[Q] S4 Network drop fix? - AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin

Hey guys -
Forgive me if this is a really basic question - I'm not a hardware guy.
Recently I updated to 4.4.2 and my AT&T Samsung S4 has been dropping from the 4G network CONSTANTLY. I'll get 1 bar of reception and then 3 hours later I'll wonder why I haven't received any texts and it'll take me toggling Airplane Mode on and off to re-initialize myself onto the network for everything to catch up to me. It's infuriating.
As far as I can tell this is an issue with either a) AT&T's LTE towers not being updated to the latest firmware or b) a serious bug in either Samsung or AT&T's modifications to 4.4.2
Examples of the issue can be found all over the place.
Steps I've taken:
-New SIM card from AT&T store
-2 hour chat with a tech at a Samsung Experience store. We reflashed my phone with 4.4.2 in the hopes that maybe something got corrupted and this would overwrite it.
-Factory reset
-A lot of messing with APN's to see if I can circumvent using 4G LTE and just switch to 3G mobile data until the issue gets patched
-Calls to both AT&T and Samsung demanding replacement of the phone.
I'm kind of at a loss as to what to do. I'm 3 months out of my 1 year Samsung warranty so I have no problem rooting or flashing an older ROM onto the phone - I just have no experience with any of this stuff. After doing some reading here on the forum it seems like rolling back to 4.3 is impossible at this point. So I'm just trying to gauge what my options are at this point.
Has anyone experienced this same issue? Any insight?

Related

Bell Galaxy S2 On Telus Network - Network Drops Every 10 Min

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.
Click to expand...
Click to collapse
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.

AT&T Samsung Galaxy 3 (just rooted) Data Outages

Greetings XDA members. I purchased my Galaxy S3 from AT&T back in July. Had no issues with data (HPSA+/4GLTE). Recently I rooted phone (no custom firmwares) for tethering purposes. Never tweaked with APN settings. Some reason my phone shows the 4G LTE symbol for connection but randomly when I go to access internet on any app I have no connection. I also dont receive any text messages (SMS or MMS). Only way around it is to send my phone into airplane mode then turn airplane mode off and I can surf fine and all my missed texts pop up all at once. I can be in exact same area and use data then randomly it stops functioning (repeat airplane mode procedure). I did research and some say it could be that sim card in the spring could have unaligned inside the phone. Tried that but to no avail. Anyone have any suggestions? Would downloading stock firmware/factory settings fix this issue? Below is details on my phone.
AT&T Samsung Galaxy S III (SGH-i747)
Android 4.0.4
Baseband I747UCLEM
Network APN: default AT&T PDA
I have unlimited data (used roughly 3.7gb) because I've tried the restorting to factory settings and google reinstalled all my apps couple times (forgot to use wifi instead of cell data). I figured maybe that was an issue that I used too much data and AT&T cuts me off. Im not sure if its the tethering app (only used once to test) did something to it. Phone worked fine for a couple weeks then randomly started cutting data out resulting in the airplane mode workaround.
Ok I've rambled enough. Final question: Is there a list that has AT&T Samsung Galaxy 3 SGH-i747 default APN settings so i can varify that mines weren't altered to cause this issue.
Thanks for reading and hopefully issue can be resolved. Thanks.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
I just wanted to echo your problem. I have an AT&T S3 I747 and don't recall there being any network issues until I rooted my phone. I have unrooted, gone back to stock, and then even went back to stock ICS from JB and the network issue still seems to be there. I was curious if you found any ideas or fixes, or if anyone else has a fix or solution. I am running rooted stock Jellybean.
Im using my GS3 unroot with jelly bean 4.1.1 and dont seem to have the issue anymore. I went completely stock and I called AT&T to reset my data. Told them the issue I had (didnt mention i previously rooted) and rep reset my APN settings for my phone. I had to turn phone off for a few minutes then turned back on and all seems to work now. It still goes out sometimes but not as often since going from ics to jelly bean. Hope this helps. Dont think ill be rooting again anytime soon. Think problem started after I tried that free tethering/hotspot app for rooted users. This is messed with APN settings and caused problems.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Root by itself won't cause any issues. You used another app, in this case the tethering, which used root and messed up normal data on your phone. You can safely root just be careful what you do after that. Read, read, read.

