Database Develop

Why im Roaming with AT&T phone + BELL / TELUS SIM

Hi,
I would like to be able to modify my AT&T radio and change the default Mobile Network Code for my carier, is there any software to make easy to modify the ROM file ?
Thank

I'm not quite sure I understand what you're asking, but a radio will work on various different networks, depending on which SIM card you have in the phone. So I'm not sure that it's in the radio that you need to look.
What is it that you're trying to achive exactly, why do you want to change this code ?

Well, here is my problem;
I bought a Tilt 2 on ebay, and I also get an Unlock code for it. I have inserted my Bell SIM and the phone work correctly. I have configured the APN setting correctly and now I have internet without any problem.
The only bad thing is that the phone always think i'm in roaming, but that's not true. I have to deactivate all setting about roaming check, it's not a big thing but If I got to USA I will be charged for real roaming. and another downside is that many application pup info about roaming and data charge.
I'm searching since couple days to found a solution, and I'm pretty there is one but I have not enough knowledge on programming stuff. I've look all every registry in my phone and no one can't correct this ''roaming'' situation.
That's why im turning to Radio, since this phone is an AT&T, it's propbably seaching to compare SIM network provided and ROM network. I've found an interesting site about MMC/MNC http://en.wikipedia.org/wiki/Mobile_Network_Code
and found that the default network for AT&T is 310-410. Here in Canada We have bell and telus that use same technology then AT&T (UMTS 850 / UMTS 1900).
I would like to change the default ''home'' network code to 302-880. because my Sim Provided IMSI is 302-610 (Bell).
So to make it short. I want to change the default ''HOME'' network 310-410 to 302-880 so the phone will not be in a roaming profile.
Hope that someone can help me, and I'm pretty sure many people will appreciate this fix.
Thank You.

I don't know much about this, but surely it's your SIM card that is providing this code ? Since I could buy an unlocked Tilt 2 and put my own SIM card in it, and use it fine here in the UK on a UK network.
I can't believe that your phone thinks it's roaming just because it's a Tilt 2.

Yes, I found in my registry ProvidedIMSI="302610" that is the SIM registred network 302610 Bell HSPA network. So my SIM is telling the phone to use this network, but there is something in the phone that say it's roaming and not a home network. and I need to find and change this.
I'm not the only one in this situation and i would like to find a fix.

i have no knowledge about this only thing i can think of at the moment is just change the current radio version and flash a new rom. the latest version for radio is
4.49.25.95
and is found here ------> http://forum.xda-developers.com/showthread.php?t=549939
follow the right steps. [:d]
best of luck

Yes, I've updated the Radio to the latest version and still have the problem of ROAMING. i've try 2 old radio and always got the roaming icon.
Any other input will be accepted!!
Thanks

BiOs2k said:
Yes, I've updated the Radio to the latest version and still have the problem of ROAMING. i've try 2 old radio and always got the roaming icon.
Any other input will be accepted!!
Thanks
Click to expand...
Click to collapse
I read somewhere that roaming starts when you are out of your area code range.
But you can try this too
go to ------> setting ---> personal ------> phone -------> Network (in the bottom tabs)
In the network tab click Find Network and make sure it is the same network you are using.
Network selection should be "Automatic".
Now in next tab BAND
select network type to "GSM" and GSM/UMTS band to "Auto".
Try this and let me know if this work else i will ask somebody knowledgeable like Sir Phunkee

the show stopper said:
I read somewhere that roaming starts when you are out of your area code range.
But you can try this too
go to ------> setting ---> personal ------> phone -------> Network (in the bottom tabs)
In the network tab click Find Network and make sure it is the same network you are using.
Network selection should be "Automatic".
Now in next tab BAND
select network type to "GSM" and GSM/UMTS band to "Auto".
Try this and let me know if this work else i will ask somebody knowledgeable like Sir Phunkee
Click to expand...
Click to collapse
I've play with these setting and nothing seem to work.
But maybe I found something interesting.
I've just test the phone with a ROGERS SIM card and I get 3G signal and i'm NOT in roaming mode..
Now, What that mean ? Rogers 3G is UMTS/HSPA 850/1900MHz same as BELL.
Why it say Roaming when phone is connected to BELL with BELL Sim and not on ROGERS SIM??
Could someone help me with that ? fix, cab, anything ?
Thanks

rooming
Hi
I do not know think you want to do with your tilt 2
Why you don't do a hard SPL and install a cocked rom !! as energy
I am using a tilt purchased from AT&T without contract
I get a unlock cod from the internet then I do a hard SPL it and install the energy rom in, is work like a charm with Rogers, without any problem( only the gps wish I never try
Perhaps this is can resolve your problem you should try
thanks

Already done Cjoco My Tilt 2 is Unlocked and Hard-SPL with latest EnergyROM.
Like I said before, SIM ROGERS work like a charm in my phone, No roaming warning. but with BELL and TELUS SIM I get the Roaming notif but it's not true, Im connected to BELL and VOICE,DATA,etc. work #1.
People say that it work with ROGERS because this carrier have a fallback signal if 3G is not available, with BELL if I lose 3G signal my phone doesn't work.

