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Htc Evo 4g Is for all user or only Sprint???????

Who knows that?

eshghman189 said:
Who knows that?
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The 4g portion will only be compatible with sprint's network.
The phone can technically work with other cdma carriers if you know what your doing, and will require some skill to get it to work, or a guide from someone that figures it out. 3G and 1x would possibly work if stuff is configured correctly, the radio is technically compatable with other carriers for everything other than 4g
This doesn't mean you can walk into bell south or verizon and say "hook it up" because that will definitely not work. You gotta make it work, I'm sure more info on how to do it will arise as people get their hands on it, as some have gotten the hero to work off sprints network.

I doubt 4G will work on Verizon's network those are to my knowledge the only major CDMA netwrks (in the US at least).
Verizon's take on 4g will be LTE while Sprint is going WiMax so I seriously doubt the phone's 4G radio will work across the board however the 3G and the call CDMA radio should work.

Sebrina said:
I doubt 4G will work on Verizon's network those are to my knowledge the only major CDMA netwrks (in the US at least).
Verizon's take on 4g will be LTE while Sprint is going WiMax so I seriously doubt the phone's 4G radio will work across the board however the 3G and the call CDMA radio should work.
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Click to collapse
From what I gather the radios will operate on different frequencies
wimax on 2.5 GHz
http://en.wikipedia.org/wiki/WiMAX#Spectrum_allocation
lte is on 700 MHz
http://en.wikipedia.org/wiki/3GPP_Long_Term_Evolution#Frequency_bands_and_channel_bandwidths
so I'm going to go ahead and say not a chance of it working.... although I may be wrong

Tanx
Plz tell me more

more about what? the different frequencies?
Um well, for example you can't tune your tv to the radio channel even though they use similar technologies. (well you could back in the day depending on your tv but that isn't helping my point ) But it just uses different frequencies, look at this for a better understanding of frequency allocation,
http://upload.wikimedia.org/wikiped...locations_Chart_2003_-_The_Radio_Spectrum.jpg
The chart is rather busy, but see how each is boxed off? That is what a radio designed to operate on will be limited to. the wimax and lte are very far apart from each other in this spectrum, it will be extremely unlikely it will be able to operate on both frequencies.
This talks about the radio used in the EVO.
http://www.thesearethedroids.com/2010/03/25/sprint-evo4-chipset-qsd8650-supports-gsm-and-hspa/
Not an insane amount of LTE info is out there other than what's been cleared by the FCC, more info on the radios that will be used as soon as one is released. I know one thing, the freqs are different so the same roaming you enjoy now with sprint 3g will not be shared with 4g with verizon when they kick off LTE. 3g roaming will stay unaffected per sprint and verizon's roaming agreement because of same technologies and freqs used. Only the 4g portion will be different.
One chipset to be on the lookout for is this http://www.beceem.com/ends_4G_debate_LTE.html it will support both technologies, but it unfortunately will not be in the sprint EVO. Be on the lookout though as something with this chipset might counter the aforementioned roaming problem.

johnsongrantr said:
more about what? the different frequencies?
Um well, for example you can't tune your tv to the radio channel even though they use similar technologies. (well you could back in the day depending on your tv but that isn't helping my point ) But it just uses different frequencies, look at this for a better understanding of frequency allocation,
http://upload.wikimedia.org/wikiped...locations_Chart_2003_-_The_Radio_Spectrum.jpg
The chart is rather busy, but see how each is boxed off? That is what a radio designed to operate on will be limited to. the wimax and lte are very far apart from each other in this spectrum, it will be extremely unlikely it will be able to operate on both frequencies.
This talks about the radio used in the EVO.
http://www.thesearethedroids.com/2010/03/25/sprint-evo4-chipset-qsd8650-supports-gsm-and-hspa/
Not an insane amount of LTE info is out there other than what's been cleared by the FCC, more info on the radios that will be used as soon as one is released. I know one thing, the freqs are different so the same roaming you enjoy now with sprint 3g will not be shared with 4g with verizon when they kick off LTE. 3g roaming will stay unaffected per sprint and verizon's roaming agreement because of same technologies and freqs used. Only the 4g portion will be different.
One chipset to be on the lookout for is this http://www.beceem.com/ends_4G_debate_LTE.html it will support both technologies, but it unfortunately will not be in the sprint EVO. Be on the lookout though as something with this chipset might counter the aforementioned roaming problem.
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tanx,very useful

interesting
Not that my phone ever roams (I don't travel much), but when it does my Sprint will only go to Verizon? Did I understand that correctly?

