Database Develop

T-Mobile 3g on Captivate

Is there a way to make a rooted Captivate connect to the T-Mobile 3G radio frequencies? I'm comfortable using various ROMs and hacks....

I could be wrong but I think the 3g frequencies are different so it wont work.if there is a way I'd like to know also.
Sent from my SAMSUNG-SGH-I897 using XDA App

I thought this was already discussed when the unlock codes were found. The Captivate should work on Tmob 3G but the Vibrant cant on Att 3G. I don't believe you need to do anything to make the frequencies any different.

Tried my friend's sim from TMO in my captivate and it only does edge. His sim back in his G1 gets 3G so it is not the area. I believe the Vibrant works on ATT 3G but the Captivate doesn't work on TMO 3G.

flashman2002 said:
I thought this was already discussed when the unlock codes were found. The Captivate should work on Tmob 3G but the Vibrant cant on Att 3G. I don't believe you need to do anything to make the frequencies any different.
Click to expand...
Click to collapse
you have it mixed up: vibrant can work on one of at&t's 3g bands, but captivate will not work on any t-mobile 3g bands.

Yes that is correct, I do have these mixed up. I meant to say vibrant would work on att and captivate would not work on tmob. Sorry for my error.
Sweet life

I'm on my captivate w t-mobile w no luck on 3g. Too bad because I prefer the design of the captivate over the vibrant. I'll try to make due w 2g & WiFi.

That's too bad... However I just ordered a Vibrant, and I can sell my captivate for what I bought it for. So far loving the Galaxy S line!

[Q] Captivate on T-mobile data

So I'm certain you all have heard about the AT&T, Tmobile merger that's coming along. Assuming that it gets approved, I'll suddenly have 3g and 4g available in my area (finally!) since Tmobile is the only one that currently supports it in our area.
My question is - will the Captivate function on the T-mobile tower spectrum for 3g and 4g data?

Please research as the answer is no. The captivate does not have any bands that work on T-Mobile. The virbrant does have bands that work on att.
Sent from my SGH-I897 using XDA Premium App

flashman2002 said:
Please research as the answer is no. The captivate does not have any bands that work on T-Mobile. The virbrant does have bands that work on att.
Sent from my SGH-I897 using XDA Premium App
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Click to collapse
How unfair! My boyfriend has the vibrant, and one of his coworkers has the new Galaxy 4g. Well, I hope they somehow tweak it so that the towers broadcast on the AT&T bands as well, else that will really stink, and provides no benefit for AT&T customers.

I saw something on Gizmodo saying that 3G phones with T-Mobile bands will no longer work on the new combined network after integration is complete. That leaves only AT&T 3G devices and whatever 4G LTE devices are around by then. So it sounds like towers will be broadcasting only AT&T frequencies.
My apologies if this information is inaccurate in any way.
Perception 10.2 | SpeedMod K13D | I9000ZSJPG

Ikonomi said:
I saw something on Gizmodo saying that 3G phones with T-Mobile bands will no longer work on the new combined network after integration is complete. That leaves only AT&T 3G devices and whatever 4G LTE devices are around by then. So it sounds like towers will be broadcasting only AT&T frequencies.
My apologies if this information is inaccurate in any way.
Perception 10.2 | SpeedMod K13D | I9000ZSJPG
Click to expand...
Click to collapse
Awesome for me! Sucks for my boyfriend! (though his vibrant can use AT&T frequencies if jailbroken, which he has not yet done)

jamina1 said:
How unfair! My boyfriend has the vibrant, and one of his coworkers has the new Galaxy 4g. Well, I hope they somehow tweak it so that the towers broadcast on the AT&T bands as well, else that will really stink, and provides no benefit for AT&T customers.
Click to expand...
Click to collapse
I should restate what I said. The phone will work. It just won't have 3G speeds if you are using data. The Vibrant however still works on AT&T 3G towers. I don't know how or if they will actually disable bands as mentioned in a previous posters link to Gizmodo. Sorry for not being more clear in my original post.

flashman2002 said:
I should restate what I said. The phone will work. It just won't have 3G speeds if you are using data. The Vibrant however still works on AT&T 3G towers. I don't know how or if they will actually disable bands as mentioned in a previous posters link to Gizmodo. Sorry for not being more clear in my original post.
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Click to collapse
I guess we'll just have to see - it makes sense that AT&T would convert the towers, just as they are currently they won't work. So either way in my case and my boyfriend's case we'll have to wait till our area is integrated and see what happens.