BiOs2k said:
I've play with these setting and nothing seem to work.
But maybe I found something interesting.
I've just test the phone with a ROGERS SIM card and I get 3G signal and i'm NOT in roaming mode..
Now, What that mean ? Rogers 3G is UMTS/HSPA 850/1900MHz same as BELL.
Why it say Roaming when phone is connected to BELL with BELL Sim and not on ROGERS SIM??
Could someone help me with that ? fix, cab, anything ?
Thanks
Click to expand...
Click to collapse
then i think problem is with your sim card not with your phone. Just get your sim card replaced and i am sure the problem would be resolved.

the problem may be with his sim card, but im not sure replacing it will fix anythibng. im also with bell and have the same problem on my fuze.
bios2k, how old is your sim card?

bobzero My SIM card is 2 Week Old. so, i'm not sure it because my SIM is old.
I'll give a call at tech support @ BELL to see if they know why it doing this. I'm not sure if they will be enough good to explain this situation.
I've read last night on many forums the RILPHONE.DLL could be a possible cause of our problem.
In my config I can select GSM(850,1700) + UMTS(850,1700) but there is no option to select UMTS only. so maybe the phone is searching for GSM first (rogers) that's why when I insert a ROGERS SIM my phone is not roaming.
Is there a way I can extract RILPHONE.DLL for our EnergyROM or Stock Tilt 2 rom. Maybe I can ask a Programmer to take a look at this DLL to see the code.
I'll let you know.

I've just talk with BELL technical support and they have no idea why I'm the phone say it's in ROAMING. I've talk to the billing department and they say I don't have any ROAMING fees, so nothing to worry about..
Now, I'm still at the same state = no solution

Same here.
I was checking around and found many got this problem, including BBs. Now, some claimed that after upgrading the O/S for his BB, it went away. Another person with different device upgraded his O/S and started having that problem, and it wasn't there with stock ROM.
Make me think it has to do with the software side of thing and nothing to do with SIM or radios. To pinpoint what is causing it, can be a tough task though.

scooper True, Hard task for people that don't know much about programming ROM and files, but maybe we can have help from other that wanna look at our problem.
I'm available to test if someone want to Help us .

BiOs2k said:
scooper True, Hard task for people that don't know much about programming ROM and files, but maybe we can have help from other that wanna look at our problem.
I'm available to test if someone want to Help us .
Click to expand...
Click to collapse
You should try to change the radio and rom of your phone. Make sure to Task 29 b4 flashing. Another thing to make sure is you use the right radio, i mean the specific radio for telus, t-mobile or att.....
Wrong radio can also cause such problems.

I have the same issue with my Unlocked Tilt2 on Telus. I found a lot of people with unlocked winmo devices on bell/telus complaining of this problem and never have seen a solution. People say that a Fido sim will do the same thing. Only Rogers sims seem to not show roaming. PLEASE post if you find the solution or even cause of this.

I just did task29 and reflash ROM. I soon as I have the main menu Roaming Icon appear on top just beside or 3G.
Damn!! still stock with this roaming issue
anyone have Q's ?

[Q] 850mhz band broken on my phone? (''Unable to connect. Try later'' got me crazy):

Hello guys! I've been reading these forums for a long time, amazing what you guys do in here
Here is my problem: I live in México, and I traveled to USA for summer vacation, my mexican mobile phone carrier uses 850mhz (TELCEL) and when I went to USA it was using ATT's network.
So everything was working fine, but when I returned just before I was about to cross the border, it stoped working!
It has a message that says ''Emergency calls only'' where it's supposed to say ''TELCEL GSM'', so no internet, no calls, no messages.
I was using Froyo on my phone, and thought of doing a reset to restore factory settings on the phone, but it did not work :/
Then I updated my phone to Darky's Rom 10.2 (Gingerbread) and it's still not working!
When I go to Settings>Wireless and network>Mobile networks>Network operators I can see that my carrier is available to select, but when I try to, it gives me a ''Unable to connect. Try later'' msg.
It is really frustrating because I depend on my phone so much, mainly because I share my 3G connection to my laptop for school's work and stuff.
There's one weird thing though, I unlocked my phone, and placed a MOVISTAR(1900mhz) SIM card on it, AND IT WORKS!!!
But the thing is that I don't have internet on that SIM card(is prepaid and it's EDGE, not 3G), and on my TELCEL SIM card I have a contract to complete (still a year to go).
When I put my SIM card on someone else's phone, it works like a charm, but if I try to put a TELCEL (850mhz) SIM on my galaxy; just says ''Only emergency calls''
What do you guys think happened to my phone? I would really appreciate your help.

flash a new modem... one that contains more frequencies enabled.. any bell or telus will do.
UGKC1 modem should fix your problem.

