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Anyone using Captivate on T-Mobile USA?

I like the Captivate better than the Vibrant. Will it allow me to use 3G on the T-Mobile network?

I believe you would only get edge on at&t.
Sent from my SAMSUNG-SGH-I897 using XDA App

Technically it's the same type of network...

no, only EDGE. They have different 3G bands.
T-Mobile = 1700 MHz
ATT = 850 and 1900 MHz

we can use captivate in china with unicom

I have a Captivate on Tmobile.
Can confirm it's only Edge

I always snicker when I see these threads. T-Mo GSM =/= AT&T GSM. Yes there are common frequencies that all GSM phones use, but each carrier always has their own 3G frequency. None are shared.

While yes there are different GSM bands and yes T-mobile uses different GSM bands than AT&T, mostly all phones are quadband GSM nowadays and thus support but AT&T and T-mobile's GSM network. Even US triband GSM phones still has both AT&T and T-mobile's bands.
3G is where is it different. Not all phones support both T-mobiles and AT&T's 3g bands. Very few actually do. The Samsung Vibrant (another Galaxy S phone) supports T-mobile's 3G bands and can be changed in the service mode to support AT&T's 3G as well.
The Captivate is not the same. The Captivate can only support AT&T's 3G network and not T-mobile's 3G network. It will work on T-mobile's EDGE network.

amtrakcn said:
Technically it's the same type of network...
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Click to collapse
No they have a different bands for 3g, just because they use Sim cards doesnt mean it can run 3g on both networks
opcow said:
I believe you would only get edge on at&t.
Sent from my SAMSUNG-SGH-I897 using XDA App
Click to expand...
Click to collapse
Your wrong, the captivate is AT&T so you can 3G with AT&T and only Edge with tmobile

I'm also using the captivate on T-Mobile but can confirm that it's only on edge.

same situation with the nexus one. cant interchange or you can only get Edge

niceties of 3G
Wrong thread. I apologise!

vette95 said:
I just bought a Motorola Cliq (MB200). In Dominican Republic there are only 2 companies with 3G service. Claro Codetel (850Mhz) and Orange Dominicana (900Mhz)
Claro Codetel sells the Motorola Cliq for 3G usage on their network, branded to them of course.
The Cliq I bought is T-Mobile branded.
Is there ANY known way to debrand and have access to the 850 band for 3G?
I ask this question because I saw how it can be done on the Motorola Defy with a service flash found here, so I believe it should also be possible with my Moto Cliq.
I would really appreciate any input on this subject.
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Shouldn't you really be looking in those forums and not one for a Galaxy S phone?

Sorry, only did it because there were talks about other makes. I didn't realise it was a "Galaxy S Only" thread.
How do I delete my post?

I can get HSPDA over here in Malaysia.
Actually, both T-Mobile and AT&T phones work here. (2100Mhz 3G band)

vette95 said:
Sorry, only did it because there were talks about other makes. I didn't realise it was a "Galaxy S Only" thread.
How do I delete my post?
Click to expand...
Click to collapse
Only phone mentioned here was the Captivate. Which is what this fora is for.
Sent from my Captivate

Is EDGE service bad? the reason I ask is that I'm planning a trip from Nova Scotia to British Columbia, and going to be drive through the states. Cheaper Gas/Food/Lodging. you get the picture. I have a Captivate from Rogers which is unlocked and was thinking about getting a T-Mobile SIM card to use the Day Pass unlimited internet. However I don't understand what edge means and if this is a good thing or not. LOL
Thanks

Well at&t just bought t-mobile so maybe there will be a combining of signals?

studacris said:
Well at&t just bought t-mobile so maybe there will be a combining of signals?
Click to expand...
Click to collapse
They haven't bought, they are attempting to buy.
DOJ and FCC still have to approve it.
@OP
No, the Captivate was designed to only be supported for AT&T 3G. It does have the 2100 band, which T-Mobile 3G uses, but T-Mobile uses both 1700/2100 for upload/download, so if you don't have both, it locks you into 3G.