What about this?
http://www.howardforums.com/showthr...850mhz-and-1900mhz-bands-too.-Works-on-ATT-3g
This thread is from last year before we really had a lot of mods to our phones. So maybe more information has been discovered?
Now we are flashing international ROMs and such and swapping modems as we like.
It seems odd that the Vibrant would be able to work on the ATT 3G frequencies but the Captivate would have been manufactured differently. And the I9000? One would think it would be capable of all the bands?
I do have both ATT and TMO sim cards with data on both plans. However, I only get Edge in my Captivate with the TMO sim inserted.

Wow. This hasn't been hashed out 100 times.
Cappy has different radio HARDWARE. Vibrant will get certain Att 3G band but the chances of you having correct band is slim since its older and slower 3G.
Sent via my Continuum 5 Cappy.

3g rogers

Nexus one. No 3g with rogers . Does someone knows why I only get edge on my nexus?
Sent from my Nexus One using XDA App

ruminskyy said:
Nexus one. No 3g with rogers . Does someone knows why I only get edge on my nexus?
Sent from my Nexus One using XDA App
Click to expand...
Click to collapse
Did it work before?
There are two versions of Nexus One's, the AWS TMO version, and the AT&T version (which I believe is compatible with Rogers). Since both companies use different frequencies for 3G data, if you are using the wrong one, you will only be able to receive edge due to hardware limitations.

I'm assuming you are in a 3g area? Other people around you get 3g OK?
Settings - Wireless & networks - Mobile networks: Is it set to "Use only 2g networks"?

there are 2 versions of the nexus one. one version only works with tmobile 3g, and the other version works with ATT/Rogers 3G and supports 850/1900mHz. you need the second version. you probably purchased the wrong nexus one version.
the rogers version is no longer sold, only the tmobile version. so you will have to find one used on ebay or craigslist.

I have an N1 that uses AT&T/Rogers bands and I connect to Roger's 3g network fine. What part of the country are you in? I'm in the Thunder Bay, Ontario area and I haven't had connection issues yet.

ruminskyy said:
Nexus one. No 3g with rogers . Does someone knows why I only get edge on my nexus?
Sent from my Nexus One using XDA App
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Click to collapse
Yeah, you have to make sure you bought the correct model to run on Rogers. Same network bands as AT&T in the US.
The T-Mo version can't use anything higher than EDGE.

Data-only SIM cards?

Now that we can SIM-unlock our Sprint HTC Ones, I've been curious about buying a prepaid a T-Mobile SIM to use when I can't get LTE or decent 3G. My friends on T-Mobile get great HSPA speeds (even when it's just HSPA 14.4) around Chicago, usually in places where my data sucks.
Ideally, I would like to pop a T-Mobile SIM card in my phone, but still receive calls and texts on my Sprint number without setting up some kind of forwarding service. Unfortunately, I suspect that SIM cards don't work in this fashion, though I am hopeful because the removal of the SIM on the Sprint HTC One simply cuts off support for LTE (probably because the only purpose of the SIM card in the Sprint HTC One is to authenticate LTE, but I'm not totally certain).
Alternatively, could I jump between my Sprint service and T-Mobile service if I installed a T-Mobile SIM by using the *#*#4636#*#* menu? Say I chose "EvDo Only," would I connect to Sprint 3g and get calls and texts on my Sprint number and simply select "WCDMA Preferred" when I want to use T-Mobile's HSPA network?
Sent from my HTC ONE using Tapatalk 2

On paper you should be able to connect to HSPA 14.4 on 1900MHz or 2G on 1900MHz. In actuality I don't know but there have been several other threads discussing similar topics. Here's one: http://forum.xda-developers.com/showthread.php?t=2386408

