Lumia 920 random reboots and dropped mobile data a...

Hi! Wondering if anyone can shed some light on an issue I'm seeing with TWO Lumia 920 handsets?
Both were recently wiped for new users - full "reset your phone" option. After installing the Black update, the phones now randomly reset and reboot. In addition, they cannot seem to hold onto a data connection (either GPRS, 3G or H) - the mobile data connection works when the phone is first boot up, but loses connectivity some time later. Mobile data isn't restored unless the phone is turned off and on again. Totally scratching my head on this - and as it affects two phones, I'm pretty sure it isn't a faulty handset. Steps I've tried:
Swapping SIM cards around (including SIMS not associated with those two handsets)
Manually setting APN details (we're on Orange - also EE)
Installing Access Point app (which isn't installed as standard) for auto-configuration of APN
Toggling between 4G and 3G maximum connection speed settings
Manually selecting mobile network (i.e. disabling automatic network selection)
Wiping and resetting both phones (multiple times)
Installing fresh firmware image via the Nokia Software Recovery Tool
All these don't help! Frustratingly, everything works fine over WiFi - and I have observed that the random reboots only occur when data is being transmitted over mobile network. Both handsets belong to Orange UK (EE), and are updated with EE's approved Black firmware...
Anyone seen anything similar? Anyone come across a fix?!?

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Lumia 920 Randomly Reboots / Cannot Be Turned Off

Hello,
I have just bought a Lumia 920 today, and now have the problems described in the thread subject... Every few minutes while idle, the phone will power down and immediately power up again. This does render the phone useless to me...
When trying to shut it down to remove the SIM card I noticed I cannot even shut it off. It would instantly turn itself back on again.
Did anyone else notice this kind of behaviour from their Lumia 920 (or maybe other phones as well)? I was really looking forward to this device and this really ruins it for me
Thanks in advance!
Solved!
Go to Solution.

Same thing on my Lumia 920 unit from ATT, received just today via online purchase. Began resetting within 30 minutes, and continues to do so, especially in places like voicemail and phone functions. Also fails to register initial settings like search engine (on every reset, goes back to Bing instead of Google) and other things I've had to re-configure 3 or 4 times. It took about four tries to get a Texas map database to download, despite using a home wi-fi right next to the wireless router.
I don't think this is a SIM problem at all, because the rests don't always take place in the phone section. And I've even turned the cell phone data feature off, and still the reboots. It MAY be the micro-USB connector, because since I've been charging the phone while initializing it, the resets happen with it inserted. But this is also the data cable, so if the unit resets all the time while moving huge chunks of desktop data, then it is useless. If the micro-USB connector is that rickety, more trouble is down the road.
This is a real shame, becuase I like the phone and was ready to switch from iPhone. Now I'm stuck with something I have to send back and try to get my old iPhone to work again, so at least I'll have some cell phone calls.
About eight hours of my time loading music, getting familiar, and configuring for my home desktop windows 8. If my Windows 8 desktop rebooted my machine eight times in only a few hours of initial usage, I'd be going back to old desktop as well.
Again, very sad, because this seemed to be a great phone with great features at a low-low price. I guess when it seems too good to be true, it is. iPhone may be falling behind in some ways, but at least it's been a reliable phone for three years.
Lucky I have 14 days money back, return to old phone, no questions asked. But it took less than half a day to figure out the phone didn't work.
About the only possible fix would be some firmware upgrade promised to fix it permanently, but they had better make a big deal about publicizing, or have a million returns on their hands.