Anyone tried to flash a Phone with 1700 enabled?

nexus s overseas. are ALL nexus s' really carrier unlocked?

i cannot seem to find a straight answer to whether ALL nexus s' ship carrier unlocked. i live in philippines and the phone is being offered through globe although i plan to use the phone under the smart network. i was under the impression that google shipped all of these unlocked but i'm hearing from few people that it is PROBABLY locked to globe. i also see unlocking services that offer unlock codes for this particular phone on their websites implying that some of them do come carrier locked. can anyone confirm if these are all unlocked or not? thanks

the nexus s is not "carrier unlocked". it never was advertised as. even though 2g(edge) will probably work on any carrier, 3G(or 4G) is carrier spscific. thats why there are different versions of the nexus s. it will work on other networks as long as the 3G bands are the same. the nexus s is bootloader unlocked(well, you can unlock/lock it yourself).

isnt 3g/4g only carrier specific because of the carrier 3g frequency bands? i'm purchasing the phone here in the philippines which uses 900/2100mhz to connect to 3g as it is the standard operating 3g band for all europe and asia. my main concern is whether i will need an unlock code for the phone to even work with a sim card from a different carrier than the one i originally bought it for. 2g will work on every carrier and 3g will work only if that device supports your carriers 3g frequency band but before connecting to either one, the phone has to be unlocked and pass the "sim check"

shr0omz said:
isnt 3g/4g only carrier specific because of the carrier 3g frequency bands? i'm purchasing the phone here in the philippines which uses 900/2100mhz to connect to 3g as it is the standard operating 3g band for all europe and asia. my main concern is whether i will need an unlock code for the phone to even work with a sim card from a different carrier than the one i originally bought it for. 2g will work on every carrier and 3g will work only if that device supports your carriers 3g frequency band but before connecting to either one, the phone has to be unlocked and pass the "sim check"
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Click to collapse
ahhh..
if the frequency is the same, itll work. no sim unlock code needed. i missunderstood, sorry.

thanks for the quick response. no need for apologies... easy to get mixed up with all this cellphone termanology nowadays =). i just didnt want to say 'unlocked' because it wouldve been too vague. 'sim lock' probably wouldve been a better term in my original post.

shr0omz said:
thanks for the quick response. no need for apologies... easy to get mixed up with all this cellphone termanology nowadays =). i just didnt want to say 'unlocked' because it wouldve been too vague. 'sim lock' probably wouldve been a better term in my original post.
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None of them have any carrier lock. However you'll likely want the correct phone for your 3g frequencies. You could use the wrong one, you just won't get HSPA
Sent from my Nexus S 4G using XDA Premium App

shr0omz said:
i cannot seem to find a straight answer to whether ALL nexus s' ship carrier unlocked. i live in philippines and the phone is being offered through globe although i plan to use the phone under the smart network. i was under the impression that google shipped all of these unlocked but i'm hearing from few people that it is PROBABLY locked to globe. i also see unlocking services that offer unlock codes for this particular phone on their websites implying that some of them do come carrier locked. can anyone confirm if these are all unlocked or not? thanks
Click to expand...
Click to collapse
dude! lucky you i found this thread
I bought mine through Globe. I tested officemate#1's Sun sim and had officemate#2 send a text message to that sim while in my Nexus S, and I received it. I also sent a text message back to officemate#2 still using the Sun sim. and she got it back. So I guess we can say it's unlocked
Im not sure if I got lucky getting an unlocked Nexus S (even though there's a small sticker inside the Nexus S that says "this mobile may only be used with a Globe Sim card").
but i've read a lot of forum (since im researching about this because i have plans of using this in Singapore and i hate going through the hassle of unrooting and unlocking) and a lot of them say Nexus S units are unlocked even when a telecom carries it.

mbolinao said:
dude! lucky you i found this thread
I bought mine through Globe. I tested officemate#1's Sun sim and had officemate#2 send a text message to that sim while in my Nexus S, and I received it. I also sent a text message back to officemate#2 still using the Sun sim. and she got it back. So I guess we can say it's unlocked
Im not sure if I got lucky getting an unlocked Nexus S (even though there's a small sticker inside the Nexus S that says "this mobile may only be used with a Globe Sim card").
but i've read a lot of forum (since im researching about this because i have plans of using this in Singapore and i hate going through the hassle of unrooting and unlocking) and a lot of them say Nexus S units are unlocked even when a telecom carries it.
Click to expand...
Click to collapse
Google won't allow any provider to touch the software on the nexus line. So no matter what stickers it has or what the sales rep tells you, the phone is sim unlocked.
Sent from my Nexus S

oke this is actually a really simple answer.without the bloat information of the other guy's(sorry no offence.nice job participating in the question though)
the only carrier locked nexus.
is the nexus S 4G
cuz sprint doesnt use GSM+/hsdpa+
for its 4G.
the nexus S itself is a GSM phone.and will work on any GSM/HSDPA network.
i imported my nexus S out of the US. and it works fine on my Ben.nl sim(with working HSDPA,3G ect)
Ben.nl being a sister company of tmo-nl
Previously known as Samsung i9020
2G Network GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 900 / 1700 / 2100
Announced 2010, December
Status Available. Released 2010, December

