Database Info

[Q] Why can't i get data connection after flashing a new ROM?

I have a Koodo Nexus S on rogers currently running CM 7.0.3. I have had the urge to flash a few ROMS and i have done so unsuccessfully. Every time i flash a ROM i lose my data connection.
I flash back to stock, i lose my data connection. It shows that i have a UMTS (3G) connection but no data can be transfered.
I double check my APN's every time i flash but i always have to nandroid back to CM to get the phone to work properly.
I have also flashed and got the carrier to reprovision my data to no avail...can someone help me out? Perhaps the build.prop file?

have you tried manually re-creating the APN settings?
the ones from backup might be corrupted?

AllGamer said:
have you tried manually re-creating the APN settings?
the ones from backup might be corrupted?
Click to expand...
Click to collapse
Yes sir. I delete the default ones that come with the ROM be it factory or custom ones and replace them with what works with my CM nandroid. My network state shows connected. In the 4636 dialer menu it also shows connected but the ping fails and i cannot browse or setup an account.

Anyone got any ideas?
Sent from my Nexus S using XDA Premium App

IMEI restored, still no data

Trying to help a friend who lost his IMEI (showed as 0), I restored it with the QPST method successfully. All the numbers are there and the IMEI is correct, but it still doesn't have data. I tried calling the number in the older efs backup thread to reprovision, and it didn't seem to do anything, but while I was messing around with it the icon popped up and I had one bar of 4G, but it disappeared after a few seconds. I'm out of ideas and I would greatly appreciate any help. Thanks!
Sent from my Incredible 2 using Tapatalk 2

Sorry to bump, but this is getting lost down here...
Sent from my Incredible 2 using Tapatalk 2

Have you used Odin to restore the stock rom?

con247 said:
Have you used Odin to restore the stock rom?
Click to expand...
Click to collapse
I tried, but but it failed, and don't remember the exact message. It's just on root66 right now.
Sent from my Incredible 2 using Tapatalk 2

prototype7 said:
I tried, but but it failed, and don't remember the exact message. It's just on root66 right now.
Sent from my Incredible 2 using Tapatalk 2
Click to expand...
Click to collapse
If on stock (root66 sounds) dial: *2767*3855#
Back up anything you may want on the internal storage before doing so. Should fix it if it's fixable.

This ^^^^.
I had lost mine also and followed the same instructions, got it all back, but no data return. You need to reprovision your phone by following the key sequence. I think you need to be stock to do it too (could be wrong). After doing that, all my stuff returned to 100% fully functional.

You definitely need to be on stock for it, though? What's it do specifically? I never outright lost my IMEI, but I did have a problem where data would intermittently cut out and it didn't display a phone number in the system info.
After a wipe and install it seemed to be okay, but now I'm without data. Phone number and all the other numbers are there, though. If I dialed that on CM10, what could I expect?

Zalithian said:
If on stock (root66 sounds) dial: *2767*3855#
Back up anything you may want on the internal storage before doing so. Should fix it if it's fixable.
Click to expand...
Click to collapse
I already tried that, it didn't work. I just tried it again and it still didn't work, but I left it locked for a while and when I unlocked it, the 4G icon was there for a few seconds, and then went back to no signal and it hasn't come back.
Sent from my Incredible 2 using Tapatalk 2

prototype7 said:
I already tried that, it didn't work. I just tried it again and it still didn't work, but I left it locked for a while and when I unlocked it, the 4G icon was there for a few seconds, and then went back to no signal and it hasn't come back.
Sent from my Incredible 2 using Tapatalk 2
Click to expand...
Click to collapse
Hmm if that doesn't work I'm not sure what else there is. Maybe a new SIM or phone, all I can think of

a new sim is needed, or you just have a data-bricked phone if that wont work... sorry bud