When I tested my T-Mobile sim, once I went into mobile networks and selected it, my phone number and my sms was thru the T-Mobile. So I don't think it will work as data only by default at least not saying that it is not possible, just sharing what I experienced.
Sent from my HTCONE using Tapatalk 2

uh60james said:
On paper you should be able to connect to HSPA 14.4 on 1900MHz or 2G on 1900MHz. In actuality I don't know but there have been several other threads discussing similar topics. Here's one: http://forum.xda-developers.com/showthread.php?t=2386408
Click to expand...
Click to collapse
Oh, this I know, thanks though. Actually, I was telling someone else just that earlier today:
subhumanderelict said:
The Sprint HTC One ONLY supports LTE on band 25. There are currently no carriers in the world other than Sprint that supports LTE on this band.
http://en.wikipedia.org/wiki/List_of_LTE_networks
EDIT: Oh, and the Sprint HTC One supports HSDPA on the 1900/2100 MHz UMTS bands up to 14.4Mbps, which is is slower than a lot of HSPA/HSDPA speeds available now (21.1Mbps and 42.2Mbps), though still more than fast enough for browsing or even streaming.
Sent from my HTCONE using Tapatalk 2
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Click to collapse
My questions more revolve around data-only options.
im0rtalz said:
When I tested my T-Mobile sim, once I went into mobile networks and selected it, my phone number and my sms was thru the T-Mobile. So I don't think it will work as data only by default at least not saying that it is not possible, just sharing what I experienced.
Sent from my HTCONE using Tapatalk 2
Click to expand...
Click to collapse
So you can leave a T-Mobile card in there and just switch between Sprint 3G/voice as well as T-Mo 3G/voice at will? That could be useful; for example, my favorite bar is a total dead zone for Sprint data, but T-Mobile flies. When I know I'm going there, I could pop a T-Mobile SIM, switch to that to check websites and whatnot, but switch it back to periodically check my text messages, right?

That I am not sure. I only tested with a friend's sim card from his nexus 4. With the Sprint sim card removed I was still on sprint cdma but once I went into the available GSM networks and chose T-Mobile, it registered and I was no longer on Sprint at all and it shows GSM icon up where my signal is at. Made a phone call and phone call came thru under my friend's phone number instead of my Sprint number. I'm not sure about sms I did not really played around with it long enough as I was just testing if the unlock really worked.

yes it work
im0rtalz said:
When I tested my T-Mobile sim, once I went into mobile networks and selected it, my phone number and my sms was thru the T-Mobile. So I don't think it will work as data only by default at least not saying that it is not possible, just sharing what I experienced.
Sent from my HTCONE using Tapatalk 2
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Click to collapse
im using it on t-mobile and i get 5 meg down but it keeps disconnecting ughhhh we need a gsm rom for the sprint htc one

im0rtalz said:
That I am not sure. I only tested with a friend's sim card from his nexus 4. With the Sprint sim card removed I was still on sprint cdma but once I went into the available GSM networks and chose T-Mobile, it registered and I was no longer on Sprint at all and it shows GSM icon up where my signal is at. Made a phone call and phone call came thru under my friend's phone number instead of my Sprint number. I'm not sure about sms I did not really played around with it long enough as I was just testing if the unlock really worked.
Click to expand...
Click to collapse
Hmm... I might just stroll over to a T-Mobile store today, activate/pick up a SIM for $10, and spend another $3 for the daily pay-as-you-go plan. 200MB for $3 isn't bad if you need it in a pinch...
spottarget said:
im using it on t-mobile and i get 5 meg down but it keeps disconnecting ughhhh we need a gsm rom for the sprint htc one
Click to expand...
Click to collapse
I've heard of these issues, does it happen if you stay in the same spot? Have you tried different modes in the *#*#4636#*#* menu other than "WCDMA Preferred"?
Sent from my HTC ONE using Tapatalk 2

Just an update: I went to a T-Mobile store over lunch to buy a SIM. I was prepared to drop the $10 for the SIM and $3 for the day pass, but it turns out I would need to buy a $10 minimum plan first. >:-\
I'd rather not spend $25 after tax just to see if it works. I'll ask my friend on Sunday if I can try hers. Hopefully I'll be in an area that's covered in 1900/2100MHz.
Sent from my HTC ONE using Tapatalk 2

Where did hi did the guide to sim unlock with domestic carriers?
I was under the assumption only foreign SIM cards worked.
Sent from my HTCONE using xda app-developers app