Manicmobileaddict said:
Not that my phone ever roams (I don't travel much), but when it does my Sprint will only go to Verizon? Did I understand that correctly?
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Click to collapse
Yes, your Sprint phone will only roam on Verizon's network cause their both cdma networks.

Luckily for Sprint users Verizon covers more area than any other carrier in the US.

Luckily for Sprint users Verizon covers more area than any other carrier in the US.
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that's not true Sprint has the biggest coverage area of all the us carriers. don't beleave everything you hear from a commercial.
Sent from my HERO200 using the XDA mobile application powered by Tapatalk

chippillie said:
that's not true Sprint has the biggest coverage area of all the us carriers. don't beleave everything you hear from a commercial.
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Click to collapse
Where is this info from?

whole world
I think this phone is for the whole world not sprint,
sprint is only for 4g

eshghman189 said:
I think this phone is for the whole world not sprint,
sprint is only for 4g
Click to expand...
Click to collapse
Do WHAT?!
This phone is built for Sprint. Sprint is 3G/4G.

eshghman189 said:
I think this phone is for the whole world not sprint,
sprint is only for 4g
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Click to collapse
http://www.thesearethedroids.com/2010/03/25/sprint-evo4-chipset-qsd8650-supports-gsm-and-hspa/
However, it’s almost guaranteed that you won’t be able to use over half of those networks because the phone will lack the right amplifiers and/or antennas
Click to expand...
Click to collapse

big band
It is support width band,I think u can change rillphone to work with other country and netwoek

eshghman189 said:
It is support width band,I think u can change rillphone to work with other country and netwoek
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Click to collapse
I highlighted the part you need to re-read in my last post (it was a pretty lengthy quote)
but unless you plan to electrically (as in soldering iron and tiny electronic parts) modify your phone, don't plan on it being able to actually use those other frequencies.
They are not advertising it as a world phone (sprint has made worldphones before and advertised it because it's a selling point) so they are not going to put needless hardware that they won't enable, doesn't make sense, and it costs them additional money to make it that way.
If you did get that modification in, you will then have to edit the programming of your phone's cellular radio to talk on those frequencies and towers because they will not be built into whatever radio firmware ships with it because it wasn't needed because the amplifiers were left out. That will be an almost as equally difficult task.
I don't know man... good luck if you don't believe me.

Arc not 3G compatible in US?

Hello,
Maybe you guys can help me clarify something for me. I want to buy this phone and get the unlocked version. Only problem is no matter which seller I'm looking at on Ebay they're all saying "3G Not compatible in the U.S" which means I'll be running at 2G and I actually considered this ok because i really want to this phone. But I want to know why it won't work? If it's a GSM phone and it would work with AT&T & T-Mobile my local carriers why wouldn't it give me 3G speeds?
I really want this phone because I wanted something different, something you won't see out here much. Plus I wanted to get back to Sony phones after playing with other manufactors. Can anyone help clear this is up for me?

Nishua said:
But I want to know why it won't work? If it's a GSM phone and it would work with AT&T & T-Mobile my local carriers why wouldn't it give me 3G speeds?
Click to expand...
Click to collapse
For the same reason that a T-Mobile US GSM handset won't give you 3G on AT&T - it's the wrong frequency.
Most of the world uses the 2100MHz band for UMTS/HSDPA but AT&T are awkward and use 1900MHz and 850MHz and T-Mobile are even more awkward and use the extremely unusual 1700MHz band.

Nishua said:
Hello,
Maybe you guys can help me clarify something for me. I want to buy this phone and get the unlocked version. Only problem is no matter which seller I'm looking at on Ebay they're all saying "3G Not compatible in the U.S" which means I'll be running at 2G and I actually considered this ok because i really want to this phone. But I want to know why it won't work? If it's a GSM phone and it would work with AT&T & T-Mobile my local carriers why wouldn't it give me 3G speeds?
I really want this phone because I wanted something different, something you won't see out here much. Plus I wanted to get back to Sony phones after playing with other manufactors. Can anyone help clear this is up for me?
Click to expand...
Click to collapse
LT15i = T-Mobile 3G bands
LT15a = AT&T 3G bands

augie7107 said:
LT15i = T-Mobile 3G bands
Click to expand...
Click to collapse
No, the LT15i doesn't support the AWS (1700MHz) band so it won't support T-Mobile US's 3G service.