I'm not sure what it's doing, but I don't think it's unrecoverable. If I leave it for a while, when I unlock it I'll have a bit of 4G signal, then it disappears after a few seconds. I was able to use the browser while it had signal, but when I try to make a call it says "Mobile network unavailable." I did receive a few texts, I'll test sending them. Under Settings>About device>Status, all the numbers are there and everything looks normal except these:
Network - Searching for Service
Mobile network type - Unknown:0
Service state - Out of service
Mobile network state - Disconnected
Thanks for the help so far.
Sent from my Incredible 2 using Tapatalk 2

prototype7 said:
I'm not sure what it's doing, but I don't think it's unrecoverable. If I leave it for a while, when I unlock it I'll have a bit of 4G signal, then it disappears after a few seconds. I was able to use the browser while it had signal, but when I try to make a call it says "Mobile network unavailable." I did receive a few texts, I'll test sending them. Under Settings>About device>Status, all the numbers are there and everything looks normal except these:
Network - Searching for Service
Mobile network type - Unknown:0
Service state - Out of service
Mobile network state - Disconnected
Thanks for the help so far.
Sent from my Incredible 2 using Tapatalk 2
Click to expand...
Click to collapse
Have him activate another phone on his account and then reactivate the s3. I'm not sure if this will help. It's only a theory really! If you decide to try please Let me know if it works. Thanks
Sent from my SCH-I535 using xda app-developers app

On mine, I restored to the Nandroid backup I made of the stock rom before switching and dialed the number mentioned before. That brought it back to out-of-the-box stock. Set it up, tested data, rooted, unlocked bootloader, installed CM10, tested data, restored apps, tested data, made another Nandroid backup, restored system apps and preferences, and everything's fine now.
My problem was really similar to that one, too. It started when the phone wasn't coming on when I pressed the home or power buttons, and after a battery pull it showed the phone number as "Unknown." A wipe and reinstall of CM10 showed all the correct numbers in the right places and seemed to fix it all, but data was back out in time. That was how it was every time I reinstalled that way; it'd work for a bit, then stop until I reinstalled again. Restoring my IMEI backup as a "just in case" hadn't helped either. Getting everything right again was arduous, but worth it.

Alright my dad has got a similar problem. He lost his IMEI before, we managed to get it restored and data working and all that good stuff. Well today he had to fly to Denver and put the phone into airplane mode, well when he came out of airplane mode it was stuck on roaming mode, and network is "Unknown" his IMEI, phone number, and all those numbers are correct but hes still stuck in roaming. We tried pulling the sim card, and going back to a root66 backup and then reprovisioning the phone. Any other ideas? Should he go back to complete 100% unrooted stock and then reprovision? Any help would be great

I've had the problem come back for me, so disregard my earlier post. I'm back on stock now with no data issues so far, so I'm going to sit on that for a bit to see if the problem is definitely with CM. It's been gradual every time I've fixed it; last time I lost LTE before 3G.

coldcaption said:
I've had the problem come back for me, so disregard my earlier post. I'm back on stock now with no data issues so far, so I'm going to sit on that for a bit to see if the problem is definitely with CM. It's been gradual every time I've fixed it; last time I lost LTE before 3G.
Click to expand...
Click to collapse
are you on stock unrooted? or stock rooted?

Neverendingxsin said:
are you on stock unrooted? or stock rooted?
Click to expand...
Click to collapse
Stock rooted. Gotta have my titanium backup!

coldcaption said:
Stock rooted. Gotta have my titanium backup!
Click to expand...
Click to collapse
did you use odin to return to stock rooted? or just restore a nandroid?

Neverendingxsin said:
did you use odin to return to stock rooted? or just restore a nandroid?
Click to expand...
Click to collapse
Restored a Nandroid. LTE isn't working though, so I may dial *2767*3855# to go back to full stock and see if that fixes it. Currently 3G is still okay.

A question...
Those losing their IMEI numbers... Is this happening on the locked bootloader? Unlocked bootloader? Both?
I've been digging through the forums trying to ferret out a pattern, but it's not presenting itself to me. Maybe someone else has seen the pattern?

