[Q] No Mobile Data After Flashing Radio - T-Mobile Samsung Galaxy S II SGH-T989

I flashed the T-Mobile KL1 radio and I no longer have mobile data (wifi and cell connection work). When I go to Mobile Networks in Settings, it says Insert SIM Card. I flashed back to KID and still the same issue. I flashed the latest version of Synergy (since there was talk of the Hz tweak causing problems) and still no joy. I am without mobile data. Would restoring from a Nandroid do anything? Any suggestions? I'm freaking out here.

Okay, I restored from a nandroid I did right before flashing (let that be an example to always backup) and everything works fine now. Please return to your regularly scheduled forum.
Sent from my beastly Galaxy S 2.

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No Mobile Data - Help please!

Hi All,
I got my Note 2 today, and have run into a problem already
Mobile data (HSPA+) was working when I first got the phone and used it between the shop and the way home.
When I got home, I switched over to wifi to download things.
I then flashed CWM from the cwm-root-note2.tar.md5 file in Dr Ketan's guide using PC Odin.
Then, I flashed Omega v3 via CWM.
All went without a problem.
I was still on wifi and downloading and installing all of my apps.
After a while I turned off wifi and I noticed that I wasn't getting any mobile data connection. I was getting 3 or 4 bars of mobile signal, but no 3G, H or H+ symbol to indicate mobile data.
I messaged a nearby friend on the same carrier and he said his was working fine. So, I figured I must have messed up the mobile network settings,
I checked the APN settings and they were blank, so I put them back in manually.
Still no data connection,
I went into CWM and wiped cache, dalvik and user data.
Still no good.
I downloaded the stock XXALJ1 ROM for Thailand (where I am) and flashed that, did another 3 wipes, but still no luck.
I tried doing a factory reset from the settings menu. But still no joy.
I put the SIM card into my Note 1 and it got a H+ straight away and data was working fine.(when the shop cut it down, they made a nice neat job of it, so the excess makes a decent micro sim holder). So, the network and SIM card are OK.
I noticed that when I first got the phone, the boot screen said "N7100" under "Galaxy Note II".
Now, it doesn't. I'm not sure when it changed.
I also noticed that when I do the under/factory resets, there are still some settings that aren't reset, For example, I set it to WCDMA only to see if that helped and then when I did a factory reset, it was still set like that, rather than the default "auto" that it originally comes with.
Unfortunately I didn't do a nandroid backup, as my phone came with XXALIH (without the multiscreen), so I figured I'd updated to LJ1 first.
Does anyone have any suggestions of what I can do?
Is there a full wipe ROM, or a way to reflash the bootloader and ROM?
It's 3am now, so I need to go to sleep, but this is annoying the hell out of me.
Thanks,
Rich
Carrier please?
wonsanim said:
Carrier please?
Click to expand...
Click to collapse
True Move H in Thailand.
I don't think it's a carrier issue, as I can put the SIM into my Note 1 and get H or H+ data connection straight away.
Also, I compared the APN settings and I have the exact same settings in the Note 2 and Note 1.
Mobile data was working on the Note 2 when I first got it.
Thanks,
Rich
Turn mobile data on in settings/data usage.
I doubt that his data is turned off in the settings is the problem since he already stated that he tried resetting to factory settings.
I'd suggest simply using odin to reflash J1 onto the phone and start from scratch again. This is why the devs always remind people to do a nandroid backup. In case of situations like this.
Sent from my GT-N7100 using Tapatalk 2
Thanks. Yes, Mobile data is ticked. I tried toggling that early on in case it just wasn't connecting properly or something.
I've tried flashing the stock J1 a few ties, but no joy.
It doesn't seem to do a full install, as the circle battery mod I installed previously is still there after flashing stock J1...
I'm downloading a stock XXALIE for Thailand at the moment and will try that.
It's still got 30 mins to go, and I have to leave for work soon! So, I might have to spend the day relying on wifi when I can get it
I'm wondering if the change in boot loader has anything to do with it. (Originally had "N7100" on the boot screen and now I don't, just "Galaxy Note II")
maybe APN settings are wrong? I'm from sri lanka, and I had to add an apn for mobile data to work.
OK, I finally fixed it. Here is what I did (in case anyone else has a similar problem)
Flashed stock LJ1 via odin
Downloaded Galaxy S/S2/S3 CSC
Reset my CSC to THL
Now when it restarted it picked up mobile data signal without me doing anything to the mobile network settings.
I reflashed Omega 3 and lost mobile data again. I tried the Galaxy CSC app, but it says there is only 1 CSC.
So, I went back to stock Thai LJ1.
This time I got an OTA update straight away. After that installed I noticed the boot screen had changed back to showing GT-N7100 again.
ROM is now XXALJ3 and the modem is DXALJ1
Flashed CWM and reinstalled most of my apps from Titanium Backup.
Everything is still OK.
So, it looks like I can't use Omega ROM because it changes the CSC and I can't change it back to THL.
Is there any way to install the CSC separately after flashing Omega?

