[Solved] Cyanogenmod cannot connect to data network on Bmobile (MVNO) - Atrix 4G Q&A, Help & Troubleshooting

I've brought a Atrix and tried to install a ROM from cyanogenmod. It's the CM10 for atrix made by epinter. It's not an official one, but most people said it's OK. Everything worked great.
However, it cannot connect to the data network, it keep showing "Connecting". I tried to ask the carrier, and they said that my cellphone was trying to connect to their network, but with a wrong username/password. I've checked the informations a lot of times.
I tried several versions of cyanogenmod, CM10 and CM10.1 and even a stable CM7, but none could connect.
Does anyone know how to fix it?
edit: I can do/get calls and messages. On a stock ROM it works fine.
ps.: My carrier is Japan Bmobile, which uses the NTT Docomo network. My phone says that my carrier is Docomo, but the APN is from Bmobile.

renatogoes said:
I've brought a Atrix and tried to install a ROM from cyanogenmod. It's the CM10 for atrix made by epinter. It's not an official one, but most people said it's OK. Everything worked great.
However, it cannot connect to the data network. I tried to ask the carrier, and they said that my cellphone was trying to connect to their network, but with a wrong username/password. I've checked the informations a lot of times.
I tried several versions of cyanogenmod, CM10 and CM10.1 and even a stable CM7, but none could connect.
Does anyone know how to fix it?
ps.: My carrier is Japan Bmobile, which uses the NTT Docomo network. My phone says that my carrier is Docomo, but the APN is from Bmobile.
Click to expand...
Click to collapse
Ok. So you can connect to the network (ie, you can make phone calls), but you can't connect to the internet?
you got 2 options: either create the apn manually (the settings must be all over the internet), or ask them to push it to your cellphone. My carrier can do this, and you don't need to configure anything else.

circum wrallbu
andresrivas said:
Ok. So you can connect to the network (ie, you can make phone calls), but you can't connect to the internet?
you got 2 options: either create the apn manually (the settings must be all over the internet), or ask them to push it to your cellphone. My carrier can do this, and you don't need to configure anything else.
Click to expand...
Click to collapse
Yes, I can make calls and send messages.
When they sent me the SIM card, they also send the APN information. I had to configure it manually.
Now, I'm using a stock ROM. After I inserted the APN manually, it connects. But it's a old version of Android (2.3.4), and since it sucks, I would like to try to use a newer version.

Must be something related to the carrier. Because I set the apn manually just to try, on cm10.1, and it connects fine.
Enviado desde mi MB860 usando Tapatalk 2

andresrivas said:
Must be something related to the carrier. Because I set the apn manually just to try, on cm10.1, and it connects fine.
Enviado desde mi MB860 usando Tapatalk 2
Click to expand...
Click to collapse
Is your carrier a MVNO?

renatogoes said:
Is your carrier a MVNO?
Click to expand...
Click to collapse
Good Point, Somehow I skipped that part of your answer. Nope, it's a full blown carrier

Thanks for your promptly help.
I saw somewhere that there's a problem with android and MVNOs. I don't know exactly why they are considered as a roaming network. I'll try to flash it again on weekend and test it using roaming options.
edit: Just try it again, and it failed. According to android I'm not in roaming as the other people on internet said they were when using a MVNO.

I just found how to fix it in other page.
It seems to be a problem with a lot of Motorola devices.
To fix it, you have to force the APN user and password.
In order to do that, you have to edit the file "/system/etc/ppp/peers/pppd-ril.options" (requires root)
...
user [email protected] → user [email protected]
password NotUsed → password bmobile
...
After that, it worked perfectly.

Related

[Q] Data not working after ROM installation.

