Database Users

Sudden Loss of Data on Nexus S

Hey guys,
This is actually my first post here but I do A LOT of reading on this forum.
I didn't quite find anything regarding my question (or at least a solid answer), however, so I've decided to post it up.
Has anyone else experienced a sudden loss of data from time to time out of nowhere?
I go from having Full Green 3G bars to grey bars out of the blue. I've heard the green bars is to let you know that you are connected to Google services but I am not able to access anything that uses data.
For instance, when I open up the browser, I receive an error telling me there is no network connection. When I open up anything else that uses a data connection, Market, News, etc, I receive the same error about there not being a connection.
This would make sense if I was moving and going in and out of service areas, but it happens when the phone is simply sitting on my desk and not moving at all. I usually use it to listen to Pandora while at work and have noticed that the songs cut in and out due to this sudden loss of a data connection.
I went from a Nexus One to the Nexus S and have never, not once, lost my full 3G bars in this same exact location. I personally believe its a software bug of some kind and have high hopes for it being fixed in the future. The N1 had similar issues when it first launched and Google / T-Mo were able to remedy that for the most part.
I am actually on my third Nexus S because the first two had some type of hardware issue; the first one's back button didn't work or light up and the second one had a blown ear speaker and would sound like a blown speaker in a car. As an early adopter, I expected this, so it didn't bother me in the least bit.
ALL of them did the same thing, so I know it is not just limited to my exact phone. This is definitely something with the Nexus S in general (or the current build of Gingerbread).
Can anyone shine some light on this situation? Thanks in advance and keep up the great work here guys!
---------------------------------------------------------------
UPDATE: Here are a few steps that I have taken in order to solve my sudden loss of data issue. I'm not guaranteeing this will work for you, but it has worked for me and a couple of users here on the forum.
Do the following:
Activate / Use the Sim Card that came with the phone (this is to ensure you are using the latest sim cards)
Make sure you have a 4G internet plan. (No t-zones, No web2go -- FULL internet only)
Call T-Mobile and have ask them to Reset your phone with their Towers
Here's a more technical explanation posted by Johoja:
1) Having network selection set to manual ( i.e selecting 302490 or TMOBILE) will result in No Service on a reboot. Solutions: - Have to cycle airplane mode to get it to pick up service (can be done with automatically tasker) - OR Use automatic network selection. (you can force wcdma only but that will reset the SMSC which is annoying if you go in and out of wind away/home areas and you want to roam.)
2) Being in a area with no service for extended periods of time 5+minutes(subway, basement, etc) will result in a dead baseband, meaning once you come into an area with service the phone will not reacquire signal, airplane mode will not work as the baseband is now crashed, cant maunally search for a network. Have to reboot to get signal. Solutions: -Use tasker to cycle airplane mode on and off when in no service areas i.e) search signal 4 minutes, airplane mode on 10 minutes. This will keep the baseband from crashing and possibly save battery. -Use NoBars to accomplish thesamething ( taskergivesyou a bitmore flexibilty of course but harder to use) http://www.appbrain.com/app/nobars-b...omdryer.nobars - Use airplane edit to avoid turning wifi/bt off when airplane mode is on. http://www.appbrain.com/app/airplane...kalti.airplane
3) WCDMA perferred does not work. - No solution
http://www.google.com/support/forum/p/Google+Mobile/thread?tid=747f398a6c1bb2b9&hl=en&start=40:

I read one users response on a different thread regarding something similar to the issue that I am having.
They said T-Mobile told them to get a newer sim card and that this may remedy the problem. In my case, this has been the only constant in the 3 phones that I have been through. I have had the same sim card for about 3 years or so now.
I will try activating the sim card that came in the box with T-Mo to see if this remedies the problem. Since I'm at work right now I will have to try when I get home later.
Does anyone think this will have any affect what-so-ever?

The galaxy s phones when first released, all variants, had issues of signal dropping from full to zero bars while sitting in one place. I remember because there were YouTube videos of it All over and it was shortly after the apple antenna issue.
Not sure if or how it was ever resolved. But it seems that Samsung may just have this type of radio baseband performance if we see all these individual units doing this. I don't know maybe others can respond.