It did not work, should I keep trying with other modems?

you can.. jk4 or jl2 are other modems with 850 and 1900 enabled... maybe your problem is different then I thought... but it sounds like your modem... maybe try unlocking your phone? if you can connect to wifi download sgs unlocker pro (paid app) in the market to unlock, your phone also needs to be rooted. are you using the i9000T? that may be different problem altogether...
edit: sorry I see you said it is unlocked... just doesn't sound like it...
a) modem related (ugkc1) should have fixed that
b) SIM carrier not compatible to phone (unlock phone to fix)
c) Busted SIM card, check in other phone
d) make sure phone option is set to Automatic CDMA/GSM
sounds like you checked everything I would check....
does your 3G work... make sure your VPN is setup to your carrier

maybe imei got blocked...? only way around that is to get provider/samsung to unblock

Hey have you solved this, I have the same problem

my solution
http://forum.xda-developers.com/showpost.php?p=25509654&postcount=279

[Q] no 4g or lte on stock or custom rom

So I've had this phone for almost a week now and I used to he able to get 4g LTE. But ever since I rooted it, I no longer get more than 3g. I now have bananacakes Holiraider 1.6 but I still don't get any higher than 3g. So my question is how do I get 4g and 4g lte. Oh and if anyone is using that custom Rom, is it possible to get faster than 1512? In his thread it shows you can clock it to 1566. Thanks a bunch I'm kinda new to this!

try dialing *#*#4636#*#* and see what your modem is set to, it should be GSM/WCDMA/LTE auto
you also may have an APN issue, verifiy that your APN is correct, perhaps contact your carrier for the correct APN settings for you phone and plan.

Well I'm now running a custom ROM. The apn is the same as other users and it does say the above. And yes I am in a 4G LTE area
Sent from my HTC Raider X710e using XDA App

Try doing the above and change to LTE only.
Then once you have 4G change it back. It should stay on 4G. I had to do this to get 4G on official rom.

Ok I just tried that but it wouldn't let me to switch it to LTE only. When I did, it switched it back to GSM/WCDMA/LTE auto. I'm just gonna relock my phone and set it back to the original stock rom and format my phone (yes I have the apps and stuff backed up). Because my actual mobile connection fluctuates on and off as well

the phone should be locked into the GSM/WCDMA/LTE setting. If you try to change it from that setting it just returns back. The phone will get instructions from the carrier's base station to tell it whether to be on LTE or just 4G/3G. Using *#*#4636#*#* under phone information, what is listed as the Network type?
bangorang said:
Ok I just tried that but it wouldn't let me to switch it to LTE only. When I did, it switched it back to GSM/WCDMA/LTE auto. I'm just gonna relock my phone and set it back to the original stock rom and format my phone (yes I have the apps and stuff backed up). Because my actual mobile connection fluctuates on and off as well
Click to expand...
Click to collapse

It is locked in GSM/WCDM/LTE auto.

above that option it should tell you the network type. it is about half way between the "run ping test" button and the "Set Preferred Network type" option. Need to know what it says there.

Oh ok I see what you mean, it says HSDPA

make sure that you are in a active LTE area. toggle the radio off and on. the network type should change to LTE if it is available. remember that if you make a phone call your phone will drop back to just 4g/3g and it might take a second for it to switch back to LTE.

I live in Los Angeles so I'm like in the center of the LTE center in Southern California. But for some reason my phone won't get anything higher than 3G, and my actual cellphone reception toggles on and off randomly too.

It worked before. For the first 3 days atleast. And now all of the sudden it wouldn't work, so I rooted it and installed a custom ROM

Try one of WildChilds custom ROMS. LTE works on both and they're tailored to US users.
Sent from my HTC PH39100 using xda premium

if the problem arised before you rooted and rom'd the phone I doubt the rom is the problem. there is always the chance that you have a bad radio.

rft3ch said:
if the problem arised before you rooted and rom'd the phone I doubt the rom is the problem. there is always the chance that you have a bad radio.
Click to expand...
Click to collapse
That's what I'm thinking... What would I do about this?

i would verify your sim with another 4gLTE phone and vice versa.