[Q] [SOLVED] Loose mobile data and APN's after any/every JB flash.

This happens every time I flash a JB ROM.
Everything else seems to work fine.
But...
As soon as I disable wifi, my mobile data greys out and I have no internet connection. If I re-enable wifi, my mobile data comes back.
If I am out of wifi range, mobile data greys out and no internet connection.
When mobile data works....it works.
Looking at my APN settings shows no APN's at all. It will let me populate a new APN, but when I press "save" it just goes away and leaves nothing. I've tried rebooting after also.
My IMEI information shows up in the settings screen. Not jibberish.
Flashing back to stock restores my mobile data fine.
Mobile data works fine when I upgrade to ICS from GB before attempting JB.
The phone reacts to flashing exactly as the instructions indicate.
This has happened every time I try to go from ICS to JB.
I tried completely wiping (int sd and all)my phone before flashing (over and over again) and I'm following andros instructions fully.
While on JB, could using Odin to restore an efs backup I made while on GB help this? Is it possible to just upload the backup without returning to stock? I tried to restore the efs backup with Root Explorer but it didn't fix anything obviously. And I can't seem to even connect fully using EFS Pro (won't see com ports on the Qualcomm screen). Nitrality is an app that claims to backup/restore the efs folder but I haven't tried restoring one yet.
I'm not even sure the problem lies within the efs folder.
Ive gone through this a million times and it is the same no matter what I do or "try". It is the same for me with any JB ROM.
Searching the forum has gotten me this far, but now I'm stuck. Any help would be greatly appreciated as I refuse to accept failure.
Sent from my SGH-I997 using Tapatalk 2

Re: [Q] Loose mobile data and APN's after any/every JB flash.
Now I'm thinking an app like GetRil might solve this. But the Infuse is unsupported.
Does anyone know of a similar app that supports the Infuse?
Sent from my SGH-I997 using Tapatalk 2

idk..this may sound silly but if you want to try:
1. go back to stock gb
2. take out sd card
3. factory reset
4. cm9 flash twice..run it to see it imei and data is intact. then boot into cwm. factory reset
5. flash a 4.1.1 build..check imei and mobile data.
6. then flash 4.2.1 build
...disclosure: i'm guessing

Re: [Q] Loose mobile data and APN's after any/every JB flash.
Hmm. Interesting. I didn't think of trying to step up the JB versions. I'll try that and report back. Thx.
Sent from my SGH-I997 using Tapatalk 2

I first re-downloaded all my ROM's and GAPPs on the computer.
I've been able to keep mobile data all the way to 4.1.2.(Paranoid) But after that it's as I described:
IMEI shows up and is correct.
No APN's listed and can't save a new APN.
"Mobile Data Status" shows disconnected.
If wifi is on and connected, mobile data "works" fine, but still shows no APN's and disconnected in settings as above.
Resetting to default APN says it completed, but nothing's there. I tried rebooting after and checking.
Wanna hear something really strange...
Since I knew I was going to have to go back to stock once again, I decided to step back to 4.1.2 just to see what would happen.
4.1.2 installed fine and my mobile data was once again working correctly.
Still working on it.

bufordjustice said:
I first re-downloaded all my ROM's and GAPPs on the computer.
I've been able to keep mobile data all the way to 4.1.2.(Paranoid) But after that it's as I described:
IMEI shows up and is correct.
No APN's listed and can't save a new APN.
"Mobile Data Status" shows disconnected.
If wifi is on and connected, mobile data "works" fine, but still shows no APN's and disconnected in settings as above.
Resetting to default APN says it completed, but nothing's there. I tried rebooting after and checking.
Wanna hear something really strange...
Since I knew I was going to have to go back to stock once again, I decided to step back to 4.1.2 just to see what would happen.
4.1.2 installed fine and my mobile data was once again working correctly.
Still working on it.
Click to expand...
Click to collapse
very odd...I guess your phone doesn't like 4.2.1.
Good luck with it, though.
Sounded like you've pin-pointed the problem to a change from the 4.1.2 to 4.2.1.