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New Z10 Random reboots and text notifications STILL

June 13th I upgraded from a Torch to the Z10. 3 days later, it was randomly rebooting about 4 times a day. I went through a wipe and reinstall and it seemed to work for about a week and then it started with the random rebooting as well as telling me I had texts when I didn't, and telling me every single day that there was a software upgrade available for the very same OS I already had on the phone!
I took it into Rogers and because it was past 2 weeks my options were dismal so I went with the free option. I had them send it in to be fixed. I just picked it up today and haven't even had it back 4 hours. I just got it back to where I wanted it preference wise and blammo! Random reboots and text notifications when there are none.
My options from here? Send it in AGAIN, or pay a $120 deductible through my protection plan for a 'new' phone (= refurbished - I was told they cannot guarantee me it would be brand new), or pay for the phone outright (in the neighborhood of $600) and then start a new plan for a different brand of phone (and yes, I will convert to the other side if this doesn't get resolved properly).
So frustrated because I feel it's extremely unfair to have to pay to own a device that doesn't even work just to get out of my contract (this is my provider but if they aren't able to get their money back from BB then why would they give me mine back?)... especially given that I received it just over a month ago and already had to send it out for a repair that didn't even work!
HELP!? I've tried everything... I'm SO disappointed and frustrated. I've been a loyal BB customer for over 5 years. This is about to end if there is no resolution. I need a phone I can rely on.
Thank you in advance to the powers that be - may they have mercy!

Hey kc1881,
Welcome to the BlackBerry® Support Community Forums.
To better assist you with this issue and to gather device event logs to determine the root cause, we would request that you contact your wireless service provider to have this issue escalated to BlackBerry Technical support for further trouble shooting.
Let us know if you have any questions.
Thank you.
-HB
Come follow your BlackBerry Technical Team on twitter! @BlackBerryHelp
Be sure to click Kudos! for those who have helped you.Click Solution? for posts that have solved your issue(s)!

Lumia 620 randomly freezes and reboots

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Hi, everyone. I've been having problems with random reboots ever since I bought my Lumia 620 and it was driving me crazy. It freezes up sporadically too, but I think I found a fix for rebooting issues.
When my cousin bought her Lumia 620 I immediately asked her if hers rebooted sporadically as well. She said it hadn't, not once. Then, one time her battery was dying so I gave her mine, and she left me with her battery and on charger while she went home. Anyway, hers started to reboot frequently, whilst mine was behaving ok.
When we replaced the batteries again, mine began rebooting again.
Finally, I checked both our batteries and found out mine was moving around the device more freely than hers. Hers was held firmly in place while mine danced around. Then I tried moderate, yet gentle tap on the side of my device and it rebooted EVERY TIME I tapped it. After I inserted a small, neatly folded piece of paper between the device and the battery, the battery clicked in place tightly and it couldn't move at all. Reboots stopped, no matter how strong I tapped the sides of the device.
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Help for N900 that randomly reboot and that have s...