Step666 said:
No, the LT15i doesn't support the AWS (1700MHz) band so it won't support T-Mobile US's 3G service.
Click to expand...
Click to collapse
T-Mobile also uses 2100

Hmm I thought that tmobile U. S used the same 3G bands as europe. So in theory it should work right?
Sent from my GT-I9000 using XDA Premium App

augie7107 said:
T-Mobile also uses 2100
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Click to collapse
No they don't.
T-Mobile's 3G uses a ~1700MHz frequency to upload and a ~2100MHz frequency to download, this is the '1700MHz band', also referred to as 'AWS' or 'UMTS band IV'.
Compare this to the '2100MHz band' ( or 'UMTS band I') which uses a frequency of ~1900MHz to upload and a frequency of ~2100MHz to download. The two are not cross-compatible.
The LT15i supports the 2100MHz band but not the 1700MHz band, so no 3G on T-Mobile.
If you don't believe me, feel free to read this thread on T-Mobile US's own site.
People with handsets that only support the 2100MHz band don't get 3G service.
Hero Yu said:
Hmm I thought that tmobile U. S used the same 3G bands as europe.
Click to expand...
Click to collapse
They don't.

[No they don't.
T-Mobile's 3G uses a ~1700MHz frequency to upload and a ~2100MHz frequency to download, this is the '1700MHz band', also referred to as 'AWS' or 'UMTS band IV'.]
Thanks for the detailed explanation.
You obviously know more about this than I do.
I do believe your first two statements are contradictory.
You state "no they don't" and then go on to say "they use a 2100 to download"
All other SE "I" version phones work with T-Mobile 3G, correct?

augie7107 said:
[No they don't.
T-Mobile's 3G uses a ~1700MHz frequency to upload and a ~2100MHz frequency to download, this is the '1700MHz band', also referred to as 'AWS' or 'UMTS band IV'.]
Thanks for the detailed explanation.
You obviously know more about this than I do.
I do believe your first two statements are contradictory.
You state "no they don't" and then go on to say "they use a 2100 to download"
All other SE "I" version phones work with T-Mobile 3G, correct?
Click to expand...
Click to collapse
They never make anything the same. They may work or they may not. You should pay attention to every details of any product you are buying, no general rules existing with any product specially gadgets which they get a new technology everyday.

augie7107 said:
I do believe your first two statements are contradictory.
Click to expand...
Click to collapse
I can see why you might think that but it's not contradictory because band and frequency are not the same.
If we look at the specs for the Arc, it says says '3G Network HSDPA 900 / 2100' (that's the LT15i, the line below is the frequencies supported by the LT15a).
Those numbers refer to UMTS bands I and VIII as listed here.
As you can see from the page on Wikipedia, every band operates on two different frequencies, one for uploading and one for downloading. This is to avoid interference.
So even though the download frequencies of the 1700 band and the 2100 band are the same, the two bands are not compatible as the upload frequencies are different (sorry for all the underlining, it just makes it easier to explain...).
It would be a lot simpler if each band's upload and download frequencies were distinct, it would be far less confusing but I guess there's some sort of reason why things are the way they are...
augie7107 said:
All other SE "I" version phones work with T-Mobile 3G, correct?
Click to expand...
Click to collapse
I don't think so, not unless they say they support the 1700/AWS band.
Basically, unless a phone's specs say it supports 1700MHz for 3G (or mentions AWS support, which means the same thing), it should be assumed that it won't give you 3G on T-Mobile US.
Though this all starts to become even more confusing when local roaming agreements are factored in but I don't really know anything about that to be honest.

Nishua said:
Hello,
Maybe you guys can help me clarify something for me. I want to buy this phone and get the unlocked version. Only problem is no matter which seller I'm looking at on Ebay they're all saying "3G Not compatible in the U.S" which means I'll be running at 2G and I actually considered this ok because i really want to this phone. But I want to know why it won't work? If it's a GSM phone and it would work with AT&T & T-Mobile my local carriers why wouldn't it give me 3G speeds?
I really want this phone because I wanted something different, something you won't see out here much. Plus I wanted to get back to Sony phones after playing with other manufactors. Can anyone help clear this is up for me?
Click to expand...
Click to collapse
In short:
LT15i: 2G will work just fine on both AT&T and T-Mobile. 3G will NOT work on either network.
LT15a: 2G will work just fine on both AT&T and T-Mobile. 3G will ONLY work with AT&T.