JSZESZE said:
Where did hi did the guide to sim unlock with domestic carriers?
I was under the assumption only foreign SIM cards worked.
Sent from my HTCONE using xda app-developers app
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Click to collapse
Once ur SIM unlocked it will work with any SIM card ur just limited on the antennas the phone has. Our phone supports voice 3g and minimal 4g on domestic carriers. The 4g has to be on 1900/2100 mhz in order for this phone to pick it up
Sent from my HTCONE using xda premium

luigi311 said:
Once ur SIM unlocked it will work with any SIM card ur just limited on the antennas the phone has. Our phone supports voice 3g and minimal 4g on domestic carriers. The 4g has to be on 1900/2100 mhz in order for this phone to pick it up
Sent from my HTCONE using xda premium
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Click to collapse
Ehh... Not really "4G" since the Sprint HTC One only supports LTE on 1900MHz band 25. T-Mobile uses 1900/2100MHz for HSPA, and the Sprint One only supports 14.4Mbps on those HSPA frequencies (much slower than T-Mobile's phones support).
Sent from my Sprint HTC One

Doesn't tmobile have that labeled as 4g though that's y I said it. It's their "4g"
Sent from my HTCONE using xda premium

I just tried with a data only sim from a 3g iPad and it never picked up signal. It showed me a list of networks but never any bars.
Sent from my HTCONE using xda premium

luigi311 said:
Doesn't tmobile have that labeled as 4g though that's y I said it. It's their "4g"
Sent from my HTCONE using xda premium
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Click to collapse
I see what you're saying, and I think that you're right, but their HSPA network (which they suddenly started calling "4G" strictly for marketing reasons) is significantly slower than most LTE networks. Only phones that would run on HSPA 42.2Mbps would give Sprint phones a run for their money. HSPA was never classified as even being a pre-4G network by the ITU. I think that only WiMAX and LTE hold that distinction. Anything that's HSPA but marketed as "4G" is a lie.
Sent from my Sprint HTC One

If you're in a Sprint 3g only area then t-mobile if on 1900 hspa is still faster. If you integrated your sprint number with Google voice the you can still get your sprint text messages from the Google voice app and use an app like talkatone or groove ip for voice over ip
Sent from my HTCONE using xda app-developers app

subhumanderelict said:
I see what you're saying, and I think that you're right, but their HSPA network (which they suddenly started calling "4G" strictly for marketing reasons) is significantly slower than most LTE networks. Only phones that would run on HSPA 42.2Mbps would give Sprint phones a run for their money. HSPA was never classified as even being a pre-4G network by the ITU. I think that only WiMAX and LTE hold that distinction. Anything that's HSPA but marketed as "4G" is a lie.
Sent from my Sprint HTC One
Click to expand...
Click to collapse
So I am not intending to get into a large debate about the HSPA ver of 4G vs the LTE networks other than to say that the top four carriers are not really using LTE to its truest potential because they're limiting backhaul connectivity to keep costs down. So that LTE network you're connected to doesn't have the fastest ethernet connection it should so in many cases it is "possible" for 42MB HSPA network to actually be faster in its actual deployment.
MG

subhumanderelict said:
Hmm... I might just stroll over to a T-Mobile store today, activate/pick up a SIM for $10, and spend another $3 for the daily pay-as-you-go plan. 200MB for $3 isn't bad if you need it in a pinch...
I've heard of these issues, does it happen if you stay in the same spot? Have you tried different modes in the *#*#4636#*#* menu other than "WCDMA Preferred"?
Sent from my HTC ONE using Tapatalk 2
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Click to collapse
yes i tryed evrything, sprint does block domestic carriers, sucksssssssss ughhh.

[Q] Is this possible to do?

To start with, kudos for this site. I have been reading it many times and am amazed at the community of developers around here.
Secondly, I searched but couldn't find my answer anywhere. And lastly, I apologize to the moderators if I posted this in the wrong place.
Anyway, here is my question: I have 2 HTC One right now, one is from Sprint and the other from AT&T. Here where I live, Sprint will only go on GSM networks but AT&T goes on the 4G LTE network. Both phones are unlocked since I am using them in Canada.
Is it possible to flash the Sprint phone with an AT&T Rom so I can force it to go on the 4G LTE network like my original AT&T does? I am in the impression that there are not many different phones except many carriers have specific bands that they use.
MAny thanks to those who will guide me in the right direction.
Bigdps

