Develop Bugs

(Prepaid) Mobile data lost after ROM flash

Hey there,
I'll try to be as specific as I can about this... So basically, I have the i747 through AT&T but am currently out of the country (in Japan) for a couple months and am using a prepaid data only SIM. Phone is unlocked and data works fine on stock, but I've tried flashing for the first time since leaving the US (with BeanStalk 4.3, MIUI, and LiquidSmooth using first CWM, then TWRP) so I'm guessing this isn't a particular ROM issue.
I'm unable to connect to the Japanese Docomo network when I flash. The phone recognizes the network, IMEI is still intact, but the APN is gone (so I tried APN backup/restore to get the option back, but still no data). Then I reflashed most of the i747u modems, also to no avail.
Also got out my AT&T SIM, which still works on stock. APN shows up, but no voice/data.
Anyone have an idea of what the problem could be? Any other options I missed? As a disclaimer, I don't really have experience beyond clearly written directions posted here, but I read a lot before I try anything and have been flashing my last couple phones with good success.
Thanks so so much to anyone who reads

Note 2 No data coverage after 4.3 update?

Just upgraded to 4.3 today but my data services don't seem to function well. Can someone please help me?

Same problem here..

Looks to be an issue with TWRP, have either of you tried the latest CWM recovery? I was hoping to avoid it since my nandroid backup was TWRP (I'm honestly not sure if there's a difference) but a few posts in the main threads are reporting a similar thing.
EDIT: Nope, same issue, at least for omnirom.
I take that back, it does work.

Go to Settings - Network Connections - More Networks - Mobile Networks - Access Points Names
Check and see if you have the APNs from your provider, they usually are 3 ([Provider] Internet, [Provider] WAP, [Provider] MMS - in my case). Make sure [Provider] Internet is selected. When I usually re-install some ROMs, the WAP APN is selected by default and that will show me the 3G data icon but it will not let me access internet resources with my data services.
If by any chance you are missing the Internet APN, search a bit on the internet for your provider APN settings for internet access.
Hope this works.

lolozaur said:
Go to Settings - Network Connections - More Networks - Mobile Networks - Access Points Names
Check and see if you have the APNs from your provider, they usually are 3 ([Provider] Internet, [Provider] WAP, [Provider] MMS - in my case). Make sure [Provider] Internet is selected. When I usually re-install some ROMs, the WAP APN is selected by default and that will show me the 3G data icon but it will not let me access internet resources with my data services.
If by any chance you are missing the Internet APN, search a bit on the internet for your provider APN settings for internet access.
Hope this works.
Click to expand...
Click to collapse
It just acts like there's no SIM card at all. I don't understand it completely, but CWM is doing something that TWRP is not (or vice versa) and is causing this issue. Took my 7105T from virgin vanilla stock to the omnirom 4.4.2 nightlies yesterday and when I flashed from CWM the issue was resolved.
That said though, I'm unsure how this will affect omnirom's updates so I might need to switch to cyanogenmod. Shame, because I do prefer TWRP.

BadKingDookie said:
It just acts like there's no SIM card at all. I don't understand it completely, but CWM is doing something that TWRP is not (or vice versa) and is causing this issue. Took my 7105T from virgin vanilla stock to the omnirom 4.4.2 nightlies yesterday and when I flashed from CWM the issue was resolved.
That said though, I'm unsure how this will affect omnirom's updates so I might need to switch to cyanogenmod. Shame, because I do prefer TWRP.
Click to expand...
Click to collapse
try to change different modems.
i hope it will work
dont worry, it happened to me also

Kindly check ur imei if its generic 0034*****
I got the same problem also
Sent from my GT-N7100 using xda premium

try to revert to original stock rom

sabharwalrahul91 said:
Kindly check ur imei if its generic 0034*****
I got the same problem also
Sent from my GT-N7100 using xda premium
Click to expand...
Click to collapse
Try to change modems.

ken_alpha24 said:
Just upgraded to 4.3 today but my data services don't seem to function well. Can someone please help me?
Click to expand...
Click to collapse
try to factory reset your device
it seems you missing your IMEI
it happens in some device,,,
or if you still have warranty just go to your retailer

Problem solved. Got to the service center to reflash FW. Ty guys
Sent from my GT-P3110 using xda app-developers app

cant access apn settings after 4.3 update
ken_alpha24 said:
Problem solved. Got to the service center to reflash FW. Ty guys
Sent from my GT-P3110 using xda app-developers app
Click to expand...
Click to collapse
I don't know what you guys are talking about but I can't even access the APN settings, its invisible. I have a SCH R950 note 2. H2o wireless already took my money but told me I needed to unlock it, even though I can't unlock a CDMA phone. im so confused because it is quad band and has sim card slot but no one can unlock it and I cant find how to flash to h20

CM11 No Mobile Network, Mobile Network State Disconnected

Whenever I flash cm 10.2 cm 11 any rom at all I face the problem of no internet. So I go back to stock. I have my baseband, build # important stuff like that. I always have to take out my assert lines. So when I flash any rom the fine line will say;
;Mount
or something like that I delete all the assert lines and I was told to keep assert lines but just change them to my baseband and stuff. Any help would be appreciated. & btw the problem is it says Mobile State: Disconnected. But I'm in service too.