In korea, that is fine! Korea model is not i9020.
Sent from my Nexus S using XDA App

ghost010 said:
oke this is actually a really simple answer.without the bloat information of the other guy's(sorry no offence.nice job participating in the question though)
the only carrier locked nexus.
is the nexus S 4G
cuz sprint doesnt use GSM+/hsdpa+
for its 4G.
the nexus S itself is a GSM phone.and will work on any GSM/HSDPA network.
i imported my nexus S out of the US. and it works fine on my Ben.nl sim(with working HSDPA,3G ect)
Ben.nl being a sister company of tmo-nl
Previously known as Samsung i9020
2G Network GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 900 / 1700 / 2100
Announced 2010, December
Status Available. Released 2010, December
Click to expand...
Click to collapse
wow looks like a really simple answer LOL

Will I be able to use Nexus S (SHW-M200k) in India
Recently I bought a SHW-200K in South Korea.
Will I be able to use the phone in India.
I wanted a SUPER AMOLED model and I read at many places that Nexus S comes in unlocked versions only.
Is it True?

Does your carrier in India use the same frequencies as the Korean model you bought? Did you at least look that up first?
Sent from my Nexus S 4G

I am not sure about the frequency used in India and Korea.
Before purchasing the product in Korea, I had checked if the phone would be working with the SIM card that I use in India. It was working.
The Nexus S variant that released in India says that it supports the following
2G Network GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 900 / 1700 / 2100
I am trying to explore more about the frequency related things that you mentioned.

I was told that they all come carrier unlocked.
Sent from my Nexus S using Tapatalk

[Q] Nexus S (i9023) not working with AT&T in the US?

That's what wikipedia said:
but noted that the device can only be used with T-Mobile in the U.S. and is not 4G compatible.
Click to expand...
Click to collapse
Can anybody confirm this?
Why should it only work with t-mobile?
I got my phone from amazon, no branding whatsoever, carrier info EUR.
Asides from the display, 9020 and 9023 are the same right, so it wouldn't matter which one I own?
The thing is, I'll be in the US for several weeks and I was hoping I could use my phone for navigation. And at&t has a prepaid offer where you get 500 MB for $25, I couldn't really find anything like that from t-mobile, maybe they don't have a good mobile data offer on prepaid, maybe I just can't find it because their homepage sucks so much..
Would be really great if somebody could tell me with which networks you can definitely use the Nexus S in the States!
Oh, and if you happen to know any better/superior prepaid offers, I'll be happy to hear..

royalmitkaese said:
That's what wikipedia said:
Can anybody confirm this?
Why should it only work with t-mobile?
I got my phone from amazon, no branding whatsoever, carrier info EUR.
Asides from the display, 9020 and 9023 are the same right, so it wouldn't matter which one I own?
The thing is, I'll be in the US for several weeks and I was hoping I could use my phone for navigation. And at&t has a prepaid offer where you get 500 MB for $25, I couldn't really find anything like that from t-mobile, maybe they don't have a good mobile data offer on prepaid, maybe I just can't find it because their homepage sucks so much..
Would be really great if somebody could tell me with which networks you can definitely use the Nexus S in the States!
Oh, and if you happen to know any better/superior prepaid offers, I'll be happy to hear..
Click to expand...
Click to collapse
The i9023 will support the GSM bands only (Edge) not the HSPA bands for AT&T. You'll get Edge/GPRS with an AT&T Sim, but not 3G.
There are 2 versions of the i9020 - the i9020 for the AWS 3G bands (T-Mobile US and most of the world) and the i9020a (850/1900 HSPA bands) for AT&T and some Canadian carriers.
The i9023 should work fine with T-Mobile in the US for 3G data.

Actually, we are in China, there is 9020A for Canada ROGERS, the phone can support china 3G 2100 HSPA bands.

What carriers can use?

I am currently using the phone as a pure wiiFi item. I will be coming out of contract with them and do not plain to get a nother contract. I know that att has a pay as you go for $.10/min with a $15 for 100mb. Belive it or noth that is enough for me for data as I normly only us the phone for about 20 min and 10-15 mb a mounth.
What I was woundering is if I unlock the phone are there other carriers I can go to with this phone so that I can compair? Thank for any help on this.

