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2012 Nexus 7 Discussion Forums (1st Generation) => Nexus 7 Android OS (Jelly Bean) => Topic started by: Yvi on November 16, 2012, 03:25:42 PM

Title: Standby problem. (black screen)
Post by: Yvi on November 16, 2012, 03:25:42 PM
Hope to find some help with my latest problem (after update to 4.2)
After the update i can't lock my screen anymore.  When i lock, the screen goes out for a second, and then pops up again. It drains my battery. 
The screen pops on and off every 1/2 to 1 minutes.
My settings are oké. They set to 2 min before he goes to sleep, but my device doesn't sleep, it stays awake! Who can help me with this big problem?
My N7 is NOT rooted.
Title: Re: Standby problem. (black screen)
Post by: bjs229 on November 16, 2012, 08:21:04 PM
When you say lock, you mean press the power button or use a magnet?
Title: Re: Standby problem. (black screen)
Post by: Yvi on November 17, 2012, 10:16:52 AM
I push the power button the same way that I did before, but the screen pops up immediately after I push the button.
How can I use a magnet? Maybe that is a solution.....
Title: Re: Standby problem. (black screen)
Post by: bjs229 on November 17, 2012, 11:59:53 AM
Is there a cover on your nexus?
Title: Re: Standby problem. (black screen)
Post by: Yvi on November 17, 2012, 01:09:59 PM
I found out how to use a magnet. I taped it in my bookcover and it works!
But my tablet still try to pop up ones in a wile you see the screen flash and disappears again.
This is a solution for now, but not for long. I hope to solve the problem with the software.
Any suggestions?
Title: Re: Standby problem. (black screen)
Post by: JayJ on November 17, 2012, 01:51:48 PM
I've not heard of anybody with this problem since the 4.2 update so I would hazard a guess that it's an application clashing with the update, you could try removing some applications until it locks or do a factory data reset but this will completely wipe your device.
Title: Re: Standby problem. (black screen)
Post by: bjs229 on November 17, 2012, 02:19:27 PM
Glad the magnet gave you a temporary fix but I would take JJz advice.
Title: Re: Standby problem. (black screen)
Post by: Yvi on November 17, 2012, 02:36:05 PM
If i do a complete data recovery, does it wipe also my saved files? Do i have to backup all my own files?
And do you think it is the software or maybe my nexus is broke?
Title: Re: Standby problem. (black screen)
Post by: bjs229 on November 17, 2012, 03:42:03 PM
Yes it wipes your files. I am not sure as far as hardware or software. Can't hurt to try and reset thhe device before you take it back to the store just for your own knowledge and ours.
Title: Re: Standby problem. (black screen)
Post by: Yvi on November 17, 2012, 04:41:06 PM
I indeed think the best option is to reset my N7. It takes me some time to backup my files and apps, but when i done, i come back to you and let you know if my problem is solve.  Can take a few days.  Thank you so far.
Title: Re: Standby problem. (black screen)
Post by: Yvi on November 20, 2012, 01:39:17 PM
Thank god my problem is solved! I did restore my N7 to the fabric settings.
Now I have Android 4.2 whitout that nasty bug.
I'm happy again. :-)
Title: Re: Standby problem. (black screen)
Post by: bjs229 on November 20, 2012, 01:57:41 PM
Good News Yvi. Glad you got going. This thread will help people.

Sent from my Nexus 7 using Tapatalk HD
Title: Re: Standby problem. (black screen)
Post by: Yvi on November 21, 2012, 09:42:05 AM
I found out after i put all my apps back, that still one of the apps Wakes my N7. I dont know which app it is.
I resetted my N7 again, and now i put a few apps every day and hope tot find out which app causes the problem.
When i find out which app did this, i Will post it here.
Title: Re: Standby problem. (black screen)
Post by: bjs229 on November 21, 2012, 09:59:17 AM
Are you getting any notifications from apps?
Title: Re: Standby problem. (black screen)
Post by: bryn on November 21, 2012, 10:09:13 AM
I found out after i put all my apps back, that still one of the apps Wakes my N7. I dont know which app it is.
When i find out which app did this, i Will post it here.

Found today that a news collecting app woke my machine up in the night and tried to flatten the battery by morning :(
--
Bryn
Title: Re: Standby problem. (black screen)
Post by: Yvi on November 21, 2012, 12:21:25 PM
Are you getting any notifications from apps?