I have the same problem. Been searching for a while and trying different fixes, but doesn't seem to be working. I'm on ATT galaxy S3, tho. If someone's got a working ATT S3 and let me know exactly what ROM, gapp, modem, etc they used, would much appreciate it.

Keyonwise said:
Whenever I flash cm 10.2 cm 11 any rom at all I face the problem of no internet. So I go back to stock. I have my baseband, build # important stuff like that. I always have to take out my assert lines. So when I flash any rom the fine line will say;
;Mount
or something like that I delete all the assert lines and I was told to keep assert lines but just change them to my baseband and stuff. Any help would be appreciated. & btw the problem is it says Mobile State: Disconnected. But I'm in service too.
Click to expand...
Click to collapse
More info is needed, such as carrier. I'm guessing either Virgin Mobile or Boost if you need to remove asserts on any of the pre-unified builds (this would hold true for any ROM that has switched to d2lte from d2spr). If that is the case, then you don't have the correct APN's configured. Also, it usually doesn't hurt to be running the most current modem (MK3 for Sprint, MK5 for VM/Boost). Again, the more info the better, then people don't have to play Twenty Questions in order to get to the heart of the matter.

This may work...
So, after trying countless options that i found on this site, and after dozens of flashing roms, modems, kernels, booloaders, restores, etc... turns out that i was doing everything right and there was nothing wrong with the install or the phone itself. After contacting my carrier (PTEL Mobile) for the third time, (first time they told me they had an outage, second time they told me to set the APN setting correctly - neither of which was incorrect on my end or the cause), they said they will try RESETting the DATA on their end. And guess what - that worked.
If you think you did everything correctly but still not getting data, i suggest you make your provider to do the same, or at least pry them as much as you can about your problem and what they can do about it. I wasted to much time and effort (my poor phone) on this and the solution was simple, and not my fault. Hope this helps others.

Mr. Struck said:
More info is needed, such as carrier. I'm guessing either Virgin Mobile or Boost if you need to remove asserts on any of the pre-unified builds (this would hold true for any ROM that has switched to d2lte from d2spr). If that is the case, then you don't have the correct APN's configured. Also, it usually doesn't hurt to be running the most current modem (MK3 for Sprint, MK5 for VM/Boost). Again, the more info the better, then people don't have to play Twenty Questions in order to get to the heart of the matter.
Click to expand...
Click to collapse
Hiya, I'm currently having the same problem as the OP. Mobile state disconnected but it says I am in service. Using latest version of Philz recovery and I flashed the most recent nightly of the Cyanogenmod 11 -4.4.2 KitKat (April 5th, 2014).Carrier is Virgin Mobile, using Samsung Galaxy SIII SPH-L710. PRL is most recent one 33030 and modem is MK5. I did however, flash the rom without deleting the assert lines, since I did not know I had to delete some assert lines. Any help with this? Thanks.

S0lstice said:
Hiya, I'm currently having the same problem as the OP. Mobile state disconnected but it says I am in service. Using latest version of Philz recovery and I flashed the most recent nightly of the Cyanogenmod 11 -4.4.2 KitKat (April 5th, 2014).Carrier is Virgin Mobile, using Samsung Galaxy SIII SPH-L710. PRL is most recent one 33030 and modem is MK5. I did however, flash the rom without deleting the assert lines, since I did not know I had to delete some assert lines. Any help with this? Thanks.
Click to expand...
Click to collapse
Deleting asserts is only for d2spr specific builds, that doesn't apply to d2lte builds (hence the reference to "pre-unified builds" in my first post). Your issue is most likely also related to APN's. However, there are also known data issues on a lot of the latest CM nightlies, and also on the ROM's that rely heavily on CM as a code source. I would strongly recommend reading the last several pages of the thread for any ROM that falls into this category in order to see what other users are reporting along these lines.