Hello guys I think I have a problem. After installing this (CyanogenMod 7.2-cooper-KANG-RC0-Android 2.3.7) my phone's data capabilities like 3g is not working anymore.
I am using the baseband S5830DXKT5 (2.3.6) from SIngtel. However, after flashing (before I install cm 7.2) I tested the 3g and I connected to the internet and it was fine. But when I install this ROM, my data capabilities fail.
I have the proper internet settings that my network provided me.
I have a signal and Messaging works. I can also browse the internet through wifi.
Help?
trycan said:
Hello guys I think I have a problem. After installing this (CyanogenMod 7.2-cooper-KANG-RC0-Android 2.3.7) my phone's data capabilities like 3g is not working anymore.
I am using the baseband S5830DXKT5 (2.3.6) from SIngtel. However, after flashing (before I install cm 7.2) I tested the 3g and I connected to the internet and it was fine. But when I install this ROM, my data capabilities fail.
I have the proper internet settings that my network provided me.
I have a signal and Messaging works. I can also browse the internet through wifi.
Help?
Click to expand...
Click to collapse
Did you manually enter the APN settings and press the circle ?
No, the settings was already there. I tried to manually change it but the parameters are already the same as what people in my country suggested.
The circle is already toggled.
vertcam9 said:
im using CM7.2 as well but does not have issues.
Since CM 7.2 there is an additional settings included in the Wireless & networks
1.Mobile Networks > Network Preferences
> now there is an option to select WCDMA only, WCDMA Preferred etc.
> ensure you select WCDMA Preferred if you want 3G
> or WCDMA Only to forceit to always use 3G connection
Click to expand...
Click to collapse
Found this in the other tread.
I had tried it and it still doesnt work.
I also read the whole tread and to no avail, my data connection still does not work.
Ive tried using different baseband versions and different roms.
Whatever baseband I use, the 3g and data connection works. However, once I install any rom there is, Ive tried three (Kang, Ice Cream Sunday, CyanoAce), I just lose 3g and data connection.
can anyone help?
Now basically i also had the same problem... Intially wen i flashed CM version my DATA nor 3G working.. Later called up my svc provider they told to delete the OLD APN and he guided me thru the whole process of putting new APN.. Viola a restart my DATA came back May be u can try this once...
This was an issue for Telcel in Mexico when the upgrade to 2.3 came to Galaxy Ace, the fix was changing the Radio file (to a latin american one) but in this case is all zipped and i don't know if this can help actually.
Just a stab in the dark, try turning on data roaming... worked for me... with Grif's CM 7.1 with an unlocked Galaxy Ace not running it's native SIM. Worth a shot?
Maybe its your APN setting
If you're using globe, they have 3 or 2(not sure) different APN for postpaid and prepaid subscriber.
for postpaid I think its "internet.globe.com.ph"
for prepaid its "http.globe.com.ph"
mywhiteside said:
This was an issue for Telcel in Mexico when the upgrade to 2.3 came to Galaxy Ace, the fix was changing the Radio file (to a latin american one) but in this case is all zipped and i don't know if this can help actually.
Click to expand...
Click to collapse
Can you explain further? I think this maybe the issue because my unit was not bought here in our country. It was bought by my dad in another region.
ijustzeke said:
Maybe its your APN setting
If you're using globe, they have 3 or 2(not sure) different APN for postpaid and prepaid subscriber.
for postpaid I think its "internet.globe.com.ph"
for prepaid its "http.globe.com.ph"
Click to expand...
Click to collapse
wow this actually worked.
thanks a lot man!
---------
so for people the will encounter this kind of problem in the future, here is what apparently happened.
Globe (our Network Provider) sets the default APN to the postpaid instead of the prepaid one when you install new ROMS.
to think that this may be this simple. ive researched changing CSCs to flashing different basebands and roms.
case closed!
No problem. Glad I helped.

