topic Re: swipe to unlock does not always work in XPERIA archive

swipe to unlock does not always work

elliotl — Fri, 15 May 2015 18:01:04 GMT

When my new z3 is locked, I frequently have trouble swiping to unlock the phone. When I try to swipe, I get the nice psychedelic particle trail showing the swipe, but often the phone does not unlock. It can take 3 or 4 attempts to get the darn thing to unlock. It is bad enough that I worry that the phone will simply not unlock no matter how many attempts. Very very irritating. I write firmware for a living. This is a serious bug.

And when I google the problem, I found other users experiencing the same problem.

See http://forum.xda-developers.com/z3-compact/help/swipe-issues-t2888154 .

Is there some way to get this problem in the Sony bug reporting system? When is Sony going to fix this?

Re: swipe to unlock does not always work

Uliwooly — Fri, 15 May 2015 18:04:22 GMT

I haven't been able to replicate this

@elliotl

Do you have a protective case and/or film on your phone?

Re: swipe to unlock does not always work

elliotl — Fri, 15 May 2015 18:32:10 GMT

I have a protective case, but no film over the front screen. It may just be some phones, but I am not the only one seeing this. The post from 'Caine' that I referenced describes the exact same problem. I can see particles trailing my finger, but the phone does not unlock.

Re: swipe to unlock does not always work

elliotl — Fri, 15 May 2015 18:44:54 GMT

It would be better for everyone if you could easily reproduce this bug. Even if you cannot see it, the bug should be submitted to the people maintaining the software for the phone. The fact that it may be difficult to reproduce makes the bug arguably more serious, because it will probably be harder to fix.

Re: swipe to unlock does not always work

elliotl — Fri, 15 May 2015 18:48:05 GMT

On my phone, this bug is easy to see. Happens about half the time. Just a few minutes ago, it took 5 long swipes to unlock the phone.

Re: swipe to unlock does not always work

Uliwooly — Fri, 15 May 2015 20:06:07 GMT

@elliotl

Boot on safe mode for an hour or so, lock and unlock the phone over and over until you can recreate the issue, if you can't then it's another app creating this issue.

http://talk.sonymobile.com/t5/FAQ/How-to-boot-your-phone-into-safe-mode/m-p/348008#U348008

Do you have any antivirus, taskillers, third party lock screen, third party home launcher?

Re: swipe to unlock does not always work

elliotl — Fri, 15 May 2015 22:50:28 GMT

I rebooted to safe mode. Phone behaves exactly the same. Took 4 swipes to unlock the phone the first time.

Re: swipe to unlock does not always work

elliotl — Fri, 15 May 2015 22:59:01 GMT

Very very little is installed on this phone. Yahoo mail client. First Tech Credit union app. Probably one of the cleanest phones around.

Re: swipe to unlock does not always work

Uliwooly — Fri, 15 May 2015 23:49:48 GMT

You could repair the phone with PCC and report back

PC Companion (PCC)

Bridge (for Mac)

Alternatives on How to backup Xperias

http://talk.sonymobile.com/thread/36355

@elliotl

Re: swipe to unlock does not always work

Phy — Fri, 15 May 2015 23:51:38 GMT

1. Settings
2. About phone
3. Diagnostics
4. Test
5. Touchscreen

It could be a hardware issue, test the screen.

Re: swipe to unlock does not always work

elliotl — Tue, 19 May 2015 06:55:32 GMT

Passes the diagnostic test for the touchscreen. This is not really a surprise because when I swipe the screen, the psychedelic trail that follows the swipe clearly indicates that the hardware detects the swipe and is basically working fine. However the swipe very very frequently does not unlock the phone.

I seem to have better success unlocking the phone when I swipe with my thumb. That should not be necessary. The swipe mechanism is buggy. Fix it!!

Re: swipe to unlock does not always work

Uliwooly — Tue, 19 May 2015 20:37:07 GMT

@elliotl

@elliotl wrote:
I seem to have better success unlocking the phone when I swipe with my thumb. That should not be necessary. The swipe mechanism is buggy. Fix it!!

what were you using to unlock the phone if it's not with your thumb? another finger, if so, by any chance do you have long nails?

Re: swipe to unlock does not always work

elliotl — Tue, 19 May 2015 21:57:01 GMT

No, I do not have long fingernails. Very short. I was using my index finger. The phone sees the finger drag always. You can tell by the flashing bubbles that follow the finger. The bug is the fact that a 3 inch swipe at just about any speed does not always unlock the phone. I am not the only customer seeing this. The algorithm for recognizing that dragging the finger across the screen is an unlock swipe is probably complex. Have a software engineer with access to the code take a look at this.

Re: swipe to unlock does not always work

Uliwooly — Tue, 19 May 2015 22:04:37 GMT

@elliotl

just tested again on a Z3, I can't recreate the issue, also the particle effect it's gone, which android version, build number and model variant do you have?

Re: swipe to unlock does not always work

elliotl — Wed, 20 May 2015 01:51:03 GMT

Just bought this phone from T Mobile a week ago.

Android version is 4.4.4

build number is 23.0.D.1.123

model number is D6616

kernel version is 3.4.0-perf-g0ab9f9a dated Fri Sep 5 07:22:38 2014

Re: swipe to unlock does not always work

Uliwooly — Wed, 20 May 2015 02:10:14 GMT

@elliotl

Have you repaired the phone with PCC?

PC Companion (PCC)

Bridge (for Mac)

Alternatives on How to backup Xperias

http://talk.sonymobile.com/thread/36355