Develop Bugs

[Q] T-989 - No data network. Mobile Network State: Disconnected

Hi there. I own an unlocked, rooted t 989 Samsung Galaxy SII which I bought in the US. I recently moved to the Netherlands, and got a new simcard with Vodafone. The problem: I can't get my data to work.
I have tried (almost) everything, so prepare for a read. Here's the list:
- Sim card is fine, I tried it in a old phone and 3G pops up instantly
- Rebooted, pulled battery, turned mobile connections on/off, handpicked network, etc, etc, all the basics.
- Got the APN settings from Vodafone. Tried them manually, resetted them, automatically, turned it on, turned it off.
- Going online through Wifi works.
- Under settings-Status it reads under Mobile Network State: Disconnected. But I know that the phone detects the network correctly. It can distinguish between UMTS and GPRS here.
- So there seems to be no trouble with the phone being incompatible with the network. I read online that other people had NO trouble using their T989 in Europe.
- I tried inserting my old American pre paid T mobile sim card and turn roaming on. No luck.
- A lot of other people with the same problem tried to link it to Easy Battery Saver. I tried updating, uninstalling and going into its settings to find out what it could be, but nothing.
The last thing I can still try is to factory reset, unroot and try to get the phone to its most original state and see what it does. But before I triple wipe all my contacts, pictures, apps, etc, I want to make sure I did absolutely everything to try and fix this beforehand. Being a noob here, I can't post any links but I trust you I tried.
The people at Vodafone are of no help whatsoever. I hope you geniuses could help me any further.
[Edit] And sorry for posting this in General Chat. If a mod could move my question to Q&A I'd be most thankful..!

I am having the exact same damn problem! it started with being unable to send a simple text message yet having data. now it says it is searching forever

thijsr said:
Hi there. I own an unlocked, rooted t 989 Samsung Galaxy SII which I bought in the US. I recently moved to the Netherlands, and got a new simcard with Vodafone. The problem: I can't get my data to work.
I have tried (almost) everything, so prepare for a read. Here's the list:
- Sim card is fine, I tried it in a old phone and 3G pops up instantly
- Rebooted, pulled battery, turned mobile connections on/off, handpicked network, etc, etc, all the basics.
- Got the APN settings from Vodafone. Tried them manually, resetted them, automatically, turned it on, turned it off.
- Going online through Wifi works.
- Under settings-Status it reads under Mobile Network State: Disconnected. But I know that the phone detects the network correctly. It can distinguish between UMTS and GPRS here.
- So there seems to be no trouble with the phone being incompatible with the network. I read online that other people had NO trouble using their T989 in Europe.
- I tried inserting my old American pre paid T mobile sim card and turn roaming on. No luck.
- A lot of other people with the same problem tried to link it to Easy Battery Saver. I tried updating, uninstalling and going into its settings to find out what it could be, but nothing.
The last thing I can still try is to factory reset, unroot and try to get the phone to its most original state and see what it does. But before I triple wipe all my contacts, pictures, apps, etc, I want to make sure I did absolutely everything to try and fix this beforehand. Being a noob here, I can't post any links but I trust you I tried.
The people at Vodafone are of no help whatsoever. I hope you geniuses could help me any further.
[Edit] And sorry for posting this in General Chat. If a mod could move my question to Q&A I'd be most thankful..!
Click to expand...
Click to collapse
Try flashing a different radio/modem then an american one?

@decko5 Nice to see I'm not the only one, but that doesn't help us yet .
@doug36 Besides the fact that I'm running a stock ROM that should be compatible with no issues, I'm not sure how I'd do that. I can flash a separate part of the kernel? That sounds like a very tricky thing to do.

thijsr said:
@decko5 Nice to see I'm not the only one, but that doesn't help us yet .
@doug36 Besides the fact that I'm running a stock ROM that should be compatible with no issues, I'm not sure how I'd do that. I can flash a separate part of the kernel? That sounds like a very tricky thing to do.
Click to expand...
Click to collapse
It's actually pretty easy. You can flash most radios via ClockworkMod Recovery. I couldn't find any threads with a list of Galaxy S-II radios here on XDA, but I found one over at RootzWiki for you. http://rootzwiki.com/topic/2725-radio-samsung-galaxy-s-ii-radios-updatezip-updated-20-aug-2011/
Just find the corresponding one to your geographical location and carrier (Google is your friend) and follow the steps.
Good luck and hope it helps!
(p.s. you should definitely look to see which radio you currently have so that you can download a backup of it before you go flashing radios.)

