Nexus 4 - Screen unlocking problem - Nexus 4 Q&A, Help & Troubleshooting

I have my Nexus 4 for about 2 months now, and lately I have noticed a very annoying thing.
Whenever I lock my screen and then trying to quickly unlock it (using the power button), the screen lights up a little bit in a dark blue, stays like that for about 15-20 seconds, and only after that the lock screen shows up, allowing me to unlock the phone. This happens every time I try to unlock it after, let's say, less than 10 seconds after I locked it. If I unlock it after a longer period of sleep, no problem at all.
I have stock Android 4.2.2 and the phone is not rooted.
I have had installed GO Locker, and thought that it might cause the problem, but I uninstalled it. Unfortunately the problem persists.
I also had apps like Screen on / off, GO Switch, that were device administrators to allow them to lock the screen. I have unistalled them all, the same situation.
Can anybody tell me what is the cause and how could I fix this? It's really annoying when I need some quick information and I have to wait 20 second for the screen to unlock.

Related

Disable key guard, No Lock not working?

For months now Ive used No Lock effectively to disable the keyguard or lock.
However, last week I pulled the battery, and when i rebooted, EVERY TIME i turn off the screen i need to slide the lock thing to unlock it.
Ive uninstalled msecure, and seekdroid to avoid conflicts, and gone through almost every apps permissions looking for the culplit. No new apps since this started...
I did have a device administrator, which was removed about a month ago. even then it didnt have a screen lock in place.
Ive since renamed adminfeednotifier so i dont see any reason that would be the issue. Also ive tried other 'unlock' programs like Anti-Lock, but to no avail.
Strange thing seems to be that if i power off, it works again, power button / home button pop right to the home scree, but only until i pull the battery...
Then after 2-3 minutes the screen lock pops up again! >:<
its driving me nuts not knowing whats causing the issue.
Please help me figure this out.

[Q] Anyone having freezing issues on the lock screen?

My device constantly freezes when I try to unlock it. The lock screen comes up when I push the power button and it's randomly completely non-responsive. I will lock the screen again with the power button and repeat the process and it will then work.
Anyone else having this problem on their Nexus 4?
I've tried disabling lock screen widgets with no help. All I am left to wonder is whether it's from an application I've installed.
If I want to completely reset the phone and remove any fragments of old applications, is doing a factory reset enough to get this done?
crazeco said:
My device constantly freezes when I try to unlock it. The lock screen comes up when I push the power button and it's randomly completely non-responsive. I will lock the screen again with the power button and repeat the process and it will then work.
Anyone else having this problem on their Nexus 4?
I've tried disabling lock screen widgets with no help. All I am left to wonder is whether it's from an application I've installed.
If I want to completely reset the phone and remove any fragments of old applications, is doing a factory reset enough to get this done?
Click to expand...
Click to collapse
Yep , not as much as u though , and never since installing AOKP
drawde40599 said:
Yep , not as much as u though , and never since installing AOKP
Click to expand...
Click to collapse
How often on stock 4.2 did you have the freezing?
crazeco said:
My device constantly freezes when I try to unlock it. The lock screen comes up when I push the power button and it's randomly completely non-responsive. I will lock the screen again with the power button and repeat the process and it will then work.
Anyone else having this problem on their Nexus 4?
I've tried disabling lock screen widgets with no help. All I am left to wonder is whether it's from an application I've installed.
If I want to completely reset the phone and remove any fragments of old applications, is doing a factory reset enough to get this done?
Click to expand...
Click to collapse
Happens to me once every two days.
Sent from my Nexus 4 using xda app-developers app
I had random reboots from lock screen. I wiped and flashed the factory image. I haven't had the issue in the last 3 days.
Sent from my Nexus 4 using Tapatalk 2
8gb Nexus 4 stock
No issues at all.
jasonwc said:
I had random reboots from lock screen. I wiped and flashed the factory image. I haven't had the issue in the last 3 days.
Sent from my Nexus 4 using Tapatalk 2
Click to expand...
Click to collapse
I spoke too soon. My phone just locked up while in a deep sleep overnight. I had to Power + vol down to restart it.
+1 . Mine generally freezes overnight. When I got to unlock my nexus 4 to check the time I find the phone frozen on the lock screen then the phone reboots itself. I did a factory restore, did a factory re-flash, and nothing seems to help. Today I shut off google now to see if that was the issue. Reading through various threads it seems the problem is widespread and across multiple nexus devices including the nexus 7 and galaxy nexus. This gives me some faith that the phone itself maybe fine. Google please fix ASAP. I need my alarm in the morning, not a frozen phone. :crying:
---------- Post added at 12:21 PM ---------- Previous post was at 12:15 PM ----------
Just to add, I did a bug report and called tech support. Nothing I mentioned seemed like news to my tech nor did he have any recommendation other then to RMA. I told him I would give the phone another week to see if anything improves its stability. I still have my Gnex as a backup. I have not noticed any issues with 4.2 on my Gnex but then again it's been in my backpack since my nexus 4 arrived. Perhaps I will leave my Gnex on as we'll to see if I run into any issues with it.
Lock screen freezes once or twice every day, the fix is easy, just press the sleep button again, but its still annoying. 4.2 has pretty bad quality control.
i had the same issue on my old N4. Especially when i got incoming call, lock screen freezes all the time
I will get replacement tho..
crazeco said:
My device constantly freezes when I try to unlock it. The lock screen comes up when I push the power button and it's randomly completely non-responsive. I will lock the screen again with the power button and repeat the process and it will then work.
Anyone else having this problem on their Nexus 4?
I've tried disabling lock screen widgets with no help. All I am left to wonder is whether it's from an application I've installed.
If I want to completely reset the phone and remove any fragments of old applications, is doing a factory reset enough to get this done?
Click to expand...
Click to collapse
I had the same issue. Seemed to be related coming out of the lockscreen after having done some BT music playback. Anyway, I had this "lockscreen widget disable" app installed. Removed it again, and now I have not had any lockups in the last 3 days.
I'm glad to know I'm not alone here. I did a full reset and I still have the problem. I get a lock 4-5 times a day.
I do use bluetooth and google music...
Knowing other people are having this issue really makes me think it's software and not hardware.
i notice that when mine freezes on the lock screen, [i use a pattern], that pressing the power button to turn the screen off then back on solves the problem.
crazeco said:
My device constantly freezes when I try to unlock it. The lock screen comes up when I push the power button and it's randomly completely non-responsive. I will lock the screen again with the power button and repeat the process and it will then work.
Anyone else having this problem on their Nexus 4?
I've tried disabling lock screen widgets with no help. All I am left to wonder is whether it's from an application I've installed.
If I want to completely reset the phone and remove any fragments of old applications, is doing a factory reset enough to get this done?
Click to expand...
Click to collapse
This is the only disappointment for me, having to press the power button a few times in order to unlock this damn phone.
Power to turn screen on, frozen touch, power to turn screen off, power to turn it on again and the it registered touch.
I am surprise not many have this problem.
A friend of mine ordered at the same time as I did, and does not have this problem.
Feels so stupid having to turn the screen on and off a couple of times to get into the homescreen.
Especially when friends asked to play with the phone and the damn thing wont unlock, and I have to explain to them the process of unlocking the phone.
I want to rma, but shoot, might not get a replacement till next year.
unfaix said:
This is the only disappointment for me, having to press the power button a few times in order to unlock this damn phone.
Power to turn screen on, frozen touch, power to turn screen off, power to turn it on again and the it registered touch.
I am surprise not many have this problem.
A friend of mine ordered at the same time as I did, and does not have this problem.
Feels so stupid having to turn the screen on and off a couple of times to get into the homescreen.
Especially when friends asked to play with the phone and the damn thing wont unlock, and I have to explain to them the process of unlocking the phone.
I want to rma, but shoot, might not get a replacement till next year.
Click to expand...
Click to collapse
RMA won't help a software defect, which it is 100%, it's freaking annoying and makes me think google literally makes the phones and never uses it to see if it has any bugs.
Same problem here. So it is hardware related?!
doquentin said:
Same problem here. So it is hardware related?!
Click to expand...
Click to collapse
Any updates on this issue? My lock screen still freezes.
Never had one, probably a rogue app.
You might have 3rd party application on the lock screen that does this?
Sent from my Transformer Pad TF300T using Tapatalk HD
doquentin said:
Same problem here. So it is hardware related?!
Click to expand...
Click to collapse
I think I've had it happen 2 or 3 times so far. I don't think it's hardware related, it seems to be software to me.
I figured out the first time it happened, if I grab and slide up to launch Google Now, it lets me unlock it. So it definitely isn't hardware, as it is registering touches.