I have the same issue as the OP. I travel to the same location weekly with NEXUS ONE, signal never drops in the T-MO Country here locally, and streaming CNET POD CAST never a hiccup, however, with the new NEXUS S, I would lose DATA Connection only, while the 3G will show full signal. I had to reboot the phone to get the DATA back.
is it the S issue or 2.3 issue?
food for though....

If you have T-zones or Web2go or Phones 1st web, you will have problems

I had the same problem too, now I fixed the problem. The thing was that had the wrong data plan on the NS, i had my old web plan from my hd2 which seems like different from the one for the NS. I restarted my phone after 5 mins off and now i have my internet working beautifly. A T-Mobile rep said that it was an error in the system that made the phone think that that was the right plan for the NS for a few. A glitch you may say, but all you have to do is put the right data plan that all, easy. Hope this helped and have a wonderful holidays everyone.
Sent from my Nexus S using XDA App

this is happening to me too, last night for a little while and today for about hte last 4 hours can't get connection back. i have full white bars, with 3g icon but can't access anything

So I activated the new sim card last night and I'm still having the same problem. Albeit it doesn't happen as frequent, but it still does it nonetheless.
I will call T-mo again to verify my plan. I am on a 1500 Minute Family Plan which includes unlimited data and messages. I will see if they need to tweak something and let you guys know if this remedies the problem.

Ok, it seems like the issue has been resolved after I spoke to T-Mobile earlier today.
The rep on the phone verified that the data plan I was on was in fact the correct one. He said he was going to reset the signal from the towers to my phone to see if this would resolve the issue. He asked me to turn my phone off for about 15 seconds after we hung up.
Since then, I haven't seen the problem arise again so my guess is that it somehow fixed whatever was going on.
I'll let you guys know if this changes and the problem occurs again.
Sent from my Nexus S using XDA App

peakaboohaha said:
I have the same issue as the OP. I travel to the same location weekly with NEXUS ONE, signal never drops in the T-MO Country here locally, and streaming CNET POD CAST never a hiccup, however, with the new NEXUS S, I would lose DATA Connection only, while the 3G will show full signal. I had to reboot the phone to get the DATA back.
is it the S issue or 2.3 issue?
food for though....
Click to expand...
Click to collapse
What's with the CAPS? ?
On topic: i have a captivate and I can confirm that all galaxy S phones had droppend data. An official ota update fixes it so maybe you guys need to wait for something official. Isn't there a new firmware for the nexus S already? Try flashing that and see if you still have issues.
Sent from my GT-I9000 using XDA App

Doesn't every android phone from samsung have this problem?
I know the Moment has that problem, after 3 updates samsung called it quits, I still have to reboot mine 2 to 3 times a day for data lockups.

@timur525 Yea, I'm already on 2.3.1.
I manually updated the first hour it came out hoping that it would solve the issue. The problem was still there after the update.
Sent from my Nexus S using XDA App

I have exactly the same issue as the OP. Extremely annoying to reboot the phone every time it happens. One thing I have noticed is that my phone doesn't know its number. If I go to settings, about phone, the number says unknown.
Sent from my Nexus S using XDA App

Memnoch30 said:
I have exactly the same issue as the OP. Extremely annoying to reboot the phone every time it happens. One thing I have noticed is that my phone doesn't know its number. If I go to settings, about phone, the number says unknown.
Sent from my Nexus S using XDA App
Click to expand...
Click to collapse
That shouldn't affect anything. My number shows up in status.
I had this issue resolved a few months ago as the push-to-talk app Tikl requires this in order to use it.
I was having the problem even with my number showing up. Call T-Mobile and have them reset you with the towers like they did for me and see if that helps you too.
Sent from my Nexus S using XDA App

I posted about this same issue on wrong section of the forum. Ive had this issue ever since samsung vibrant. I have applanet installed on my phone and some of the app that i installed accessed my apn and totally changed my apn setting to "Sirious application disabled.epc.tmobile" or something like that so i wyped everthing off from the phone and so far i havent had the issue ever since yesterday. Also i had the locale and language setting to korean so im thinking that might be causing it also.
Sent from my Nexus S using XDA App

adamr240 said:
Doesn't every android phone from samsung have this problem?
I know the Moment has that problem, after 3 updates samsung called it quits, I still have to reboot mine 2 to 3 times a day for data lockups.
Click to expand...
Click to collapse
That's what I remember too. I think its just an issue with the radio Samsung uses in all their phones. Might not be a way to fix it if even their new phones like the nexus s still have this issue. They prob would have tweakdd it by now if they could.

