[Q] SCH-R950: ¿Embedded SIM Cards for LTE? - General Questions and Answers

Hi There
I like to know if a SCH-R950 (Samsung Galaxy Note 2 from U.S. Cellular) would work with my Telco, outside USA.
We use CDMA in 800Mhz and EVDO also in the same frequency and in the coming months we'll have LTE (1900mhz).
In our country we used to buy mint conditions smartphone from US companies on eBay, normally from Sprint, which of course is cheaper that in our Telcos; sadly have embedded SIM Cards for LTE, so in essence I would like to know if this is the case for U.S. Cellular.
As for the GSM part I know if its locked but I don't care about it as for the time being I will be in this company network.
Thank you

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[Q] T-Mobile 4G Support

Hi There!
I was just in the US for 9 days, and bought a 30 day prepaid plan thinking that because it said I could have 4G I would actually get 4G Speeds. I was only able to get Edge Speeds anywhere I went, and it was pretty horrible.
I logged 2 support chat incidents the first guy was clueless, the second person said they don't give 4g speeds to non T-Mobile provided devices which I thought was pretty crappy.
Is there a software workaround to allow 4G speeds on Android devices purchased from other providers? My phone is an international unlocked device (NZ) and I can get H+ Speeds in Countries like Australia with no issues.
Anyone who could shed some light would be appreciated.
If it was a T-mobile prepaid card that was probably your issue. T-mobile utilizes different frequencies (AWS 1700 band) than almost all other GSM carriers. So if you do not have a t-mobile branded, or a pentaband phone you are only able to get edge speeds. Next time get prepaid AT&T and you will be good to go.
Yah it was a Prepaid Simcard and then a $30 card from Walmart delivered Electronically. I forgot to state I was using a Galaxy S2. Hard to comprehend it not supporting the 4G considering it's a device T-Mobile sell (Though it has slightly different spec's in terms of screen size and button configuration so potentially it could I guess support additional bands.
networkn said:
Yah it was a Prepaid Simcard and then a $30 card from Walmart delivered Electronically. I forgot to state I was using a Galaxy S2. Hard to comprehend it not supporting the 4G considering it's a device T-Mobile sell (Though it has slightly different spec's in terms of screen size and button configuration so potentially it could I guess support additional bands.
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The international SGSII (I9100) and the AT&T SGSII (I777) do not support T-mobile 3G or 4G. The Skyrocket and the T-mobile SGSII (Hercules) are pentaband phones that support both AT&T and T-mobile 4G. The reason for this is the Exynos processor which does not support the AWS bands. That is why the skyrocket and hercules come with the snapdragon processor.
Thanks for the reply, at least now I know. ATT doesn't seem to have anything similar to T-Mobile in so far as you get 5GB 4G, unlimited calling and texting for $30, are ATT generally more expensive?
Thanks.
Att is generally more expensive yes. But as someone already mentioned, Tmobile uses aws band which is different than almost all others for 4g. So you have to weigh your options
Sent from my Sensation using XDA App

Verizon Galaxy S3 SIM Unlock Swap for International Travel Possible?

Not too long ago, I had heard that the Verizon Galaxy S3 would support global roaming in a future update. With the Verizon Galaxy S3 release imminent, I was wondering if this was still the case.
I recently ordered a Galaxy S3 for my Dad, considering his contract with Verizon was up and the data plans were changing. Now, my dad often travels back and forth between the US and South Korea; so often in that he carries two different Android phones for each country (DROID Incredible on Verizon and Nexus S on KT).
Would it be possible for him to dump both the Incredible and Nexus S phones and use only Verizon Galaxy S3 on both of the carriers (if unlocked), by just swapping out the SIM card when traveling between Korea and the US? He will be keeping KT as his cell provider in Korea and from what I've heard, KT does allow foreign phones to be registered on their network, as long as they're unlocked. Both Verizon and KT support CDMA & LTE, but I'm not sure if their frequency bands overlap and if the Verizon S3 would be able to hook onto both without having to flash the radio.
I see that there's already a Voodoo S3 SIM Unlock app on Google Play (probably not compatible with Verizon S3 yet, but maybe eventually possible?).
Either way, it'd be awesome to be able to use the S3 as his main phone on both carriers with a simple SIM card swap! Does anyone have any insight on this, whether it would be possible or not?
CKTurbo128 said:
Not too long ago, I had heard that the Verizon Galaxy S3 would support global roaming in a future update. With the Verizon Galaxy S3 release imminent, I was wondering if this was still the case.
I recently ordered a Galaxy S3 for my Dad, considering his contract with Verizon was up and the data plans were changing. Now, my dad often travels back and forth between the US and South Korea; so often in that he carries two different Android phones for each country (DROID Incredible on Verizon and Nexus S on KT).
Would it be possible for him to dump both the Incredible and Nexus S phones and use only Verizon Galaxy S3 on both of the carriers (if unlocked), by just swapping out the SIM card when traveling between Korea and the US? He will be keeping KT as his cell provider in Korea and from what I've heard, KT does allow foreign phones to be registered on their network, as long as they're unlocked. Both Verizon and KT support CDMA & LTE, but I'm not sure if their frequency bands overlap and if the Verizon S3 would be able to hook onto both without having to flash the radio.
I see that there's already a Voodoo S3 SIM Unlock app on Google Play (probably not compatible with Verizon S3 yet, but maybe eventually possible?).
Either way, it'd be awesome to be able to use the S3 as his main phone on both carriers with a simple SIM card swap! Does anyone have any insight on this, whether it would be possible or not?
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As far as I understand it, the Verizon S3 needs a software update to unlock the GSM bands within the radio, which currently is not available...Also the LTE Bands are Not Compatible, according to my research Verizon uses 700/750 KT uses 1800. The Verizon S3 has 700/750 LTE Support...Also note while the Verizon S3 likely will have GSM support via a software update it will be Edge bands not WCDMA/HSPA+...as for the CDMA side out of luck there too according to KT they use the 1800 band and the Verizon S3 only has 850/1900 band for CDMA...in short getting the Verizon S3 will in no way help your father ditch his second phone...If your father is an international traveler he would be better suited to using a GSM carrier then buying a phone like the Galaxy Nexus which is pentaband WCDMA, this will work in any country that has WCDMA, I can vouch personally that my GNex (GSM Unlocked) works in S. Korea with HSPA+ Data Speeds as I was just there this past February.
So though the GS3 would most likely not be able to use 4G (through HSPA+, I may also be misunderstanding...) would it be able to have 3G overseas? I ask since I will be traveling to China later this year and being able to use 3G over there would be more convenient than getting another phone...