The Ntelos S5

I have an ntelos S5 (G900R7). There is no development for this phone anywhere on the internet. Perhaps I can find support here?
---------
So far (you may skip this part):
I have managed to successfully install Spirit Rom with full functionality, by copying my old build.prop into the system directory, and restoring my previous apn settings using the apnsbu. I forget why I left this rom, but I did. Everything I try has some problem! I then proceeded to try just CM11, by itself, and had 3g difficulties. Then, using Kushman's sprint MIUI, (Ntelos shares sprint towers) things seemed to work right, but it remapped my recent app key to menu... (perhaps I can map it back?) and the volume was not controlled by my physical volume buttons.
-----------
Now my favorite rom so far: Mokee Rom It's fast and visually pleasing, but I have wi-fi and phone difficulties.
After imposing my APN settings, I can reproduce these effects:
(1) Before replacing build.prop, the wi-fi works and can be enabled or disabled as I need. Also, 3g works very well at nice speeds, but it says "Verizon Wireless" underneath the 3g indicator bars. However, I cannot make calls. If I attempt to do so, the 3g data stops working, turns orange, and no longer says "3g". If I do this, then no data can be transmitted or received.
(2) After Replacing build.prop with the "good original" copy (which sometimes fixes similar problems in other custom roms) the wi-fi becomes stuck in a constant state of "turning wi-fi on..." but never turns on. 3g still works, but, as in part (1), it will break if I try to make a call.'' Also, in this case it says "Sprint" instead of "Verizon Wireless"
Does any one have advice, or perhaps some build.prop settings to modify? Or maybe there's a different file that would help. Again, my phone is the SM G900R7. Has someone else with this phone had luck customizing it?
Thank you
nTelos S5
Likewise have a nTelos S5, have not found any custom roms that can successfully be installed without data or phone issues.
Also trying to install any ASOP roms resulted with all phone efs data getting cleared.
Upon searched relentlessly the only rom I found that functions is located at
http://teamcspire.com/index.php?/topic/112-gs5-g900r7-r2-teamcspire-nd8stock-deodexed-101814/
its very stock but functions flawlessly for me.
Advise if you have any luck, I will reciprocate.
doby-nut said:
Likewise have a nTelos S5, have not found any custom roms that can successfully be installed without data or phone issues.
Also trying to install any ASOP roms resulted with all phone efs data getting cleared.
Upon searched relentlessly the only rom I found that functions is located at
http://teamcspire.com/index.php?/topic/112-gs5-g900r7-r2-teamcspire-nd8stock-deodexed-101814/
its very stock but functions flawlessly for me.
Advise if you have any luck, I will reciprocate.
Click to expand...
Click to collapse
My advice is to you, is that if you install Mokee rom, do not update it with OTA update. This is what I think broke the network for me. Even after restoring my phone to factory conditions and using Kies, I still had no network. I ended up going to the nTelos store, where they had to reset the network service for my phone on their end... strange.
Anyway, I have made a few roms work, and I suspect I could make more. If you maintain your apn settings, and build.prop, you should be able to make Spirit rom work. The same thing is true for Miui. However, if I remember from my experience correctly, if you do install Miui, then I THINK you should not restore your original build.prop; it may work without it... just restore the apn settings. When you do this, you may have to change the preferred network mode... I am a little freaked out, after my previous experience with Mokee rom, to mess with this any longer, though. I do have a problem with Spirit rom: if I use the Timely alarm clock, the time panel is miscolored, but I believe that could possibly? be fixed by flashing a different kernel. I plan on flashing Spirit tonight.... stock uses up my battery too fast, and Spirit just feels more responsive.