Same problem here. Xmas eve on shift and I have a phone that had no connection whatsoever (not even phone capabilities) this may be the one thing that takes the phone back. (If it happens again)

robstunner said:
Same problem here. Xmas eve on shift and I have a phone that had no connection whatsoever (not even phone capabilities) this may be the one thing that takes the phone back. (If it happens again)
Click to expand...
Click to collapse
Have you called T-Mobile to see if they can give you a reset to the towers?
I had this done yesterday afternoon and haven't had the problem again since.
Also, if you'really using an old sim, I would suggest activating the one the phone came with just to be on the safe side.
If that doesn't help you then I would at least wait until just before your return period ends to see if there will be an update to address the issue.
Sent from my Nexus S using XDA App

Never had this problem with the captivates I've had.
adamr240 said:
Doesn't every android phone from samsung have this problem?
I know the Moment has that problem, after 3 updates samsung called it quits, I still have to reboot mine 2 to 3 times a day for data lockups.
Click to expand...
Click to collapse
Sent from my Nexus S using Tapatalk

Epiksol said:
Have you called T-Mobile to see if they can give you a reset to the towers?
I had this done yesterday afternoon and haven't had the problem again since.
Also, if you'really using an old sim, I would suggest activating the one the phone came with just to be on the safe side.
If that doesn't help you then I would at least wait until just before your return period ends to see if there will be an update to address the issue.
Sent from my Nexus S using XDA App
Click to expand...
Click to collapse
Ill give them a call on Sunday
Sent from my Nexus S using Tapatalk

Search button issue

Got my phone two weeks ago and I'm getting a problem with my search button. it keeps going off by itself like some one is pressing them and the speak now screen come up.
Any one else here having the same issue? Theres people in the internet also having the same problem but so far no answers.
Sent from my Nexus S using XDA App

I have this problem too but it only seems to happen intermittently when I am in an area with a poor signal (1 or less bars).
I've also taken to restarting my phone every day or two and It hasn't happened in awhile.

I had this problem with mine and when I looked it up it seemed I wasn't the only one. Most people seemed to think it was a hardware issue. I exchanged my nexus for a new one and the problem is gone so I guess it was hardware.
Sent from my Nexus S using XDA App

I got fed up so I called in for a new one sent to me. I hope this one is problem free!
It happens randomly but yes it seems to happen more when the signal is low.
I may have found the problem but not a solution. I noticed when playing with the phone that its always in Roaming mode. If you go to:
Settings>Wireless & Networks Settings>Mobile networks>
you will see that the "Data Roaming" feature is ENABLED which I believe has to be on since the phone is unlocked and you wont get data service if that is not enabled(for me anyway). Try Disabling this feature and just connect with a Wi-fI and play around with the phone. See if the issue still occurs. Mine stopped with this feature disabled and only comes back when it is enabled. The phone however is useless if this feature is not enabled if I'm not around any wi-fi.
Let me know if I'm right. Maybe someone good can create some sort of fix. looks like a software/program issue?

Having the same problem with my Droid X. Seems to be a software issue that is affecting Nexus S phones in Canada most severely, but also Droid X phones in the USA.
I'd include the link to the Google support forum thread but I'm too new of a user...

Flipst4r said:
I got fed up so I called in for a new one sent to me. I hope this one is problem free!
It happens randomly but yes it seems to happen more when the signal is low.
I may have found the problem but not a solution. I noticed when playing with the phone that its always in Roaming mode. If you go to:
Settings>Wireless & Networks Settings>Mobile networks>
you will see that the "Data Roaming" feature is ENABLED which I believe has to be on since the phone is unlocked and you wont get data service if that is not enabled(for me anyway). Try Disabling this feature and just connect with a Wi-fI and play around with the phone. See if the issue still occurs. Mine stopped with this feature disabled and only comes back when it is enabled. The phone however is useless if this feature is not enabled if I'm not around any wi-fi.
Let me know if I'm right. Maybe someone good can create some sort of fix. looks like a software/program issue?
Click to expand...
Click to collapse
Its not tied to roaming but to 3G. In your case turning roaming off turns of 3G.
Sent from my Nexus S

Over in the google forums, google has admited to the problem and will push out an ota to fix. No timeline
Sent from my Nexus S