so my concerns is..if i am using T Mobile right now...it means I am doomed right? Even the new T mobile 4G(whatever they wanna call it) wont get me the right internet speed to blast the phone?

felixlaw11114 said:
so my concerns is..if i am using T Mobile right now...it means I am doomed right? Even the new T mobile 4G(whatever they wanna call it) wont get me the right internet speed to blast the phone?
Click to expand...
Click to collapse
att bought tmobile couple of weeks back , so ask if they are sharing the 3G frequencies now

alsaqr said:
att bought tmobile couple of weeks back , so ask if they are sharing the 3G frequencies now
Click to expand...
Click to collapse
I am not sure that went completely though. It is still hanging with no solution...

Nimche said:
I am not sure that went completely though. It is still hanging with no solution...
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Click to collapse
if i assume they are not sharing frequency..the only way for me to enjoy 3G/4G internet is to use AT&T?

felixlaw11114 said:
so my concerns is..if i am using T Mobile right now...it means I am doomed right? Even the new T mobile 4G(whatever they wanna call it) wont get me the right internet speed to blast the phone?
Click to expand...
Click to collapse
'4G' has nothing to do with any of this - that's just speed, it doesn't change which band T-Mobile use.
alsaqr said:
att bought tmobile couple of weeks back , so ask if they are sharing the 3G frequencies now
Click to expand...
Click to collapse
They're not.
The merger hasn't even been approved yet, let alone any sort of migration of customers.
If the merger is approved, you're talking anywhere from 1 year to 3 before you see any real-world differences like the ones you're suggesting.

...um...I am doom-ed then..
I read their press and their said the deal wont close until the end of the year

Assuming the regulators allow it to go ahead at all.
There are, rightly so, concerns about a single national GSM-based network and the knock-on effect that would have on competition.

seems like I got a smart phone that not gonna be that smart

augie7107 said:
T-Mobile also uses 2100
Click to expand...
Click to collapse
tmo uses 1700 downlink and 2100 uplink. phone must support both freqs to get 3G. LT15i does not support 1700, hence 3G will not work.

unlocking tmobile to use on att

i have a dvp on att, but the keyboard is broken. i also have a tmobile dvp. i got an unlock code and i am plannign to use it with my att sim.
im wondering tho, will my connection or signal be less than optimal on the att network?
anyone know?

I'm going to offer a preliminary response. Others please respond with more specifics.
Your new T-Mobile DVP's 3G band will be set to UMTS 1700/2100. AT&T's 3G band is UMTS 850/1900. Their highest shared standard is EDGE, which means you only get 2G speed
I've heard some buzzings that AT&T and T-Mobile DVP hardware is exactly the same, and possibly that changes made in the EM Engineering Mobile app, or a process or updating the phone using AT&T cabs will set the proper band selection. I would be interested to know more about this myself.
You may just want to swap the keyboard. Sounds easier to me.

Technosquid said:
I'm going to offer a preliminary response. Others please respond with more specifics.
Your new T-Mobile DVP's 3G band will be set to UMTS 1700/2100. AT&T's 3G band is UMTS 850/1900. Their highest shared standard is EDGE, which means you only get 2G speed
I've heard some buzzings that AT&T and T-Mobile DVP hardware is exactly the same, and possibly that changes made in the EM Engineering Mobile app, or a process or updating the phone using AT&T cabs will set the proper band selection. I would be interested to know more about this myself.
You may just want to swap the keyboard. Sounds easier to me.
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Click to collapse
yeah I think the buzzings were just all buzz peeps playing with the em app never could quite release them of their carrier frequency jail.. Seems like the dvp just cant dance the penta dance.
I second the keyboard swap! I posted the service manual just recently and the dvp shouldn't be too hard..

wow thanks for the guid3e!!! gonna try this asap.

asdffgjh said:
wow thanks for the guid3e!!! gonna try this asap.
Click to expand...
Click to collapse
It's not that much more work to get to the screen/glass... make sure to clean/seal it when you're in there too since the dust issue is so annoying. Ruins the sexiness of using it. And man I've never came across a DVP with no dust on the screen. Others might be luckier, but even my new DVP had (minor) dust after a couple of weeks. Sigh. Oh hey a cowboy emoticon
manual link again: http://forum.xda-developers.com/showpost.php?p=27641407&postcount=25

