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Also: finger unlock only works after a password has been entered once (to generate the "finger unlock" key). Copying fingerprints or compelling finger access i
by seiji 11y ago
Also: finger unlock only works after a password has been entered once (to generate the "finger unlock" key). Copying fingerprints or compelling finger access is moot if the device dumps the finger unlock key (as is done after 48 hours of no finger auth or after 5 (?) failed finger auth attempts).
But, trying to revoke the finger auth key in an emergency (less than 5 seconds) is difficult. Your only option is to try and quickly power off the device, but you're at the mercy of the "press and hold sleep/wake button for 5 seconds, then slide to turn off" delay timer.
- idlewords 11y agoOr quickly chew off your fingers.
- deleted 11y ago[deleted]
- evan_ 11y agoIf you hold the power and face buttons for about 10 seconds the phone will turn off. Takes two hands though.
- srwx 11y agoAndroid dumps all "smart unlock" options when you press and hold (1 second) on the 'slide to unlock' on screen button and forces passcode/password/pin from that point on. I practice doing this so it's not foreign to me if I ever find myself in a dodgy scenario.
- gambiting 11y agoReally? How exactly do you do that? I've got the Xperia Z5, where the wake/sleep button is also a fingerprint scanner, so I can't exactly hold that without unlocking the phone, and holding the little padlock icon on the screen doesn't do anything.
- srwx 11y agoThe on screen slide to unlock button. Works perfectly on my Z3c and I'm hoping to not lose such a nice feature if I upgrade to a Z5c but it sounds like I might :( https://vid.me/Ns12 https://vid.me/Ns12
- gambiting 11y agoAlright, I just tried that, and I do get the "Device will remain locked until you manually unlock it" but the fingerprint scanner still works fine. The only time I've seen it forcing me to use the pin was when it couldn't scan my finger 3 times in the row(which doesn't really happen, the sensor in that thing is really accurate(or really forgiving)).
- srwx 11y agoThat's a shame :( It'll be interesting to see if Marshmallow with its official fingerprint API changes the behaviour as handset manufacturers are implementing fingerprint support themselves in Lollipop (and so its going to be a bit all over the place).
- Tepix 11y agoThat or hold the power and home buttons for 10 seconds. Can be done in your pocket.