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I'm now on my 2nd Focus because of this problem. 1st off, I do have an SD card in there but have not had any restart or any problems which seem to be due to the card.
I had the first Focus for about 3 weeks when all of a sudden it wouldn't connect to any cellular data. No EDGE or 3G. It would connect to WiFi and I could still make/receive calls and texts. But no internet or MMS. So I chatted with AT&T. End result: restore phone. I restored the phone WITH the same SD card in it and it worked fine...until the next day. Same problem, lost all cellular data connections. So then I chatted with Samsung. They suggested it was due to some 3rd party apps I installed (which I though was BS). So I ended up going into the AT&T store and they gave me a new one.
So I've had the 2nd Focus for about a week now and everything was working perfectly fine (with the same SD card in it). But about an hour ago, I lost all cellular data AGAIN! Restarted, toggled data connection off then on again, but still won't connect.
Could this problem really be caused by the SD card (as AT&T said?) I just don't see how an SD card can mess up cellular data. I know it does cause performance problems for some people, but cutting off data?
I guess nobody else is having this problem?
I went ahead and restored my phone again since I couldn't live without 3G connection. Still don't understand what's causing the problem though.
bremic9188 said:
I guess nobody else is having this problem?
I went ahead and restored my phone again since I couldn't live without 3G connection. Still don't understand what's causing the problem though.[/QUOTE
Obviously, you've tried removing the SD card? AT&T and M$ have yet to announce any compatible cards, officially. People have reported issues with the cards up to several days after installing them.
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wspaw said:
Obviously, you've tried removing the SD card? AT&T and M$ have yet to announce any compatible cards, officially. People have reported issues with the cards up to several days after installing them.
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When I remove the SD card without restoring it just reverts back to a new install (since it can't see some of the data on the card I'm guessing) and the 3G works. I put the SD card back in and all my data is back but the 3G or any cellular data connection is gone again.
After restoring it this last time, I get 3G back (as usual) with the SD card still installed and have had 3G since I restored it.
It just seems like I'm the only person having problems with my cellular connection and the SD card, and I don't understand how the SD card can affect that. I understand loss of data or performance issues but not loss of 3G...
And as far as when I usually lose 3G, I have had info saved on the SD card for days before. Each time I've restored with the SD card in I sync all my music back to it and it definitely rolls over to the SD card. I haven't put anything on it this time to see if it will lose connection within a week like it's done before.
bremic9188 said:
When I remove the SD card without restoring it just reverts back to a new install (since it can't see some of the data on the card I'm guessing) and the 3G works. I put the SD card back in and all my data is back but the 3G or any cellular data connection is gone again.
After restoring it this last time, I get 3G back (as usual) with the SD card still installed and have had 3G since I restored it.
It just seems like I'm the only person having problems with my cellular connection and the SD card, and I don't understand how the SD card can affect that. I understand loss of data or performance issues but not loss of 3G...
And as far as when I usually lose 3G, I have had info saved on the SD card for days before. Each time I've restored with the SD card in I sync all my music back to it and it definitely rolls over to the SD card. I haven't put anything on it this time to see if it will lose connection within a week like it's done before.
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Yeah, it's tough to imagine a link between the SD card and the data connection, but, clearly there is. It may be in the manner that WP7 addresses the memory. It treats it as one large drive and, perhaps, after the hard reset some of the system data that deals with the data connection gets written onto the card?
Who knows? Pretty strange. It'll be interesting to see what happens now.
Thought it was time for an update on the situation...
It happened again and I had to restore the phone 1 more time a week or less after my last post. I did leave the SD card in as I normally do. The only difference was I didn't put ALL my music when I synced it (all my music adds up to well over 8GB). Instead I only put a little to where the total space taken was far less than 8GB. As I kept installing apps, taking pics/vids, blah blah blah it is now at the 8GB mark. There is a little noticeable lag now, but nothing unbearable at all. What hasn't happened (yet) is the loss of cellular data.