EDIT: I just re-flashed Spirit Rom, and they fixed the discoloration in the most recent version! Also, as before, my 3g and WiFi work fine.
Took me days...
The CSpire shares the model number and ROM. The US Cellular CM11 is the closest. Somewhere in that I lost my ability to send texts (not sure if it's the SMSC or...) and didn't get it back when I ODIN'd to stock. I would LOVE to have CM support for this model.
I also am in the same boat as you guys. I would love to get another reliable ROM on this phone. I just have bad memories of purchasing my last one (Sprint GS3) from ebay, and having one hell of a time making the MMS work after flashing it for nTelos. However, I never did have to mess with any of the APNs or build.prop settings on that one. I would think the Sprint ROMs should be the closest compatible ROM, being that nTelos and Sprint do share towers in WVa and Va (Sprint actually has zero towers in these states, and leases nTelos towers instead).
Is using EFS Backup by Wanam a good method to insure the EFS does not get screwed up?
caezec said:
(1) Before replacing build.prop, the wi-fi works and can be enabled or disabled as I need. Also, 3g works very well at nice speeds, but it says "Verizon Wireless" underneath the 3g indicator bars. However, I cannot make calls. If I attempt to do so, the 3g data stops working, turns orange, and no longer says "3g". If I do this, then no data can be transmitted or received.
(2) After Replacing build.prop with the "good original" copy (which sometimes fixes similar problems in other custom roms) the wi-fi becomes stuck in a constant state of "turning wi-fi on..." but never turns on. 3g still works, but, as in part (1), it will break if I try to make a call.'' Also, in this case it says "Sprint" instead of "Verizon Wireless"
Click to expand...
Click to collapse
You might try saving out your wpa_supplicant file from the stock ROM and replacing it on the flashed ROM. This has worked for me before on my GS3. That might take care of the wifi anyway.
I'm also on ntelos with the s5 now. But it is a us cellular unlocked by them phone. Stuck in a ntelos sim card that I bought from store and everything works. Except 4g. I can live w/o it but it's kinda like a puzzle now. How could I enable this to work on ntelos?
Depending on where you are, ntelos does not have 4G in many places yet. It's still very spotty in West Virginia.
Has anyone taken the OTA Lollipop update? If so, how is it working and does it lock or put in a new bootloader?
I have. It's a little laggy at times, gets really hot when using it while charging and battery drains a little faster. Not sure about the bootloader
i4get75 said:
I have. It's a little laggy at times, gets really hot when using it while charging and battery drains a little faster. Not sure about the bootloader
Click to expand...
Click to collapse
I think I will hold off for a while. My stock NK1 is laggy enough as is. Damn, I wish there was a compatible ASOP ROM available for this phone.
Honestly, this Samsung G5 is the absolute worst phone I have ever owned! I would like to get a S6, but my experience has been so bad with this S5, I am almost afraid to stick with Samsung. However, my S3 was awesome!
Just found out that the heart rate sensor is active when the phone is on no matter if S Health is open or not.
I am in the Richmond area on Ntelos. They have stated they have sold their bandwidth to T-Mobile and we are to find another carrier. My phone is not even a year old and no other carrier will activate it. Being I own mine outright and paid close to $600, I am about to lose my mind knowing that I will have a shiny expensive very small tablet in a few months. Has anyone a clue how to change this phone over to GSM or something useful. Verizon refused to even try, though I know when I tried Straight Talk's Verizon Sim it did dial to Verizon's customer service. But Straight Talk nor Verizon would activate it.
Ideas and suggestions welcome.
