Not Connecting To 3g, Only Working On GSM - T-Mobile, Samsung Galaxy SIII

I've been having a strange problem with my S3 lately, all of the sudden, the connection to 3g network has only rarely been working. It shows that I have a signal, and that I am actually connected, but I can't make calls, send texts, or get data. It has been rooted with Liquidsmooth for over a year with no problems, and I didn't flash any other roms or anything else that I can think of to cause this. I tried flashing another rom, restoring to an older nandroid backup, nothing fixes it.
After searching around, and being unable to find any solutions, I flashed back to a rooted version of stock (root66 T999_UVUENC2). I've talked to Tmobile, and they suggested trying it is gsm only mode, and that actually works ... I can call / text while on gsm, but obviously I don't get 3g data. When in regular network mode, it does the same thing, shows signal and that I'm connected, but nothing works.
So, any clue as to what could be going on here? Is it just a hardware problem like an antennae going bad, or could there be some software issue causing the problem? Thanks, any information would be helpful.
My current setup:
root66 T999_UVUENC2
Kernel 3.0.31-1962493
Baseband t999uvuenc2

They probably would've said something when you called, but check if the imei got blacklisted somehow. (Mistakes have been made before).
Also make sure you're still using the correct APN.
Beyond that I'm just not sure what to tell you. Since you've gone full stock, it most likely means its either a hardware or network/account problem.
Have you made sure you're not being throttled?
Sent from my SAMSUNG-SGH-T999 using Tapatalk

Tmobile checked my account when I called and they said there's no problem on their end and that it should be working. I double checked the things you suggested, no luck. And since nobody else that I know with Tmobile is having problems in the area, so I guess it has to be some kind of hardware problem. Thanks for the help, guess it's time to start looking for a replacement.

tony140 said:
Tmobile checked my account when I called and they said there's no problem on their end and that it should be working. I double checked the things you suggested, no luck. And since nobody else that I know with Tmobile is having problems in the area, so I guess it has to be some kind of hardware problem. Thanks for the help, guess it's time to start looking for a replacement.
Click to expand...
Click to collapse
Maybe you could troubleshoot by trying you sim in a friends phone and their sim in your phone to see if the issue persists with either the sim or the phone. If it is the SIM, you know it is on T-Mobiles end, if it is on the phone you know it is on your phone. I would also try re-flashing everything just to be sure it's not in the software/firmware before spending money on another device.

409
daggorlad said:
Maybe you could troubleshoot by trying you sim in a friends phone and their sim in your phone to see if the issue persists with either the sim or the phone. If it is the SIM, you know it is on T-Mobiles end, if it is on the phone you know it is on your phone. I would also try re-flashing everything just to be sure it's not in the software/firmware before spending money on another device.
Click to expand...
Click to collapse
That's a good idea, I'll try changing out the sim card and see if that helps.
Thanks

Did you ever find a solution to this problem, I'm having the same issue, and I flashed the 4.4.4.065 tonight and still can't get a data connection
Sent from my SAMSUNG-SGH-I747 using XDA Premium 4 mobile app

Didn't someone say it was a problem with the ROMs base not working with the radio/modem? If that's the case it probably won't be fixed until the base is fixed. Think they said it was CM?
Sent from my SAMSUNG-SGH-T999 using Tapatalk

Related

Verizon, flashed rom, lost service?