Thanks for that very helpful post! I've raped and butchered Google, but I'm still having trouble finding out which modem I should download. There seem to be so many and the post on RootzWiki gives no guidance to which is which. Any wisdom on this? I'm in the Netherlands, so Western Europe, on a Vodafone network.
By the way. I fully wiped my phone and installed Team Kang's Juggernaut 5.. No luck, same problem. What I found really, really weird is that it was instantly in Dutch. (Which is ok, I speak Dutch) But I don't remember ever selecting a language. How does it know? Besides, I'd rather have it in English .
What I did find out is that I'm still using a old firmware, UVKID, instead of UVKL1. So I'm restoring back to my previous ROM and trying to update. I'll see what happens. If that doesn't work, I'm going to restore my phone to stockest of the unrooted stocks and try and update.
If that doesn't work, I'll have no option but to send the phone to T-mobile.
I'll try the modem update as soon as I understand what I'm doing . But it does sound promising. Thank you so much for your help, it's greatly appreciated!

Hi guys,
I've updated my firmware to UVKL1, still no luck. Anybody who can tell me which radio I should try on this Vodafone network in the Netherlands?

I am from India and had faced this similer issue with many of my android phones specially with captivate and infuse.......Here what i always did to connect data network.
Just uncheck the use packet data network box in mobile network settings and try to move out from that area (say u are in ur office and going back home) and check the data in settings.
This thing has worked for me always, I don't knw if its related to the OS or to the network provider but this has helped.
Have u tried any other network sim card on ur phone ?

An update for other people that might be looking for a solution in the future. It turns out to be a clear Vodafone problem. I tried a different simcard from a different network (both T-mobile Netherlands and KPN), and they instantly worked without any trouble.
I went back to a different Vodafone store in Amsterdam, and they were much more helpful than the first one. The sales guy told me he had seen the same problem with AT&T iPhones on the Vodafone network.
I called Vodafone, and they have been very nice to me. But they haven't found a solution yet and are looking into it. They see me registering to the network, granting me access, but still my data doesn't work. They've also told me that they will let me cancel my contract for no cost if they don't find a solution.
So problem remains unsolved, but at least there's some light at the end of the tunnel. I was close to buying a new 500 dollar phone... Americans going to Europe: Beware with getting a Vodafone simcard. Sorry to the Vodafone guys, but as for now, that's the status.

So to give closure to this issue (I always hate it when people fix their problem without telling the interwebs..)
IT WORKS!
After an initial terrible experience at the Vodafone counter, the headquarter tech guys have really been great to me. So it is indeed a Vodafone problem. American phones always give them a headache. They don't know what causes the problem exactly, but they do have a fix. It turns out that when logging on to the data network, American phones (AT&T iPhones, my T989 SGsII, and some other Android devices) sent some gibberish along that make the Vodafone server go cuckoo.
The solution was, miraculously, to sign me up (for free!) to the WiFi hotspot service that Vodafone provides, and then logging on to a different APN, being: office.vodafone.nl in my case.
Hope this helps anyone who's having similar issues.