Connected to carrier but signal says Roaming, no APN settings, but have internet

OK guys the title explains my predicament. I live in Costa Rica and am currently with the I.C.E for any of you that may be from here. I purchased a used S2 from a guy that bought it from Claro. So the first thing I did was get rid of the stock and I flashed everything like I wanted which is:
CheckROM v6
Using DarkKnight's Kernel
I'm using the KI3 radio but I have about 20 others and none of them changes my situation (coming up)
Original info was:
PDA-KG7
Phone- KG4
CSC - KH2
NOW here's the deal, my network icon has full bars but with an R for roaming. The phone works fine, I somewhat have data connectivity although SLOW, BUT when I go to APN settings there is nothing there NOR will it let me save a new APN, BUT I do get the 3G and H icons depending on where I am, I just can't program in a new APN or get rid of the Roaming icon no matter what ROM I flash, kernel or radio combination...
I have tried automatically and manually selecting my networks also, no dice...
I have of course already gone to *#*#4696#*#* and changed settings and tried all the variants but currently have it on WCDMA preferred.
I have also gone to *#2263# and tried all those variants but left it on WCDMA All Channels.
So I am more than open for any suggestions.
Go to Sammobile.com & search for stock firmware for your country/carrier (or just your country if they don't have any carrier specific firmware for your region), flash this firmware via Odin following whatever instructions Sammobile have for firmware downloaded from their site.
Once you've done that, check your APN setting & see if you have full connectivity. If for whatever reason your APN settings are blank (if you only end up downloading/flashing a country specific firmware only, for example), call your carrier for the APN settings and then enter these manually.
First thing you do when you have these problems is go back to stock & see if you can reproduce the problem or whether going back to stock fixes same
MistahBungle said:
Go to Sammobile.com & search for stock firmware for your country/carrier (or just your country if they don't have any carrier specific firmware for your region), flash this firmware via Odin following whatever instructions Sammobile have for firmware downloaded from their site.
Once you've done that, check your APN setting & see if you have full connectivity. If for whatever reason your APN settings are blank (if you only end up downloading/flashing a country specific firmware only, for example), call your carrier for the APN settings and then enter these manually.
First thing you do when you have these problems is go back to stock & see if you can reproduce the problem or whether going back to stock fixes same
Click to expand...
Click to collapse
Thanks alot for your response MistahBungle.
Well on stock firmware is where I originally have the problem, that's the reason I began flashing ROMs and radios. IF I use a SIM from the original carrier which is Claro then all is well. BUT if I use a SIM from one of the other two carriers then the phone signal says roaming and I can't save any APN settings, no matter if I'm on stock firmware or any of the other ROMs or radio combinations that I have tried.
OK. Looks like we'll have to dig a bit deeper
So do you have baseband & IMEI in settings/about phone ? That issue of not being able to save APN settings with those other carriers sounds to me like a SIM or network issue. My first thought was it's a problem with the baseband, hence I suggested to flash a stock rom. But if that was the issue, you probably wouldn't be able to enter APN details for any sim/carrier.
Actually, now that I think about it. You know what it sounds like ? That the phone is network locked to your original carrier. That would explain everything.
If your phone *should* be locked (like you're on a contract where you only 'own' the phone at the end of the contract, etc), then I guess you can either pay the original carrier to unlock it. Or you can try one of the many unlock methods you can read about on here/apps you can get on the Market. Or if it shouldn't be locked yet it is, maybe ask the original carrier to unlock it.
You could also try flashing a specific rom for one of the other carriers, but I'm pretty sure that phone is network locked.
cdzo72 said:
Thanks alot for your response MistahBungle.
Well on stock firmware is where I originally have the problem, that's the reason I began flashing ROMs and radios. IF I use a SIM from the original carrier which is Claro then all is well. BUT if I use a SIM from one of the other two carriers then the phone signal says roaming and I can't save any APN settings, no matter if I'm on stock firmware or any of the other ROMs or radio combinations that I have tried.
Click to expand...
Click to collapse
MistahBungle said:
OK. Looks like we'll have to dig a bit deeper
So do you have baseband & IMEI in settings/about phone ? That issue of not being able to save APN settings with those other carriers sounds to me like a SIM or network issue. My first thought was it's a problem with the baseband, hence I suggested to flash a stock rom. But if that was the issue, you probably wouldn't be able to enter APN details for any sim/carrier.