Im losing it all after i went back to stock gb 2.3.6

I changed the APN settings on my device as http://forum.xda-developers.com/showthread.php?t=1791526 advised. I'm running 4.2.1 AoCp and my mobile data, MMS, etc. all works fine.

aturbs said:
I changed the APN settings on my device as http://forum.xda-developers.com/showthread.php?t=1791526 advised. I'm running 4.2.1 AoCp and my mobile data, MMS, etc. all works fine.
Click to expand...
Click to collapse
Yup. Those are the settings I try to input, and the thread I try to use to do it. But it won't save.

Re: [Q] Loose mobile data and APN's after any/every JB flash.
bufordjustice said:
Yup. Those are the settings I try to input, and the thread I try to use to do it. But it won't save.
Click to expand...
Click to collapse
Are you themed? Believe it or not....a heavy theme could do crazy things.
From One Of My Many Collective Devices!

mine would loose its imie. i would have to flash back to stock gb and then cm9 let it boot up and then flash cm10 4.1.2 if i flashed another rom before cm10 4.1.2 my imie was gone.i could flash any4.1 or 4.2 rom after flashing cm10 and be fine.

Re: [Q] Loose mobile data and APN's after any/every JB flash.
Wow thanks
Sent from my SGH-I997 using xda premium

Molon Labe said:
Are you themed? Believe it or not....a heavy theme could do crazy things.
From One Of My Many Collective Devices!
Click to expand...
Click to collapse
Thanks but nope.
This happens every time even when starting fresh from stock.
I am not altering the ROM itself before flashing in any way.
Immediately after flashing a 4.2.+ from 4.1.2 the APN's are not appearing. But my IMEI info is.
But if I go back to 4.1, the APN's are there so I'm thinking the APN's aren't being deleted during the flash?
In the process of flashing, I've made sure all the ROM's "worked" and the APN's were there before stepping to the next one.
I feel like I'm insane.

Re: [Q] Loose mobile data and APN's after any/every JB flash.
Can anyone tell me what controls the migration of the APN info when flashing from 4.1 to 4.2?
Also, what controls the addition of new APN's and where are they saved?
Is there any place I can look within the ROM or kernel to help see if the APN info is really missing.
Personally, I think the APN info is there, but something is not installing completely when flashing.
Sent from my SGH-I997 using Tapatalk 2

This thread is exactly what I'm talking about. Unfortunately it's for the SII, but it's the same. The bummer is that we can't run GetRil on the infuse. I'm stuck again. At least it's nice to know I'm not the only one with this particular issue. Any help?
http://forum.xda-developers.com/showthread.php?t=1848749&highlight=dreaded+apn

bufordjustice said:
This thread is exactly what I'm talking about. Unfortunately it's for the SII, but it's the same. The bummer is that we can't run GetRil on the infuse. I'm stuck again. At least it's nice to know I'm not the only one with this particular issue. Any help?
http://forum.xda-developers.com/showthread.php?t=1848749&highlight=dreaded+apn
Click to expand...
Click to collapse
try one of these:
http://forum.xda-developers.com/showthread.php?t=1869159

Working!!!
qkster said:
try one of these:
http://forum.xda-developers.com/showthread.php?t=1869159
Click to expand...
Click to collapse
It's working!!! :good:
I grabbed the UVKJ6 modem, flashed it, and APNs are displayed and working.
I've tested with 4.2.2 versions of Beanstalk, Paranoid, SlimRom, PAC, and The Collective's (shout out to dman who spoiled me with Zeus).
Tried to re-download and install the JB version of my trusty UCLB3 modem, but it would not work (for me) with any of these ROMs.
I've never been so happy to have my notification bar freeze! Lol.
I'm assuming this all has something to do with the stage of development for JB? Idk.
I can't thank you enough. You really came through when I needed help. Thank you Sir.

