2013-01-17 21:11 - edited 2013-01-17 21:11
I am not an AT&T subscriber but I had the same issue. After struggling with the device I noticed that it only does it in some areas where I live. It turned out that everytime the device tries to switch from 3G to 2G, it's rebooting or poweing itself off. It was annoying as hell. Here's what I did.
Open dialer, press ##3282 and press dial ==> Field test mode. Press settings ( three dots in the bottom ) and lock it on either 2G/3G and see if that helps. You can put it to Automatic later on if that doesn't help so no big deal here.
I bought my Lumia 920 in Denmark and have a Telenor subscription.
This never used to happen to me until I enabled all the options in the "Find my phone" setting. After I enabled that setting - it would happen every night (when I wasn't using the phone).
As soon as I turned all of the options under "Find my phone" off - the issue stopped and now it's been stable for a week - hopefully it will stay that way.
The find my phone setting is buggy. When I got to the settings page, find my phone shows "off" under it. Then when I tap on find my phone the setting says "Use find my phone" On, where I can change it to off.
In short, the info it shows on the settings screen about "find my phone" is opposite of what the setting is.
Where do you see the option to turn it off? When I go to "find my phone" in settings I just get two options to either send apps to phone using push-messages or to save the location of the phone regularly. There is no option to actually turn off "find my phone".
2013-01-23 14:53 - edited 2013-01-23 14:55
I've had the same issue, phone shuts off overnight, or even while it's in my pocket. I took it overseas and had it on Airplane mode the whole time and it still did it, so I don't believe it is related to LTE vs. 3G. I had Wi-Fi on and off, and it seemed to behave better when Wi-Fi was off, but I can't be certain.
To be clear: I'm on AT&T, have restarted the device many times, but I have not yet performed a factory reset. I have been using the wireless charging station when it has shut off overnight.
I've had my phone for a few days now and last night for the first time, my phone randomly decided to shut off.
I figured, okay, the battery must have been dead. So I stuck it on the charger and that didn't do anything. I left the phone alone and figured I would go and return it to AT&T in the morning... It came back on after some time.
So, this morning rolls along and my phone randomly shuts off again. So, I thought, okay, last thing I am going to try is turning off automatic updates, maybe it's updating itself without asking me... It is a windows phone after all.
I haven't had the issue again yet, but I might be switching to another Windows Phone if this issue persist, I don't have time for random shut downs as I run a business from my phone.
If anyone knows of an issue, let us know. Otherwise the phone will be returned before Feb 1st.
2013-01-23 16:40 - edited 2013-01-23 16:57
To turn off LTE check under Settings-->Mobile network-->Highest connection speed. Setting this to either 2G or 3G should disable LTE.
I dont see those settings on my phone. Not sure if its a ATT thing or not but I dont see the setting "mobile network". Is there any other way to turn off LTE?
Also has Nokia acknowledged this issue yet? I'm curious if they are even looking into the issue. And swapping out phones doesnt seem to work as the replacements phones exibit the same behavior.
I think I might have a clue about this.
I purchased my Lumia 920 in Denmark (Telenor is the service provider) and for a month after purchase I have had no such issues.
App and system component updates were available at different timepoints during the period starting from the time of purchase and now and I've updated every time an update was available.
The phone would always (like clockwork) freeze during Tuesday night and around noon on Saturday.
And then a funny thing happened on one Saturday - my battery saver feature was on and as far as I know that disables apps running in the background to save battery power - and it didn't freeze that Saturday. After it skipped the freeze that time - the freeze "schedule" changed - and it started freezing on other days (but always at a particular time).
Now, I've done a reset of the phone to factory settings (twice) and that doesn't help (also tried changing my Microsoft account).
What this looks like to me is some kind of "software running in the background" thing. I honestly don't think it's a hardware issue. It can be either the apps (for which I don't have time to check every single one) or the OS itself.
The Portico update has not been released in Denmark yet, at least not with Telenor (even though I've contacted them and they said that the update has been approved but not yet released) so I'm kind of hoping that the update will resolve the issue.
The phone works perfectly in all other aspects.
What's your take on this?
Resolution for this problem is as follows:
1. For those who haven't applied portico update, please turn off "find my phone" option.
2. For those who have applied portico update, please uncheck both options in find my phone feature. Uncheck "send apps to my phone using push notifications" and uncheck "save my phone's location periodically and before battery runs out to make it easier to find".
It is more of a software problem that was highlighted to Microsoft.
Whole world is having a similar issue , I want a NOKIA person to root the problem and given a statement on this . Or atleast acknowledge saying that we are aware of the issue and will be fixed in so and so release . I felt very bad to leave my Iphone and adopt a phone which don't have apps and support . Looks like Windows and Nokia have left the testing peice to users ... NOT A GOOD SIGN .
Since my last post, I've done a factory reset, and the phone keeps shutting down. It's not related to the "Find My Phone" feature, as that has always been off for me.
I've turned off the automatic updates, so we'll see if that does anything, though I imagine it wouldn't since it has shut down both at night and during the day, both here in the States and when we went to Europe.
Yeah I unchecked both boxes and I still have the problem. its really aggrevating because I use my phone as an alarm clock and when it goes into brick mode absolutely nothing works. Im really starting to regret not going with HTC.
My 920 is doing the same, Received it on Monday and by Wednesday morning it had rebooted twice and powered down once. I had to do a soft reset (volume down + power button) rebooted twice within five minutes, so I did a hard factory reset. for those who do not know how to perform a hard factory reset on the 920
Step 1 Make sure the charger is disconnected.
1. With the phone powered off.
2. Press and hold the Volume down and connect the charger, if succeed an exclamation mark (!) is shown on the screen.
(To cancel OS reset and exit to the normal mode, press the Volume Down + Power Key and hold them for 15 seconds).
Step 2 Then input Keys in the following order:
1. Volume up
2. Volume down
4. Volume down
Step 3 The phone will reset and boot up automatically. Please note that this may take several minutes.
As someone previously has mentioned a factory reset and it did not work, I don't know if they tried it this way. I don't think anything we try is going to fix this fault, so we are just going to have to wait for a firmware update to fix this problem . Hopefully Nokia will release an update soon.
I still think the 920 is an awesome phone when it works.