[Q] Random Reboots and Screen Wake

My nexus 7 has been randomly rebooting a lot lately. I have no idea why. I haven't even rooted or unlocked the bootloader or anything on this. I haven't installed any new apps for like a month probably so I don't think it's an app.
Also, my screen wakes up on it's own quite frequently. See the attached screenshot. Notice how often the screen is on, there's like a million lines for it turning on and off. And this is while I'm asleep and not doing anything with it.
I can't think of any app that causes this because I haven't installed any apps in forever. Not a root or unlock issue because I haven't done either. I have a case with a magnet in it to turn the screen on and off. I don't think it's that because I took it out of the case and I still saw it happen.
Any ideas on what is causing this?
I had one too hope its only 1 and screen wake maybe caused by some application you have installed, try reinstalling rom and without installing anything you will notice no screen wake

Screen won't dim/lock after 30 seconds, and randomly wakes up by itself.

I have a rather weird problem.
I'm on CloudyG3 2.1, and I have the D802 model. Like I stated in the title, the screen just won't lock after 30 seconds (I've set it to 30), won't even dim. I have to manually lock the screen. Furthermore, it also randomly wakes up the screen by itself, without any notification or suspicious activity.
Is there any utility I can use to find out the culprit? Maybe it's an rogue app? To be honest, I have nothing too shady installed on my phone so I'm left clueless.
Thanks a lot for whoever takes time helping me out!

screen lock freezes sometimes.

Hello
I started using screen lock apps, with slide and pincode options. I was using slidelock. After sometime, after an upgrade or two to the app, the screen lock started to freeze. It would not let me unlock the phone, but stayed at the locked screen only. I had to restart the phone itself, and that also by removing the battery and reinserting. I could not access anything on the phone. So I uninstalled slidelock.
I started using cleanmaster screen lock, and for many days, this worked great. But this morning, again the freeze screen lock started. I had to remove the battery and restart the phone.
Has something similar happened to anyone else? What is the solution to this?
I am using Samsung Note 3 with android 4.4.2
thanks

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