puterdoc said:
I am in the Richmond area on Ntelos. They have stated they have sold their bandwidth to T-Mobile and we are to find another carrier. My phone is not even a year old and no other carrier will activate it. Being I own mine outright and paid close to $600, I am about to lose my mind knowing that I will have a shiny expensive very small tablet in a few months. Has anyone a clue how to change this phone over to GSM or something useful. Verizon refused to even try, though I know when I tried Straight Talk's Verizon Sim it did dial to Verizon's customer service. But Straight Talk nor Verizon would activate it.
Ideas and suggestions welcome.
Click to expand...
Click to collapse
page plus,i am an ntelos dealer and pageplus dealer i flash phones to and from both companies everyday i am in ruckersville va 12 mile north of charlottesville lemme know if you need help you right its the enitre eastern side of the companyh is gone now to tmobile but you can still activate on frawg..ive done many for customers
Thanks for the info. I am on the frawg side of things now. Their plans were too much when mine ended and I didn't need a phone at the time. Then a few years later, yeah I made my S1 last almost 4 years, I bought the S5 late last year outright. Loved the S1. Made that do everything it just did everything slow at the end.
Anyway, am glad there are options of some sort. Have been reading the reviews of pageplus. What kind of speeds are you getting on it with 4G? Their map shows coverage everywhere which makes me a bit uneasy, as in too good to be true. Is it a simple flash or require editing?
If I can't do something else with the phone, I may try the band opening options. According to the phone specs, it should already have all the Verizon bands but they refuse to activate it due to the meid it seems. I have a feeling this topic may get more viewers as the Ntelos off switch day comes closer.
Google Fit was the culprit for the heart rate sensor staying on. Un-installed it and fixed it
After all this time, has anybody found a ROM that works well on this phone?
can't get data so Internet not working on galaxy s5 unlocked already switched ntelos
njdan30 said:
page plus,i am an ntelos dealer and pageplus dealer i flash phones to and from both companies everyday i am in ruckersville va 12 mile north of charlottesville lemme know if you need help you right its the enitre eastern side of the companyh is gone now to tmobile but you can still activate on frawg..ive done many for customers
Click to expand...
Click to collapse
My internet is not working but I can get talk and text
In case nobody has seen this, there is a now a CyanogenMod 5.1.1 ROM available now for nTelos. I have been running it for 3 days now and I really like it. Good battery life too. Very stable and very speedy. There are some occasional bluetooth audio stuttering issues, but nothing terrible.
See this thread.
http://forum.xda-developers.com/gal...ent/unofficial-cm-12-1-g900r7-inland-t3255191
FYI, Cyanogenmod 13.0 (Android 6.0.1) is available for nTelos and C-Spire (and other) devices here. http://forum.xda-developers.com/gal...ent/unofficial-cm-12-1-g900r7-inland-t3255191
Sucks for ntelos customers bring forced into sprint at least the CDMA phones and iphones are unlocked
Sent from my SM-G935F using XDA-Developers mobile app
---------- Post added at 03:56 AM ---------- Previous post was at 03:52 AM ----------
njdan30 said:
page plus,i am an ntelos dealer and pageplus dealer i flash phones to and from both companies everyday i am in ruckersville va 12 mile north of charlottesville lemme know if you need help you right its the enitre eastern side of the companyh is gone now to tmobile but you can still activate on frawg..ive done many for customers
Click to expand...
Click to collapse
Sorry it's been a year only thing needed was a sim card and set apns it'll be 3g but beats a paper weight it'll get evdo and ehrpd speeds some cases you can get lte but very limited areas
Sent from my SM-G935F using XDA-Developers mobile app