CM11 No Mobile Network
Hey guys,
Noob here. I'm running CM11-20140428-NIGHTLY-jflte on a Galaxy S4 GT-i9507(international, optus) but bootscreen now says 9505(not sure if that's important).
I've had Mobile Network State: Disconnected for the last three nightlies. On CM11 M3 it was working all good, but now no luck.
So I've tried a few things and I've come to the point where I'm going to try the factory reset then reflash CM11 and fingers crossed it will work.
Can anyone talk me through the proper procedure for this? I've made a full backup on my external SD using CWM 6.0.4.7 and transferred it to
computer just in case. So would anyone be awesome enough to take me through it step by step.
Cheers,

hhmmm
Use Rom Manager app and Fix Perrmisson
I install a bunch of roms on my dadz s3 and had 2 DirtyFlash it
And then used Wifi 2 get the app itselfz and it fix'd 88 permission
Idk jus tryn 2 help
Had sumthing 2 do w Gapps causing my issue

CM11 No Mobile Network
Ickyz said:
Use Rom Manager app and Fix Perrmisson
I install a bunch of roms on my dadz s3 and had 2 DirtyFlash it
And then used Wifi 2 get the app itselfz and it fix'd 88 permission
Idk jus tryn 2 help
Had sumthing 2 do w Gapps causing my issue
Click to expand...
Click to collapse
Just Fixed Permissions using Rom Manager, still no good.

Stock no APN settings at all
I have looked everywhere and found nothing for the last 3 weeks. I have a stock, sprint S3 on straight talk (my son's phone) it will not get 4g lte data what so ever. My phone is the exact same phone, and it does get 4g lte data. I tried all the basics ##72786# data on off check airplane mode...nothing. Mobile network state is "disconnected". So I opened data ##3282# to compare apn settings with my phone. I made sure everything matched, and when I get to "LTE APN Settings" I open it up, and nothing is there except APNs nothing, blank. Also missing is "Dial Up Networking" that option does not exist on my son's phone. He updated to kitkat (uggh) but the problem was present before that. Checked the phone, and it is not rooted. Funny thing is the phone updates with 4g lte running after dialing ##72786#, but that goes away after it completes. Texting works, but no mms (pictures etc.) and if I set it to cdma only it gets 3g, otherwise no data at all. Anybody?

[Q] Anyone have resolution to "No Mobile Data" issue on Galaxy S3 AT&T?

I've tried flashing different roms, modems, changing APN and mobile network settings, etc. Can't seem to get it to work. Everything else works just fine on 4.2.2, including cell and mms. Just no data.
Flashed (UPDATED):
cm-11-20140319-NIGHTLY-d2lte (4.4.2)
I747UCUEMJB bootloader
I747UCUEMJB modem
Other Info:
Kernel: 3.4.83-cyanogenmod-ge6f22a5 [email protected] #1
Provider: PTEL (PlatinumTel, a T-Mobile MVNO)
Mobile network type: HSDPA

geesedude said:
I've tried flashing different roms, modems, changing APN and mobile network settings, etc. Can't seem to get it to work. Everything else works just fine on 4.2.2, including cell and mms. Just no data.
Flashed:
cm-11-20140210-SNAPSHOT-M3-d2att.zip
boot_CWM_I747UCDMG2
d2att_I747UCUEMJB_modem
Click to expand...
Click to collapse
I recently had CyanogenMod 11 installed on my phone and I noticed phone calls, messages, and WiFi worked but when I turned my Mobile Data on, It did not work even though it showed it was on. If your issue has not been resolved, I suggest you check this out - http://forum.xda-developers.com/showthread.php?t=2540998.

who is the wireless provider?

mr_legolas said:
who is the wireless provider?
Click to expand...
Click to collapse
It's PlatinumTel (PTEL), which is a t-mobile mvno. I should note that i have the bootloader and the modem matched, have tried factory resets, and even downgraded to previous version (before updating bootloader to latest so i don't brick). Ptel tells me i need to update my APN, which basically was their standard msg... no help there. Thanks.

internethuman said:
I recently had CyanogenMod 11 installed on my phone and I noticed phone calls, messages, and WiFi worked but when I turned my Mobile Data on, It did not work even though it showed it was on. If your issue has not been resolved, I suggest you check this out - http://forum.xda-developers.com/showthread.php?t=2540998.
Click to expand...
Click to collapse
Hi, so... there are bunch of links and downloads on that page... i do have the latest bootloader and modem... can you tell me what you think i should [try to] update to make the mobile data work? BTW, at least on my phone, the mobile data icon doesn't even show. Not even 3G or whatever... thanks for your help.