T-989 network solution SOLVED ?
thijsr said:
So to give closure to this issue (I always hate it when people fix their problem without telling the interwebs..)
IT WORKS!
After an initial terrible experience at the Vodafone counter, the headquarter tech guys have really been great to me. So it is indeed a Vodafone problem. American phones always give them a headache. They don't know what causes the problem exactly, but they do have a fix. It turns out that when logging on to the data network, American phones (AT&T iPhones, my T989 SGsII, and some other Android devices) sent some gibberish along that make the Vodafone server go cuckoo.
The solution was, miraculously, to sign me up (for free!) to the WiFi hotspot service that Vodafone provides, and then logging on to a different APN, being: office.vodafone.nl in my case.
Hope this helps anyone who's having similar issues.
Click to expand...
Click to collapse
ok the issue here is that some of the t989 are vodafone and some are USA network , now the other solution is that you flash with command prompt which there is a link to that tool im going to upload from the link i got it from . its also a clockrecoverymod , but this 1 asks you for deleting data user on the device and also resets the network includes USA/overseas though if your not customed roms
or any hacked roms , after flashing this device your basically removing any unwanted apps and cache that are hidden during network searching will be fixed bugs , put the simcard in slot but make sure that is a 3G/4G accounts, than its going to reboot the device automatically , it should be searching for service and also will be a circle with a slash on it where the service bar usually is , just wait about 1/2 hour to an hour maximum time let it do its thing , ok whats happening now to the phone is that is thinking with android network with usa and overseas market apps comparing both carriers network also gets the proper address for the custom rom or original kernel, froyo either 1 will get the correct network address and / VPN / and also will be adding both T-mobile/AT&T choose T-mobile dont go for AT&T cause it will research network configuration plus the phone its not unlocked for both its just a network passby to get correct WPN/VPN/clockworkrecoverymod .

Where is an fix?
Sent from my SGH-T989 using xda premium

@#11 That reads like gibberish to me
@#12 I think I posted a fairly extensive report on how I fixed this...?

[Q] SIM Unlock PIN

Hello,
I've bought an unlcoked Galaxy Nexus about 6 months ago, and everything worked perfectly.. until now.
Recently, I've had problems regarding the SIM Unlock PIN.
When I turn on my device, it requires a code.
I can choose to ignore that message and use my phone in any other way but using mobile network (can't text or call).
From what I understand, my phone has been locked to a specific network and I need to get the code to unlock it.
But I have no idea which network my phone is locked to..
Is there any way to find out?
Also, this has happend before, and I, who don't know what to do with it, took it to a guy who fixed it for me (He changed the Android version and did whatever he did.. I have no idea.)
Last night my phone ran out of battery, and today when I charged and opened it, it was locked again.
I don't know what caused it.
Is there any way to remove it permanently?
If not, can anyone help me remove it temporarily without paying too much money to websites I don't trust (Which require to know the network my phone is locked to, by the way...)?
My friend said that when the Android version changes, so does the code.
My currently Android version is 4.1.1 and I can choose to update it. Would it help?
Thank you, to whoever is willing to try and help me.

Is your phone have a GSM sim card??

Yes, I do.

Help anyone..?

[Q] Verizon phone user in China

Courtesy of a very good deal while I was in the USA, I was able to pick up an HTC One M8 for $100. Seemed like a great deal for my first Android phone running 4.4.2. Talked with their support people, to guarantee it wasn't locked, confirmed that with a couple of web sites, then bit the bullet. Now I am back in China, using China Telecom, which is compatible with respect to data transmission, and both voice and SMS works fine.
But data, with a 4G SIM, doesn't work at all. Nor does 3G, or 2G. Oh yes, we have no chickens (G in Mandarin sounds like 'ji', which means chicken). Investigating things, it seems that this is because in trying to configure the phone APN for China Telecom, there is a required field which Verizon doesn't display: PPP. Without a way to set up PPP field to #777, there is no way to get the phone to talk China Telecom's network. Additionally, even when I try to save the APN information, it resets fields like MNC (CT requires 03) back to the Verizon value of 11. WTF? Obviously, it is time for me to venture into the world of a custom ROM, since that might make all the things I need visible. Decided to go with Android Revolution ROM.
I rooted my device with Weaksauce, downloaded all the required files, and was looking into custom recovery when Verizon pushed to me that an upgrade for my phone was available (4.4.3). Decided WTH, maybe that will expose the PPP entry that I need.
Nope, Weaksauce no longer works (and I didn't get to the point of S_off before that happened). the APN menu is now completely locked (with no ability to change anything or create new APN entries), and now I am concerned that Verizon has hosed my ability to get this phone working in China as anything other than a wi-fi capable data machine.
As a first timer delving into this world, I would appreciate some quick pointers to make sure I am going in the right direction.
Thanks in advance.
If you can read Chinese, the settings are supposed to be as follows for the APN:
名称：中国电信互联网设置CTNET (也可以用自己喜欢的)
APN:ctnet
代理：(未设置)
端口：(未设置)
用户名：[email protected]
密码：vnet.mobi
服务器：(未设置)
MCC:460
MNC:03
身份验证类型：PAP或CHAP
APN类型：default
PPP拨叫号码：#777
如下图：