Same problem here.. search button keeps triggering by itself. I see the button going on and off.. Trying to de-activate / unmap the button.. :silly:
Nexus S (Canada Rogers)
4.1.1 Cyanogenmod CM9 Final
Flipst4r said:
Got my phone two weeks ago and I'm getting a problem with my search button. it keeps going off by itself like some one is pressing them and the speak now screen come up.
Any one else here having the same issue? Theres people in the internet also having the same problem but so far no answers.
Sent from my Nexus S using XDA App
Click to expand...
Click to collapse

Had the problem last year on stock gingerbread with radio KB3, seemed to go away when fiddling with radio settings.
Have it again this year with ICS. Using radio KB3.
Notice when travelling in/out coverage zones. (Right at the edge, when coverage is weakest.)
Sent from my Nexus S using xda app-developers app

Supposedly a fix here:
http://forum.xda-developers.com/showthread.php?t=1815071

It doesn't provide a fix for us but there is a whole solution thread by the Samsung Fascinate section that seems to work!
http://forum.xda-developers.com/showthread.php?t=1551580
Since one of the solution is a kernel fix, maybe you can get one of the nice kernel developer to look at it to see if they can include it within their custom kernel

No Service

Hello,
I've had my phone for over a week now and it was great until yesterday. Now I am unable to make any calls with it but data still works. I have attached some screen shots below. Any ideas on how I can resolve this?
The problem occurred 2 days after I flashed XWKE2. I tried a factory reset, no change. Then flashing to XWKE1, no change. Then back to XWKE2, no change.
Oh and the sim's not at fault, works perfectly with my I900 Omnia.

Ugh... samsung phones. My galaxy S and Nexus S both have this issue and it seems they still don't know how to fix it.
Usually I would just cycle airplane mode on and off to fix it. Sometimes that would cause the phone to never come out of airplane mode though... in that case I had to restart the phone.
Ussy said:
Hello,
I've had my phone for over a week now and it was great until yesterday. Now I am unable to make any calls with it but data still works. I have attached some screen shots below. Any ideas on how I can resolve this?
Click to expand...
Click to collapse

Ussy said:
Hello,
I've had my phone for over a week now and it was great until yesterday. Now I am unable to make any calls with it but data still works. I have attached some screen shots below. Any ideas on how I can resolve this?
The problem occurred 2 days after I flashed XWKE2. I tried a factory reset, no change. Then flashing to XWKE1, no change. Then back to XWKE2, no change.
Click to expand...
Click to collapse
O2 are suffering outage on their system at the mo. Just Google "O2 outage" for details.
Started yesterday and is continuing, they have engineers working on the problem.

try changing your radio band to gsm only..maybe that will help for some troubleshooting
Sent from my GT-I9100 using Tapatalk

dinan said:
Ugh... samsung phones. My galaxy S and Nexus S both have this issue and it seems they still don't know how to fix it.
Usually I would just cycle airplane mode on and off to fix it. Sometimes that would cause the phone to never come out of airplane mode though... in that case I had to restart the phone.
Click to expand...
Click to collapse
Thanks but didn't help. This issue may be O2's fault not Samsungs.
greigster said:
O2 are suffering outage on their system at the mo. Just Google "O2 outage" for details.
Started yesterday and is continuing, they have engineers working on the problem.
Click to expand...
Click to collapse
They should really tell their affected customers when something like this happens. This most likely is the reason as I tried making a call using the same sim in my Omnia and it didn't work. Thanks for the heads up.
iznee said:
try changing your radio band to gsm only..maybe that will help for some troubleshooting
Sent from my GT-I9100 using Tapatalk
Click to expand...
Click to collapse
Thanks, tried it but didn't help.

There was a theft of equipment at a site near London, and it knocked out a large area of the country...
Goodness knows why a site of such strategic importance is unmanned, but it has caused a large blackspot...

Looks like service is back up now, for me at least. I probably should have googled 'o2 outage' before I reflashed my phone, but now I've turned off sending google usage data so hopefully my battery life will improve.

dinan said:
Ugh... samsung phones. My galaxy S and Nexus S both have this issue and it seems they still don't know how to fix it.
Usually I would just cycle airplane mode on and off to fix it. Sometimes that would cause the phone to never come out of airplane mode though... in that case I had to restart the phone.
Click to expand...
Click to collapse
Seems like yours might be more a case of ID TEN T error more than anything else because I've never experienced that on the Galaxy S or this Galaxy S II.