I just flashed my phone to OMJ's custom Verizon, now I have lost all service. Any advise on what settings I am missing?
Or is this a call into Verizon to do something? If so what do I say?
Thanks,
Scott
well hopefully when you updated the radio with a different rom you didn't let the customizations run.
if you did everything correctly you may just need to activate a different phone on your plan, get all your services working on that phone, then reactivate your xv6900, do the *228, remove battery thing and hopefully that'll work for you
No did not let the customizations run. It all went smooth. I did find this message....
http://forum.xda-developers.com/showthread.php?t=416908&highlight=verizon
So I am calling Verizon....
Is there a way to not have to call Verizon? Will this happen with EVERY flashed ROM? Or is it only when you unlock with IMcoke's utility?
What a PITA!
Scott
Well, I hope this thread can help others...
I did have to call Verizon to reset. Now the gal who answered did sound cute, but it took 20 minutes of her reading her scripts until she escalated me to 2nd level support.
10 minutes there and they did the A-Key update....
So all is working..
But more importantly, what causes this? Will it happen with every ROM or just the first you flash?
Regards,
ST
I know I have to call in every time I Master Reset my stock XV6900 so I imagine it's the same issue with a new flash as well. Something about this phone makes them manually update it on their end I guess.
You should only need to do this if you update the Radio. But, I've flashed two radios to date, and only on the first did I need to call VZW. I've flashed quite a few ROMs and had to call maybe twice.
Scott_T said:
Well, I hope this thread can help others...
I did have to call Verizon to reset. Now the gal who answered did sound cute, but it took 20 minutes of her reading her scripts until she escalated me to 2nd level support.
10 minutes there and they did the A-Key update....
So all is working..
But more importantly, what causes this? Will it happen with every ROM or just the first you flash?
Regards,
ST
Click to expand...
Click to collapse
I helped a buddy upgrade his Verizon XV6900 radio to the sprint radio. We ran into all kinds of problems with his phone. No internet, phone searched for thirty minutes and when it got a signal would sometimes randomly shut off. We fixed everything by logging onto the Verizon website and activating one of his old phones. We took the battery out of the touch before hand because two signals equal no good. We activated his old phone for about ten minutes and then reactivated his touch. Everything worked fine afterward. He had a new akey and I believe his dmu keys were reset. Hope this helps, but activating an old phone on the verizon website is a bit of a pain.
Thanks for the info everyone...
Hope this helps someone else out.
Scott
woodicw said:
well hopefully when you updated the radio with a different rom you didn't let the customizations run.
if you did everything correctly you may just need to activate a different phone on your plan, get all your services working on that phone, then reactivate your xv6900, do the *228, remove battery thing and hopefully that'll work for you
Click to expand...
Click to collapse
um.... what if I did let the customization run? after I used the Sprint Radio Upgrade. Does the phone now think it's a Sprint phone? It won't even let me do the *228 anymore. Someone mentioned having success using a radiorefurbish.exe? does that make sense?
Thanks!
I'm no pro, but re-flash, and make sure to soft reset before the customizations. Not a big deal.
Scott
I have the same problem with internet. I too accidentally let the first flash run customization. I then re flashed the phone with a bunch of different roms and still cant get internet working, nor *228. I can still make phone calls just no internet. Can someone recommend with a link a good rom for verizons xv6900 that would solve this problem?
TheBigBentley said:
I have the same problem with internet. I too accidentally let the first flash run customization. I then re flashed the phone with a bunch of different roms and still cant get internet working, nor *228. I can still make phone calls just no internet. Can someone recommend with a link a good rom for verizons xv6900 that would solve this problem?
Click to expand...
Click to collapse
You left some important details like,
The ROM & what exactly the error is.
Well the first rom was the oem sprint rom. I did this mostly for the gps function. The error is when i try to use data it says its dialing #777 then after about a min or 2 its says it could not connect. Ive tried entering my username and pass as someone suggested, but i actually never had one there before so I didn't see how that was going to help. Needless to say it didnt. I also have a problem when i try to use *228 to update my phone. It says it failed. Im mostly concerned with internet atm. By the way i really appreciate your fast reply!
I also ran the verizon carrier cab as was recommended in some posts but no dice there either.
TheBigBentley said:
Well the first rom was the oem sprint rom. I did this mostly for the gps function. The error is when i try to use data it says its dialing #777 then after about a min or 2 its says it could not connect. Ive tried entering my username and pass as someone suggested, but i actually never had one there before so I didn't see how that was going to help. Needless to say it didnt. I also have a problem when i try to use *228 to update my phone. It says it failed. Im mostly concerned with internet atm. By the way i really appreciate your fast reply!
I also ran the verizon carrier cab as was recommended in some posts but no dice there either.
Click to expand...
Click to collapse
First, if you haven't done it yet, enter the username and password. After you flash a new ROM, the fields are blank, but the internet will work, but at some point, it will start to fail becuase of it being blank.
If that doesn't solve it, I suggest flashing a new Radio and ROM, I personally suggest using one from OMJ. I'm currently using his 3.09 Clean ROM, and it runs smooth. And after using the aGPS hack, something you can do after you resolve this, I get a faster GPS lock inside my home or office, than someone with an in-car model.
which radio do you suggest Ive tried 3.42.30 and 3.42.50 both give me same problame. Im flashing omj's 3.03.01 clean as I type this.
I'm using 3.42.50 right now, and so far it works great.
ok so then I have both radio and rom installed and still no data. any further suggestion? Is there anyway of restoring verizon data setting to original defaults? I think the sprint rom must have changed something specific to the data settings. Ive tried everything to revert them back with no luck
What's the link to the ROM that you originally flashed and run the cusomizations.
http://www.smartphonejunkie.com/showthread.php?t=169263
Filename
RUU_PPST_Vogue_SPRINT_WWE_3.03.651.4_2_Radio_3.42.30_AM_NV_2.04_Ship
Well, I just browsed through the thread at PPCGeeks, I saw you just asked there too, but this is the best thing I've found:
http://forum.ppcgeeks.com/showpost.php?p=265704&postcount=360

