Why im Roaming with AT&T phone + BELL / TELUS SIM - Touch Pro2, Tilt 2 Windows Mobile ROM Development

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 ?

Related

Adding home (non-roaming) network

I live in Canada and have a Fido SIM card. When Rogers and Fido merged, the old Fido network ID (302-370) was made defunct so that the only GSM network available is the Rogers one (302-720).
As I am a Fido customer, it means that my Kaiser believes that it is always roaming as 302-370 is my home network and I can't use the roaming-based data rules to manage my data charges when I'm truly roaming.
Is there a way to add 302-720 as a "home network" as far as the Kaiser is concerned? Is this defined in the registry or in the ROM?
I am currently using the stock HTC ROM.
Thanks.
Its defined on the Sim card, just call Rogers and tell them what happened, and Im sure that they'll send you a new card with 302-720 as a home network.
Otherwise, I dont wanna be a Canadian Idiot! (LOL at Wierd Al for his song...)
Eh?
I've been in touch with both the regular customer service people and their "network people". They are either unable or unwilling to make that change for me. It is possible that they use the SIM's home network as a key to decide which back-end database they reference. Although they merged the two GSM networks, they still operate as two separate companies (apart from the price collusion, of course).
Yesterday, I even bought a new latest-generation SIM card to replace my ancient one thinking that it may fix the problem. No luck - it still uses the Fido network id.
So, as the SIM card is stuck the way it is, I need a way to override my Kaiser's opinion that the Rogers network is a roaming one.
I have a really similar problem, plus another one which might be related.
I am in the UK and on the "Three" network, they are mainly a 3G network and i'm not sure but they might not have 'any' 2G transmitters. So when I have 3G coverage there is no roaming icon and everything works fine.
If however I am in a 2G area and using their roaming partner (not sure who yet, possibly Orange) the GPRS will not work unless I go in and tell the phone to search for a network automatically then make a connection straight away. It says there is GPRS signal and connects but I can't actually transfer any data. The GSM standard phone calls and TXT messages work fine without doing that.
If anyone does have an answer on how to add additional home networks I would be gratefull to know too.
I have the same problem with Fido; however, when I put my SIM into a Samsung Jack flashed with Fido ROM, the roaming problem is gone. The Samsung Jack was from Rogers. This leads me to believe that the roaming is somehow set by the ROM.
I don't believe there is anyway you are going to be able to make the Rogers network not think you are a Rogers customer through a registry hack.
Maybe you can find a work around by using those dialing rules?
And the only real fix is to bite the bullet and switch over to a Rogers contract.
Switching over to Rogers will resolve the roaming issue and will finally be rid of the text from 18 for voicemail; however, I don't want to lose my old City Fido plan.
i also face same problem any solution guy's ?

