4G LTE suddenly disappeared - Sprint Samsung Galaxy S7 Questions & Answers

I've been using the phone for a week on the AT&T network with 4G LTE. But suddenly it disappeared. I'm just left with 4G. Is there a solution to fix this? Thanks.

Try a phone restart. If that doesn't fix it, update your PRL/Profile under-Settings-System update. If the problem persists, then it is a network issue, not a phone issue.

makane716 said:
Try a phone restart. If that doesn't fix it, update your PRL/Profile under-Settings-System update. If the problem persists, then it is a network issue, not a phone issue.
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In order to prevent the hands free activation I needed to disable system update on the phone. Hence I couldn't update it. But enabling system update I couldn't update the PRL either.

Related

[Q] Market Apps Won't DL W/O Wifi

Hi guys, I am having a problem with downloading apps through cellular data on my mytouch 4g. I can download them fine if I am on wifi but it gets stuck on "starting download" progress bar without it. I've tried clearing the data for the market app, restoring it back to factory, and the google talk sign in; none of these worked for me. This is driving me crazy and any help would be greatly appreciated.
Update: Fixed nvm
How did you fix it?
yeah how you fixed it would be nice as mine is doing the same thing... ugh wish t-mo could have just brought a legit phone out
Turn On Wifi
Even if there is no wifi connection, on my MT4G the wifi has to be enabled for the market to download.
I think this may be fixed on the new update that came out today. I still haven't seen my update yet. :-( mine still does this too.
Sent from my HTC Glacier using XDA App
stoute said:
I think this may be fixed on the new update that came out today. I still haven't seen my update yet. :-( mine still does this too.
Sent from my HTC Glacier using XDA App
Click to expand...
Click to collapse
Go into settings/wireless networks/mobile network or operator and select Tmobile network. Even it is checked select it and make sure your phone is gsm/wcdma checked. WCDMA only created problem for me. Also if you have temp root you will not get the update as long as it is running on your phone. In addition, if you disabled any bloatware you have to restore it before the update. Once I disabled Visionary and restored back to factory I got the update in a couple of hours.
This is a really weird problem but it has to do something with the connection to the google servers (mainly google talk). This is evident by the fact that you are signed off and can not connect to google talk when you're stuck on the starting download phase of downloading the app(s). There are two ways around this problem that I've seen so far
1. Before you want to download an app, run google talk and make sure you're signed in, then sign out and sign in again. Go download the app(s) afterwards. Once you do this after you first power on the phone, it should last until you power it off.
2. Another way is go and try to download an app(s) you want and it will be stuck on the starting download bar. DO NOT cancel the download, just restart the phone and it should start downloading once the phone is back on.
P.S. The update did not fix this issue because I still have to deal with it.
If I learn anything new, I will keep you posted.
kamasi36 said:
Also if you have temp root you will not get the update as long as it is running on your phone.
Click to expand...
Click to collapse
I got the update with Superuser and root just fine.
Not to rub it in, but I'm really glad that I am not experiencing this problem. I'm liking the phone too much to have a reason to bring it back!
Ok I have found out that the Google talk sign out sign in trick does not always work while the restarting one always works. It definitely is something to do the Google servers and the way the phone syncs with them. What I found interesting is that when you open the market app, immediately experience this problem as you can not sync under accounts settings and services like Google talk stop working. Another thing is that it seems to be the HSPA and HSPA+ connections causing the issue, the apps won't dl on them but it will start immediately as your phone drops to edge. I don't know if this is a hardware, software issue with the phone or the Google servers getting adjusted to the mytouch 4gs since they just came out.
Think I'm going to exchange my phone since not a lot of people have this problem.
Sorry to bring up an old thread but i'm now having this issue aswell. I've tried to clear data, can't download on Wifi or 3g. When i click ok it just says the download will be started and nothing happens, Sometimes if i play around i can get it to go to say starting download but just sits there then i will get either a network error to retry or cancel. Sometimes it's just a download unsuccessful and i click ok.
I tried resetting aswell and still same issue. Not sure how to sign out of google talk.. haven't quit got the hang of android yet but i'm actually not happy right now!

[Q]

Hey all
I recently got my contract phone upgrade and got myself the motorola defy
The first phone I received, as soon as it would connect to 3G or Hsdpa it would reboot, forcing it into 2G helped but didn't solve the issue, it would still reboot without reason
So I sent it back
The second phone I received and currently using, has been mostly ok, except when you put the phone into airplane mode and then take it out, the phone tries to connect to the network, it connects for a few moments and then drops, it then does that a few times and then the phone reboots
Forcing it into 2G mode when it's in this loop fixes this, it connects fine and then I can put it back to automatic and it connects to 3G fine
Is this software issue with the phone? Or some odd conflict with my provider?
My phone is currently running stock 2.1 Rom, if that helps at all
Hi
Had a similar issue with the first Defy Plus I got. I sent it back. Have seen some similar threads about this but no solution, sorry. I am awaiting replacement number three after the second one had a faulty touch screen.
Regards
Dead_lemon said:
Forcing it into 2G mode when it's in this loop fixes this, it connects fine and then I can put it back to automatic and it connects to 3G fine
Is this software issue with the phone? Or some odd conflict with my provider?
My phone is currently running stock 2.1 Rom, if that helps at all
Click to expand...
Click to collapse
Could be hardware related. I think that the initialisation of the 3g module is not working as it should. Maybe the power management of the 3g module is broken? If you did not installed any custom firmwares or modded the stock one I would give it back and ask for a new one.
iRegistry said:
Could be hardware related. I think that the initialisation of the 3g module is not working as it should. Maybe the power management of the 3g module is broken? If you did not installed any custom firmwares or modded the stock one I would give it back and ask for a new one.
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Click to collapse
Mmm... I think I will restore to factory default, if it still does it then I guess I should take it back, really annoying, for such an awesome phone, it sure does have a lot of issues
And it will be another week and a half wait for it again :/
Thanks
Well doing a full factory default achieved nothing
Think I should take it in
Thanks for the advice