Hrm... So it could be a Sim card problem eh? Unfortunately there are no other LTE devices for me to get a hold of... Would this be the only way?

it could be. i hope you have pulled battery/sim and then rebooted already. you can verify your phone with a known good sim and verify your sim with a known good phone. I would try your local at&t store. they might be able to help.
bangorang said:
Hrm... So it could be a Sim card problem eh? Unfortunately there are no other LTE devices for me to get a hold of... Would this be the only way?
Click to expand...
Click to collapse

rft3ch said:
it could be. i hope you have pulled battery/sim and then rebooted already. you can verify your phone with a known good sim and verify your sim with a known good phone. I would try your local at&t store. they might be able to help.
Click to expand...
Click to collapse
I have done it many times . Yeah I'm actually going to head over to the at&t store in a few minutes, I'll keep you posted. Thank you so much for your help! rft3ch!

I will be replacing my phone. I replaced the sim card and that wasn't the problem . The rep said that someone else came in with the same problem as well.

Unlocked HTC One Having AT&T LTE Issues

Hey everyone I just bought an unlocked HTC One and switched the SIM card from my iPhone 5 into the new phone. I unlocked the bootloader, rooted it, and installed ARHD Sense version and I am having problems with the phone getting LTE. No matter where I am, I am unable to acquire LTE on the phone. Even in places where I know for sure that it has LTE (due to getting it previously on my iPhone) I'm stuck on HSPA+. Anyone have any ideas what the problem might be? Faulty device maybe? Would rather not have to send the phone back. I have tried also changing the APN, which changed nothing.

brandenk0 said:
Hey everyone I just bought an unlocked HTC One and switched the SIM card from my iPhone 5 into the new phone. I unlocked the bootloader, rooted it, and installed ARHD Sense version and I am having problems with the phone getting LTE. No matter where I am, I am unable to acquire LTE on the phone. Even in places where I know for sure that it has LTE (due to getting it previously on my iPhone) I'm stuck on HSPA+. Anyone have any ideas what the problem might be? Faulty device maybe? Would rather not have to send the phone back. I have tried also changing the APN, which changed nothing.
Click to expand...
Click to collapse
Do you have LTE turned on? You should be on LTE/GSM/WDCMA under Network Mode in settings. Wording may very depending on your ROM.

Yeah I have Lte enabled, which is why I'm confused as to why lte is not working.
Sent from my HTC One using Tapatalk 4

My best guess... Consider calling AT&T and switching off the iPhone data plan to a "smartphone" data plan. I don't know the differences between the 2 but it could be effecting your ability to connect to lte from the one.

viperlox said:
My best guess... Consider calling AT&T and switching off the iPhone data plan to a "smartphone" data plan. I don't know the differences between the 2 but it could be effecting your ability to connect to lte from the one.
Click to expand...
Click to collapse
Hmm I've been considering it just I have seen other people just pop their iPhone 5 SIM into an unlocked/developer edition HTC One and have full LTE connectivity, and not to mention the fact that dealing with AT&T is a pain.

brandenk0 said:
Hmm I've been considering it just I have seen other people just pop their iPhone 5 SIM into an unlocked/dev edition the fact that dealing with AT&T is a pain.
Click to expand...
Click to collapse
I know what ya mean... You could also try flashing at&ts latest radio... It probably only really effects AT&T based roms but it's supposed to open up some new lte bands. I used the link from post 95. http://forum.xda-developers.com/showthread.php?t=2325564&page=10 just make sure you grab the right one installing the one for cm 10 on a sense Rom will mess up your signal strength because it replaces some ril files while flashing the radio. It's a shot in the dark but wont hurt to try.

viperlox said:
My best guess... Consider calling AT&T and switching off the iPhone data plan to a "smartphone" data plan. I don't know the differences between the 2 but it could be effecting your ability to connect to lte from the one.
Click to expand...
Click to collapse
That actually used to be a really common problem, but they seem to use the same data plans for all smartphones now. Still, might be worth a try.

brandenk0 said:
Hey everyone I just bought an unlocked HTC One and switched the SIM card from my iPhone 5 into the new phone. I unlocked the bootloader, rooted it, and installed ARHD Sense version and I am having problems with the phone getting LTE. No matter where I am, I am unable to acquire LTE on the phone. Even in places where I know for sure that it has LTE (due to getting it previously on my iPhone) I'm stuck on HSPA+. Anyone have any ideas what the problem might be? Faulty device maybe? Would rather not have to send the phone back. I have tried also changing the APN, which changed nothing.
Click to expand...
Click to collapse
dial *#*#4636#*#*
click phone info
scroll down
click above "Radio Button"
choose "LTE Only"
reboot device
if didnt work choose "LTE CDMA"
if didnt work
flash another Radio (newer or older)
if didnt work take to to AT&T