Good to hear.
You Prolly just needed to re flash a modem.
Blscallions deserves the credit for putting those together.
You can add a [SOLVED] to your thread title

I'm having the same problem as you, but my data won't work at all even after turning wifi on/off. On the pull-down menu it says that I have no service. I would love to try the modem fix, but this is all brand new to me and I have no idea how to do it. Can someone help me out here?

lemonz23 said:
I'm having the same problem as you, but my data won't work at all even after turning wifi on/off. On the pull-down menu it says that I have no service. I would love to try the modem fix, but this is all brand new to me and I have no idea how to do it. Can someone help me out here?
Click to expand...
Click to collapse
I had to flash a different modem. Not sure why, but it fixed my problem. What I did was:
1. Downloaded a few different modems from http://forum.xda-developers.com/showthread.php?p=31097259
2. Reboot into recovery.
3. Select to Install zip from SD card.
4. Locate one of the modem. (In the folder).
5. Flash the modem.
6. Clear cache and dalvik cache.
7. I selected to fix permissions. Probably don't have to do this. But I did.
8. Reboot and test. If it doesn't work, flash another modem and try again.
If no modem works, then its probably not the modem. Hopefully you removed the SD card when flashing from ICS to JB. And hopefully your IMEI # is showing and correct.
It goes quick. I hope this works for you. If you need more detailed instructions, just let me know.
Sent from my SGH-I997 using Tapatalk 2

[Q] At a loss, data but no voice/sms

I was running the latest stable version of CM10.1 on my GS3 and all was going well until someone sent me a text message and I tried to respond. I was greeted with the error of message not sent. I attempted to text someone else to have the same error. Attempting to call someone will just hang and eventually say call failed.
I thought it was a radio issue so attempted to flash different modems but had the same result. So I restored my previous rom Beans 11 that was working after wiping and the same issue. Data works perfect, but voice and text does not. I searched and odin'd back to stock VRLG1 and entered *2767*3855# in hopes of that fixing the problem, again no voice/text.
Any suggestions further help? I don't know what else to try!
*CM10.1 was working fine, and then calls/texting stopped but data continued to work without trouble.
*IMEI seems to be intact
*Flashed backup of known working rom and issue still persists
*Flashed back to VRLG1 and attempted *2767*3855# as per another post to no avail and this is where I sit.

Same thing. Installed jellybeans 12 now I can't call or text. Prior text was hit and miss some days....restored stock rooted image flashed other Roms....no help. Dialed the ** number....so screwed. Ayneegry should have backed up my few several times. No idea what to do.
Sent from my SCH-I535 using Tapatalk 2

When you say "Data" do you mean wifi or 3g/4g? If you have no phone/text/3g/4g then it's probably your imei. Check under phone settings, see if it's gone. If it's gone you gotta restore, do a search.
If you have 3g/4g then I don't know what the problem is. Sorry, just trying to help

Odin back to ICS and reprovision your phone by going into the dialer and typing *2767*3855#

rgrossie - data as in 3G/4G works no problem... phone showed IMEI still there but followed a thread to restore it anyway to make sure that wasn't the issue...
Edgehood -- I've tried that, and that's where I currently sit, stock ICS with 4G data but doing the re-provision doesn't seem to fix anything -- occasionally a text will slip through, but I'm unable to reply

astrocity said:
Same thing. Installed jellybeans 12 now I can't call or text. Prior text was hit and miss some days....restored stock rooted image flashed other Roms....no help. Dialed the ** number....so screwed. Ayneegry should have backed up my few several times. No idea what to do.
Sent from my SCH-I535 using Tapatalk 2
Click to expand...
Click to collapse
I hear ya, if I can't figure out what's up, I'll end up having to go back to verizon and see what I can do... It was out of the blue, everything was working and then suddenly it just stopped. Happened on a flash that was a little over a day old, so who knows.