RESOLVED!
Ugh. So after countless flashes, resets and wipes, turns out that PTEL needed to do a Data RESET on their end. So much misery for such a simple solution that they could have given me. If you're a PlatinumTel user, and this may apply to many other providers, please try telling them to reset their data service for you before trying anything else. Hopefully you won't go through the misery and time wasted that i have gone through.:cyclops:

geesedude said:
Ugh. So after countless flashes, resets and wipes, turns out that PTEL needed to do a Data RESET on their end. So much misery for such a simple solution that they could have given me. If you're a PlatinumTel user, and this may apply to many other providers, please try telling them to reset their data service for you before trying anything else. Hopefully you won't go through the misery and time wasted that i have gone through.:cyclops:
Click to expand...
Click to collapse
good for ya!

geesedude said:
Hi, so... there are bunch of links and downloads on that page... i do have the latest bootloader and modem... can you tell me what you think i should [try to] update to make the mobile data work? BTW, at least on my phone, the mobile data icon doesn't even show. Not even 3G or whatever... thanks for your help.
Click to expand...
Click to collapse
All of them are stock but I personally chose upndwn4par - Full - Features : Odexed, Rooted, Knox Removed because I really didn't know what the other ones did. (PLEASE NOTE : Neither the developer or I are responsible if you brick, or mess up your phone! This also deletes everything on your phone so do backup if you want to save your important files.) When it finished downloading, I put the file on my phone's internal storage (SD card works too) then went into recovery mode using TWRP and installed the rom onto my phone, then while I was still on TWRP, I deleted the cache and data, it then reboot and then I had to set up my phone as if I had just bought it.

PTEL fix for no data connection, broken, not working
geesedude said:
Ugh. So after countless flashes, resets and wipes, turns out that PTEL needed to do a Data RESET on their end. So much misery for such a simple solution that they could have given me. If you're a PlatinumTel user, and this may apply to many other providers, please try telling them to reset their data service for you before trying anything else. Hopefully you won't go through the misery and time wasted that i have gone through.:cyclops:
Click to expand...
Click to collapse
THIS NEEDS TO BE PROCLAIMED!
PTEL locked us out of voice once before, which also required a reset. That was also with a phone change so maybe a security measure? Never thought about it happening with data.
So many hours wasted.
On calling, the PTEL CSR first reset the data, then helped with a new APN. Note that even with the correct settings in an existing APN and the data connection freshly reset, the phone (SGN3) refused to connect, even after a reset. Added APNs had to be deleted, then a new one created, which then connected immediately. (Pissed and happy at once.)
Thanks, @geesedude, for this info; wished I'd found it sooner. (Have to stop assuming that if it doesn't work, must be something I'VE done.)

Glad that the information helped you. Yeah, i mean... since we mess around with our phones, we always first assume it's something we did, which really can't be blamed for thinking that way. Like you, i searched the web for a solution and it was out of desperation that i called ptel, and the CSR happened to suggest it (they were out of ideas, too), and it happened to be the solution. Not sure why they have to do this in the first place, but i am guessing that there are stricter guidelines from TMobile for the MVNOs, and they have to do some things manually. At least now i know to contact them first before spending hours searching for something that may not exist!

Sprint Note II on Straight Talk CM11

Ok I just flashed my phone to CyanogenModd 11 and now I've lost data. I've read a bit about updating the APNs but I'm not sure what all I need to put in. I flashed to CM11 to use the hotspot since on the stock rooted ROM I kept getting the Sprint Device Self Service screen asking to get a hotspot plan but nothing was available. All the apps (FoxFi, Wifi Tether For Root Users, etc.) never worked please help.
Edit: I DO have texting and calling

Sprint Note 2 on Straight Talk with CyanogenMod 11 NO DATA
Tristanguy28 said:
Ok I just flashed my phone to CyanogenModd 11 and now I've lost data. I've read a bit about updating the APNs but I'm not sure what all I need to put in. I flashed to CM11 to use the hotspot since on the stock rooted ROM I kept getting the Sprint Device Self Service screen asking to get a hotspot plan but nothing was available. All the apps (FoxFi, Wifi Tether For Root Users, etc.) never worked please help.
Edit: I DO have texting and calling
Click to expand...
Click to collapse
Before flash: 4Glte worked. After Flash NO data.
PLEASE HELP

Tristanguy28 said:
Before flash: 4Glte worked. After Flash NO data.
PLEASE HELP
Click to expand...
Click to collapse
Ok so I'm trying to manually edit APNs and every single time I try to save one with the "MNC" as 410 as I've read it should be it disappears from the APN list

Tristanguy28 said:
Ok so I'm trying to manually edit APNs and every single time I try to save one with the "MNC" as 410 as I've read it should be it disappears from the APN list
Click to expand...
Click to collapse
You need to edit your build.prop first. There are a couple of lines that have change. See attached pic.
Sent from my SPH-L900 using XDA Premium 4 mobile app