Actually, now that I think about it. You know what it sounds like ? That the phone is network locked to your original carrier. That would explain everything.
If your phone *should* be locked (like you're on a contract where you only 'own' the phone at the end of the contract, etc), then I guess you can either pay the original carrier to unlock it. Or you can try one of the many unlock methods you can read about on here/apps you can get on the Market. Or if it shouldn't be locked yet it is, maybe ask the original carrier to unlock it.
You could also try flashing a specific rom for one of the other carriers, but I'm pretty sure that phone is network locked.
Click to expand...
Click to collapse
Ok just to clarify... all that makes sense, but what is ODD to me is that I don't think the phone is locked... I have full phone capabilities. I can make and answer calls, send texts, I even have full internet capability (even if I can't save any APN settings and there are none to be seen in the menu to choose from), I have the full speed of what I'm paying for from my carrier... the phone just won't let me SEE what APN settings it's using and in the signal it says R for roaming, but in networks it shows that it's connected to MY network...
Yes my IMEI does come up, BUT when I try one of those unlock apps I always get the message that it was unable to unlock it, but it's working with my carrier.
Ahhhh. OK. Yep that's a bit clearer now
OK. So we're pretty sure it isn't locked. That is really weird that it won't let you enter APN settings (regardless of which rom you're using), but you still have internet connectivity. Again, showing your network as the network connected to, yet showing up as roaming on the taskbar, is weird.
I've gotta say I"m pretty much stumped then. Haven't read a similar situation on here in the 4 mths I've been following the Q&A section of the board pretty much every day. Sorry I can't be of more help
Hopefully someone better qualified that me reads your post & can help. If you don't get a reply in a day or two, give it a bump.
cdzo72 said:
Ok just to clarify... all that makes sense, but what is ODD to me is that I don't think the phone is locked... I have full phone capabilities. I can make and answer calls, send texts, I even have full internet capability (even if I can't save any APN settings and there are none to be seen in the menu to choose from), I have the full speed of what I'm paying for from my carrier... the phone just won't let me SEE what APN settings it's using and in the signal it says R for roaming, but in networks it shows that it's connected to MY network...
Yes my IMEI does come up, BUT when I try one of those unlock apps I always get the message that it was unable to unlock it, but it's working with my carrier.
Click to expand...
Click to collapse
MistahBungle said:
Ahhhh. OK. Yep that's a bit clearer now
OK. So we're pretty sure it isn't locked. That is really weird that it won't let you enter APN settings (regardless of which rom you're using), but you still have internet connectivity. Again, showing your network as the network connected to, yet showing up as roaming on the taskbar, is weird.
I've gotta say I"m pretty much stumped then. Haven't read a similar situation on here in the 4 mths I've been following the Q&A section of the board pretty much every day. Sorry I can't be of more help
Hopefully someone better qualified that me reads your post & can help. If you don't get a reply in a day or two, give it a bump.
Click to expand...
Click to collapse
Hey don't apologize, as you see no one else has ventured to give me a response either and I'm completely stumped myself. I looked for 5 days for an answer before I started a new thread because no one will go off on a noob for not searching quicker than I will, but I just haven't seen anyone with a similar situation on any forum anywhere...
THANKS AGAIN!!
Now to the rest of you devs, come on help a fella out and tell me what files I need to be looking for or modifying
Ok MistahBungles I got an update for ya... I decided to download a different firmware package (the PDA and Phone match mine but not the CSC), it's for Claro Argentina, BUT the ROM isn't branded when I booted it (the ROM the phone came had a CLARO boot logo (another reason I started looking for a different ROM)) and THIS ROM automatically has my APN settings in the menu without me doing a thing and the R in the signal is gone....
So now my question is how do I go about flashing the ROM I wanna use which is CheckROM but not lose my new found freedom (I ask because I'm not sure if this is a simple radio issue)
cdzo72 said:
Thanks alot for your response MistahBungle.
Well on stock firmware is where I originally have the problem, that's the reason I began flashing ROMs and radios. IF I use a SIM from the original carrier which is Claro then all is well. BUT if I use a SIM from one of the other two carriers then the phone signal says roaming and I can't save any APN settings, no matter if I'm on stock firmware or any of the other ROMs or radio combinations that I have tried.
Click to expand...
Click to collapse
The Phone maybe Network Locked.(Not sim locked) As taken from gsmlocker.com:
Q. What sorts of locks are there?
A.
- lock phone to SIM
- lock phone to OPERATOR (network lock)