bigdps said:
To start with, kudos for this site. I have been reading it many times and am amazed at the community of developers around here.
Secondly, I searched but couldn't find my answer anywhere. And lastly, I apologize to the moderators if I posted this in the wrong place.
Anyway, here is my question: I have 2 HTC One right now, one is from Sprint and the other from AT&T. Here where I live, Sprint will only go on GSM networks but AT&T goes on the 4G LTE network. Both phones are unlocked since I am using them in Canada.
Is it possible to flash the Sprint phone with an AT&T Rom so I can force it to go on the 4G LTE network like my original AT&T does? I am in the impression that there are not many different phones except many carriers have specific bands that they use.
MAny thanks to those who will guide me in the right direction.
Bigdps
Click to expand...
Click to collapse
no you can't flash a gsm rom on to a sprint phone. sprint is cdma. you'll mess up or brick your phone.

bigdps said:
To start with, kudos for this site. I have been reading it many times and am amazed at the community of developers around here.
Secondly, I searched but couldn't find my answer anywhere. And lastly, I apologize to the moderators if I posted this in the wrong place.
Anyway, here is my question: I have 2 HTC One right now, one is from Sprint and the other from AT&T. Here where I live, Sprint will only go on GSM networks but AT&T goes on the 4G LTE network. Both phones are unlocked since I am using them in Canada.
Is it possible to flash the Sprint phone with an AT&T Rom so I can force it to go on the 4G LTE network like my original AT&T does? I am in the impression that there are not many different phones except many carriers have specific bands that they use.
MAny thanks to those who will guide me in the right direction.
Bigdps
Click to expand...
Click to collapse
You may want to list your specific carrier, but pretty sure Sprint's One only supports 1900MHz-band LTE.

Rirere said:
You may want to list your specific carrier, but pretty sure Sprint's One only supports 1900MHz-band LTE.
Click to expand...
Click to collapse
This is correct. The sprint One will not be able to use AT&T's LTE on 700mhz.

Can't understand something.
I am on Virgin Mobile. When I use the Sprint phone, it says GSM as my connection. When I use my AT&T phone, I get either 4G alone or with the LTE symbol below it.
Both phones has the same menu when I do the *#*#4636#*#* so can someone explain why I can't get 4G on Sprint using the same SIM card?
I thought they only made one phone and added the rom that best suited the carriers.

bigdps said:
I am on Virgin Mobile. When I use the Sprint phone, it says GSM as my connection. When I use my AT&T phone, I get either 4G alone or with the LTE symbol below it.
Both phones has the same menu when I do the *#*#4636#*#* so can someone explain why I can't get 4G on Sprint using the same SIM card?
I thought they only made one phone and added the rom that best suited the carriers.
Click to expand...
Click to collapse
Nope, it's much more than just software. There are several models of the One that HTC manufactures so they can optimize the antenna design to various regions/carriers.
The Sprint model can connect to the following frequencies (link):
2G/2.5G - GSM/GPRS/EDGE: 850/900/1800/1900 MHz
3G - UMTS/ HSPA: 1900/2100 MHz with HSPA+ up to 14.4 Mbps
3G - CDMA: 800/1900 MHz for Sprint
4G - LTE: Sprint: 1900 MHz
Click to expand...
Click to collapse
Sent from my HTCONE using Tapatalk 2

I wonder than why it doesn't connect any higher than GSM? I mean Virgin has roughly the same frequencies as Sprint if I go by the chart you provided. Never thought this was going to be that complicated...

Hope I'm not hijacking this thread, but I'm also interested in trying to flash a WWE rom (non carrier specific) to my phone, while I do have a sprint htc one. I reside in a region that only utilizes GSM so i don't need support for CDMA. Higher up in the thread someone stated that doing so would lead to bricking the device, but has anyone ever tried?