I'm hoping it doesn't do it again, or the upcoming update will address some SD card issues as well as copy paste. *crosses fingers*
considering it keeps happening and the 1 mainstay is the sd card....id try it without the card.... if it runs smooth...its the card.... if it screws up its something else... just too simple not to try... from what ive read, sd cards have caused a wide variety of problems, from just reboots to the extreme of bricking phones....
you havent even mentioned what brand and class card it is... it could be one of the unstable ones... if so theres your answer...
kawgirlval69 said:
you havent even mentioned what brand and class card it is... it could be one of the unstable ones... if so theres your answer...
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It's a Kingston 16GB Class 4, so it's confirmed working. It does seem the SD card is the problem, but (1) I don't get how the SD card can cause cellular data failure and (2) why am I the only one that is having the problem? (at least it seems like I'm the only one having a problem with losing cellular data)
bremic9188 said:
It's a Kingston 16GB Class 4, so it's confirmed working. It does seem the SD card is the problem, but (1) I don't get how the SD card can cause cellular data failure and (2) why am I the only one that is having the problem? (at least it seems like I'm the only one having a problem with losing cellular data)
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well just might be a bad card... not everything that makes the shelf is perfect...
as for the why.. like i said before , there are a variety of problems... just not restarts and losing data... ive seen locking in airplane mode...ive seen bricking...etc
like i said take it out and try it.. its the only way to be sure... if it is.. try another card format the phone... put the new card in and format it 2 times and go from there....
"definition of insanity.. repeating the same action over and over again, expecting a different result..."
I don't have any card at all, but my focus also losing all data connection. It disconnects from network during switching between several cell towers. I need to reset my phone several times during my travel from home to work. It looses connection always in the same place
StasCh said:
I don't have any card at all, but my focus also losing all data connection. It disconnects from network during switching between several cell towers. I need to reset my phone several times during my travel from home to work. It looses connection always in the same place
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I'm having the same problem, the data connection works fine but there're times when it says it's connected but it can't download or upload anything, the only way to fix this is by turning off and on the phone and then the data connection works again. Not even the ON/OFF switch for data in settings fix the problem.
I also have problems with the signal in general, sometimes it loses connection to my service provider and after some seconds it finds the service again, maybe a problem with the radio?
Samsung Focus: No memory card installed, using it in Venezuela (Movistar), 3G/E data service.
I already reported this issue to the WP Support Forums, I think they're investigating the problem because I haven't had any feedback since the last time more than a week ago, here it is:
http://social.answers.microsoft.com...7/thread/b5928f07-c817-4096-9e9f-21d3088e8c2d
If somebody has this problem feel free to vote for my post to let them notice that it's not an one-person problem
Same issue
I am on Fido/Rogers in Canada and get the same problem from time to time, no SD card installed.
In my case, it happens after I lose signal for a while, like garage or no signal area...When I get a signal back, the data portion just won't connect, even though I can make and receive calls and my phone displays 3G.
Reboot takes care of it.
Just found this thread. I've been having this issue for the past two days. Have never installed an SD card in my Focus. I tried the HSUPA hack a few days ago. I thought that was the cause. So I asked for help to undo the hack.
I've only had my Focus for a couple of days.
I was experiencing a lost of data connection eariler today. I think it's to do with your location/network provider.
On my X1, I use to turn flight mode on and off to fix the problem - forcing the phone to reconnect.
Sometimes the signal is GPRS and other times 3G.
How many of you experiencing this are using the Facebook app? I was having the problem today (it started this morning) and after uninstalling the FB app (where i was noticing the problem most) and a soft reset, I'm not seeming to have the problem.
Syst3m said:
How many of you experiencing this are using the Facebook app? I was having the problem today (it started this morning) and after uninstalling the FB app (where i was noticing the problem most) and a soft reset, I'm not seeming to have the problem.
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So now that I think about it, when i wasn't receiving data, the phone showed full signal, even though in my office i usually get 2 bars. After the uninstall and soft reset, im now showing the 2 bars. No idea if it was causing this, but seems a strange thing to have happen.
i do have the same problem. deactvating data connection and activating again doesnt work. You dont need to restore phone to make it work again, just go to settings -> cellular -> network selection ... remove automatic and wait till it finishes searching..select you operator or automatic again it should reset your connection settings and 3g/edge should work again.
mine is an unlocked AT&T might be a problem with the unlocking mecanism if you guys also using unlocked phones.
not sure how to solve it yet.