Muhammad.Muayad said:
dial *#*#4636#*#*
click phone info
scroll down
click above "Radio Button"
choose "LTE Only"
reboot device
if didnt work choose "LTE CDMA"
if didnt work
flash another Radio (newer or older)
if didnt work take to to AT&T
Click to expand...
Click to collapse
Thanks will try that out soon. Also, to the person above, tried flashing an AT&T radio, which didn't help anything, but was worth the shot. Thanks for the help guys.
EDIT: So tried out switching it to LTE Only and it wouldn't let the setting stick. It would automatically change the preferred network type back to what it was whenever selecting LTE Only. Also, the LTE, CDMA option did not change anything. Again thanks for the help, I'm just going to send it back and hope for the best with a new device.

Phone repaired, now can't connect to 3g

Hey guys,
So i broke my Xperia Z (C6603) screen 2 weeks ago and just got it back from my insurance company a few days ago.
They somehow unlocked my unlockable bootloader and also sim unlocked the phone. I was not disappointed with this
But, i can't connect to any 3G networks since getting my phone. And since my provider only supplies 3G and not 2G, i'm screwed.
I've factory reset, flashed various stock roms, 244, 423 and also flashed CM10.1 and CM10.2. No luck! I figured one would have a baseband that worked properly?
Everything else works fine, wifi, calls, nfc etc. But when i go into *#*#4636#*#* and try to set the preferred network type, i can't select LTE etc, it just defaults back to WCDMA. Also i have no option for LTE in the mobile settings network type (i did previously). Only WCDMA only, GSM only or WCDMA (preferred)/GSM. The last one should work, but still can't connect to 3G networks. Every time i try, it tells me "could not connect to the selected network, check your sim, blah blah". But it connects to the 2G variant of that network just fine.
My APN settings are fine, as i copied them from my HTC One on the same network. And the imei isn't blocked according to my provider.
I have tried another sim and this sim in another phone, so there is nothing wrong with my sim cards. And i doubt there's anything wrong with the sim card slot, since 2G wouldn't even work then. I'm on Three UK and have phoned them for help, but they were useless and fobbed me off to my insurance company.
Any ideas? I'm pretty much out of them

The fact that they unlocked a locked bootloader and SIM unlocked the phone sounds a bit dodgy to me.
You could try downloading the APN settings, go to Settings>Xperia>Internet settings.

Drummerjed said:
The fact that they unlocked a locked bootloader and SIM unlocked the phone sounds a bit dodgy to me.
You could try downloading the APN settings, go to Settings>Xperia>Internet settings.
Click to expand...
Click to collapse
Yeah i was thinking that myself, and have read reports of them sending people replacement phones with blocked imei's etc (stolen phones).
Think i'll be sending it back to them. The internet settings didn't work, but thanks for the suggestion

Mountainjew said:
Yeah i was thinking that myself, and have read reports of them sending people replacement phones with blocked imei's etc (stolen phones).
Think i'll be sending it back to them. The internet settings didn't work, but thanks for the suggestion
Click to expand...
Click to collapse
Yeah probably a good idea, get them to explain why they had to unlock the bl and SIM lock in order to replace the screen!

You on 3 by any chance?
Sent from my C6603 using xda app-developers app

Kirkymole said:
You on 3 by any chance?
Sent from my C6603 using xda app-developers app
Click to expand...
Click to collapse
Yeah i am.

How do you find your signal? Obviously having no 2G network is, in some cases, a disadvantage.
I only ask as on my HTC One S my signal was fine all the time, now with my Z I find my signal patchy and it takes a while to find any.
Oh and I wonder, does your My3 app work? Mines not working anymore, it always thinks I'm on wifi so won't open any payment pages.
Sent from my C6603 using xda app-developers app

Kirkymole said:
How do you find your signal? Obviously having no 2G network is, in some cases, a disadvantage.
I only ask as on my HTC One S my signal was fine all the time, now with my Z I find my signal patchy and it takes a while to find any.
Oh and I wonder, does your My3 app work? Mines not working anymore, it always thinks I'm on wifi so won't open any payment pages.
Sent from my C6603 using xda app-developers app
Click to expand...
Click to collapse
My signal on the Z was always great when it worked. On my HTC One it's not so good. The three app won't work on my Z, since i obviously have no data connection at the minute. But i never had any issues with it.