[Q] I messed up with Titanium Backup and now it says 4g, but data doesn't work

So I had to get a replacement Note 2 from T-mobile because my first one had messed up sensors or something. When I got the new one I wanted to backup and restore all my apps from the original.I used Odin to flash CF auto root and do a app and system backup. Then I rooted to the new one the same way and did a restore. I apparently didn't read enough about Titanium backup and restored everything including the system stuff.
Now my data doesn't work most of the time. Specifically when my phone says 4g, no matter how many bars, nothing has network access. I can make and receive calls and text messages although calls have been very spotty with reception. However if I have 4g LTE signal then everything works great. Can anyone suggest a fix? I flashed the stock rom again and reset APN settings to default, nothing is different. Side note, I was able to reset flash, unroot and return the old phone to T-mobile. Any help is greatly appreciated.
Update:
I noticed that I can get text messages when mobile data is turned off. Not sure if that means anything.
Do factory reset and wipe data. May be solve you problem.
May sure you have flashed stock rom with same phone model.
Sent from my GT-N7100 using Tapatalk 4
MBariya said:
Do factory reset and wipe data. May be solve you problem.
May sure you have flashed stock rom with same phone model.
Sent from my GT-N7100 using Tapatalk 4
Click to expand...
Click to collapse
I did that and it is still the same. Someone has to have seen this issue before. I can't be the only one who has messed up with titanium backup.

Network Data Hosed

I've gotten my phone into a state where I see signal bars, I can make calls and send texts, but no LTE or H+ is displayed and if I try do anything involving the internet it says there's no network connection. Wifi works just fine.
Here's how I got into the predicament. I should have learned my lesson from last time I flashed a Verizon ROM, but I didn't, and I flashed SkyNote RC9Z-3.9.1. Data works just fine in THAT ROM, but any subsequent ROM flashed after that... the network data is completely HOSED. I've tried enabling and disabling network data in settings. I've tried flashing the Devil kernel. I've tried restoring several different ROMS from nandroid backups. All restore fine and all have completely non-working network data. Last time I ran into this I had to flash the stock image in Odin to fiz the issue. This time however, that didn't work. The images flashed successfully, but upon reboot all I got was a a welcome screen bootloop of the samsung swirly logo and the T-Mobile logo.
I'm guessing this has something to do with the 4.3 bootloader? I'm downloading T889UVUCMK7_T889TMBCMK7_TMB.zip from SamMobile site and boy is it taking FOREVER! 7 hours left on the download. My thinking thoug is that If I unzip this new 4.3 firmware and flash it with Odin (or Kies if I absolutle have to) my device will start behaving again, and Network data will work, and I can go about ROM flashing and hopping again (though I'm gonna stay away from those Verizon ROMs let met tell you!).
Does anyone else have any other suggestions on what I can do to get my data back or to patch my bootloader to the 4.3 version? I was looking at this thread and wondering if it's safe to follow this procedure for patching once I have installed the 4.3 stock image:
http://forum.xda-developers.com/showthread.php?t=2500823
Any help is appreciated.
ddi you check your APN settings?
Probably your apn like iamsixnine said
Sent from my GT-I9305 using Tapatalk

[Q] How to enable network data after installing Cyanogenmod CM11 M7?