Syst3m said:
How many of you experiencing this are using the Facebook app? I was having the problem today (it started this morning) and after uninstalling the FB app (where i was noticing the problem most) and a soft reset, I'm not seeming to have the problem.
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Never used Facebook App. Did notice when it happened today, that after I close IE I had 7 yahoo emails. I'm wondering if the limited multi-tasking carries over to data. When the phone is syncing, maybe it shuts other connections down.
Go to the diagnotic app
Go to the diagnostic page post #150 I believe this will fix you issues
http://forum.xda-developers.com/showthread.php?t=839154
not working ((( i have the same situation, and already try this
and it starts after mango update
Hey everyone,
Had the Galaxy S2 since Saturday, unlocked the device, everything was working great. Out of no where, yesterday the phone still shows the H+ logo and full signal, yet i cannot send, receive text messages, initiate a data connection or make/receive phone calls.
In order to get all that ability back, you either have to 1) reboot the device, or 2) turn airplane mode on then off.
This only works for roughly 10 minutes before it all happens all over again.
I tried swithing to WCDMA only, but issue still persists, even tried some menu codes I found on another thread to disable H+ but the same thing happens.
This is currently happening on the bell shipped rom with no root or anything of the sort.
Has anyone experienced this?
I've searched for hours but can only really find complaints of data connection loss only. In my case it's everything. Data / SMS / Cell
Any help would be greatly appreciated.
I feel your pain, even though I have an XEU unlocked GS2, I've updated it with every update from kies hoping the issue would resolve.
Even with the latest KF3 update the issue persisted, however the phone could be used on Rogers with no issues, on Telus data drops constantly.
Disabling fast dormancy didn't do much to help.
However since updating the phone to KG3 2.3.4 yesterday I have not had the issue happen again. For the first time since I got the phone it no longer drops the data connection on Telus.
virtuatony said:
I feel your pain, even though I have an XEU unlocked GS2, I've updated it with every update from kies hoping the issue would resolve.
Even with the latest KF3 update the issue persisted, however the phone could be used on Rogers with no issues, on Telus data drops constantly.
Disabling fast dormancy didn't do much to help.
However since updating the phone to KG3 2.3.4 yesterday I have not had the issue happen again. For the first time since I got the phone it no longer drops the data connection on Telus.
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Thanks for the quick response. Was it only your data that disconnected, or everything else?
Also, may you please link me to the update? I suppose I could use that as a last ditch effort before exchanging the device before its too late.
My issue has changed over the past couple months, originally the phone would report that it dropped the network and when it came back data wouldn't work until airplane off then on or a reboot.
Lately things seemed fine with occasional data drops until yesterday, when it had full signal but I couldn't use data, sms or make a call. It was basically a paper weight until I updated it. The link to the file which has everything you need to update from samfirmware.com is below.
http://hotfile.com/dl/124839941/a17b394/I9100XXKG3.rar.html
*edit - I'd make sure you have a back-up of your current firmware in case you need to flash back and return the phone.
I have the exact same problem. Bought a bell gs2 unlocked it and now with telus. My data dropped constantly and now I'm using the newest litening rom and now it only drops maybe once or twice a day so a huge improvement
Sent from my GT-I9100 using XDA Premium App
If it's any consolation, I ran my Virgin SIM over the weekend (just to burn up the data I had to buy for a 1 month) and the same thing happened on stock firmware.
In my case, it would put me in "emergency calls only" mode, saying I wasn't authorized for the network (i.e. it wasn't recognizing my SIM). Tried the usual stuff (re-seating SIM, using the Telus SIM, reboots, cache wipes, network WCDMA/GSM selection etc), and nothing fixed it, it just seemed to come back on its own when it was good and damned ready no matter which SIM I used.
Flashed to "Frankenstein" KG3 on Sunday, and neither the Virgin or Telus SIM has lost network since then, in the same areas. WiFi seems to be working better too.
