So over in the Vibrant forum, it's been found out that the Vibrant supports ATT 3g. I was quite skeptical myself, but it seems to be quite true.
http://forum.xda-developers.com/showthread.php?t=735461
Any word on whether the Captivate (which other than the case supposedly is identical hardware-wise to the Vibrant) is using the same chip, and if it thus supports T-Mobile 3g?
apparently Captivate does not support the 1700 frequency used by t-mobile for 3G. so as of now there is no way to use t-mobile 3G with the captivate
Related
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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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
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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?
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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?
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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?
I thought I did my homework. But when I called t-mobile to find out if the quad band Infuse would work on their network, I didn't ask what kind of data speeds I would get. My bad.
So now I have this almost perfect device that gets 2g speeds. Not even 3g. And they're charging me $9.99 a month (for tethering) for this privilege because it's not a t-mobile phone.
So if any of you know a workaround, please let me know.
Otherwise, I'll have a one week old Infuse to sell.
Bob
BobK58 said:
I thought I did my homework. But when I called t-mobile to find out if the quad band Infuse would work on their network, I didn't ask what kind of data speeds I would get. My bad.
So now I have this almost perfect device that gets 2g speeds. Not even 3g. And they're charging me $9.99 a month (for tethering) for this privilege because it's not a t-mobile phone.
So if any of you know a workaround, please let me know.
Otherwise, I'll have a one week old Infuse to sell.
Bob
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Sell it. The Infuse does not support the UMTS1700 band that T-Mobile uses. Neither does any other AT&T phone that I know of.
For the most part, with a few rare exceptions, unless the phone was sold by T-Mobile USA, it won't get 3G speeds.
You can sometimes go the other way - 2-3 T-Mobile phones support the AT&T 3G bands, but it's rare.
I don't think any AT&T phones support the AWS (UTMS1700) band for T-Mobile, but I know that a few T-Mobile phones (Galaxy S phones) have the 1900 band, so they work on AT&T's 3G network.
Your better off selling the Infuse and getting something like it for T-Mobile, or just wait for the SGS2, and get that, because your Infuse will be stuck on 2G.
Longcat14 said:
I don't think any AT&T phones support the AWS (UTMS1700) band for T-Mobile, but I know that a few T-Mobile phones (Galaxy S phones) have the 1900 band, so they work on AT&T's 3G network.
Your better off selling the Infuse and getting something like it for T-Mobile, or just wait for the SGS2, and get that, because your Infuse will be stuck on 2G.
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But what about when ATT takes over tmobile? Will it change then?
emeralds5668 said:
But what about when ATT takes over tmobile? Will it change then?
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Not for existing devices, it's a hardware limitation
The tech guy I spoke with at t-mobile said it probably will -- but that's quite a while to wait. By then a GSM version of Kyocera's Echo might be out. Now I know what questions to ask.
B
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
I found an interesting article about radios and LTE connections. The Radio Performance Disparity of the Galaxy Nexus on GSM and CDMA - Mobile Central - Binary Outcast
I have the oppurtunity to either go with ATT or Verizon. The article makes it seems that GSM is a better bet for LTE phones especially in areas with poor reception. I am hoping people can provide insight/comments on LTE phones for GSM and CDMA carriers and the article.
The Radio Performance Disparity of the Galaxy Nexus on GSM and CDMA
The Samsung Galaxy Nexus. It's Google's flagship phone that is designed to complement the Android 4.0 “Ice Cream Sandwich” operating system software. With high end specifications (for 2011) and highly optimized software, the Galaxy Nexus is supposed to show off what Android can really do without any interference from carriers and OEMs. However, that wound up not truly being the case in the United States with the CDMA/LTE variant for Verizon Wireless and Sprint.
By and large, the CDMA/LTE variant sold by Verizon Wireless and Sprint is the same as the original HSPA+ model that is now sold by Google on the Play Store (at least in terms of hardware). It has the same CPU, RAM, NFC chip, screen, cameras, etc. The only hardware difference is the cellular radio structure.
The original UMTS HSPA+ model uses an Intel XG626 baseband modem that is connected to an antenna structure that supports quad-band GSM and penta-band WCDMA for global usage. For Americans, it means that it works on the HSPA+ networks for both AT&T and T-Mobile USA.
The CDMA/LTE variant uses a VIA Telecom CBP7.1 CDMA2000 baseband modem, connected to an antenna structure that supports dual-band CDMA2000. The Sprint model adds another CDMA2000 band that is exclusive to Sprint. Both CDMA/LTE variants use a Samsung CMC221 LTE baseband modem, but the Verizon Wireless variant is set up for LTE band class 13 (Upper 700MHz C block), while the Sprint variant is set up for LTE band class 25 (U.S. Extended PCS, also known as PCS+G). The Verizon Galaxy Nexus has a user-accessible SIM card slot while the Sprint one does not.
While the Intel (formerly Infineon) baseband used to be troublesome on AT&T's network (as many iPhone users that didn't own an iPhone 4S can attest to), the latest generation of basebands work fine on both AT&T and T-Mobile. With 3GPP Release 7 support, it has a maximum downlink throughput of 21Mbps while it has a maximum uplink throughput of 5.76Mbps. In general, the Galaxy Nexus works very well on AT&T and T-Mobile.