Reward $125 : Trick Diamond into thinking that it is not roaming

I have the Diamond from the Rogers network in Canada. It is SIM unlocked and constantly flashed with a variety of different ROMs. I am on the Fido network in Canada, which was purchased by the Rogers network. Ever since Rogers bought Fido, every phone I put my SIM in shows roaming.
Fido has been no help in solving the roaming problem. I have gone through this and many forums and have not found a solution to this problem.
Many individuals have claimed that this is not possible and that it is defined by the network; however, I think the Windows Mobile OS can be tricked to thinking that it is on the home network, due to the following: I have a Samsung SGH-i616 originally from the Rogers network. I have SIM unlocked it and flashed it with the Fido Windows Mobile 6.1 ROM. This phone does not show that it is roaming. Everything works like it is on the home network for this phone.
I am willing to give US$100 to whoever could make a CAB or something that will trick the phone into thinking that it is not roaming. The fix should not just hide the roaming icon. It should make the phone work as if it was on a home network.
Who is willing to solve this problem and claim the fabulous reward???
Everyone that uses an HTC device with Fido suffers from this problem. I know that people on the Telfort network suffer from this roaming problem too. Surely, I am not the only one that has been severely annoyed by this right?
Dude, have a look here http://forum.xda-developers.com/showthread.php?t=503131&highlight=roaming see if that helps.
Thanks for the tip. Have looked into the thread before. Does not offer any help in defining a network as a home network.
If it helps in fixing my problem, all the files on my Samsung i616 (RILGSM.Dll files and such) are at their disposal.
try this (just throwing it out there)
hklm\software\microsoft\mds\cebits\roaming and set it to zero
i see some other registry settings but they do not look like they could be applicable.
Didn't have a registry entry there. Created a new dword called Roaming with value of 0. Rebooted my phone. Still the same. Roaming
Have you tried that other app No Data mentioned in that previous post?
Tried the No Data app. Does not trick phone into thinking it is not roaming. It disables data when roaming. Since my phone thinks it is roaming all the time, it successfully turns off data in my home network.
hameedx said:
I have the Diamond from the Rogers network in Canada. It is SIM unlocked and constantly flashed with a variety of different ROMs. I am on the Fido network in Canada, which was purchased by the Rogers network. Ever since Rogers bought Fido, every phone I put my SIM in shows roaming.
Fido has been no help in solving the roaming problem. I have gone through this and many forums and have not found a solution to this problem.
Many individuals have claimed that this is not possible and that it is defined by the network; however, I think the Windows Mobile OS can be tricked to thinking that it is on the home network, due to the following: I have a Samsung SGH-i616 originally from the Rogers network. I have SIM unlocked it and flashed it with the Fido Windows Mobile 6.1 update. This phone does not show that it is roaming. Everything works like it is on the home network for this phone.
I am willing to give US$100 to whoever could make a CAB or something that will trick the phone into thinking that it is not roaming. The fix should not just hide the roaming icon. It should make the phone work as if it was on a home network.
Who is willing to solve this problem and claim the fabulous reward???
Click to expand...
Click to collapse
How would you like to pay ?
WU or Paypall !!!
If you are able to solve my problem, I will pay you in any method you prefer. PayPal or Western Union is fine by me. Heck, I'll even put dollar bills in an envelope and post it to you if you prefer
A friend of mine is suffering from the same problem and is willing to give $25 to have the problem solved. So the reward is now $125.
If anyone else is having this problem, please put forward your pledge so that an enterprising developer can fix this issue and claim the large bounty.
I was looking for the EXACT same thing and I guess it means there's no solution?
Like you, I'm a Fido customer using a Rogers smartphone (Touch) and it always shows I'm roaming ... some programs can get around it, others cannot, and I get asked "Do you want to enable data connection when roaming? It may cost you." every time.
I'm also having the same problem. It's quite common in Norway, where a couple of big companies own the networks and the other providers "roam" in their network. Annoying.
Maybe you should contact Rogers to get a SIM card of them? Since Rogers bought Fido, so maybe you should get a Rogers card?
I am also having a roaming issue. I have nation wide coverage but when I get out of the state of Wisconsin, I start roaming. I get warnings about I am roaming and additional charges may apply when I open, send, or receive on email, internet, youtube, facebook ... pretty much anything data. I have an unlimited data plan so this shouldn't be an issue? I have nation wide coverage...
Gah! How to disable these warnings? Some adv. config / tweak program or registry edit?
Cybot12999 said:
Maybe you should contact Rogers to get a SIM card of them? Since Rogers bought Fido, so maybe you should get a Rogers card?
Click to expand...
Click to collapse
Can't put a Rogers SIM on the Fido network. Will get a validation error.
Does anybody have any input on how to get this issue fixed. I am very close to canceling my contract with my carrier over this problem
Same Trouble here in Montreal with my Rogers Diamond Phone (unlocked) and SIM fido.
ALWAYS ROAMING Grrrr
And I can't setup e-mail correctly and no home network to!
KaNiMziE
I also have recently activated an HTC Diamond on Fido, and constantly have the roaming icon above. It doesn't really bother me at all, however, I am just concerned about actual roaming charged. Roaming should be defined by the cell towers, correct? So, even though it displays a roaming icon, I am not really roaming at home, and therefore, will not be charged. Could anyone confirm?