T Mobile Refarms, A 747 Blossoms

T Mobile's efforts to refarm it's 3g HSPA+ network to the 1900 mhz band will mean that the At&t i747 S3 will eventually be able to connect to T mobile HSPA speeds. This is a significant topic of discussion, especially since T Mobile and the i747 are represented in the same forum. Do T Mobile users here have any updates as to the progress the refarming effort has been having? Are markets popping up with the 1900 mhz HSPA for t mobile? I am thinking about returning my 747 because I want to use t mobile but am now learning that T mobile is modernizing all of its HSPA network with a band that my phone supports. The main reason is to pull iphone users but we will also benefit.

Well, there is the new spectrum on T-Mobile, but you'll also probably find out soon how compatible the hardware is between the two phones. The T-Mobile phone boots up as a M2_ATT (it doesn' even get it's own codename), and we can hope there are no antenna issues (would make sense from an economy of scale perspective).
Somebody clever and interested will be able to tell you soon how feasible it is to move between AT&T and T-Mobile modes on the same device.

Voltage Spike said:
Well, there is the new spectrum on T-Mobile, but you'll also probably find out soon how compatible the hardware is between the two phones. The T-Mobile phone boots up as a M2_ATT (it doesn' even get it's own codename), and we can hope there are no antenna issues (would make sense from an economy of scale perspective).
Somebody clever and interested will be able to tell you soon how feasible it is to move between AT&T and T-Mobile modes on the same device.
Click to expand...
Click to collapse
That's interesting, hadn't heard that yet. Still crossing my fingers. Radios have been flashed with no luck. But we shall see.

Sprint S 4 ve awill it have a GSM sim card for LTE like the HTC one?

Hey guys. Was just curious if anybody has information on whether the S4 will have the LTE sim card like the HTC one or will it have an embedded LTE card like the note 2? I ask because of my work, I live in NY for one month, and then in the caribbean for one month, and back and forth and back and forth. My current phone is the Photon 4G which has the international sim card slot in it, so its easy with that phone. Any help would be appreciated.

It has a sim card right next to the sd card slot behind the phone. Sim is removable as well, I heard rumors that sprint was going to weld it to the mothboard. But it pops in and out really easy.
Sent from my SPH-L720 using xda app-developers app

spawn11587 said:
Hey guys. Was just curious if anybody has information on whether the S4 will have the LTE sim card like the HTC one or will it have an embedded LTE card like the note 2? I ask because of my work, I live in NY for one month, and then in the caribbean for one month, and back and forth and back and forth. My current phone is the Photon 4G which has the international sim card slot in it, so its easy with that phone. Any help would be appreciated.
Click to expand...
Click to collapse
Yes it does have a removable SIM. See this thread: http://forum.xda-developers.com/showthread.php?t=2249385
May I ask which carrier do you use your Photon with in the Caribbean and on which Island? I ask this because the bands the One and S4 support are not exactly the same ones as the Photon does.

myphone12345 said:
Yes it does have a removable SIM. See this thread: http://forum.xda-developers.com/showthread.php?t=2249385
May I ask which carrier do you use your Photon with in the Caribbean and on which Island? I ask this because the bands the One and S4 support are not exactly the same ones as the Photon does.
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Click to collapse
Hey man, thank you for the reply.
I go to medical school on the island of Antigua, and currently have my Sprint/Motorola photon 4G with me and have had it since the beginning. I use the cell phone provider called LIME (or Cable and Wireless- depending on who talks about it, and it is GSM). LIME operates on 850 MHz band primarily and 1800 MHz in certain areas on the island, Will the sprint galaxy S4 work fine here?
There is another provider called DIGICEL which utilizes the 900 MHz band.

I am willing to bet that one of the devs here will find a way to unlock it for use in the states. Just a matter of time.
Sent from my SPH-L720 using xda app-developers app

spawn11587 said:
Hey man, thank you for the reply.
...
Will the sprint galaxy S4 work fine here?
...
Click to expand...
Click to collapse
That depends... Do those providers support 3G (UMTS/WCDMA/HSPA) or are they 2G only?