T-Mobile Rollcall

Hey everyone! As the title states, this is a thread for T-mobile users. Lately with T-Mo upgrading their towers to 4G I've been coming into a few issues. The gist of it is that I randomly can't make or receive calls on my Nexus 4, and after some research online I discovered that I'm not the only one with this problem (This is especially true with Lollipop users). I tried the 4G hack with multiple radios, after resetting my APN settings I can make and get calls for about 2 minutes, and after that my problem comes back as if I never did anything at all. I've noticed that I can get it to work after resetting the APN to default, but I can't be expected to do that every 5 minutes throughout the day, its simply unacceptable. What's worse is that I recently got into a contract with T-Mo after being prepaid for the last year and a half.
So my question to all the T-Mo users here is what ROM are you using? Which radios do you use (if you've had to)? Are you using 5.x.x or 4.x.x? Have you had encountered this problem at all, and if so how did you remedy it?
Update: I fixing my problems by flashing a 5.1.x ROM. Although I nearly bricked the phone because the gapps provided weren't written properly which caused the setup wizard to crash.

Note 4 no longer supported by T-Mobile No Network

My husband and I both have a stock N910T. When we woke up yesterday neither phone would get signal, and not even make wifi call. Went to TMo shop today they told me that they were no longer sending signal to Note 4's (Thanks for the heads up TMo). We really like these phones and I wonder if I could root them and flash a stable ROM and get service on them again. When I pull the sim it shows 5 bars, put the sim back and X. I have rooted many phones, but not since I got this one 6 years ago, so I'm sure I'm a bit rusty.
Any advice highly appreciated. TIA
I'm in the same boat with the note edge. It stopped working friday night for me. Put the sim in a stock note 4 and same thing, so I thought my sim card died. Went to the tmobile store on saturday and they said 2 people had came in with the same issue and they had note 4s.
What I don't understand is how they can just stop supporting a phone. I thought that if it accepts the sim card and has the proper bands it'll work. I mean for ****s sake my car takes a tmobile sim for a hotspot and traffic updates.
same exact. i just factory reset and updated stock to see if it would fix but it wont. Any solutions here??
Try to:
a. flash a custom TWRP (recovery) with Odin
IMPORTANT - after you flash TWRP PLEASE TAKE A FULL BACK-UP!
b. flash a custom ROM with root
c. why root? because you can change the build.prop file and "pretend" to be another phone (newer more likely) so that the lovely t-mobile can still allow your phone to connect to the network.
This way you have zero costs, you keep your note 4.
Unless it's too complicated or the procrastination level is TDH (too damn high)
Or you have the cash and buy something new(er).
There's info on this forum about all these steps.
Before you do anything - go and read, search on this forums and on youtube. There are a LOT of tutorials.
Please be careful and READ. Get educated about custom recovery/ROM's.
You will get good knowledge and your satisfaction on make things work will be enormous.
You will be responsible on your actions with the phone.
Good luck.
mine is already rooted with a custom rom. which parameters do you recommend changing in build.prop?
my audi is older than the note 4 and data works fine and calls work on a motorola L6 from 2005, so I doubt it's the age.
someone on reddit came up with a temporary solution until they fix this. you'll lose 4g/LTE tho
To set to 3G/2G turn on airplane mode and enter *#2263#* on the phone dialer. Then select GSM/WCDMA Auto. After that turn airplane mode off.
Hey all - same issue here - Note 4 stopped working Friday morning. I tried everything on my end (factory reset, ROM flash, SIM swap, etc). I even tore the phone down and checked the connections. I ordered a replacement SIM / SD card tray reader thinking that was the issue. Now I hear others having the same issue. I live in Colorado FWIW. Calling into T-Mobile now to see if I can get some info here.
---------- Post added at 02:50 PM ---------- Previous post was at 02:31 PM ----------
After speaking on the phone with a tech support person, T-Mobile reported that they were aware of an issue with Note 4 users not being able to access the network. They said that they "were in contact with Samsung and were actively working on an issue" and reassured me that they would have a solution for customers soon. I sure hope so because I do not want to give up my Note 4!
Note 4 user here too. This sucks. I did the workaround on the dialer posted in one of the above posts, and now it connects. Says 4G at the top, but probably only 3G. That's fine for me in the meantime, but not acceptable in the long run. I just spent 2 days wiping the phone, unrooting, etc only to find this now! Got lots of work to do to get it back to my rooted state. Thankfully I have the backups to do it, just have to find the time now. Thanks T-Mobile!!
Has anyone heard any more on this issue?
Just had the same issue. Called T-mobile support and they had no idea of a widespread issue, said it was likely HW failure. I got a new SIM and that didn't help. Called local cellphone repair shop and they indicated they'd had several calls about this issue and fixed at least one so far by replacing the card reader. I applied the workaround above and got the phone working again so I don't understand why a new card reader is going to fix this.
Note 4 seems like it's back working on T-Mobile as of last night.
HI I purchased galaxy note 4 3 years ago in the first time I put him on i has that problem yet
But I live in curacao in the Caribbean and I think that the mother board was not good.
Then I has flight to medellin Colombia with the phone he began working I was glad but when I arrived to curacao from medellin the same problem
Sometimes he is working sometime not
I have the same problem T-mobile N910T
jalsing said:
Note 4 seems like it's back working on T-Mobile as of last night.
Click to expand...
Click to collapse
Thanks for the update! I reversed the workaround I applied earlier and mine is back to 4G LTE now.
Any update on this issue?
The N915-T is spotty and I'm trying to figure out why. It was officially kicked off the network by T-Mobile, but it still works. It connects to most towers but not to a particular one. Whenever I'm on that block the network can not be found. If I walk two blocks away it would connect to another tower and I can make calls. If I walk back toward the 'faulty' tower while on the call, the quality would degrade, the call drops and the phone would lose signal.
This would NOT happen with other phones - not even an older Galaxy S2.
This is likely a different issue altogether, as the phone actually connects and works elsewhere. I'm just hoping someone has an idea.

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