DISCLAIMER
A moderator deleted an entire thread with details that have helped many many users with N900 phones that are rebooting because they believed we were discussing debranding N900s..
Firstly, the N900 is not branded..
Secondly, we were discussing changing settings on the device to stop the devices from randomly rebooting.. Something SUGGESTED BY NOKIA on the bugs.maemo.org bug tracker website.
Nothing in this thread will invalidate your warranty and all information is condensed from official Maemo websites.
If your device is randomly rebooting:
RESTART YOUR DEVICE AFTER A RANDOM REBOOT
There is a counter inside your phone that increases by 3 every time it randomly reboots. If this counter reaches 50 (after 17 random reboots in a row) your device will probably stop booting ALL TOGETHER!
To stop your device from completely locking, you must power off your device normally. Use the power button then select "switch off". When you power your device back on, the counter is reset. Remember, if you don't reset your device, it will stop booting.
REPAIRING A DEVICE THAT NO LONGER BOOTS
If your device was randomly rebooting but now fails to boot it may have reached its count limit. When you turn on your device it may stop at the 5 dots loading screen and freeze.
Here's a method for getting your device working again.
Download flasher-3.5:
For Nokia forums staff this is an OFFICIAL PUBLIC NOKIA TOOL. USING THIS TOOL DOES NOT AFFECT THE DEVICE WARRANTY. PLEASE DO NOT DELETE THIS POST AGAIN.
Flasher can be obtained from the Nokia website:
http://tablets-dev.nokia.com/maemo-dev-env-downloads.php
Download and install flasher onto your computer. For more information on using flasher, you can see the maemo page here:
http://wiki.maemo.org/Flasher
Turn off your N900
Remove the battery
Insert the battery.. but leave it off
Plug the USB cable into your computer.. This may not work in ALL ports on your computer. Sometimes ports at the back of the computer work better than those at the front.
Open the keyboard on your N900, press and hold the 'u' button and plug the USB cable into the N900.. keep the u button pressed.
The Nokia logo should appear on your device, a small USB icon should appear in the top right of the N900 screen. The backlight may not light up leaving the screen dark. You can release the u button now
NOW ENABLE R&D MODE TO START THE DEVICE
Use flasher application. On windows 7 this may mean running in windows xp mode
Open a cmd window (start run cmd) then enter these commands:
cd "\program files\maemo\flasher-3.5"
flasher-3.5.exe --enable-rd-mode
Flasher should run for a few seconds then exit.. If it hangs "waiting for suitable device" Try another port on your computer. Try a different computer. Ask questions here. Flasher doesn't always work on all machines
Remove the USB cable from your N900 and turn it on. It should boot up. Note that there is a small spanner icon under the Nokia logo
If your device still does not boot:
Check that the spanner icon is present when you turn the device on. If it is not, the device is not in R&D mode.. Start going through these instructions again
If the spanner logo is present and the device still does not boot, stop.. this process may not help you
Turn the N900 back off
Press and hold the u button on the keyboard and plug the USB cable in. Keep the u button pressed
The Nokia logo should appear on your device, a small USB icon should appear in the top right of the N900 screen. The backlight may not light up leaving the screen dark. You can release the u button now
NOW DISABLE R&D MODE TO START THE DEVICE
In the cmd window on your pc, re-run the flasher command with a different option:
flasher-3.5 --disable-rd-mode
Remove the USB cable and turn the phone back on
CHANGE ENABLE_OFF_MODE TO STOP RANDOM REBOOTS
I have written a tool to help stop the random reboots on N900 devices. This tool issues the following command
echo 0 > /sys/power/enable_off_mode
and updates the /etc/pmconfig file to make the change permanent
To use the tool you will need to install the rootsh package:
http://maemo.org/downloads/product/raw/Maemo5/rootsh/?get_installfile
Now download the fixpm.sh file:
http://chris.intrepid.cx/N900/fixpm.sh
Open an x terminal and type the following command
sudo gainroot
sh MyDocs/.documents/fixpm.sh enable
If you would like to disable the update, you can use the following commands:
sudo gainroot
sh MyDocs/.documents/fixpm.sh disable
Please click the kudos button if you found this helpful and please let me know if you have problems with the instructions, need help with them or if they didn't work
Message Edited by cpitchford on 28-Dec-2009 07:12 PM

Congrats!!
There are some steps you can follow to help stop your phone from rebooting...
Follow the steps in the first post under the section:
CHANGE ENABLE_OFF_MODE TO STOP RANDOM REBOOTS
Open these links on your N900:
Download and install the rootsh package:
http://maemo.org/downloads/product/raw/Maemo5/rootsh/?get_installfile
Download the fix script:
http://chris.intrepid.cx/N900/fixpm.sh
Save it in the Documents folder
Open an X terminal and run these two commands
sudo gainroot
sh MyDocs/.documents/fixpm.sh enable
Message Edited by cpitchford on 30-Dec-2009 11:57 AM

Uncloked nokia lumia 920 at&t and 4g off

How on at&t lumia 920 make change from 4g to 3g only or 2g only. Why we can do it like resto of WP8 users?

so in the:
settings/mobile network
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if not, then it was blocked by the ATT variant firmware.

Lumia 820 random reboot

Hi all my girlfriend has the nokia 820 and is experiencing some issues with randon reboot and poor batery life I have googled a fair bit and still cannot get a straight answere. Will this be fixed with the portico update or is it more likely there is an issue or 2 with the phone?
Thanks

The portico update does fix many of the random reboots that people have been experiencing. The other more common cause of random reboots is the sim card especially if it's old, worn, badly cut or faulty. A sim swap from the network would fix it in that case.

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Lumia 920 random reboots and dropped mobile data a...

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