[Q] Losing google sync on Wifi

Hello all,
Quick question. Is anyone losing Google Sync / Data when on Wifi ?
Happens at home and work. Never had an issue with my GS3 or One X. On cell service it works fine.
update 11/24
Seems as though its a pretty widespread issue. Also , it is an issue with the connection it self, not just google sync.
I opened up a "google issue" , if you are having the same problems I recommend posting on the thread. It can be found here:
http://code.google.com/p/android/issues/detail?id=40065

aimetti said:
Hello all,
Quick question. Is anyone losing Google Sync / Data when on Wifi ?
Happens at home and work. Never had an issue with my GS3 or One X. On cell service it works fine.
Thanks
Click to expand...
Click to collapse
I have the exact same problem. But it only happens at home. At home we've wep and at work wpa2. Never had an issue with my GS2. On cell service it works fine for me too.
Is android 4.2 incompatible with 128-bit WEP???
This is driving me nuts! Any ideas community??

aimetti said:
Hello all,
Quick question. Is anyone losing Google Sync / Data when on Wifi ?
Happens at home and work. Never had an issue with my GS3 or One X. On cell service it works fine.
Thanks
Click to expand...
Click to collapse
I've noticed this too but seems to only be when the phone is sleeping? I'll turn screen on and bars will be gray and then turn blue. Did you guys turning off wifi optimization in wifi settings? I might try that next. It's some sort of power saving
Sent from my Nexus 7 using Tapatalk 2

hey guys,
I actually put in a google issue that seems to be picking up some steam.
http://code.google.com/p/android/issues/detail?id=40065
I have no clue what causes it at this point. It doesnt happen on all networks. Happens on my work network which is open / unsecured.
Also does it on my inlaws network which is wpa2 encrypted. However my home network which is also wpa2 encrypted is fine.
I recommend posting on the google issue to raise awareness

I added my experience, it seems to me like it's keeping wifi alive but not the Google connection. I have no issues on a Nexus 7 running 4.2 so it's not my router either but could be something specific to Nexus 4 hardware. I might try changing wifi sleep policy to never to see if at least this way HSPA will be connected when screen is off.
Sent from my Nexus 7 using Tapatalk 2

Anybody not having this issue? It's really annoying and for some reason even if I set wifi to stay on when plugged in or never it takes forever to disconnect so I still don't get alerts. Definitely appears to be an issue with 4.2 so i guess we just have to wait and hope it is fixed in next update.
Sent from my Nexus 7 using Tapatalk 2

mobilehavoc said:
Anybody not having this issue? It's really annoying and for some reason even if I set wifi to stay on when plugged in or never it takes forever to disconnect so I still don't get alerts. Definitely appears to be an issue with 4.2 so i guess we just have to wait and hope it is fixed in next update.
Sent from my Nexus 7 using Tapatalk 2
Click to expand...
Click to collapse
It's happening to me both with my N4 on 4.2 and also with my Transformer Prime, recently updated to 4.1.1. Only on specific networks.

chinly43 said:
It's happening to me both with my N4 on 4.2 and also with my Transformer Prime, recently updated to 4.1.1. Only on specific networks.
Click to expand...
Click to collapse
It actually happens to me on both new Nexus 4 and Nexus 7. Happens on home network (WPA2).

Any chance this could be a Google server issue? My Nexus 7 on 4.2 and GS3 running CM10 4.1.2 doesn't have issue either just my Nexus 4. Not sure what's causing it on my Nexus 4 but it's driving me crazy.
Sent from my Nexus 7 using Tapatalk 2

I'm pretty sure this is a general Wifi issue, and not limited to Google services. I've noticed that when the Wifi goes to sleep, I no longer receive incoming calls in GrooveIP or Sipdroid. I also don't receive email alerts until I turn on the screen, and the wifi re-activates.
EDIT: I ran a simple test. Loaded GrooveIP, called GV # from another phone, GrooveIP rang. Let the phone sit for 10 minutes to fall asleep. Called again. Didn't ring. I then loaded up Advanced Wifi Lock to prevent the phone from going asleep. The first call worked, and so did the one after 10 minutes. So, this definitely seems like an issue that impacts any service depends on a reliable Wifi link - not just Google's Sync services. I ran the same test with Sipdroid, and got identical results.