I tried flashing a custom ROM for the first time last night and so far I am really loving it. The only problem is, after flashing the CM11 M7 ROM it wont access any data over the cell network. I did figure out that if using Titanium Backup I restore my stock ROMs 4.3 data only from the Phone/Messaging Storage (SMS/MMS/APN) then reboot the network data does work. However, this causes the SMS to cease functioning. As soon as any app (default messenger, hangouts, 2-3 others I tried from store) tries to open it immediately crashes. Interestingly, it also will not allow me to restore my SMS records using Super Backup at this point. If I go back into Titanium backup then wipe the data for this process then the SMS starts working again, but all the old messages have been cleared, and as soon as I restart the phone the Network data is not working again.
Any ideas on what to do? I am wondering if maybe I need to adjust something in my APN profile, though I have absolutely no idea where I would get the information to do this.
This is what I am working with:
Phone: Samsung Galaxy S3 i747 (AT&T) -- [though currently I am using a TIGO sim card in Guatemala, wonder if this could have anything to do with it? was not a problem prior to switching the ROM though]
ROM: cm-11-20140608-SNAPSHOT-M7-d2lte.zip , the Cyanogenmod CM11 Snapshot lte release from yesterday
Android Version: 4.4.2
Baseband Version: I747UCUEMJB
Kernel Version: 3.4.91-cyanogenmod-g9b9605b8 [email protected] #1
Anyways, only having one or the other of my network data vs sms working is not really an option for me, so need to figure something out.
Thanks!
bnook said:
I tried flashing a custom ROM for the first time last night and so far I am really loving it. The only problem is, after flashing the CM11 M7 ROM it wont access any data over the cell network. I did figure out that if using Titanium Backup I restore my stock ROMs 4.3 data only from the Phone/Messaging Storage (SMS/MMS/APN) then reboot the network data does work. However, this causes the SMS to cease functioning. As soon as any app (default messenger, hangouts, 2-3 others I tried from store) tries to open it immediately crashes. Interestingly, it also will not allow me to restore my SMS records using Super Backup at this point. If I go back into Titanium backup then wipe the data for this process then the SMS starts working again, but all the old messages have been cleared, and as soon as I restart the phone the Network data is not working again.
Any ideas on what to do? I am wondering if maybe I need to adjust something in my APN profile, though I have absolutely no idea where I would get the information to do this.
This is what I am working with:
Phone: Samsung Galaxy S3 i747 (AT&T) -- [though currently I am using a TIGO sim card in Guatemala, wonder if this could have anything to do with it? was not a problem prior to switching the ROM though]
ROM: cm-11-20140608-SNAPSHOT-M7-d2lte.zip , the Cyanogenmod CM11 Snapshot lte release from yesterday
Android Version: 4.4.2
Baseband Version: I747UCUEMJB
Kernel Version: 3.4.91-cyanogenmod-g9b9605b8 [email protected] #1
Anyways, only having one or the other of my network data vs sms working is not really an option for me, so need to figure something out.
Thanks!
Click to expand...
Click to collapse
I apologize in advanced for not answering your question.
Is your issue that you cannot even get a signal with CM installed? I am also having the same issue.
Did your phone get signal/mobile network with the stock ROM? I am unable to find out if mine will work right now because it would take me a few days to download the stock ROM image...
Will be following this thread...
Mike
Have you checked that the APN on your phone is the right one for your carrier? Google search apn tigo guatemala galaxy s3 Many useful results will come up.
Ok here is how this played out. I did just need to reset then re enter the apn info for tigo in Guatemala. I actually managed to pull this info out of my pre flash backup from when I was using the stock Rom, then wipe the data for the process mentioned. This restored sms functionality and I then was able to manually enter the apn info (if anyone needs the Guatemala tigo apn info just post here and I can grab it when I am next at my cpu). I find it interesting that the apn info was automatically present and correct when I was using the stock Rom, but when I flashed cm11 over it was not there.
Just arrived back in the US and popped in my AT&T SIM card, everything worked fine right off the bat with it.
In answer to your question, after flashing cm11 I did have signal, but only for calls and sms. The data component of the network was not recognized.
Sent from my SAMSUNG-SGH-I747 using Tapatalk

Big problem solved ;)

Im running ViperS 3.0.0 and tried some other roms (Bliss and LiquidSmooth).
With LiquidSmooth i had no data so i restored my nandroid of ViperS, but now ViperS also had no mobile network. My wife, that are on the same carrier, had mobil data and could make calls.
I did a facotory reset and restored the backup again but same problem. Reflashed the Rom but stille could'nt finde any gsm connection.
I thought i had bricked the phone but then i enabled flightmode and disabled flightmode - and now i had carier network!
So flashing a Rom made my phone go to Flight mode and stay there.
Not funny!

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