[Q] No data and no calls

Randomly I have not been able to text, make calls or get a data connection with my phone. I was running CM 7.0.3 when this all of a sudden started. Restarting my phone would allow me to make calls and get a data connection for a few minutes and then I would not be able to do either. I flashed the newest CM7 nightly build and a new radio, Vision_Radio_12.57.60.25_26.10.04.12. The same problem continued so I flashed Virtuous 2.0.0 but that made no difference.
Anyone have any idea of what I can do to fix this?
Thanks.
I'd say try flashing a different ROM. But since you've fresh flashed the same ROM I'd say that pretty much counts.
Next I'd call the carrier and confirm that you SIM/account is in good standing, and that the towers are working properly in your area. I've had the freakout about "omg my phone is jacked up" and after flashing all kinds of ROMs, radios, etc. I just called T-mobile and they confirm that there was just a network problem in my area.
ur doing a full wipe right?
martonikaj said:
I'd say try flashing a different ROM. But since you've fresh flashed the same ROM I'd say that pretty much counts.
Next I'd call the carrier and confirm that you SIM/account is in good standing, and that the towers are working properly in your area. I've had the freakout about "omg my phone is jacked up" and after flashing all kinds of ROMs, radios, etc. I just called T-mobile and they confirm that there was just a network problem in my area.
Click to expand...
Click to collapse
I actually did flash a different ROM and the issue continued. I'll be contacting Bell to see if maybe it's a service issue.
smokeuout said:
ur doing a full wipe right?
Click to expand...
Click to collapse
I did a full wipe after trying the nightly CM7 and same issue.
knifer said:
I actually did flash a different ROM and the issue continued. I'll be contacting Bell to see if maybe it's a service issue.
I did a full wipe after trying the nightly CM7 and same issue.
Click to expand...
Click to collapse
If you contact bell they'll know that you rooted your phone and they will have less sympathy to help you fix it.
Sent from my HTC Vision using XDA App
evilcuber said:
If you contact bell they'll know that you rooted your phone and they will have less sympathy to help you fix it.
Sent from my HTC Vision using XDA App
Click to expand...
Click to collapse
How? Do like I did and google the right build number for your device because they will ask, and you don't want to get caught saying 'GRJ***'
Sent from my HTC Vision using XDA App
evilcuber said:
If you contact bell they'll know that you rooted your phone and they will have less sympathy to help you fix it.
Click to expand...
Click to collapse
They won't know unless you tell them.
PaganAng3l said:
How? Do like I did and google the right build number for your device because they will ask, and you don't want to get caught saying 'GRJ***'
Click to expand...
Click to collapse
This.
i tell my carrier straight up that im rooted...they dont say anything...but im not calling tech support either
If the OP is just calling to see if their have been any reported service outages or interruptions in his area, whether he is rooted or not shouldn't matter.
A couple times in the past few years, I've had instances where I lost both data and voice service for up to a couple hours at a time, over the course of several days. Then the problem just goes away. This seems to fairly typical, if they are upgrading or repairing your local tower.
If the OP has tried flashing various ROMs, and tried a new radio, I'd be inclined to say the ROM is not the problem. If the problem persists, you may ask your carrier to send a new SIM (or go to their store and ask for one).
hi,
you are not alone!
i have this problem with OE HTC 2.3.3 stock rom! (unrooted original device from Nov. 2010)
so i had very bad mobile connection and after ~1day (without reboot) i can't phone with it.. mobile network only "x" but data connection is fixed to gprs.
very strange!
so i send my phone back and orderd new one.
i think this is was hardware problem.
short:
- reboot bringt full funktion but the mobile connection is not so good as 4month ago (same point).. 4month ago it was "H" and now only gprs
after many hours >8h. calls didn't work, the phone said "no provider"... (x)..
- the strange thing is that data connection is degrade to gprs
this problem exist from the last 2 HTC OTA updates. but onyl the last 2.3.3 makes it really unusable
i hope this problem don't come back with the new desire z now rootet with cm 7.10 rc1 (what a feeling)