Yes, when you unlock you can choose any carrier of your choice
Big Dog Infuse I997 ICS CatyRom

Which country are you in? You basically need to check what bands the carrier you want to switch from uses. They need to match what your infuse can use otherwise it won't work.
The phone supports: UMTS 850/1900/2100 and GSM 850/900/1800/1900. I think T-mobile runs on a different band but I don't know for sure as I live in Canada. Here in Canada you can use this phone on Rogers (the carrier that sells it), Bell, Virgin, Fido but I don't think it will work on WIND. If memory serves me correctly it might not work on T-mo, Verizon or Sprint (because Sprint and Verizon are on CDMA). If you are in the US you might want advice from someone other than me though.

It works on t mobile because mine is unlocked and my daughter has used it with her T-Mobile sim
Sent from my DROIDX using xda premium

dman3285 said:
It works on t mobile because mine is unlocked and my daughter has used it with her T-Mobile sim
Sent from my DROIDX using xda premium
Click to expand...
Click to collapse
yeah but umts bands are incompatible so you still only get 2g.

Isn't it possible to band unlock the infuse, but it requires more than the typical efforts. wasn't some group offering to do it for $50 if you send your phone to them?

Straight Talk. Uses AT&T's networks. But you have to buy a phone off of them with a sim.
Sent from my SGH-I997

There are different types of carriers in America and there are many things scarier can,do to lock certain devices to the network. Tmobile and att are gsm carriers and have some compatibility But they use different bands. The talk works and edge works. No 3g.
Sprint and Verizon are cdma and are not compatible. However Verizon,has phones that are both gsm and cdma and can,work on att. Nextel has Sim cards but are iden. Boost is also half cdma and half iden. And begin is basically sprint.
Then there are the no contract deals like strait talk. Problem is the Sim may be locked to the phone and even if you know the phone has a Sim and is working off atts network it may not work. The strait talk thing is only known to work if you buy a $200 Nokia smartphone and many of those have Tmobile Sims that are locked to the phone. I'm not sure how to tell the tmo version from the att version without looking at the Sim itself. Strait talk seems to just buy rights to use other networks, I've seen phones at Walmart with gsm on the box and others with cdma on the box. I think they use all the major networks depending on the phone.
I also saw an ad for simple mobile. Seems promising but appears to be Tmobile
So no 3g.
In Canada almost all carriers are 100% compatible with att phones. All but one but I forgot the name. So if you're Canadian you have options.

Do not know if you know about this- New T-Mobile Monthly4G $30 Unlimited Web & Text with 100 min of talk
email delivery or purchase monthly cards at Super Walmart.
Can not post link but go to Walmart dot com and search for the card I listed above.. sorry

Consumer Cellular is an AT&T reseller - in fact AT&T phones treat their SIMs as an AT&T SIM, don't even need to unlock.
Sent from my GT-P7510 using Tapatalk

Entropy512 said:
Consumer Cellular is an AT&T reseller - in fact AT&T phones treat their SIMs as an AT&T SIM, don't even need to unlock.
Sent from my GT-P7510 using Tapatalk
Click to expand...
Click to collapse
Thanks, good to know. Might have to look into a consumer cellular Sim and an i777. I wonder if it will work with lte in the future (the Sim that is. not the phone) but I can,worry about that when my area gets lte and the next generation,phone comes out.

[Q] will this Nexus S work with T-Mobile??

I want to buy a Nexus S on ebay and there are a lot of them. I'm confused which one to buy for T-Mobile.
I found one that is locked to Sprint and the Specs show that it has AWS frequency (1700/2100). Theoretically, it should work with T-Mobile.
Usually phones from Sprint don't even have SIM card slot and they are CDMA(850,1900).
the Seller said that the phone has SIM card and the model # is GT-I9020T which is identical to T-Mobile Nexus S. He also said that his phone worked with AT&T.
He bought the phone from Sprint. I thought Sprint has only SPH-D720KIT (Nexus S 4G) model which I'm sure it doesn't work with T-Mobile.
What makes me more confused is the Specs which show AWS frequency (1700/2100).
I am confused. Will this phone work with T-Mobile? Did Sprint ever sell Nexus S i9020T model before Nexus S 4G came out? Or the info at eBay is just completely WRONG and seller is giving me wrong info??
This is the link that I want looking for => http://www.ebay.ca/itm/140693190583?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649#ht_500wt_1202