Connects to Guest Networks

Hello,
I have a Samsung Galaxy Note 2, SGH-M317i (Bell Mobility) and recently installed Cyanogenmod 12.1 (Lollipop 5.1.1). All is running well, the device actually seems to be running much faster...probably due to the lack of bloatware that originally came with it. Sure, I miss some of the "cool" features that the manufacturer had added (ie. hand swipe for screen capture), but overall I am extremely happy with the decision to flash the ROM. Although it does self-identify as a SGH-N7105 now. (About Phone > Device model)
Anyway, I have noticed that when I have my guest networks enabled on my home router (an ASUS RT-N66U running the latest Merlin firmware), my phone insists on connecting to the Guest networks (a2.4 and 5 GHz) instead of my full, "regular" network (hidden SSID, but a "Saved" network in the phone). Even if I go into the WiFi settings and tell the phone to forget those entries, it will still try to connect...even going so far as to say "connected" even though I know it does not have the proper credentials. I have no idea what is causing this as the problem was not present on the stock 4.4.2 KitKat that I had previously.
Sure, I could give it the credentials for those guest networks (all are WPA-Personal protected) but I have restricted those from accessing the intranet as they are primarily for guests who come by, so that is not really a viable option.
Does anyone have any suggestions? It seems strange that it attempts to connect and save these networks, so technically, I shouldn't have to do anything to keep the phone from connecting. However, since it insists, I had thought that Android would have a native (not requiring an app) method of blacklisting these networks. I have looked at apps such as WiFi Ruler, but again would've thought that there is a manual way of doing this. (I don't know if this is obvious by virtue of the fact that I am running a custom ROM, but the phone is rooted.)
Thanks!

used this code and off your wifi power saving mode and try *#0011# select wifi..u may need need press the botom left button to select wifi

Very odd. It seems that since installing CM12.1, my device no longer accepts or recognizes USSD codes. I guess I hadn't noticed since I had rooted and unlocked it prior to flashing Cyanogenmod over the stock ROM. I did some reading and I found that there is a patch to enable those codes (and SMS) on CDMA models of the Note 2. However, mine is LTE and does SMS, MMS, and it uses LTE without issue.
Here is a link to that page:
http://forum.cyanogenmod.org/topic/112400-solution-to-sms-and-ussd-code-on-cm121-cm12-cm11-cm10/
Is this something anyone else has experienced? Should I follow the instructions on that page and install the patch?
Again, my phone is a Samsung Galaxy Note 2, SGH-i317M but since the installation of CM12.1 the About Phone > Device model reports it as being a GT-N7105 with a Baseband Version I317MVLUDNH2.
I'd really like to try the solution to my WiFi problem, so if anyone else has had experience with the USSD codes not working please let me know if there is a solution.
Thanks!

To update my last post:
Some USSD codes do work, I watched the pop ups more closely this time and there is one before the "...invalid MMI code" that says "USSD code running". The main one that find interesting no longer works is the one I had used to unlock my phone *#197328640#. I had figured that it would not have disappeared simply by installing Cyanogenmod. Further, I also followed that thread I had posted the link to a little further, and I'm not comfortable flashing the "patch" it leads to as I cannot confirm it's original source and it does sound like it may be another full ROM.

S7 Active for use outside the US (WiFi Calling and Software Updates?)

Hey folks,
I bought an S7 Active from eBay and I'm using it in Ireland. Everything is working fine that I need, but my carrier recently introduced WiFi Calling and upon trying to set it up from the setting menu where it reads
"wifi calling lets you make and receive calls over wifi with your at&t accoumt. when you use wifi calling, information about the country where the wifi connection is made will be sent to your carrier. Learn more about wifi calling (link).
GET STARTED"
I get the following error:
"Wifi Calling activation not successful, try again later"
I rang support for my carrier and they think it's something to do with the handset. They support the S7 and the S7 Edge but as the S7 Active is an AT&T exclusive and appears to have custom AT&T software, it seems like it might be trying to connect to AT&T and it can't?
Also, when I check for software updates, it says AT&T Software Update at the top of the screen, now this doesn't give any errors and it says software up to date, so I'm not sure if this is correct or if there's new software out that it can't connect to update?
Is there any way around this? I know maybe it's possible to ROOT and install a new ROM, but I'd rather avoid that hassle..
Any feedback would be great

I am in the same situation. S7 Active unlocked from EBAY, and using it in Czech Republic with Vodafone sim. Is here chance to get OTA Nougat update?