Defy+ Plus phone and data hang

Hi all, I posted in the CM10 support thread, but this issue doesn't seem to be well known so I'm raising it in its own thread.
I'm not having much luck with my newly-purchased Defy+. The factory firmware suffered random reboots, which is pretty well documented. I installed the latest CM10-20121018-NIGHTLY-mb526.zip, and the random reboots have stopped. However I now get occasional dropouts of phone and 3G service.
Usually, I find out when either I try to use data and even though the 3G icon suggests a connection, no data is transferred. Then the phone app hangs when I try to make a call. If people call me, they *do* get a ringtone, but my phone doesn't make any sound or visual feedback that there's a call coming in. Aircraft mode doesn't rescue the situation, I have to reboot the phone to get it to work.
Hope someone can help - I came from a rock-solid CM7 / HTC Desire HD setup, and this is doing my head in. Am happy to provide any more debug information as required.
NB I see from http://forum.xda-developers.com/showpost.php?p=31440310&postcount=321 that there is a known 3G data dropout bug on these phones, but that's not what I see - I can't make phone calls either. Plus my ROM has that fix in.
I have installed Connection Checker which will hopefully give me details of if there's any pattern to the problematic behaviour. Look forward to any feedback, thanks in advance.
topperdoggle said:
Hi all, I posted in the CM10 support thread, but this issue doesn't seem to be well known so I'm raising it in its own thread.
Click to expand...
Click to collapse
I'll let this go, but be aware that usually double posting will result in any subsequent threads being closed.
Change baseband. I had the same problem. It's solved changing the baseband.
Mine was Europe\central Europe\3.4.x or 3.4.2-145 changing to 2.21 no problem at all.
Sent from my MB526 using xda app-developers app
cyrusct82 said:
Change baseband. I had the same problem. It's solved changing the baseband.
Mine was Europe\central Europe\3.4.x or 3.4.2-145 changing to 2.21 no problem at all.
Sent from my MB526 using xda app-developers app
Click to expand...
Click to collapse
Thanks for the response, it's interesting and heartening. I can't find a factory SBF so I can't take it back to the shop.
FWIW, I find the baseband screen confusing. My service provider is Golan Telecom. They have a UMTS 2100MHz network, and rely on roaming with another local provider - Cellcom for GSM 900/1800 and UMTS 850/2100.
I think I understand the frequencies but not what the 2.21 etc means.
As I type this, the phone has been on 2.21 for 20 minutes, and is now exhibiting the problem again.
I am now trying Asia / China 0.26/1.10 which has frequencies 850/2100 MHz. If for no other reason than Israel isn't listed in the list. However, that didn't work for long, if at all. I'm absolutely hating this.
Can you or anyone add to this by suggesting how I might choose the right baseband out of the options given?
Try one by one according to your location.
Sent from my MB526 using xda app-developers app
cyrusct82 said:
Try one by one according to your location.
Sent from my MB526 using xda app-developers app
Click to expand...
Click to collapse
Well, my location (Israel) isn't in the list. I've tried many settings, with varying results, but not one has been able to avoid this problem where the phone (app as in the actual telephone) just hangs and I lose voice and data. I can keep going, but I don't understand why one would magically work. I think 900/2100 should work with my SP, and I don't understand the differences between the myriad of options that still result in the same frequencies. Have I missed something?
Is there anything else worth trying? I have heard that sometimes it can be a SIM problem, but my SIM isn't even a year old.
I think I have a fix, due to great work by coas (see http://forum.xda-developers.com/showpost.php?p=31025913&postcount=34).
My carrier (Golan Telecom) has a national roaming agreement with Cellcom. It seems that flashing the Cellcom radio for the Defy Plus has fixed the issue. It's been up for four hours now, which is four times as long as before.
I guess the issue is that flashing the SBF to root the Defy Plus, messed up the radio in some way, but I don't really understand the whole radio issue, and what is different in radios from different carriers' firmware. I thought GSM was GSM and UMTS was UMTS. Anyway it seems to be working so I'm not complaining.
Just wanted to put this here for the benefit of anyone else who might be having the same issue.
Sadly, it was a short-lived "fix". Still unreliable, just not quite as bad. I'm going to try the Orange (Partner) radio .sbf which coas tells me is updated, and if not, then return it to factory firmware and take it back to the shop.
topperdoggle said:
Sadly, it was a short-lived "fix". Still unreliable, just not quite as bad. I'm going to try the Orange (Partner) radio .sbf which coas tells me is updated, and if not, then return it to factory firmware and take it back to the shop.
Click to expand...
Click to collapse
If you are willing to stick with a Custom ROM, you can try a different setting on the CPU Settings.
Not a long time ago, I had similar problems and solved it enabling "load all modules" and "conservative" settings in the custom recovery.
Good Luck and let me know if it worked for you.
Hi, thanks for the answer. I didn't update the thread, but I can confirm that I took it back to the shop. The guy knew about the problem and replaced the handset, and now it's fine. So it's a hardware issue - he said it happens on around 1 in 5 Defy Pluses.
Hi, I had the very same problem with my defy+, it suffered that issue on CM9 and CM10. I could not resolve it and had to go back to stock, it works fine now.
It seems the problem is more frequent with national roaming in use.
After the replacement, is everything working fine even with CM10?