- lock phone to CODE (product lock = offer lock)
If your phone is locked to the sim you cannot use any other sim than the one you have: SIM broken makes phone useless.
If your phone is locked to an operator, you can use any SIM from this operator in your phone. You can switch between contract and prepaid as you wish, but not to a different operator.
If your phone is locked to a code, the phone checks a special "password" (GID) on the SIM that must match your phone. Providers often use different passwords for contract and prepaid.
FlowerPotmen said:
The Phone maybe Network Locked.(Not sim locked) As taken from gsmlocker.com:
Q. What sorts of locks are there?
A.
- lock phone to SIM
- lock phone to OPERATOR (network lock)
- lock phone to CODE (product lock = offer lock)
If your phone is locked to the sim you cannot use any other sim than the one you have: SIM broken makes phone useless.
If your phone is locked to an operator, you can use any SIM from this operator in your phone. You can switch between contract and prepaid as you wish, but not to a different operator.
If your phone is locked to a code, the phone checks a special "password" (GID) on the SIM that must match your phone. Providers often use different passwords for contract and prepaid.
Click to expand...
Click to collapse
OK I get your point BUT the phone if fully functional, I'm using a SIM from a different carrier, I have a data connection, make and receive calls, the whole nine yards, it just won't let me see what APN setting it's using and the R symbol is in the signal... once again, IT IS allowing the use of a different SIM from another carrier
Yes its the same as me! I have the R showing as well.(if you put the Claro sim in the R will disappear yes?)
FlowerPotmen said:
Yes its the same as me! I have the R showing as well.(if you put the Claro sim in the R will disappear yes?)
Click to expand...
Click to collapse
Yes when I use a CLARO SIM the R disappears....
BREAKTHROUGH... I think that I have found the culprit... since I live in Costa Rica I use Market Enabler... apparently whatever it changes is causing the problem, which is weird because I have 3 other android devices, I use the same app on all of them and don't have this issue... NOW I'm really scratching my head... guess I need to contact the dev?
Ahhh. So Market Enabler is changing the CSC which is causing the network settings to disappear/barf.
Nice work finding the source of the problem Yeah tell the dev. Hopefully they can find some sort of fix/workaround so you can still use Market Enabler.
cdzo72 said:
Yes when I use a CLARO SIM the R disappears....
BREAKTHROUGH... I think that I have found the culprit... since I live in Costa Rica I use Market Enabler... apparently whatever it changes is causing the problem, which is weird because I have 3 other android devices, I use the same app on all of them and don't have this issue... NOW I'm really scratching my head... guess I need to contact the dev?
Click to expand...
Click to collapse
MistahBungle said:
Ahhh. So Market Enabler is changing the CSC which is causing the network settings to disappear/barf.
Nice work finding the source of the problem Yeah tell the dev. Hopefully they can find some sort of fix/workaround so you can still use Market Enabler.
Click to expand...
Click to collapse
Well I just through and installed and tried ALL the market unlocking apps and they all apparently do the same thing and causing the same result, my phone thinks it's roaming, so now the head scratcher is why my other Android devices don't behave in the same way? This is my only Samsung. The others are Dell Streaks.
cdzo72 said:
Well I just through and installed and tried ALL the market unlocking apps and they all apparently do the same thing and causing the same result, my phone thinks it's roaming, so now the head scratcher is why my other Android devices don't behave in the same way? This is my only Samsung. The others are Dell Streaks.
Click to expand...
Click to collapse
Sorry to bump this up, but I'm having the exact same problem. I was wondering if you ever figured out how to fix it.
I have a HTC Sensation and it happened to me right after I upgraded my custom kernel version to a newer one.
I never installed Market Enabler nor Market Access but when I check the SIM info it shows incorrect MNC and MCC values which
I can't change... they won't save in the system options.
I thought maybe my SIM card is screwed up, so I'm thinking of getting a new one from my service provider.
I just have to check it on a different phone first.
Pierrot Lunaire said:
Sorry to bump this up, but I'm having the exact same problem. I was wondering if you ever figured out how to fix it.
I have a HTC Sensation and it happened to me right after I upgraded my custom kernel version to a newer one.
I never installed Market Enabler nor Market Access but when I check the SIM info it shows incorrect MNC and MCC values which
I can't change... they won't save in the system options.
I thought maybe my SIM card is screwed up, so I'm thinking of getting a new one from my service provider.
I just have to check it on a different phone first.
Click to expand...
Click to collapse
Ok, forget it. My SIM card was having issues, got a new one from my carrier. Everything is working fine now.