There are 4 variants for Samsung Nexus S :
1.Nexus S 4G -------> works with Sprint , CDMA phone that never has a SIM card slot ...
http://www.gsmarena.com/samsung_google_nexus_s_4g-3884.php
2.Nexus S I9020A -----> works with AT&T , Rogers , etc (any GSM network that uses 850/1900 3G frequencies)
http://www.gsmarena.com/samsung_google_nexus_s_i9020a-3920.php
3.Nexus S M200 --------> Korean varient
4.Nexus S I9020T or (I9023 with LCD screen)----------> these work with T-mobile USA (it has the AWS 1700/2100 3G frequencies) ....
http://www.gsmarena.com/samsung_google_nexus_s-3620.php
Any GSM Nexus S (the last 3) will work with T mobile as a phone to make calls , recieve messages and browse the web with EDGE speeds but only I9020T will have the 3G data speeds with T mobile ...
Make sure from the eBay seller about the model you're ordering so you'll not end up with a device that either will not work or work with EDGE speeds ... (I hate eBay) lol....

mahanddeem said:
There are 4 variants for Samsung Nexus S :
1.Nexus S 4G -------> works with Sprint , CDMA phone that never has a SIM card slot ...
2.Nexus S I9020A -----> works with AT&T , Rogers , etc (any GSM network that uses 850/1900 3G frequencies)
3.Nexus S M200 --------> Korean varient
4.Nexus S I9020T ----------> this one works with T-mobile USA (it has the AWS 1700/2100 3G frequencies) ....
Any GSM Nexus S (the last 3) will work with T mobile as a phone to make calls , recieve messages and browse the web with EDGE speeds but only I9020T will have the 3G data speeds with T mobile ...
Make sure from the eBay seller about the model you're ordering so you'll not end up with a device that either will not work or work with EDGE speeds ... (I hate eBay) lol....
Click to expand...
Click to collapse
Seller said that the Model # is GT-i9020T but this phone is from Sprint which uses CDMA. Will this phone work?
Did Sprint ever used to have Nexus S i9020T model before Nexus S 4G came out?

djak420 said:
Seller said that the Model # is GT-i9020T but this phone is from Sprint which uses CDMA. Will this phone work?
Did Sprint ever used to have Nexus S i9020T model before Nexus S 4G came out?
Click to expand...
Click to collapse
Either the seller is an idiot or he wants to pass some crap to you ....
Sprint is a CDMA network ... T mobile is a GSM network , very different from each other....

I9020T wil work on T-mobile, that's what the T means in I9020T as opposed to I9020A for At&t Also 1700/2100 are gsm 3g frequencies. the seller is most likely an idiot
Product Information
Equip yourself for the fast-paced world with the Samsung Nexus S 4G that combines 1 GHz processor with a 16 GB internal memory to give you a lightening fast operation. Thanks to the Android OS (Gingerbread), this Samsung smartphone gives you access to numerous apps and lets you switch between them effortlessly. This Android phone features an excellent 4-inch contour display to let you enjoy a vivid and clear view. You get to capture all your cherished moments with this Samsung smartphone that has a rear-facing 5 MP camera and a front-facing VGA camera. What’s more, this Android phone also lets you view your videos, pictures and games with minimal glare. The Samsung Nexus S 4G also reads information from "smart" tags, or objects that have NFC chips in them.
the specs say 3g version, the product info says 4g version. contact the seller for more info. look under the battery for the model number

nodstuff said:
I9020T wil work on T-mobile, that's what the T means in I9020T as opposed to I9020A for At&t Also 1700/2100 are gsm 3g frequencies. the seller is most likely an idiot
Click to expand...
Click to collapse
Oh my god. I could have bought something useless. Maybe he gave me wrong Model #. Thank you guys.

You can hit Thanks also ... And you're welcome
And if I were you , I would not buy from eBay . Amazon ?

On the plus side, as long as you go through official eBay channels for everything and use PayPal, if the seller gives you outright wrong product information you can get a full refund.

zorak950 said:
On the plus side, as long as you go through official eBay channels for everything and use PayPal, if the seller gives you outright wrong product information you can get a full refund.
Click to expand...
Click to collapse
good luck having a full refund from eBay , ever

mahanddeem said:
good luck having a full refund from eBay , ever
Click to expand...
Click to collapse
Full refund is from paypal, not ebay

Here's another not on sprints nexus s. The model number for the sprint phone is D-720. And it does NOT have a sim card. Just a heads up.
Sent from my Nexus S 4G using xda premium