[Q] ROAMING on home network after ROM Upgrade - Android Q&A, Help & Troubleshooting

Hi guys,
I have a similar problem to others as a search has indicated, with no solution.
It was mentioned that some ROMs may have settings that would flag roaming mode when outside of certain regions.
Currently I'm using an LG O2X with the leaked gingerbread ROM.
My original carrier is Fido Canada (which operates on a Rogers network).
The phone is from Fido originally, and of course, was not roaming with this sim before the ROM update.
Interestingly enough, I did the ROM update while I was in Madrid after unlocking the phone and using a Yoigo sim and never got the roaming icon.
Is anyone aware of these settings (in ROM), and how to change them?
or
Has anyone sorted out the roaming issue?

Please use the Q&A Forum for questions Thanks
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[Q] Bell to AT&T

Found a "deal" on a SGSII branded from Bell - I live in the south US and want to know if I throw a ROM (say Cog or a US dev. ROM) or even if I odin back to a factory ROM from an AT&T model - will this work? I cant think of something that would cause this to be an issue & I'm pretty sure it would get rid of the Bell boot up screens or any other branding but I am not 100% on that as I have never taken a out of country phone and attempted to do this before. I'm no noob with flashing but I'm also no developer either so your experience & assistance is appreciated!
(I searched & couldn't find this answered)
You don't need to replace the ROM. If the Bell phone is sim-locked, you'll need the unlock code; there's an unlocker program in one of the other forums that works with the earlier ROMs. IIRC, more recent ROMs have a different unlock mechanism that hasn't been reverse-engineered yet.
You can't replace the Bell ROM with an AT&T one, since AT&T doesn't have one -- no US carrier has released the SGS2 yet. The factory ROM will do the job; I bought a EU SGS2 back in May and have used it on AT&T since then. I get 3G & HSPA+ data at speeds up to 7 Mbps, using an old 3G SIM I've had for several years.

[Q] S2 & Docomo Japan

Hi,
I just got my docomo SIM with unlimited data plan.
But somehow i and the guy from the docomo shop couldn't get the data to work. APN is set to spmode.ne.jp
Here are my info:
Galaxy s2 international version.
CyanogenMod7
Maybe someone has some idea why it doesn't work?
Ask question in Cyanogen forum .
jje
This question was there already asked but not answered.
Anyways, i reverted back to stock rom and the problem persits. So it's not a problem of cm.
Is it possible that the s2 doesn't work in japan? In detail, that data doesn't work? Calls work very well.
If someone got the german/international version to work with data in japan please tell me.
Hi,
I bought my galaxys2 in France and unlocked it. It is now potentially possible to use it with any carrier (and I tested it with two other french carriers)
However, I am going to Japan for my job for at least a few years and since my phone is only a few month old, I'd like to keep on using it in Japan.
It is my understanding that if in "about phone" setting window the phone version is "GT-I9000", it means that I have the "international version" of the phone.
Is that right ?
If so, will it work with any japanese carrier (docomo, au, softbank...) ?
Thanks in advance to anyone who can shed some light on this because it is quite hard to find answers about this issue...

Blockiing Specific Mobile Networks JB

Hey,
This is a strange post however I assure you that there is method in my madness. My network provider is Virgin Mobile UK who are a virtual network that use the EE network to provide the service, the downside is that EE is the newly created network after Orange & T-Mobile merged their network. This sounds great however the Orange network is terrible at the minute and the data side of the service is pretty much unusable. The way around it has been to manually select the T-mobile network however the service seems to switch back to Orange presumable because Orange is the stronger voice network available.
My question is - is there anyway of blocking out the specific network code that Orange broadband effectively stopping the handset picking up Orange and forcing it to stick with T-mobile.
I have spoken to Virgin about this and they say that there is no official way of turning off the national roaming facility and there are no permanent changes that you can make to the handset as is it........so I am turning to the developer / hacking community.
Anyone want to offer some guidance?
Cheers
Obey the rules this is not a post for development.
jje
Sent from my GT-N8010 using xda premium
Maybe cultivating the APNs list may help (or make things worse). Being stuck in a similar situation myself, I know the pains of the horrible Orange UK network. I get 2G where I live and that is patchy at best.
Sorry if I posted in the wrong section....
Sent from my Nexus 4 using Tapatalk 2

[Q] GSM/CDMA issue

I've been working through these fine forums but can't find an answer to what is I admit a bit of an odd question and hope someone could shed some light on my problem?
A friend of mine who knows nothing about mobile phones or rooting has bought a Razr Xt912 from Ebay UK and is trying to use it with a UK mobile network. . I've no idea whether it was a UK device originally. He's also been 'messing' with it and may or may not have accepted a few OTA updates. There certainly seems to be some Verizon bloat on it that wouldn't be appropriate for a UK based phone. There is a SIM card slot so I'm assuming it works on both the CDMA and GSM systems. There's also an option for switching between 'global' 'CDMA' and 'GSM'. The phone is rooted and has SafeStrap 3.11 installed (by me).
The odd issue is that the phone has full voice and data when a Virgin Mobile (UK) SIM is installed but only has voice when an O2 (UK) SIM is swapped in. I could understand if the phone was locked to CDMA and neither UK system worked but the fact that it works fully on one and only provides voice on the other SIM is confusing me? It might be down to the network Virgin Mobile uses being the new UK EE 4G network but I'm not sure.
I'm trying to get the phone to work with the O2 GSM network and am not sure if I need to flash a custom GSM ROM, a CDMA ROM and then a GSM patch or simply contact O2 for an unlock code for GSM functionality.
I'm completely happy with rooting and flashing ROM's to phones on Samsung hardware but have to admit to being a bit uncertain about the pitfalls etc with Motorola.
The guides and install instructions for ROM on the forum are clear enough but I'm not sure if just flashing a GSM compatible ROM to this phone will make O2 data burst into life or fail completely. I've tried searches but the problem is so specific I'm struggling to find a post that directly addresses the problem. A pointer to such a thread or some advice would be most appreciated. Thanks.
I can help you out with 1 of your questions.
You say you have the xt912 so you can only flash cdma (xt912) roms, do not attempt to flash gsm (xt910) roms!
The xt912 will work on a gsm network outside of the usa only. Just to be clear here that does not mean you can flash gsm roms
Hope that helps somewhat
Sent from my XT910 using xda app-developers app

[Q] How to disable roaming?

Background:
I have a Samsung Galaxy SIII mini with Carbon Rom 4.4.2. I live in Mexico right next to the border with the US. My network carrier is movistar and I'm on contract (not prepaid).
Problem:
Back when my phone used the stock Jellybean 4.1.2 firmware I could just select my Mexican carrier and it would completely ignore T-mobile or At&t. Now with 4.4.2 my phone is connecting to T-mobile whenever I'm near the border even though I manually select Movistar from the list of carriers within range. Whenever my home networks signal diminishes it goes into roaming automatically even if it doesn't completely loose coverage. I hate to loose data connectivity because it goes into roaming and I won't enable data access while roaming because it's very expensive. How can I make the phone act the way it used to do with the stock Jellybean rom without having to revert to 4.1.2?
Note:
I'm going nuts over this because every time someone asks how to do this in this forum the only answer they get are instructions to disable data while roaming. I refuse to believe there is no other way to do this other than "suck it up" as most responses from other threads seem to be.

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