HELP! APN On Dev Edition

Ok, I suddenly have lost LTE data and cannot make phone calls.
I have pulled the sim card and reinserted but I keep getting a popup window asking me if I want to connect to Global and not CDMA/LTE. I change the request to LTE and make sure setting is there.
It won't connect to 4G. and keeps asking about Global.
I am rooted and ROM'd with unlocked bootloader and have even tried my trusty stock image -- no go!
All of my ROM backups have the same issue and I can't place a call.
:crying:
Yes, my bill is paid and in order.
What can I do? I doubt VZW will help me since it is a Dev Edition and I purchased through Samsung, not them.
APN settings seem to be blacked out so I cant change. It does allow me to delete it.
HELP! I need to place calls.
markwebb said:
Ok, I suddenly have lost LTE data and cannot make phone calls.
I have pulled the sim card and reinserted but I keep getting a popup window asking me if I want to connect to Global and not CDMA/LTE. I change the request to LTE and make sure setting is there.
It won't connect to 4G. and keeps asking about Global.
I am rooted and ROM'd with unlocked bootloader and have even tried my trusty stock image -- no go!
All of my ROM backups have the same issue and I can't place a call.
:crying:
Yes, my bill is paid and in order.
What can I do? I doubt VZW will help me since it is a Dev Edition and I purchased through Samsung, not them.
APN settings seem to be blacked out so I cant change. It does allow me to delete it.
HELP! I need to place calls.
Click to expand...
Click to collapse
If it persists across different roms it sounds like either faulty sim or for some reason your modem or kernel is corrupted. I would re flash modem. After that try to re flash kernel. If that fails a new sim might be in order. I presume you have checked with another phone to be sure it's not a VZW problem.
Sent from my SCH-I545 using Tapatalk
I
wtherrell said:
If it persists across different roms it sounds like either faulty sim or for some reason your modem or kernel is corrupted. I would re flash modem. After that try to re flash kernel. If that fails a new sim might be in order. I presume you have checked with another phone to be sure it's not a VZW problem.
Sent from my SCH-I545 using Tapatalk
Click to expand...
Click to collapse
Thanks! I will try the modem route first and then the kernel route.
Although each ROM has a different kernel, so I don't think that is the issue.
Yes, no problem with VZW as the other half's phone is working.
Data works on LTE for Internet but can't place any calls and all received calls do not ring phone: goes into VM.
Edit: at Verizon and not SIM card. New SIM card gives me voice but no data. Says voice roaming.
Ok, here is the problem after 2 new sim cards: Data is showing as "CDMA RX1TT" I cannot get data or voice now. Says voice is roaming with a triangle.
Is this a software setting or hardware setting? Something has changed on my phone, despite changing from stock to ROMS, etc.
VZW store is at a loss and though the rep was good, suggested I call top tier VZW support tomorrow and made notes in my account.
So, any clues as to what could cause this? Is my Dev phone now shot?
If it truly is an APN issue i can post my APN from my Verizon SGS4 and you can use an app called APN backup and restore to push it to your phone or push it manually using root explore and then set permissions. Let me know.
Sent from my SCH-I545 using xda app-developers app
You might have a corrupted EFS partition in which case you would need to restore a good copy of that. Some of the time its in LTE/GSM mode for whatever reason in which case you would need to change it to LTE/CDMA mode.
my 2 cents
Sent from my Transformer TF101 using Tapatalk
I had a "DUH" moment when I was in a similar situation. I had forgotten that I had enabled the hidden menu on my DevS4 and changed the "band" preferences to try and force the AWS band. This took the phone off of "automatic band connecting" and I was unable to connect to data. Once I remembered what I had done, I simply when back into the menu and switched from forcing AWS band back to "automatic". Just my 2 cents.
Skeetch79 said:
I had a "DUH" moment when I was in a similar situation. I had forgotten that I had enabled the hidden menu on my DevS4 and changed the "band" preferences to try and force the AWS band. This took the phone off of "automatic band connecting" and I was unable to connect to data. Once I remembered what I had done, I simply when back into the menu and switched from forcing AWS band back to "automatic". Just my 2 cents.
Click to expand...
Click to collapse
Hello Everyone! Sorry for the delay. Actually, this is what kinda occurred, as the 1/15 build of OctOs ROM which I flashed had an issue and it was posted on Facebook, which I didn't see until Saturday. It changed the CDMA subscription to NV and so even with stock or other ROM backup images, it carried over and didn't re-adjust. I had to reinstall that bad ROM, make some changes per OctOs instructions and BAM: all is well.
As you know on stock rooted, one cannot change certain settings and they were greyed out.
At least I got another backup sim card from VZW should I ever need to activate an older phone.
Thanks for everyone's help!