jasonwc said:
I'm pretty sure this is a general Wifi issue, and not limited to Google services. I've noticed that when the Wifi goes to sleep, I no longer receive incoming calls in GrooveIP or Sipdroid. I also don't receive email alerts until I turn on the screen, and the wifi re-activates.
EDIT: I ran a simple test. Loaded GrooveIP, called GV # from another phone, GrooveIP rang. Let the phone sit for 10 minutes to fall asleep. Called again. Didn't ring. I then loaded up Advanced Wifi Lock to prevent the phone from going asleep. The first call worked, and so did the one after 10 minutes. So, this definitely seems like an issue that impacts any service depends on a reliable Wifi link - not just Google's Sync services. I ran the same test with Sipdroid, and got identical results.
Click to expand...
Click to collapse
That's a bad example because GrooveIP uses GTalk on the backend so you're still using Google Services. What makes this more puzzling is I went to a Brooklyn Nets game last night and they have crazy fast open WiFi at the place while my phone was connected, it appears that all notifications worked even when the screen was off. I was too busy watching the game to pay much attention but I did get emails, etc. while the screen was off and I was on Wifi. The main difference between that WiFi and my home Wifi is the one at the arena had no security at all.
I've been playing around with my router and tweaking settings but nothing is working and I'm pretty sure this is a phone software issue. What I want to find is someone with 4.2 on a Nexus 4 who is NOT having an issue. I'm starting to wonder if this is an app or Google Service sync related issue.
My Nexus 7 running 4.2 does NOT have any issue on the same exact Wifi so I'm wondering if it's some app or setting on my phone that's causing this

For me it definitely seems to occur more on unsecured networks.
Not only is it google sync but the connection in general.

Anybody with this issue brave enough to try a factory reset? If it doesn't get solved soon I'll probably flash CWM recovery, do a nandroid and then do a factory reset to see if that fixes it. At least that way if it doesn't I can restore backup.
Anyone want to try now?

mobilehavoc said:
Anybody with this issue brave enough to try a factory reset? If it doesn't get solved soon I'll probably flash CWM recovery, do a nandroid and then do a factory reset to see if that fixes it. At least that way if it doesn't I can restore backup.
Anyone want to try now?
Click to expand...
Click to collapse
yea i already tried that before , no change

aimetti said:
yea i already tried that before , no change
Click to expand...
Click to collapse
Weird! So you did a factory reset and still nothing? Did you still have the issue before you restored apps? I mean like completely stock with just what comes on the phone. If you still have the issue with that, then we know it's not app related.
I might also try downloading and reflashing the system image...maybe something got screwed up in the 4.2 update??

mobilehavoc said:
Weird! So you did a factory reset and still nothing? Did you still have the issue before you restored apps? I mean like completely stock with just what comes on the phone. If you still have the issue with that, then we know it's not app related.
I might also try downloading and reflashing the system image...maybe something got screwed up in the 4.2 update??
Click to expand...
Click to collapse
Since I flashed Franco boot 5, the problem has stopped (i think). Flashing stock/factory reset didn't help me.

mobilehavoc said:
Weird! So you did a factory reset and still nothing? Did you still have the issue before you restored apps? I mean like completely stock with just what comes on the phone. If you still have the issue with that, then we know it's not app related.
I might also try downloading and reflashing the system image...maybe something got screwed up in the 4.2 update??
Click to expand...
Click to collapse
lol yea , completely stock.
Also flashed the stock image.
I have franco kernel 5 already , when I go back to work on Monday I will see if its still doing it.

aimetti said:
lol yea , completely stock.
Also flashed the stock image.
I have franco kernel 5 already , when I go back to work on Monday I will see if its still doing it.
Click to expand...
Click to collapse
Interesting - is Franco Kernel 5 stable enough to use as a daily driver? Any issues? I'm willing to flash it now to test it but don't want to make the phone less stable.

ya i have had 0 issues with it , from what he has said its not a ton different from stock just some basic fixes

aimetti said:
ya i have had 0 issues with it , from what he has said its not a ton different from stock just some basic fixes
Click to expand...
Click to collapse
Strange then that it might fix this issue since the wifi module is stored in system and he's not overwriting it so something in the kernel itself
Sent from my Nexus 4 using Tapatalk 2