Greetings All,
Got my Xoom back from its 4G upgrade last week and I have been noticing some issues with connecting over the 3G/4G network now. I use pocketcloud to connect to computers over RDP and when connected over WiFi networks, it works fine (computers connected to networks other than one I am connected to WiFi on), but when using the 3G or 4G connection on the Xoom, there is a network connection error. I tried it out on my incredible and it works just fine. Also, sometimes I get an error "cannot update" from the engadget app.
Also, the new market would not install some of my apps, like ThinkFree Office for example, I worked around it by using the web interface of Android Market on my computer and it worked fine.
I sent in the Xoom completely reverted back to stock 3.1, I recieved it with 3.2.2 stock. I cleared memory after I got it back and did a factory data reset. Not rooted, and no other modifications have been made.
I'm at a loss as to why some connections are causing the network to flake out.
Regards.
I read on here that some of the app installation issues were due to the possible change in pixel density that took place with the upgrade but that is something you can change back if you root.
I'm noticing the same exact issue and have no idea what is causing it - let's see if together we can figure it out. It's extremely flaky so far.
I got my upgraded Xoom back today and noticed the exact same issue. It wouldn't activate on the setup screen and prompted me to reboot. After reboot, it connected to 4g just fine and showed the 4g icon below.
I then went into the market to install my apps. It installed Thumbkeyboard just fine but when I went to install others, it stopped at 8.03k on the download. Did this for every app i tried.
I turned on wifi, connected to my AP and the downloads worked just fine. Even tried a couple reboots before doing this and it didnt work.
My 4g signal is about 75% so it's strong.
Very strange...
Power off
Remove SIM.
Put SIM back in
Power on
Done. Worked for me.
I take it back, still having all kind of issues.
just got mine back this morning, and it wont connect to anything! no 3g, no 4g, no wifi... nothing. WTF!?!?! restarted, pulled sim, etc...
going to do restore next and see what that does.
Same connection problems
Got my LTE upgrade back.
When I am at work I cannot update Touchdown from inside the firewall (not sure why) so I flip back to Verizon to refresh by shutting down the wifi. When I do, I noticed that the xoom would drop the connection (three bars) and then not reconnect. When I try to turn on the wifi it stays grayed out and neither system will connect until I reboot.
Went around with VZW tech support, they reported that the unit was registering on their network but not connecting. Sent back to Moto for further testing, got the unit back (they reported it was a software fix, no other data) but the unit continues to have the problem.
Stock 3.2.2 xoom with LTE
Any suggestions appreciated....
Has anyone been able to resolve this issue?
Hello, I am still having all kinds of connection issues after I received my device from Motorola. After a reboot the xoom will connect to the Verizon network but If it stays idle for some time, I lose the connection and it will not connect until I reboot the device.
sent it for replacement
I had the same problem. I had to send it back once for 'repair' (no improvement) before Motorola replaced the unit due to an undefined hardware problem. Keep calling or go to a store.
I had something similar when I got my Xoom back. Apparently the geniuses at Verizon never added the SIM to my account. Took multiple calls/emails to get it corrected. Once someone realized it was missing it was corrected in about 10 minutes.
nirgal2002 said:
I had something similar when I got my Xoom back. Apparently the geniuses at Verizon never added the SIM to my account. Took multiple calls/emails to get it corrected. Once someone realized it was missing it was corrected in about 10 minutes.
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In your case did you have sporadic connection or, without the SIM number, were you completely unable to connect?
BTW, I missed this thread when it was fresh (as I was traveling) but I've had the exact same issues since the LTE upgrade. When it happens, the only way to reconnect is to reboot.
I used to be able to get it to reconnect by switching airplane mode on and off. Sometimes I had to reboot. Friday, even that did not help. I was furious. The next day, the update pushed out to me via wifi. I guess the servers recognized me as a customer again even though I already had a 2 year contract. Some people got the dataplan because they don't use wifi. I love the shortsightedness of the people who come up with this... not.
At least I haven't gotten disconnected since the patch was installed.
Sent from my Xoom using xda premium
I had to unroot my device for 4G to start working normal.
My N4 got here today and put my t-mobile sim card in, but I'm not getting any service at all. Even with the sim card inserted, it still says "Emergency Calls Only." I tried connecting to tmo manually in the mobile networks page, but it just errors without connecting. What's strange is that on the phone status screen, my phone number and IMEI are displayed correctly so I don't think my sim card is the issue.
