topic Re: My phone can be unlocked without ask any pin or fingerprint ! (bug) in XZ Series

My phone can be unlocked without ask any pin or fingerprint ! (bug)

SPeaky — Sat, 06 Jan 2018 12:09:00 GMT

This happens at least once per day and I don't know what to do.I press the power button and phone skips the lockscreen,going to directly homescreen.If someone takes my phone and this happens,it can be really dangerous.Is it an Oreo bug and what should I do? As I said,it happens 1-2 times per day (max 2 times) but still a serious bug

Re: My phone can be unlocked without ask any pin or fingerprint ! (bug)

najodleglejszy — Sat, 06 Jan 2018 12:36:18 GMT

@SPeakygo to Settings > Lockscreen & Security > Smart Lock and see if any of the settings there is enabled.

Re: My phone can be unlocked without ask any pin or fingerprint ! (bug)

SPeaky — Sat, 06 Jan 2018 12:41:52 GMT

Actually I deactivated smart lock from trust agents in security section.So smart lock is disabled in my phone.So that means this is a bug and developers should notice that because strangers may use this bug and this is a clearly security weakness

Re: My phone can be unlocked without ask any pin or fingerprint ! (bug)

Strampke — Sat, 06 Jan 2018 13:24:39 GMT

Are you sure you didn't activate any of these?

Re: My phone can be unlocked without ask any pin or fingerprint ! (bug)

SPeaky — Sat, 06 Jan 2018 15:26:03 GMT

Actuallt can not see the image you sent.Is it possible to write 'these'? @Strampke

Re: My phone can be unlocked without ask any pin or fingerprint ! (bug)

najodleglejszy — Sat, 06 Jan 2018 15:29:52 GMT

@SPeakyyou should now be able to see the image.

Re: My phone can be unlocked without ask any pin or fingerprint ! (bug)

SPeaky — Sat, 06 Jan 2018 16:28:15 GMT

As I said,none of them is enabled(in fact smart lock is disabled completely).I think this is a really serious bug,pls developers notice this

Re: My phone can be unlocked without ask any pin or fingerprint ! (bug)

Strampke — Sat, 06 Jan 2018 20:42:46 GMT

Please read this Google help page

and see if you can find a clue.

Start with Turn off automatic lock

Then switch off screen lock and after that set up screen lock again.

Re: My phone can be unlocked without ask any pin or fingerprint ! (bug)

SPeaky — Sun, 07 Jan 2018 16:45:50 GMT

Thanks for the assist but only after 5 minutes from doing that,happened again by chance(not happened again during all day though)As always,happened today just for one time(in the morning).I will try some other things but I have no hope,actually.As if it has to be happened at least one time per day Phone opens suddenly without asking any pin or fingerprint.

Re: My phone can be unlocked without ask any pin or fingerprint ! (bug)

admad — Sun, 07 Jan 2018 18:12:03 GMT

I know it's a stupid question but are you sure that while pressing the power button phone isn't reading your fingerprint?

Another possibility is that the phone isn't actually locking itself so there is no need to unlock the phone, some app/setting might be doing that. Anyway for the seven months I've been using this phone never had such issues.

Re: My phone can be unlocked without ask any pin or fingerprint ! (bug)

Artyomska — Sun, 07 Jan 2018 19:41:29 GMT

I think I know what is the problem and I am not joking. The phone actually reads your fingerprint so fast you don't actually see the lockscreen at all. It happens to me sometimes also. If you wanna test this, disable your fingerprint unlocking for a day or two and see if this happens again. If yes, well we have a problem.

Also check if the locking time of the screen after you closed it isn't too high. But it's probably what I said above.

Re: My phone can be unlocked without ask any pin or fingerprint ! (bug)

SPeaky — Sun, 07 Jan 2018 19:48:06 GMT

Yeah I was thinking the possibility of your second writing and that is more possible.I am using an app for app locking and that may cause that issue but stilI I have to investigate it further.I wanna try safe mode but issue does not occur frequently or often,it happens really rarely(usually 1 time in a day).In the end if I still can not find any solution I will perform a factory reset

Re: My phone can be unlocked without ask any pin or fingerprint ! (bug)

SPeaky — Sun, 07 Jan 2018 19:51:57 GMT

@Artyomska you have written while I replying the previous message.That is actually impossible because two days ago my friend took the phone and he was able to open the phone.Then he asked me 'how could I open that phone' and asked that If I have fingerprint security/pin or not.(His fingerprint is not saved also) I mean phone is REALLY skips the lockscreen completely

Re: My phone can be unlocked without ask any pin or fingerprint ! (bug)

Artyomska — Mon, 08 Jan 2018 19:44:08 GMT

Well this is a pretty big problem then 😕
Have you checked your timeout until the phone locks itself though?
If you friend unlocked the phone right after it was "locked" by you maybe it's that. If he/she unlocked it after a long time from the last lock, then I expect some response from Sony also (and maybe that happened to me also then 😕 )

Re: My phone can be unlocked without ask any pin or fingerprint ! (bug)

SPeaky — Mon, 08 Jan 2018 20:27:51 GMT

1 min screen inactivity time for sleep,5 sec locks after screen off and power button locks instantly.When he took the phone,phone was also locked.That's why I'm waiting for a Sony developer or authorized person.Last thing to do is performing a factory reset I think.I do not even know if that is a software issue,though.

Re: My phone can be unlocked without ask any pin or fingerprint ! (bug)

stanlykubrick — Tue, 09 Jan 2018 14:08:03 GMT

Well, it almost has to be a software issue. The only hardware issue would be something miss-wired, or solderd impoperly. So it appears as if some piece of software is making the phone think it is unlocked when in fact it should not be. Don't do a factory reset...do a software repair....it will not just wipe the phone like a factory reset does but it will install a fresh copy of all the software/drivers etc., etc.

The pain is the same but try this and let us know the results!

Re: My phone can be unlocked without ask any pin or fingerprint ! (bug)

SPeaky — Tue, 09 Jan 2018 20:36:59 GMT

When I'll go home,I will do that and let you all know the results.Nevertheless,I deleted all fingerprints (disabled at the same time) and trying with this way from now on.l

Maybe that can be a solution who knows.If it works,until I do the software repair I may keep the fingerprint disabled.It won't be a big problem for me.

Re: My phone can be unlocked without ask any pin or fingerprint ! (bug)

SPeaky — Fri, 12 Jan 2018 07:41:49 GMT

Looks like the problem was happening because of the fingerprint lock option.I've not been using fingerprint for 2-3 days and never skipped the lockscreen.I think there is a bug about locking fingerprint but for all that,I'm gonna use f.p because it's much much easier than pin lock.Phone may be opened by a stranger fortuitously in the future but I'm feeling lucky Still,I'm still thinking that I'm the only one who is facing this issue in this forum

Re: My phone can be unlocked without ask any pin or fingerprint ! (bug)

RuneJ — Fri, 12 Jan 2018 12:59:06 GMT

Have you enabled Smart Lock that can automatically unlock the phoen when at a particular place, close to a specified unit, etc?

If yes, this could explain that the phone is automatically opened without fingerprint.

Re: My phone can be unlocked without ask any pin or fingerprint ! (bug)

SPeaky — Fri, 12 Jan 2018 13:59:06 GMT

As I explained in my 2-3 previous replies,my smart lock feature is completely disabled.No possibility to happening because of smart lock