Database Users

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.
Click to expand...
Click to collapse
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?
Click to expand...
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
Click to expand...
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
Click to expand...
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.

After Power ON, MUST use Knock Code first instead of fingerprint?

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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Click to collapse
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.
Click to expand...
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

First unlock requires PIN - how to change

After 7.1.1 update, Axon 7 requires PIN after reboot and unlocking phone. Is it possible to turn this function off, to unlock with fingerprint every time?
thanks for answers

BurakSefaSenturk said:
After 7.1.1 update, Axon 7 requires PIN after reboot and unlocking phone. Is it possible to turn this function off, to unlock with fingerprint every time?
thanks for answers
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Click to collapse
I don't think that can be turned off. It's a 'security feature'.
But if there is a way to firm that off, I'd like to know as well.

There is a way. Here's screen shots.
Go to security, screen lock, pattern or pin (whatever you're using) it'll ask for you pin or pattern, then select no thanks

tolymatev said:
There is a way. Here's screen shots.
Go to security, screen lock, pattern or pin (whatever you're using) it'll ask for you pin or pattern, then select no thanks
Click to expand...
Click to collapse
That's not the same thing...even if you select no thanks, you will still have to enter your pin on reboot. It was the same on the Nexus 6P. I have always selected no thanks and have always had to enter a pin on reboot. I believe it's a Nougat feature that can't be disabled.

Hola
If you use a third party ROM like Resurrection Remix, the feature you are looking for is available. I actually have it configured like this on my phone.
"So what you want me to do 'bout that?"

Howie Dub said:
That's not the same thing...even if you select no thanks, you will still have to enter your pin on reboot. It was the same on the Nexus 6P. I have always selected no thanks and have always had to enter a pin on reboot. I believe it's a Nougat feature that can't be disabled.
Click to expand...
Click to collapse
Oh now i see what you're talking about. If you select yes Android won't even start without a pin or pattern. If you select no Android will start but will require pattern or pin for 1st unlock.
Sorry for misleading you guys.

Why does my OP5 occasionally want my pin?

Running the standard OS - no unlocking at all.
My OP5 is set up for face unlock and fingerprint unlock. No issues there and both work OK. But every so often, I am asked for my PIN number “for additional security”.
Anyone know why and whether I can stop this happening?
Cheers
Alan

alan sh said:
Running the standard OS - no unlocking at all.
My OP5 is set up for face unlock and fingerprint unlock. No issues there and both work OK. But every so often, I am asked for my PIN number “for additional security”.
Anyone know why and whether I can stop this happening?
Cheers
Alan
Click to expand...
Click to collapse
If for instance, the finger print sensor keeps activating incorrectly in your pocket, it will stop those attempts and make you use another method, e.g. Pin.

I have the standard flip cover - so it shouldn't activate.
Alan

It's a security feature. Makes you remember your pin and makes sure you are the owner of the device who knows the pin code.

I think its because op5 reboots sometimes automatically. Its random.

OK- thanks. [But mine doesn't reboot occasionally unless I ask it]

alan sh said:
OK- thanks. [But mine doesn't reboot occasionally unless I ask it]
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Click to collapse
Stock Android asks for a pin every 72 hours of uptime.

NaterTots said:
Stock Android asks for a pin every 72 hours of uptime.
Click to expand...
Click to collapse
Ah, thank you. That makes sense.
Alan

Google Pay Always Requires Fingerprint

Since day one with my 6T, I have had an issue with Google Pay. When making a purchase using Google Pay, my first attempt requires me to enter a pin or scan my fingerprint (even if I unlock my phone prior to tapping to pay). When I scan my fingerprint or enter my pin, Google Pay tells me there was an error and I need to get again. When I tap to pay again, it goes through without a problem.
I have read that smart unlock may cause this issue so I disabled that but it didn't work.
I tried rebooting in safe mode but that didn't help.
Not rooted. Bootloader still locked. I did convert from T-Mobile to international and the issue persists.
I would appreciate any help. It is very annoying.

mokash34 said:
Since day one with my 6T, I have had an issue with Google Pay. When making a purchase using Google Pay, my first attempt requires me to enter a pin or scan my fingerprint (even if I unlock my phone prior to tapping to pay). When I scan my fingerprint or enter my pin, Google Pay tells me there was an error and I need to get again. When I tap to pay again, it goes through without a problem.
I have read that smart unlock may cause this issue so I disabled that but it didn't work.
I tried rebooting in safe mode but that didn't help.
Not rooted. Bootloader still locked. I did convert from T-Mobile to international and the issue persists.
I would appreciate any help. It is very annoying.
Click to expand...
Click to collapse
Idk since I don't use pay.. but have your tried clearing data and cache for the app and then rebooting and setting up again

mokash34 said:
Since day one with my 6T, I have had an issue with Google Pay. When making a purchase using Google Pay, my first attempt requires me to enter a pin or scan my fingerprint (even if I unlock my phone prior to tapping to pay). When I scan my fingerprint or enter my pin, Google Pay tells me there was an error and I need to get again. When I tap to pay again, it goes through without a problem.
I have read that smart unlock may cause this issue so I disabled that but it didn't work.
I tried rebooting in safe mode but that didn't help.
Not rooted. Bootloader still locked. I did convert from T-Mobile to international and the issue persists.
I would appreciate any help. It is very annoying.
Click to expand...
Click to collapse
I am having the same issue. Annoying.
Sent from my ONEPLUS A6013 using Tapatalk

toolhas4degrees said:
Idk since I don't use pay.. but have your tried clearing data and cache for the app and then rebooting and setting up again
Click to expand...
Click to collapse
Yes, I have tried that. It doesn't work. Thanks for the suggestion.

Do you have face unlock set up?
Google Pay doesn't work for me if my phone unlocked with my face. PIN or Print to unlock and it goes through first time.
Sent from my OnePlus 6T using Tapatalk

creator2456 said:
Do you have face unlock set up?
Google Pay doesn't work for me if my phone unlocked with my face. PIN or Print to unlock and it goes through first time.
Sent from my OnePlus 6T using Tapatalk
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Click to collapse
I believe this is desires functionality. The face unlock is way more insecure than fingerprint. If you unlock with fingerprint, it won't ask you in Google Pay.
I have face unlock enabled for swiping up (uncheck automatically unlock I think is the name) and then have fingerprint on as well. When going to a cashier, I unlock with FP everywhere else I unlock with face unlock.

kazea182 said:
I believe this is desires functionality. The face unlock is way more insecure than fingerprint. If you unlock with fingerprint, it won't ask you in Google Pay.
Click to expand...
Click to collapse
Yup. I think that's a good thing and glad it works that way.
Sent from my OnePlus 6T using Tapatalk

Just to follow up... I finally did a factory reset and now Google pay works as intended. Unlocking with my fingerprint allows me to use Pay but unlocking with my face requires a second authentication. Thanks to anyone who contributed to helping.