[Q] LTE Network Lock

Now I have a question, and I trust everyone on XDA more than I do random phone store employees (sorry to those members of XDA that are employees of phone companies). I recently sold my Samsung Galaxy S2 Skyrocket LTE to my father in law. It was originally for the Rogers Wireless network here in Canada. The father in law unlocked the phone and is currently using it on the MTS network over HSPA+ 4G.
At the end of August MTS launched LTE and currently they state that network is locked to only two devices, the Sony Xperia Ion and a LTE Rocket Stick. MTS even carries the iPhone5 yet they said it won't be on their LTE network till sometime next month when they unlock LTE to all devices using their LTE Sim Cards.
I want to know if and how this is even possible? If the father in law already has a LTE ready phone plan, shouldn't him getting a LTE Sim Card allow him to access the LTE network? I'm confused how a company can lock something like LTE to certain devices.

Is it possible to use US phones in korea?!

I have an aunt who is visiting me in America for a month. She will be going back in few weeks and she is interested in purchasing a note 3 in America since it's cheaper. Question is.. is it possible to use US based phones work in korea? Which carrier Note 3 would work the best?
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MUFC17JW said:
I have an aunt who is visiting me in America for a month. She will be going back in few weeks and she is interested in purchasing a note 3 in America since it's cheaper. Question is.. is it possible to use US based phones work in korea? Which carrier Note 3 would work the best?
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In theory, the phone should "work", as long as you can get it unlocked from the carrier. They should all have quad-band GSM, so you should be able to get data too. LTE is a different matter though. South Korea providers use bands 1, 3, 5, and 8. Both the AT&T and T-Mobile Note 3s support band 5, but that's the only one, and the Sprint and Verizon ones don't support any of those bands. SK Telecom and LG U+ use band 5, but SK Telecom also uses band 3 and LG U+ uses band 1, so your aunt might not get full LTE coverage if they use those other bands to fill gaps or something - but I really can't guess.
http://forums.androidcentral.com/sa...nter-operable-other-networks.html#post3079209
How much does a Note 3 cost in South Korea (USD equivalent)? Because you can get a "international" Note 3 32GB (N9005) from eBay or Amazon for $550-560. It supports LTE on bands 1, 3, 5, 8, and 20. So while she's in the US, she could pick up a pre-paid SIM from T-Mobile or AT&T (not Sprint or Verizon) or one of their MVNOs and use it in her new phone. She won't get LTE, but she will get 3G. If you're in a city, I'd recommend going with a T-Mobile MVNO (MetroPCS, for example), since they have a very strong 3G/HSPA+ network. But more importantly, it'll work on all the bands in South Korea, regardless of carrier.

Do dual network Phones Exist?

Hello, I currently have Sprint in the USA and locked into a contract but when travelling, the service is spotty. I have to take a 2nd phone that I have with tmobile. I understand I can buy like a new Sprint iphone or the new nexus and just swap sim cards and that will work? That is one option. I was also wondering if there is like a single phone that will work with both sprint and tmobile at the same time. Kinda like the samsung duos phones but those only work with 2 gsm carriers. Tried a search but didnt get anywhere. Thanks. Just weighing my options here.
stephenjones007 said:
Hello, I currently have Sprint in the USA and locked into a contract but when travelling, the service is spotty. I have to take a 2nd phone that I have with tmobile. I understand I can buy like a new Sprint iphone or the new nexus and just swap sim cards and that will work? That is one option. I was also wondering if there is like a single phone that will work with both sprint and tmobile at the same time. Kinda like the samsung duos phones but those only work with 2 gsm carriers. Tried a search but didnt get anywhere. Thanks. Just weighing my options here.
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Not with Sprint. As you've no doubt seen, dual SIM phones aren't exactly common in the US. The few that are are imports, and fewer still will even support North American GSM bands. And of course, Sprint uses CDMA for telephony, and only Sprint phones work on their own network. Your only option would be to switch to AT&T and/or T-Mobile or their MVNOs that work on those networks, and find the rare phone that has LTE for both. But if you're sticking with Sprint, you'll either have to swap SIMs on a device that works with any (as you said, iPhone, Nexus...I think the Moto X Pure does too), or carry a 2nd phone for a different carrier.

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