[Q] Unable to use mobile data with my SGS3 (Need APN Config)

A week or two ago I updated to the latest version of the Resurrection Remix Rom. It seems this wiped my APN settings as I needed to use my mobile data today only to find that nothing was happening (no icons appearing in the status bar). The thing is, the link on the T-Mobile website that sends the text with APN settings to your phone doesn't work. I have tried manually setting the APN settings using different sources, but none of them work. To double check, I restarted my phone after each change, but still, nothing.
I am based in the UK and I'm on T-Mobile. Does anyone have a working APN config for T-Mobile that I can use?
Thanks in advance!
ExperimentalHDX said:
A week or two ago I updated to the latest version of the Resurrection Remix Rom. It seems this wiped my APN settings as I needed to use my mobile data today only to find that nothing was happening (no icons appearing in the status bar). The thing is, the link on the T-Mobile website that sends the text with APN settings to your phone doesn't work. I have tried manually setting the APN settings using different sources, but none of them work. To double check, I restarted my phone after each change, but still, nothing.
I am based in the UK and I'm on T-Mobile. Does anyone have a working APN config for T-Mobile that I can use?
Thanks in advance!
Click to expand...
Click to collapse
You can call T-Mobile and request APN for your device. In most countries, the carrier can also send a config sms that sets up the APN.
Also please make sure that Mobile Data is set to ON. It is overlooked in so many cases.
PS: Was your phone carrier-locked?
Name: everywhere
APN: everywhere
Leave everything else blank.
I'd guess you have other problems than just APN settings, try a full wipe and flash again.
Sent from my GT-I9300 using Tapatalk
RazorMC said:
You can call T-Mobile and request APN for your device. In most countries, the carrier can also send a config sms that sets up the APN.
Also please make sure that Mobile Data is set to ON. It is overlooked in so many cases.
PS: Was your phone carrier-locked?
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boomboomer said:
Name: everywhere
APN: everywhere
Leave everything else blank.
I'd guess you have other problems than just APN settings, try a full wipe and flash again.
Sent from my GT-I9300 using Tapatalk
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boomer, that worked instantly, as for the full wipe & reflash... That'll have to wait.
@RazorMC, heheh it was on don't worry. And nope, unlocked.