Roaming

Hi,
Have a big problem in that whenever I put a rom on my new Tilt 2 (which I am running on the new HSPA Bell network). My phone thinks it is roaming.
This is a real pain and I can't seem to find away around the problem.
Please can somebody think of something I might be missing?
Thanks!!
pcuz said:
Hi,
Have a big problem in that whenever I put a rom on my new Tilt 2 (which I am running on the new HSPA Bell network). My phone thinks it is roaming.
This is a real pain and I can't seem to find away around the problem.
Please can somebody think of something I might be missing?
Thanks!!
Click to expand...
Click to collapse
Test a few radios and see what happens
smokestack76 said:
Test a few radios and see what happens
Click to expand...
Click to collapse
Ok will give that a try. Do I have to change th rilphone.dll as well?
No i never have and they flash just fine
smokestack76 said:
No i never have and they flash just fine
Click to expand...
Click to collapse
Thanks I will give it a go and let you know how I get on.
pcuz said:
Thanks I will give it a go and let you know how I get on.
Click to expand...
Click to collapse
Ok so tried a bunch of different radios but still get the same problem.
Any ideas folks??
pcuz said:
Hi,
Have a big problem in that whenever I put a rom on my new Tilt 2 (which I am running on the new HSPA Bell network). My phone thinks it is roaming.
This is a real pain and I can't seem to find away around the problem.
Please can somebody think of something I might be missing?
Thanks!!
Click to expand...
Click to collapse
Are you sure its roaming and not mistaken the icon for something else? Also, if you are indeed roaming, which network is it? AFAIK, in ON, there's only 2 HSPA network Rogers/Fido or Bell/Telus. Who is your provider?
mikron15 said:
Are you sure its roaming and not mistaken the icon for something else? Also, if you are indeed roaming, which network is it? AFAIK, in ON, there's only 2 HSPA network Rogers/Fido or Bell/Telus. Who is your provider?
Click to expand...
Click to collapse
So I have the icon telling me that I am roaming and all the application warn me before they download data that I am roaming as well (which is a right pain!!).
I am on the new Bell HSPA network.
Any ideas?
roaming..
ok .. this is my experience about this problem ..
first my home base is Netherlands ! and im using Telfort network on my nokia .. buat the last 3 year .. Telfort using KPN Network .. if you turn ON the phone .. it will display Telfort .. but a few second it will change to KPN ...
maybe.. your operator also using another network...
if I put my Telfort sim to TP2 it will display Telfort but with with ROAMING icon !!!
cheers
indra9110
indra9110 said:
ok .. this is my experience about this problem ..
first my home base is Netherlands ! and im using Telfort network on my nokia .. buat the last 3 year .. Telfort using KPN Network .. if you turn ON the phone .. it will display Telfort .. but a few second it will change to KPN ...
maybe.. your operator also using another network...
if I put my Telfort sim to TP2 it will display Telfort but with with ROAMING icon !!!
cheers
indra9110
Click to expand...
Click to collapse
Bell have their own network here so I dont think that could be the problem. I also have a Omnia 2 and an Iphone 3Gs that dont have this problem.
Also just tried to manually join the Rogers network and as I thought it would not let me connect.
It is only on the tilt2 after I flashed a new ROM onto it.
Thanks for the idea though.
Anybody else?
pcuz said:
Bell have their own network here so I dont think that could be the problem. I also have a Omnia 2 and an Iphone 3Gs that dont have this problem.
It is only on the tilt2 after I flashed a new ROM onto it.
Thanks for the idea though.
Anybody else?
Click to expand...
Click to collapse
EDIT: read this first and then try the following suggestion
Try setting in the TP2 band selection to only HSPA and see what happens. Since bell has no GSM, and if your phone is set to 2G mode only, it's falling back on Rogers/Fido, hence, the roaming.
Start>>Settings>>Personal>>Phone>> Goto "Band" tab>>Set the GSM/UMTS band to "GSM (1900+850) + UMTS(1900+850).
Play around with the Network type by switching to GSM only or CDMA or leave it on Auto.
FYI Rogers/Fido and Bell/Telus HSPA network runs on 850/1900 band.
Food for thought....
Also another thing to consider, considering that Bell/Telus HSPA network is new, I thought i read somewhere you have to get your device "added" to their new HSPA system. Right now, only new sign-up's gets on the new HSPA network. In other words, your phone is trying to get on Bell HSPA network, but Bell rejects it since it's not in their system, so your phone hop's onto next on the list, either roaming on Rogers HSPA or Rogers GSM.
P.S: You might find better response over here
mikron15 said:
EDIT: read this first and then try the following suggestion
Try setting in the TP2 band selection to only HSPA and see what happens. Since bell has no GSM, and if your phone is set to 2G mode only, it's falling back on Rogers/Fido, hence, the roaming.
Start>>Settings>>Personal>>Phone>> Goto "Band" tab>>Set the GSM/UMTS band to "GSM (1900+850) + UMTS(1900+850).
Play around with the Network type by switching to GSM only or CDMA or leave it on Auto.
FYI Rogers/Fido and Bell/Telus HSPA network runs on 850/1900 band.
Food for thought....
Also another thing to consider, considering that Bell/Telus HSPA network is new, I thought i read somewhere you have to get your device "added" to their new HSPA system. Right now, only new sign-up's gets on the new HSPA network. In other words, your phone is trying to get on Bell HSPA network, but Bell rejects it since it's not in their system, so your phone hop's onto next on the list, either roaming on Rogers HSPA or Rogers GSM.
P.S: You might find better response over here
Click to expand...
Click to collapse
Thanks for the detailed response.
I dont think I am on the Rogers network as I get the Bell operator logo appear and the phone stays on 3G (as I cant drop to Edge because Bell dont have it on their network).
Also checking my online billing from the past few days I would expect to see some nasty roaming charges which I dont have.
Finally I also have a Jailbroken Iphone and that works on the network fine without any problems.
Its just very weird!!
Just tried to connect to the Rogers network manually and it will not let me connect. So it must be something wierd on the device.
Oh, it does show Bell operator logo. I thought the phone was registering on another entwork other than Bell.
Hmm, since you are not incuring roaming charges, only thing I can think of, is the network list that comes within the ROM classifies Bell as CDMA and not updated to reflect it supports HSPA. So it reads the network id as Bell and network type as HSPA and thinks its roaming? I dunno, i could be wrong lol! ::shrugs::
mikron15 said:
Oh, it does show Bell operator logo. I thought the phone was registering on another entwork other than Bell.
Hmm, since you are not incuring roaming charges, only thing I can think of, is the network list that comes within the ROM classifies Bell as CDMA and not updated to reflect it supports HSPA. So it reads the network id as Bell and network type as HSPA and thinks its roaming? I dunno, i could be wrong lol! ::shrugs::
Click to expand...
Click to collapse
Make sense to me
I guess I can live with it if I need to. Does anybody know of a way to force the device not to flag any messages about roaming?
At least that will make it less annoying.