Factory t-mobile S7e losing mobile network connectivity

so this is the second S7e and second SIM that I have been having this issue with. The phone will lose connection to the mobile network and the ONLY way to recover is to reboot phone. Reset Network Settings doesn't do anything. Toggle airplane mode doesn't do anything. Search for Network Operators doesn't do anything. I have a third phone on the way - but has anyone around here heard of or experienced similar? Am I missing something that I should be doing to correct this?
Thanks in advance

I too have this problem. Got a replacement refurbished phone under warranty and the phone has this problem

krishelnino said:
I too have this problem. Got a replacement refurbished phone under warranty and the phone has this problem
Click to expand...
Click to collapse
Did you pay the $20? I didnt want to pay the 20 so i sent the device to samsung. Should get it back friday or monday. The issue is definitely phone related. Im using a verizon s7 now and no issues like that arose. I even tried new sim.. My father is having same issue t-mobile s7 edge

Yes i had to pay 20. And it's disappointing I am having this issue with the replacement phone. I am having this problem on the U firmware as well.
Sent from my SM-G935U using Tapatalk

I've suffered the same issue from time-to-time and just do a restart....annoying as hell to be honest

Are you guys always in the same location when this is happening or is it just whenever and wherever? Or is it happening a one certain place where cell signal isn't that great? I had this same issue BUT only in my house so I had to get a network range extender from t-mobile to use at home.

This happens to me all the time. It's so annoying. At work, in the car, at home--it doesn't matter where I am. Have reset firmware multiple times and even rolled back once too. I think it has to do with the latest software because I never had this issue before the Fall/Winter. Hopefully Nougat fixes this!

Quickvic30 said:
Are you guys always in the same location when this is happening or is it just whenever and wherever? Or is it happening a one certain place where cell signal isn't that great? I had this same issue BUT only in my house so I had to get a network range extender from t-mobile to use at home.
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I happens randomly in different places. For me i lose complete signal, and then only get back signal without data. I have to restart when this happens to get back data. Annoying as hell !

frappe33 said:
so this is the second S7e and second SIM that I have been having this issue with. The phone will lose connection to the mobile network and the ONLY way to recover is to reboot phone. Reset Network Settings doesn't do anything. Toggle airplane mode doesn't do anything. Search for Network Operators doesn't do anything. I have a third phone on the way - but has anyone around here heard of or experienced similar? Am I missing something that I should be doing to correct this?
Thanks in advance
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I am having the same problem, this will be my 3rd phone 4th sim. I wish I knew how to fix it

I would try flashing different radios/modems, its worth a shot. Maybe try flashing the "U" firmware radios.

Nougat will fix it
My wife and I had the same issue on our tmobile s7 edge ... we got the 7.0 beta and now the issue is gone .... I bet it's radio and software related ... 7.0 will be out by the end of the month hope that helps...

I had this issue with my phone, and it was a huge pain. The biggest concern: I didn't know when my phone was off network (voice, data, etc.). The fix, for me, was simple: a new SIM card.

You may have an issue from a rejected permission on an app.
Had the same issue before but I did a hard reset and realised that I changed permissions on an app that wasn't written for 6.1.

ronstopable12 said:
My wife and I had the same issue on our tmobile s7 edge ... we got the 7.0 beta and now the issue is gone .... I bet it's radio and software related ... 7.0 will be out by the end of the month hope that helps...
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I hope so! Been waiting for that before I try anything drastic, even though this issue is a huge pain in the ass. I'm glad others have come out of hiding to express their concerns with it as well. I thought I was the only one for the longest time having this issue.
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jimfun said:
I had this issue with my phone, and it was a huge pain. The biggest concern: I didn't know when my phone was off network (voice, data, etc.). The fix, for me, was simple: a new SIM card.
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Many of us have tried new SIM cards, but it's worth a shot if it's still not working consistently after Nougat is released.
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geeserver said:
You may have an issue from a rejected permission on an app.
Had the same issue before but I did a hard reset and realised that I changed permissions on an app that wasn't written for 6.1.
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My and my friend's phones are both running pure 100% OEM Tmo stock without any apps disabled or touched at all and we have this issue and have done multiple resets. Pretty sure it's an actual hardware defect, or hopefully just a software one with the modem/radio.

krishelnino said:
Yes i had to pay 20. And it's disappointing I am having this issue with the replacement phone. I am having this problem on the U firmware as well.
Sent from my SM-G935U using Tapatalk
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I was thinking about going that route. But I wasnt sure what condition the phone would be. How was you condition?
I sent mine to samsung and the things they replaced is the Coaxle cable "antenna" replaced 3 of them. I have been using the s7 from verizon on the U firmware so havent seen if it is fixed.