Gsm Nexus No Service

Hey guys i have a galaxy nexus that is rooted and on cm11 rom baseband is 19250UGLL1 radio this phone always lose reception right now i am at work and my phone says emergency calls only. is there anyway to fix this guys? Thanks
sofia-captivate said:
Hey guys i have a galaxy nexus that is rooted and on cm11 rom baseband is 19250UGLL1 radio this phone always lose reception right now i am at work and my phone says emergency calls only. is there anyway to fix this guys? Thanks
Click to expand...
Click to collapse
I have the same problem, every now and then it will stop having service and the only way to get it back is by rebooting, sometimes it works at first sometimes it needs a couple of reboots.
Any hint with this would be great
(this happened to me with aokp and cyanogenmod)
Willyfrog said:
I have the same problem, every now and then it will stop having service and the only way to get it back is by rebooting, sometimes it works at first sometimes it needs a couple of reboots.
Any hint with this would be great
(this happened to me with aokp and cyanogenmod)
Click to expand...
Click to collapse
I have the same problem but it stopped having service at all, and it's not a sim card problem (the same simcard works in another phone)
Check if your IMEI is valid
lkeops said:
Check if your IMEI is valid
Click to expand...
Click to collapse
Yes, I have a valid IMEI. Sorry to take so long to answer
lkeops said:
Check if your IMEI is valid
Click to expand...
Click to collapse
same problem and i'm having invalid imei
im having almost identical problems... like a month or 2 ago i reflashed to the new 4.3 slim rom. I have been fighting this thing every since. Ive tried so many different radios but yet i still have this issue, sometimes i can go days without problems but now it seems to loose data even sooner. ONLY way i get data (4G) back is if i reboot. Ive tried disabling then re-enabling data, same for airplane mode, nothing works. I think part of the problem is this damn rom.... i used to be on black bean 8 and for the mobile networks it had an option for "CDMA/LTE". This rom must be a ported rom cause the only selection for mobile networks that work is "CDMA/EvDo/GSM/WCDMA". I am on Sprint CDMA and LTE. i dont understand why this was done like this. I Would like to go back to blackbean 8 but i had problems with it and i like some of the settings for this rom better. Anybody have any ideas? Ive tried ALL the radios, none seem to be stable.
oh and i would post in there for the rom's forum but seeing as i havent posted enough here im not able to ask questions about it or anything :-/