You can get psuedo-4g on gsm using the sprint model, you just wont be able to tell because it will only say gsm. 14.4mbps is the 4g you get with att unless it says LTE along with it, then you are connected to att lte.
The sprint model only has the LTE radio for sprints LTE in the USA. If you slid a tmo sim in your att phone, it wouldnt be able tp connect to LTE eother since they ise different bandz as well.
Hope that made sense
Sent from my HTCONE using xda app-developers app

demogorgon15 said:
Hope I'm not hijacking this thread, but I'm also interested in trying to flash a WWE rom (non carrier specific) to my phone, while I do have a sprint htc one. I reside in a region that only utilizes GSM so i don't need support for CDMA. Higher up in the thread someone stated that doing so would lead to bricking the device, but has anyone ever tried?
Click to expand...
Click to collapse
Yes, many have done that. A quick search in the general section will turn up several threads with a similar title of "I accidentally flashed a GSM ROM on my Sprint One and now it's bricked." The solution is to ruu back and you can get it working, but I WOULD NOT FLASH ANYTHING OTHER THAN A SPRINT ROM FOR A SPRINT PHONE.

A_Flying_Fox said:
You can get psuedo-4g on gsm using the sprint model, you just wont be able to tell because it will only say gsm. 14.4mbps is the 4g you get with att unless it says LTE along with it, then you are connected to att lte.
The sprint model only has the LTE radio for sprints LTE in the USA. If you slid a tmo sim in your att phone, it wouldnt be able tp connect to LTE eother since they ise different bandz as well.
Hope that made sense
Sent from my HTCONE using xda app-developers app
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Click to collapse
Dont even need to get 4g working, I have WiFi everywhere I go.
raptoro07 said:
Yes, many have done that. A quick search in the general section will turn up several threads with a similar title of "I accidentally flashed a GSM ROM on my Sprint One and now it's bricked." The solution is to ruu back and you can get it working, but I WOULD NOT FLASH ANYTHING OTHER THAN A SPRINT ROM FOR A SPRINT PHONE.
Click to expand...
Click to collapse
Sigh, if only i knew that purchasing the sprint version would have been like buying the bastard child of the htc ones...

demogorgon15 said:
Dont even need to get 4g working, I have WiFi everywhere I go.
Sigh, if only i knew that purchasing the sprint version would have been like buying the bastard child of the htc ones...
Click to expand...
Click to collapse
So then...whats the problem you seem to believe sprints version is the only one without att LTE, when in reality, the inly one with att LTE is the att version.
You cant flash a tmo rom on your att version even though theyre both gsm.
You cant flash a verizon rom on your spribt phone even though theyre both cdma.
Like i told you, 14.4 mbps is HSPA aka "4g" on tmobile and att. And you keep saying "it only goes upto GSM". Do you even know what youre talking about? Put the sim in your sprint phone, you will get "4g" GSM speeds. Use an app like sppedtest to try it out. "4g lte" means you are connected to the lte network.
If you get wifi everywhere you go, i honestly dont understand the point of this thread.
Sent from my HTCONE using xda app-developers app

A_Flying_Fox said:
So then...whats the problem you seem to believe sprints version is the only one without att LTE, when in reality, the inly one with att LTE is the att version.
You cant flash a tmo rom on your att version even though theyre both gsm.
You cant flash a verizon rom on your spribt phone even though theyre both cdma.
Like i told you, 14.4 mbps is HSPA aka "4g" on tmobile and att. And you keep saying "it only goes upto GSM". Do you even know what youre talking about? Put the sim in your sprint phone, you will get "4g" GSM speeds. Use an app like sppedtest to try it out. "4g lte" means you are connected to the lte network.
If you get wifi everywhere you go, i honestly dont understand the point of this thread.
Sent from my HTCONE using xda app-developers app
Click to expand...
Click to collapse
This isn't my thread, your confusing me with the person who started this thread and also mixing up our statements.

demogorgon15 said:
This isn't my thread, your confusing me with the person who started this thread and also mixing up our statements.
Click to expand...
Click to collapse
Exactly. I don't even know anymore if I have had a straight answer or not!
I found a link somewhere on this site that shows Sprint phones in their lonely category. I guess it does look like the Sprint HTC One phone was made with leftovers, sort of the black sheep of the family.
I so wanted to be able to transform it in a 4G LTE working phone but now, it looks likes it's a pipe dream after all:crying:.

demogorgon15 said:
This isn't my thread, your confusing me with the person who started this thread and also mixing up our statements.
Click to expand...
Click to collapse
LOL yeah oops sorry. Thats what happens with assumptions
Sent from my HTCONE using xda app-developers app