Not that i know about.

@Bryn I'm glad that I'm not the only one wit a divice that not will go to sleep. LOL
Title: Re: Standby problem. (black screen)
Post by: bjs229 on November 23, 2012, 02:48:32 AM
Not sure if you have checked Google Currents. That app will update in the background pretty often it seems if not disabled in its  settings. I'm not sure if it actually will wake your device but its worth a look.
 I notice my machine runs better if I update that app manually.
Title: Re: Standby problem. (black screen)
Post by: JayJ on November 23, 2012, 03:52:29 AM
Currents is well known to prevent devices from sleep thus consuming battery, personally I have disabled Currents...

Sent from my 32GB Nexus 7 using Tapatalk 2©

Title: Re: Standby problem. (black screen)
Post by: Yvi on November 27, 2012, 11:25:13 AM
I have Google Currents running and that is not the problem. I don't know what is the problem, because i did not put all the apps back (yet).
If I ever find out what app is causing problems, i let you know.
Title: Re: Standby problem. (black screen)
Post by: bjs229 on November 27, 2012, 11:34:02 AM
Did you change the settings to keep it from updating in the background?
Title: Re: Standby problem. (black screen)
Post by: Yvi on November 29, 2012, 04:11:16 PM
No, but currents does not wake up my device.
Something strange is happend today, i have installed 4.2 and today i was ask tot do a update tot 4.2? I did not do that, i already have 4.2. Very strange......
Title: Re: Standby problem. (black screen)
Post by: JayJ on November 29, 2012, 04:38:30 PM
It's the 4.2.1 update, mine said it was 4.2 but I knew 4.2.1 was out so updated anyway...

Sent from my 32GB Nexus 7 using Tapatalk 2©

Title: Re: Standby problem. (black screen)
Post by: loociddreemr on November 29, 2012, 06:50:41 PM
Yeah, I noticed that version number error as well. Though something was wrong for a minute.

Sent From my Razr Maxx (iKreaM.4.1.2.AOKP) via Tapatalk 2
Title: Re: Standby problem. (black screen)
Post by: bjs229 on November 30, 2012, 01:01:52 AM
I didn't notice. Full speed ahead from your upload .

Sent from my Nexus 7 using Tapatalk 2
Title: Re: Standby problem. (black screen)
Post by: loociddreemr on November 30, 2012, 11:04:49 AM
That screen only pops up when you accept the OTA. I wouldn't have noticed, but I updated my wife's through the conventional method.

Sent From my Razr Maxx (iKreaM.4.1.2.AOKP) via Tapatalk 2
Title: Re: Standby problem. (black screen)
Post by: Yvi on November 30, 2012, 12:12:53 PM
Oké, I did the update and indeed it is update 4.2.1.
Thank you all for your help. :-*
Yvi
Title: Re: Standby problem. (black screen)
Post by: bjs229 on November 30, 2012, 12:17:29 PM
Yvi. Any luck with the screen issue?

Sent from my Nexus 7 using Tapatalk 2
Title: Re: Standby problem. (black screen)
Post by: Yvi on November 30, 2012, 12:27:08 PM
My screen does not pop up anymore. But I did not put every app back (yet). Hope it stays this way.


Title: Re: Standby problem. (black screen)
Post by: bjs229 on November 30, 2012, 12:49:51 PM
Glad you have it almost figured out. How many more apps do you have to troubleshoot?
BTW,How do you pronounce your name? Sort of like Ivy the plant in English?

Sent from my Nexus 7 using Tapatalk 2
Title: Re: Re: Standby problem. (black screen)
Post by: Yvi on November 30, 2012, 01:42:37 PM
I think I have maybe 25 apps (mostly games) That I did not put back. If I find the app who did cause the problem I will let you know, but maybe I never know because I do not put all the apps back.
And yes, you pronounce my name like Ivy but you write Yvi.
Title: Re: Standby problem. (black screen)
Post by: bjs229 on November 30, 2012, 02:11:11 PM
Cool name. I was in the Netherlands twice. Took the train from Paris to Brussels. Then thru to Rotterdam and Amsterdam. I love it there!
Interested to know which app is the culprit.
Sent from my Nexus 7 using Tapatalk 2
Title: Re: Standby problem. (black screen)
Post by: Yvi on November 30, 2012, 02:35:31 PM
Like I said, if I find out, I will let you know.