However, it isn't the same for the CDMA variants of the Galaxy Nexus. The VIA Telecom CDMA chip is notorious for weak performance. Other notable devices that use the chip are the Samsung DROID Charge and the Samsung Stratosphere. Searching on the web about these devices turns up a lot of complaints about CDMA service quality with these devices.
Jason Perlow of ZDNet experienced more than his fair share of issues while trying to live off of the 4G LTE connection his Galaxy Nexus provided. But he was trying to live off of 4G LTE, not CDMA2000. So why was he affected? Well, the truth is, CDMA/LTE devices require both radios to be active and connected. Not to mention, network authentication and feature provisioning actually goes through the CDMA system, not the LTE one.
The bridge between CDMA2000 and LTE is rather brittle and is prone to failure, because LTE wasn't designed to be bridged with CDMA2000 like that. It was intended to be installed alongside GSM and WCDMA networks, and it handles it a lot better with those networks. So when something goes wrong in the rather terribly buggy CDMA system, the whole phone can and usually does fail. If Verizon Wireless had upgraded the CDMA2000 system to UMTS HSPA+ like most other CDMA2000 carriers across the globe, it would have avoided dealing with this problem.
Also, the CDMA/LTE Galaxy Nexus lies to you (at least, it does now). Originally, the “bars” that indicate signal strength would actually indicate the signal strength of LTE if it was connected to an LTE network. When everyone started complaining about how weak the signal was compared to the Motorola DROID RAZR and Motorola DROID Bionic, Anandtech investigated. It turned out that the signal strength was actually accurate, and that LTE signals are incredibly weak. Previous devices used the CDMA signal strength to determine how many “bars” of signal you have. The Galaxy Nexus did not. It used the LTE signal strength when it was connected to LTE, and the CDMA signal strength when it wasn't. Verizon Wireless issued an update shortly afterward that changed the behavior to match older LTE devices. Newer LTE devices do the same as well.
Combining the fact that the Galaxy Nexus has to work incredibly hard to maintain an LTE signal with the fact that the CDMA2000 radio is horrible and has a difficult time holding onto the connection will lead anyone to the conclusion that it is a recipe for disaster. Is it any wonder why Jason Perlow and many others have so many problems with the CDMA/LTE version of the Galaxy Nexus? Not really.
Of course, this is excluding all the issues with timely updates that Verizon Wireless has caused for Galaxy Nexus owners. Including this issue just makes the problem worse. There are ways to work around some of the issues, though some workarounds will result in permanent degradation of performance. However, it doesn't mean anything if it takes forever for anyone to get any updates that implement them.
In the end, I really can't solidly recommend the CDMA/LTE version of the Galaxy Nexus to anyone. Nor can I recommend any CDMA2000 device that uses a VIA Telecom CDMA baseband modem. The pitfalls just make it a bad experience for everyone.[
Will the snapdragon S4 chip from Qualcomm help with this issue?
Techno Buffalo has an article about T-Mobiles transition to LTE and a T Mobile person stated that their enhanced backload will help T Mobile's LTE. will this help AT&T's LTE Too? http://www.technobuffalo.com/news/w...backhaul-is-the-key-to-a-users-4g-experience/
Here is another article talking about the challenge CDMA has with LTE when the LTE signal is weak
http://www.phonearena.com/news/How-...-you-dont-need-it-and-save-on-battery_id32990
small error?
Hey didn't have time to read what you wrote but gsm is 2g and wcmda is 3g and 4g and LTE is also 4g so what you wrote did not make much sense GSM WCMDA and LTE are 3 different types of radios and here is a tip lo let people help you faster dont add more to what you wrote edit it instead because now it looks like 3 people already helped you
thanks if it helped :good:
For me this is highly theoretical. I recently moved from Dayton, Ohio to Kingsland, Georgia with a Verizon Galaxy Nexus (CDMA). In both places, if I allowed the LTE radio, the phone would get too hot to handle comfortably, and 3G isn't that great either. But in my neighborhood, there is no AT&T or T-Mobile data signal at all. That severely limits practical choices.
One more http://www.extremetech.com/mobile/110711-what-is-lte/7
Hey guys i recently unlocked my HOX and tossed a T-Mobile chip in it. Is there a way for me to get a better data speed? I'm only able to use 2G at the moment.
You can't simply enable it, as T-Mobile uses the 1700 AWS spectrum for 3G/4G in most of their areas. The HOX doesn't support 1700. T-Mobile's older 2G network runs on 1900mhz, which the HOX will pick up, but you'll be limited to EDGE speeds.
There is good news though. T-Mobile is currently in the process of upgrading those areas to support 3G/4G on the 1900mhz spectrum they have. Their main goal is to attract iPhone customers (since the iPhone also cannot run on their 1700mhz network). From what I've heard they're doing a pretty good job, but until they get your area upgraded, you'll be stuck on EDGE.
Hope that explanation makes sense. If not, here's a decent writeup:
http://9to5mac.com/2012/05/07/t-mob...rk-in-large-number-of-markets-by-end-of-2012/