I'm using one in Canada and flashed the updates described in another thread in this phone's forum. They will reset your phone to factory, but you will have 7.0 nougat and security patches into April, 2017. I doubt any kind of OTA will be forthcoming unless you have an ATT SIM, but I'm not an expert in this at all. I plan on keeping good backups and flashing the updates as they become available. Aside from that, it's a great phone. If they make the s8 active global, then I'll look into getting one some time down the road.

Thanks for the replies. Does the S8 have an active version? I hadn't heard anything on it yet?
so when you flash nougat 7, does it completely wipe and install a new ROM on your phone, or it just updates the AT&T rom, so even with the update, you're still bound to the AT&T settings for updates/wifi calling etc?

Yes, it wipes out the phone completely, you'll have to set it up again. Everything else is same, such as AT&T bloats, wifi calling etc.

Ok thanks for letting me know. So no point I guess if it doesn't solve the issue

I live in Czech Republic. In situation, when I will buy prepaid sim card from AT T, and I will use it in my unlocked S7 Active, it is possible to get OTA Nougat update?

That's not a bad idea, would possibly work for the OTA update, but maybe not if it's not actually connected to AT&T?
It wouldn't work for the wifi calling though I'm sure?

faronium said:
I'm using one in Canada and flashed the updates described in another thread in this phone's forum. They will reset your phone to factory, but you will have 7.0 nougat and security patches into April, 2017. I doubt any kind of OTA will be forthcoming unless you have an ATT SIM, but I'm not an expert in this at all. I plan on keeping good backups and flashing the updates as they become available. Aside from that, it's a great phone. If they make the s8 active global, then I'll look into getting one some time down the road.
Click to expand...
Click to collapse
I'm in Edmonton AB, Yes, there will be nothing for updates or WiFi calling if you are not on the ATT network with their SIM.
Which ROM did you update to, the QD4, or past it?

Keep it rolling
I'd love to know more about using the S7 Active internationally from anyone who has been down that road already. In the UK and considering getting one from Ebay but I would immediately want to update it to Nougat and I'm unsure if this will be possible? I have a Mac laptop in the house and would hope to use that to apply any upgrades. Really appreciate any info you guys have!

mmmbient said:
I'd love to know more about using the S7 Active internationally from anyone who has been down that road already. In the UK and considering getting one from Ebay but I would immediately want to update it to Nougat and I'm unsure if this will be possible? I have a Mac laptop in the house and would hope to use that to apply any upgrades. Really appreciate any info you guys have!
Click to expand...
Click to collapse
ODIN is only available for Windows (Vista/7/8/10). You will have to run Wine for just the Odin program or Boot Camp for the full Windows OS in a partition.
Wine is the easiest solution, start there and install the program, USB drivers.

UnableToResetOldProfile said:
ODIN is only available for Windows (Vista/7/8/10). You will have to run Wine for just the Odin program or Boot Camp for the full Windows OS in a partition.
Wine is the easiest solution, start there and install the program, USB drivers.
Click to expand...
Click to collapse
I to am in the UK and purchased a S7 Active from Ebay. The phone came in a sealed box and worked fine. No AT&T logo at startup or bloatware. However when I rebooted the phone after switching of, an integrity error came up which forced me to wipe/erase the phone. I thought maybe a first time glitch but it did it again and all was lost. Had my old S4 Active so persevered and read info on this post to reflash firmware to QB2 using ODIN. Now note this is the first time i have ever attempted anything like this so complete newbie. However all went well and I now have a phone on Nougat. It reboots without error now. But it is now back to AT&T with logo at Startup and US voice for google navigation etc... Google pay now does work though. I am pleased with my results but would love to have firmware that makes it non AT&T specific for use in the UK, any ideas would be greatly appreciated.