Unable to do PRL or profile updates (errors every time)

Every time I try to do a PRL or profile update, the phone tries for a while, then comes back saying it failed with the error: "Connection Error (6602)."
Anyone experience this also? Any ideas on how to resolve?
I am on stock MF9 rooted (with hotspot but no other mods).
Do ##72786# and see if it helps
Sent from my SPH-L720 using Tapatalk 4 Beta
adding to what @daniel4653 said... try to do it over wifi.
daniel4653 said:
Do ##72786# and see if it helps
Sent from my SPH-L720 using Tapatalk 4 Beta
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Click to collapse
I tried it and it totally f'ed up my phone temporarily because not only did it not work, but the same kind of error was then preventing the "hands free activation" from completing. I was SOL and really sweating bullets there for a while but then on like the 20th try it succeeded which made me realize what was going on... I happened to drive into a 3G-only area (usually I am in a 4G area). So, it appears that the problem is with trying to do updates over LTE, only then do I get the error. If I am in a 3G-only area then updates work okay. It's almost as if the APN settings for FOTA are messed up or something (though I did not touch those but maybe something happened on the Sprint side without equivalent profile adjustment on the phone's end).
So, I still have the problem but it is only on 4G LTE. If I want to do updates I have to put the phone into CDMA only mode; plus, firmware changes I always do by hand manually. So I have a workaround but it would be nice to know why this now fails on LTE. I don't recall having this issue before it started appearing last week.

[Q] Disconnects from mobile network several times per day

Hi guys, i know this is a common problem, but i have yet to find a solution to it. My S4 (Bell Canada, KOT49H.I337MVLUFNI2, completely stock unrooted) will drop the mobile network (both voice & data), and the only way to get reconnected to Bell is by rebooting my device. After a reboot I might be good for a few hours or for a few days but it always happens again. At first the mobile signal will grey out, then eventually turn to a circle with a line through it. In the network mode setting becomes blank and non-selectable.
Suggestions around the web include selecting WCDMA only, clearing the cache, factory resets, and reflash the full firmware package with Kies3 & Odin. Ive tried them all and the problem always inevitably returns.
Here are a few links to people with similar problems, but nobody seems to have a solution in any of these threads either:
https://community.sprint.com/baw/message/773419
http://forums.androidcentral.com/sa...fter-update-won-t-stay-connected-network.html
https://support.t-mobile.com/thread/68518
http://thedroidguy.com/2014/02/samsung-galaxy-s4-4g-wont-stay-connected-84465
http://community.koodomobile.com/koodo/topics/samsung_galaxy_s4_4_4_2_connectivity_issue
https://www.youtube.com/watch?v=GlHK11pE7kA
Other than returning it for a replacement under warranty, does anybody have any other suggestions to fix this? Thanks.
anyone?
Are you sure your problem isn't the same as the sim card removed problems? Because the symptoms sound the same in the effect they have, and what is required to temporarily fix it.
See here and here.
I've experienced the same problem, but it seems to have cleared itself.
It first started happening after the update to the latest Bell stock firmware.
I had read some people blaming it the Amazon app store as well as the Skype app. I had both installed, but have since removed Skype but can't say 100% that this is what solved the issue for me.
Sent from my SHIELD Tablet using XDA Free mobile app
I have the same problem, this is not the sim card removed problem, this is a bug in Android 4.4.2 because the problem was not present in 4.3 maybe the recent update to 4.4.4 solve this, has someone try out ?
FarmGeek4Life said:
Are you sure your problem isn't the same as the sim card removed problems? Because the symptoms sound the same in the effect they have, and what is required to temporarily fix it.
See here and here.
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Click to collapse
My SIM card is still in place and detected, the phone just disconnects from the network. After a reboot it will be fine sometimes for a few hours - sometimes a few days, but it always inevitably disconnects.
If you check any of the several links I posted you'll see there are hundreds (if not thousands) of people on all different carriers all experiencing the same problem.
emptyPD said:
I have the same problem, this is not the sim card removed problem, this is a bug in Android 4.4.2 because the problem was not present in 4.3 maybe the recent update to 4.4.4 solve this, has someone try out ?
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Click to collapse
I've had my device since Jan of 2014 and the problem only appeared in the last few months following the 4.4.2 update.
I'm having the same problem. It disconnects and reconnects again. Stays disconnected for about 2 mins. Happens like 12 times a day. I re enter the apn setting and still does it..it happens with every rom I flash. I've notices that it mostly happens when it switches from 4g lte to 4g. I'm on At&t 4.4.4
bump. anyone ever find a solution to this?

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
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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.
Click to expand...
Click to collapse
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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Click to collapse
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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Click to collapse
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.
---------- Post added at 02:20 PM ---------- Previous post was at 02:19 PM ----------
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.
Click to expand...
Click to collapse
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.
---------- Post added at 02:22 PM ---------- Previous post was at 02:20 PM ----------
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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Click to collapse
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?
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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...

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