Check Mobile network
I have thiss problem happen occasionally when I flash custom roms. Look under your mobile networks, see if either CDMA/SIM is checked or NV. If NV is checked switch to CDMA/SIM and then reboot. That seems to fix that problem most of the time.
Edit: After some tests found out this doesn't always stick, but I did find out that after switching from NV to CDMA/SIM turn on airplane mode so the radios are tunred off, wait a few moments, then turn airplane mode off. That worked more consistently than restarting it.

MrRevesz said:
rgrossie - data as in 3G/4G works no problem... phone showed IMEI still there but followed a thread to restore it anyway to make sure that wasn't the issue...
Edgehood -- I've tried that, and that's where I currently sit, stock ICS with 4G data but doing the re-provision doesn't seem to fix anything -- occasionally a text will slip through, but I'm unable to reply
Click to expand...
Click to collapse
Did you ever fix this? I currently have the same problem and have no idea what to do.

i had the same problem but a imei/efs restore fixed it. My imei was not missing but data worked and not calls or text. Changed sim and still same, even odined back to stock and unlockex and rooted no luck restored nandroid no luck. Then restored synergy imei/efs backup and good to go. Hope it helps.
Cruzin' tha Galaxy SIII via Obsessed Rom / "INAPPROPRIATE" Kernel

I had the same issue two days ago when I flashed to the latest MIUI Rom. Here's how I fixed it.
Go into settings, mobile networks, make sure subscription is set to SIM. After that open the phone, type *#*#4636#*#* make sure it's set to LTE/CDMA/AUTO
Reboot phone and all should be well.
Sent from my 16GB Blue Verizon Galaxy S3 running MIUI v5 with KT kernel

If you Odin back to the original stock unroofed ROM, you'd have to take all the ota Verizon updates to vmf1. Then reset your phone.
Pain in the a$$ but has always worked for me. I had same problem running carbon.
I read in another post that Odin back to root66, them reset your phone would work too.
Sent from my SCH-I535 using xda app-developers app

Stuck in Roaming

My wife's S3 went haywire this morning. Out of the blue, it lost voice and data. The phone was on Synergy, an older version, for quite awhile when this happened. I reset the IMEI, nothing. I Odined back to stock, and now everything is working, except it has the triangle above the signal bars, meaning it thinks it is roaming. I've tried everything I can think of. Wiped data multiple times, reformated through ODIN several times, it still comes up with the triangle. How can I reset this so the phone doesn't show roaming?

I never had that problem but I did have a problem with the phone not going into roaming. I also tried everything even got a new sim card didn't help. Then I did a factory data reset from the settings instead of TWRP and as soon as the phone rebooted I was able to use it in Canada. Now I understand that you're having the exact opposite problem but have you tried to do a data factory reset by going into settings then backup and reset . That might help. I mean I have done a data reset in recovery but that didn't work.
Sent from my SCH-I535 using xda app-developers app

Interesting. I'll give that a try.

Nope, it didn't work. I'm at a loss. I figured reverting to stock would have corrected it, but it hasn't.

I was up late trying to get this working. It remains stuck in roaming. I guess that's an improvement from having no mobile connection, but I could still use some help. Here are things that I've tried.
Odin to stock. it boot looped. I had to flash the TWRP recovery chain and clear cache before it would boot.
Odin to JB.
Flash latest synergy.
Repair IMEI. It was incorrect when the issue first happened, but now it is corrected.
changed the settings from global to LTE, and other various tweaks.
Something I noticed is that most of the APNs are greyed out under Mobile Networks. Only EHRPD - Verizon 800 and EHRPD - Verizon Internet are selectable. This is not the case for my phone. They all are selectable. I have a feeling this is where the issue lies, but I have no clue how to fix it.

Try to reprovision the SIM

The dialer doesn't do anything when I try using the code *2767*3855# Does it not work after upgrading to JB or must I revert back to stock?

Yes revert back to I believe it's G1/G7 I believe it's something like that
Sent from my SCH-I535 using Tapatalk 2