[Q]Please Serious tech help! cellular data radio unresponsive

Look i normally dont ask for to much help ive been around a bit know more then the average bear. I also fix hardware.
My problem is my data radio will not switch on from any attempt:
Attempted solutions:
Dialed
*#*#4636#*#*
Will not switch on from that screen
Did the obvious and switched on and off airplane mode
Replaced the entire build.prop file with a very stock build.prop after flashing stock jelly bean
Repeated steps for all stock firmware
Newest attempt wiped the entire system partition through recovery forcefully bricking the phone. I have now flashed the original stock e980 stock 10p tot file still no luck
My phone is completely unlocked fully rooted.
I've replaced the data permission files.
And I know its not the SIM card because the SIM card is in the phone I'm using right now which is an LG g2 unlocked which is for sale by the way.
And if it is a hardware problem I have not found any related video or thread to help me find an exchange where the radio is on this thing
Help me please if anybody has any idea?
Cool no help, hey moderator can u move this to thread that may get more help that would be awesome
i came looking around here because my g pros radio stopped working sometime last night while i was asleep and was about to make a thread asking for help, but seeing as how you haven't got much i doubt i would either. but ill give you a little info on mine, will it help you out at all? not sure. but i know it might make me feel a little better.
I flashed Vanir 4.4.4 last week coming from Beanstalk 4.4.4 cause beanstalk was getting buggy from all the ugly mods i subjected it to. so all was well with Vanir till i woke up this morning and had no service, no calls, no network, AND even if i connected to a wifi network it seemed that i couldn't get any data from it. I tried flashing madmacks modem cause who knows, maybe thatll help, but it diddnt. So then i flashed a different kernel and changed TCP protocols cause who ****ing knows, but it did nothing. THEN i restored my older Beanstalk 4.4.4 backup sure that it would work flawlessly but guess what, same problem. Now that im back on Beanstalk i went to the "Network Operators" option under "Mobile network settings" and selected ATT, which is my service provider, i can now make calls and texts but still no data, when i did this on Vanir it did not help. So i started messing with my "preferred network type" and realized i have data on 2G, but not 3G or LTE. Im gonna take a wild guess and say that maybe if you flash your phone back to 100% stock your radio should start working again, as much as i dont want to, i might end up doing that as well.
tl:dr
similar problem, i dont really know ****, easiest option = go back to stock, hope it works.
@Fant0m3 @alb-o
Have you guys checked if your rom shows your imei?
I have had this problem twice. My IMEI disappeared and I don't know how.
Your symptoms match.
If that's the case you could take it to a repair shop and they'll fix it in a minute or two. Or, you can check around xda.
thats a good point, when i was looking around XDA earlier i saw a few mentions of it but diddnt see anything very specific and was late for class so diddnt have time to look for too long. strangely enough mine actually started working normally again after i kept switching from 2G to 3G to LTE, which is great. but if i would've known that info earlier i could have checked if my IMEI disappeared while my radio still wasn't working, i assume it probably did.
after searching around more i found this thread that talks about it and how to prevent it:
http://forum.xda-developers.com/showthread.php?t=1857054
thanks for the help g0at1, hopefully this helps out the OP if he hasn't already fixed the problem, or anyone else that comes across this.
nope
I've flashed back stock numerous times even flashed other versions such as e988 and back again if u dint know how to do that just change your build number in your build prop file...I've tried everything I am downt to antenna cable SIM reader or cell radio.. If radio I might as well just give up cause I can't find one for sell anywhere...I'm not so pressed as I'm using the LG g2 and it's so fast stable and a bit slimmer I think I'm gonna keep it but I would like to fix it and sell it though...... My symptoms are mentioned and all tried fixes are there. Imei is read carrier is not WiFi is received but there is an X above the data bars phone is fully unlocked as well
This may help also but it does not read my imei when the SIM is not in hmm maybe I will rework the imei code and get back if that works. I will keep updated when fixed and with solution

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