.
volfan22 said:
I'm having the same exact problem and I have the same exact setup as you! It started doing this a couple days ago. I have Smart Lock set to keep the phone unlocked when I'm at home (GPS coordinates) and when connected to bluetooth in my car. I got to school yesterday and noticed the phone wasn't requiring my irises or fingerprint anymore. I let it be for a little while to see if it would correct by itself and it didn't. I restarted the phone and that fixed it but it did it again this morning! It seems as though Smart Lock isn't registering I'm not at home or in my car. This is huge security flaw.
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If others are having this issue then I agree as well this is a huge issue.
I just went home on my lunch break and the screen lock is still working normally. I connected to my truck when I was on my way home. I didnt pay attention if it was requiring any type of unlock when I was home.
nadrojcote said:
If others are having this issue then I agree as well this is a huge issue.
I just went home on my lunch break and the screen lock is still working normally. I connected to my truck when I was on my way home. I didnt pay attention if it was requiring any type of unlock when I was home.
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Do you have On body detection turned on by chance? That may be your issue. Located in smart lock settings.
Outbreak444 said:
Do you have On body detection turned on by chance? That may be your issue. Located in smart lock settings.
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No the only smart lock options I have enabled are bt in my truck and GPS at home.
Outbreak444 said:
Do you have On body detection turned on by chance? That may be your issue. Located in smart lock settings.
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I don't have that setting checked either. Just bt for car and gps for house. Not a huge deal for me personally because I'm pretty much always around people I trust but this really is a huge security flaw if it is happening to a lot of people.
Are you looking at the screen when swiping the lock screen? The iris recognition is actually very fast and you only see the alignment screen if it cannot immediately read your iris.
Outbreak444 said:
Do you have On body detection turned on by chance? That may be your issue. Located in smart lock settings.
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OCedHrt said:
Are you looking at the screen when swiping the lock screen? The iris recognition is actually very fast and you only see the alignment screen if it cannot immediately read your iris.
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No I purposely pointed it away from my face to test this.
I haven't had it happen since the day after creating this post. I wonder if some Samsung apps were updating over night and causing the issue.
I added a post about this two days ago in this forum area. Try turning off finger gestures from advanced settings
Sent from my SM-G950W using Tapatalk
Bedeadu said:
I added a post about this two days ago in this forum area. Try turning off finger gestures from advanced settings
Sent from my SM-G950W using Tapatalk
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Weird how they would be linked. I did notice that my fingure print gestures stopped working the other day too. I turned the setting off and back on and it started working.
After several days of the phone working properly when I traveled out of town, it is doing this again. I am at school, which is not a location I am using for trust locations, and the phone is staying unlocked. This is honestly pretty ridiculous and needs to be addressed. The only thing I can think is that I am connected to the same wifi network at my apartment (campus housing that is off campus) and while on campus. Maybe the phone is thinking I'm still in the same location since the wifi networks are the same?
Bedeadu said:
I added a post about this two days ago in this forum area. Try turning off finger gestures from advanced settings
Sent from my SM-G950W using Tapatalk
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I just tried this as my screen lock isn't currently not working.it didn't make a difference having gestures turned on or off. I tried turning wifi and GPS on and off as well. Only way to get it to work again is reboot.

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