Unable to connect to my mobile network

I recently purchased a refurbished phone Samsung Galaxy S21 5G. I just got it yesterday, and found that I am not able to use my mobile network. The sale said it is factory unlocked, and according to the descriptions, it should work just fine with my US Mobile SuperLTE network as well. When I switched on the phone, I see Verizon on the screen and so, I assume that it was locked to Verizon in the past.
When I tried to change the network settings, specifically the APN settings, I get the message "Access Point Name settings are not available for this user." The three dots on the top with reset to default is also greyed out along with Network mode in the previous page. When I click Network Operators and try to connect to the network manually, I am only able to connect to Verizon Wireless and no other. But, calling and messaging seems to work fine. Is it that the unlock process has not been completed properly? Did any of you face the same problem before? It would be great if there is something that I could do to unblock the APN settings as the rest of the phone works really well. The specific model is SM-G991U.
Thanks!
Aisp said:
I recently purchased a refurbished phone Samsung Galaxy S21 5G. I just got it yesterday, and found that I am not able to use my mobile network. The sale said it is factory unlocked, and according to the descriptions, it should work just fine with my US Mobile SuperLTE network as well. When I switched on the phone, I see Verizon on the screen and so, I assume that it was locked to Verizon in the past.
When I tried to change the network settings, specifically the APN settings, I get the message "Access Point Name settings are not available for this user." The three dots on the top with reset to default is also greyed out along with Network mode in the previous page. When I click Network Operators and try to connect to the network manually, I am only able to connect to Verizon Wireless and no other. But, calling and messaging seems to work fine. Is it that the unlock process has not been completed properly? Did any of you face the same problem before? It would be great if there is something that I could do to unblock the APN settings as the rest of the phone works really well. The specific model is SM-G991U.
Thanks!
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Click to collapse
So, you need to go into the settings menu and find about phone, software info. What you want to find is the CSC information.
It will basically look something like this: XAA / XAA-XAA / XAA (or some other letters like VZW or ATT or TMB etc etc.
What taht will tell you is very helpful in determining what rom the phone is running and what kind of device it was originally. Find that in your device and post it and people will help you to figure out what it means.
AsItLies said:
So, you need to go into the settings menu and find about phone, software info. What you want to find is the CSC information.
It will basically look something like this: XAA / XAA-XAA / XAA (or some other letters like VZW or ATT or TMB etc etc.
What taht will tell you is very helpful in determining what rom the phone is running and what kind of device it was originally. Find that in your device and post it and people will help you to figure out what it means.
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Thank you so much for your reply. I looked through the software section in the about section. I found the following codes about the rom.
Aisp said:
Thank you so much for your reply. I looked through the software section in the about section. I found the following codes about the rom.
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So the csc info is complicated, I'm no expert on it. But it does look like the OYN indicates it's a multi csc rom. It does have XAA as a part of the code, and that indicates it's 'open' for that specific part. But all the others are VZW. So it's running a vzw rom, obviously.
Your sim US Mobile uses both verizon and t-mobile networks. So it working for calls and texts makes sense, as a vzw phone. You could use patched Odin and flash a different (open) rom, but first you should verify that the device really is unlocked from vzw.
Best way to do that would probably be to insert another carriers sim card and see if it can make calls / texts. If not, it's not unlocked. But are you saying everything works now except mobile data? IOW, no internet access?
I had an international sim card at hand and I put it in. Interestingly the APN settings are no longer blocked. But, I do get a notification from setup wizard saying the inserted sim is not from Verizon and some services may not be available. But, messaging still seemed to work and I was also receiving 4G.
Aisp said:
I had an international sim card at hand and I put it in. Interestingly the APN settings are no longer blocked. But, I do get a notification from setup wizard saying the inserted sim is not from Verizon and some services may not be available. But, messaging still seemed to work and I was also receiving 4G.
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Oh then yer okay. That message from verizon can be gotten rid of a couple of ways; 1) use adb commands to disable the specific packages 2) use patched Odin and flash a different rom
VZW is the only rom I think that does that, and it's very annoying. I don't remember exactly which packages have to be disabled, but search google and use xda and vzw in keywords and u should find it.
The 2nd option would be my choice. It would do away with vzw crap and with an open rom you may find volte and vowifi will work also.
cheers
Thank you so much for your reply. That sounds great! To just give it a try, I tried putting in a TMobile sim and phone restarted to install software for TMobile. After that the APN settings were unlocked and now I am also able to connect to the internet using my US Moblile sim. The only problem is the the network mode is greyed out.
This rom I think only recognizes network from major telecom providers. So, just flashing with an unlocked rom would just help to unlock all the features and also remove telecom specific crap. I will try to flash it today.
Thank you again!
I also just flashed the stock firmware which is fully unlocked. And there is no bloatware from telecom OEM's. I am now able to use the network and set the APN's, but the Network Mode is still greyed out. Is it possible to know why? I am guessing that if the phone is fully unlocked, I should be able to change the Network Mode. Is there any other info that I can give you to help understand what is happening? I do not see vowifi as well.

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