4ringsa6 said:
I was thinking about going that route. But I wasnt sure what condition the phone would be. How was you condition?
I sent mine to samsung and the things they replaced is the Coaxle cable "antenna" replaced 3 of them. I have been using the s7 from verizon on the U firmware so havent seen if it is fixed.
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I received a refurb. Other than this problem, the phone is alright. I noticed this problem on receiving the phone it was running on T firmware. Then I switched to U firmware and radio but no difference. I called customer support yesterday, they said to go to a retail store to get the phone replaced. My worry is going through this process again and if I receive a bad device again what to do? After all refurb phones are like playing Russian roulette!
Sent from my SM-G935U using Tapatalk

I just had this start happening on mine... I really wish they would release nougat already. It is ridiculous they won't post an Odin flashable version of the release candidate if it does indeed fix the issue.
I also think its a specific tower configuration that is causing the issue that the radio can not understand. (Maybe 3xCA). Its happening in the same areas every time.

I just started having this problem in the past month. All at once I've been getting BT sometimes turning off, mobile networks failing to reconnect after I visit a no/low signal area (such as after a plane trip when the phone was in airplane mode). I've also seen wifi mode fight my attempts to turn it back on sometimes - toggling itself on and off a couple of times per second until I poke at enough settings to stop it. When BT turns itself off I have trouble turning it back on, sometimes it just goes back on, sometimes it refuses after a number of tries and if I wait an hour it goes back on just fine.
The folks at a BB Samsung kiosk said they could reflash it if I wanted to go that route, but that the nougat release would be out soon so it might be better to just wait for that. Has anyone had a Samsung rep re-image their phone to try to solve this?

flarbear said:
I just started having this problem in the past month. All at once I've been getting BT sometimes turning off, mobile networks failing to reconnect after I visit a no/low signal area (such as after a plane trip when the phone was in airplane mode). I've also seen wifi mode fight my attempts to turn it back on sometimes - toggling itself on and off a couple of times per second until I poke at enough settings to stop it. When BT turns itself off I have trouble turning it back on, sometimes it just goes back on, sometimes it refuses after a number of tries and if I wait an hour it goes back on just fine.
The folks at a BB Samsung kiosk said they could reflash it if I wanted to go that route, but that the nougat release would be out soon so it might be better to just wait for that. Has anyone had a Samsung rep re-image their phone to try to solve this?
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If you were able to fix without a reboot you didn't have the same issue as this.

rocket31337 said:
If you were able to fix without a reboot you didn't have the same issue as this.
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I guess I wasn't clear about that as I have several problems that are probably related, but behave a little differently.
BT dropping - can usually turn it back on, but sometimes it refuses. Usually don't need to reboot to fix this.
Wifi dropping - often have trouble turning it back on and have seen the widget toggle off and on repeatedly by itself. Sometimes have to reboot to fix that.
Mobile Network data (and voice sometimes) dropping - usually have to reboot. I think I may have recovered that once without a reboot, but the other few times it's happened in the past month since it started I have rebooted and that fixed it in all but one of the reboots - one time I rebooted and still had to fiddle with it a bit after the reboot before it came back. That may have been because I played too much with the network settings before the reboot and so had to undo that damage after the reboot. But, definitely rebooting is a fairly reliable step in fixing this problem.
All 3 started happening around the same time which is why I thought it was a software issue (I remember a small update a little over a month ago, but forget the details of it). It's nice to hear that others also have the mobile network problem, but if that is isolated in those cases then maybe I'm not seeing exactly the same problem. But, it is clear that rebooting is almost always required to get my mobile network data back so that again suggests that at least that part is the same as what this thread is discussing.
In looking at the T-Mobile updates page for the S7 Edge I see that the version I have (G935TUVU4APK1) was updated in early November - which tracks when I started having problems, and it includes a fix for "Domestic data roaming improvements", which definitely sounds like they may have played with the radios.
I am so ready for the Nougat update...