It shipped with 4.2.2, so I tried reverting back to 4.2.1 since I saw a couple comments about how the 4.2.2 update was causing reception issues, but still nothing. Tried flashing different radios/kernels/roms, but can't seem to get anything to work. I'm not having any other connectivity issues (wifi, bluetooth, etc) either. Could anyone shed some light on this issue? I'm stumped.
dudeimawesome said:
My N4 got here today and put my t-mobile sim card in, but I'm not getting any service at all. Even with the sim card inserted, it still says "Emergency Calls Only." I tried connecting to tmo manually in the mobile networks page, but it just errors without connecting. What's strange is that on the phone status screen, my phone number and IMEI are displayed correctly so I don't think my sim card is the issue.
It shipped with 4.2.2, so I tried reverting back to 4.2.1 since I saw a couple comments about how the 4.2.2 update was causing reception issues, but still nothing. Tried flashing different radios/kernels/roms, but can't seem to get anything to work. I'm not having any other connectivity issues (wifi, bluetooth, etc) either. Could anyone shed some light on this issue? I'm stumped.
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Did you get the N4 from Google Play or T-Mobile? If not, check that the IMEI is not blacklisted.
http://www.t-mobile.com/verifyIMEI.aspx
Is this a MicroSIM, or a cut down MiniSIM?
Cut SIM's known to have issues.
When you reverted to 4.2.1, did you flash the radio image as well?
http://forum.xda-developers.com/showpost.php?p=36400943&postcount=1
Unless you need LTE, I would re-flash JDQ39 and re-lock the bootloader
https://developers.google.com/android/nexus/images#occam
If T-Mobile shows in a network scan, you should be able to connect. Visit a T-Mobile store to swap SIM's, otherwise you may need to RMA it.
I bought it on ebay. Checked to see if the IMEI is blacklisted but according to T-Mobile the IMEI is clear for use.
I am using the same sim card from my galaxy note, but I had it cut at a t-mobile store. The guy even verified that it was cut properly by putting it in his galaxy s3 and it worked fine.
When I reverted to 4.2.1, I tried using both radios 0.48 and 0.33, but neither did anything.
I'll try your last suggestion and report back.
Thanks
The N4 is super picky about cut Sim cards
Even if it works on another phone , it probably won't work in the Nexus .
Sent from my Nexus 4 using xda app-developers app
Make sure the gold contacts on the back are all getting touched , you should see lightly indented lines on the back from putting it in your slot , if it doesn't work try to get a precut micro sim from T-Mobile
Sent from my Nexus 4
It's pretty simple and the topic explains it almost fully.
I noticed a few months back that I wouldn't get any Data Connection on Project Fi and most of the time I'm on WiFi and took a while to notice.
I simply factory reset the phone and it came right back to working after I completed Setup...not sure if that had anything to do with it now, though.
I had a repeat, for the sake of full disclosure, I had just updated TWRP, updated busybox pro by uninstalling and updating and reinstalling busybox, and flashing SuperSU 2.82 Beta .zip
I'm not sure if it was broke before this or not, but it couldn't have been but for a few days I guess....
Resetting Network Settings, Factory Resetting via TWRP (Wipe) and the regular "Settings" route and even going into the diagnostics and switching the radio on and off while switching from LTE Only to WCDMA, GSM, switching everything on and off...desperately, and putting it back yeilds errors when trying to "Run Ping Test" every time....
Service lists as Connected....Activation after setup shows my phone number and "The Data Connection Should Be Active" like normal. Blowing the SIM slot out, "wiping off" the SIM card and putting it back in - nothing...
I don't know what else to try, I contacted google finally and think I may request a new SIM card but I doubt that is it since it read my phone number and "activated" the phone, and it can receive voice calls (ONLY)
What baseband are you using?
Do you know about the dialer codes? https://forum.xda-developers.com/nexus-6/general/project-fi-fi-dialer-codes-to-force-t3132393
I have also noticed that freezing or removing hangouts causes issues, especially with connecting to Sprint towers.