[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] Please help! Sprint One sim unlock, Always No service and won't auto reconnect

For the last weeks.. I have been trying to get this phone working with T-Mobile..I had unlock the sim card and now running badboyz 4.3 rom. 1.3
After unlocking the sim card and setting up the apn, selected T-Mobile from the available networks and it will connect. But when I go to work, I will lose signal every few block, and need to search for available network again and wait to select t mobile again.
I had try to use the t mobile sim card on my old phone and everything will works fine with no signal lost.
Can anyone please HELP!... I been searching and looking for an answer for more than 2 weeks..but no resolve.....
Thanks
Sim Unlock
lazybozz said:
For the last weeks.. I have been trying to get this phone working with T-Mobile..I had unlock the sim card and now running badboyz 4.3 rom. 1.3
After unlocking the sim card and setting up the apn, selected T-Mobile from the available networks and it will connect. But when I go to work, I will lose signal every few block, and need to search for available network again and wait to select t mobile again.
I had try to use the t mobile sim card on my old phone and everything will works fine with no signal lost.
Can anyone please HELP!... I been searching and looking for an answer for more than 2 weeks..but no resolve.....
Thanks
Click to expand...
Click to collapse
How did you get the SIM unlocked in the first place?
lazybozz said:
For the last weeks.. I have been trying to get this phone working with T-Mobile..I had unlock the sim card and now running badboyz 4.3 rom. 1.3
After unlocking the sim card and setting up the apn, selected T-Mobile from the available networks and it will connect. But when I go to work, I will lose signal every few block, and need to search for available network again and wait to select t mobile again.
I had try to use the t mobile sim card on my old phone and everything will works fine with no signal lost.
Can anyone please HELP!... I been searching and looking for an answer for more than 2 weeks..but no resolve.....
Thanks
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This is probably because T-mob covers only particular places the frequencies this phone uses http://theunlockr.com/2013/07/05/htc-one-sprint-specs/ vs t-mob https://t-mobile.jive-mobile.com/#jive-document?content=/api/core/v2/documents/4988
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Is there any solution for this problem ?
Is there anything I can do to fix this problem ? (different rom or radio...etc..) Or I have to give up the phone... Cause it is too much headache to "searching for network" all the time and miss all the call with no service on the phone without knowing..
Thanks
lazybozz said:
Is there anything I can do to fix this problem ? (different rom or radio...etc..) Or I have to give up the phone... Cause it is too much headache to "searching for network" all the time and miss all the call with no service on the phone without knowing..
Thanks
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well, I am not an expert on the tmobiles network, but going by what lazybozz, said, I seem to remember tmobile using different bands than the other carriers, so what you may be experiencing, is the phone being in the vicinity of multiple towers, but not all of them are within the band that the phone supports. So its like the phone doesnt even see those towers. On a side note, this issue caused alot of chaos for those who unlocked iphones about 3 years ago, they could use EDGE on tmobiles network but not 3G, so i assume this is a similar situation. So long story short, yeah you probably cant fix the problem, unless you get a quad band phone. I could be wrong, but it does sound like a logical reason for the issue you are having.
as elvisypi said above, Its the freq that T-mobile operates on in that area. If your getting T-mobile at all in the states then you have already flashed a radio. However flashing any other radio is not going to give you the freq that tmobile uses, Its not a software limitation its a physical hardware limitation.
Thanks for your reply, do you know any app out there that monitor and alarm you when the network or signal is lost ? That works with 4.3 ?That way at least you know the phone is offline ... some of the apps I tried is anything at all ...
Thanks
Have you tried an app like tasker? Its essentially an automation app. It isnt jist for your use. Its for many different functions. Jist look on the app store for tasker. That might help
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