myphone12345 said:
That depends... Do those providers support 3G (UMTS/WCDMA/HSPA) or are they 2G only?
Click to expand...
Click to collapse
I would say its more of a 2G speed. But they advertise it as 3G

spawn11587 said:
I would say its more of a 2G speed. But they advertise it as 3G
Click to expand...
Click to collapse
The answer then is, maybe...
For some completely inexplicable reason, it appears that sprint has intentionally disabled the UMTS 850 MHz band on the S4 (and apparently HTC One too) for use worldwide (i.e., not just in the US as they normally do). This band is available in the a photon 4G though. So, if those carriers have deployed UMTS 850 (as many GSM 850 carriers across the world have) then you could very well have a problem, particularly with data speeds. The phone does not have support (disabled or otherwise) for UMTS 900 but neither did the Photon, plus, UMTS 900 tends to be a bit less deployed compared to UMTS 850 anyway. As I said in my the linked thread, I plan on starting a thread on this issue specifically at some point soon.
For 2G GSM the phone is fine though as it is quadband (like the Photon is). We're talking some painfully slow data speeds on 2G however. For 3G GSM, the phone does support UMTS 1900 and 2100.

myphone12345 said:
The answer then is, maybe...
For some completely inexplicable reason, it appears that sprint has intentionally disabled the UMTS 850 MHz band on the S4 (and apparently HTC One too) for use worldwide (i.e., not just in the US as they normally do). This band is available in the a photon 4G though. So, if those carriers have deployed UMTS 850 (as many GSM 850 carriers across the world have) then you could very well have a problem, particularly with data speeds. The phone does not have support (disabled or otherwise) for UMTS 900 but neither did the Photon, plus, UMTS 900 tends to be a bit less deployed compared to UMTS 850 anyway. As I said in my the linked thread, I plan on starting a thread on this issue specifically at some point soon.
For 2G GSM the phone is fine though as it is quadband (like the Photon is). We're talking some painfully slow data speeds on 2G however. For 3G GSM, the phone does support UMTS 1900 and 2100.
Click to expand...
Click to collapse
Is there anyway for me to determine with my photon what frequency the data is coming in on?

spawn11587 said:
Is there anyway for me to determine with my photon what frequency the data is coming in on?
Click to expand...
Click to collapse
Yeah, that's a problem because I believe Sprint disabled the field test menu (##778#) on the Photon. Also, I don't think the Android SDK provides that info to apps so you couldn't install the an app that will tell you that. You could install one of the many mobile network monitor apps on the play store which I would think at least would tell you if you are on GSM or UMTS/WCDMA/HSPA. If you are on UMTS on the Photon there then I'd say there's a good chance you're on 850. That is what LIME's "4G" service in the Bahamas runs on for example.
Anyhoo,let us know what you find out.
EDIT: I think the commonly used ookla "Speed Test" app will also tell you if you are on GSM or UMTS under location:network if you click on one of the test results in history. That migh be you best way of telling. You still won't be able to tell which frequency you're on unfortunately.

Called Lime...and the best they had for me was that they operate on GSM 850/1800/1900 MHz and GPRS data. Not sure if that helps. but I couldnt get any of the programs to function to show if the photon is GSM or UTMS
So I searched a bit for information and found that
LIME - GPRS,GSM - 2G:850 MHz.
According to here http://m2msupport.net/m2msupport/lime-antigua-and-barbuda-m2m-modules-certification-sim-data-plans/
So I am assuming that the S4 will work just like the photon, or am I wrong?

spawn11587 said:
Called Lime...and the best they had for me was that they operate on GSM 850/1800/1900 MHz and GPRS data. Not sure if that helps. but I couldnt get any of the programs to function to show if the photon is GSM or UTMS
So I searched a bit for information and found that
LIME - GPRS,GSM - 2G:850 MHz.
According to here http://m2msupport.net/m2msupport/lime-antigua-and-barbuda-m2m-modules-certification-sim-data-plans/
So I am assuming that the S4 will work just like the photon, or am I wrong?
Click to expand...
Click to collapse
Have you tried running Ookla speed test on their network with the Photon? It should tell you what network they are using in the results history if you click on the result of the test as per my previous message.
If they are truly just plain GSM 2G like what the above indicates then the S4 should be fine.

myphone12345 said:
Have you tried running Ookla speed test on their network with the Photon? It should tell you what network they are using in the results history if you click on the result of the test as per my previous message.
If they are truly just plain GSM 2G like what the above indicates then the S4 should be fine.
Click to expand...
Click to collapse
Sorry I forgot to mention that. Tried Speed Test / Ookla and all it says in the results history is EDGE, nothing else.

spawn11587 said:
Sorry I forgot to mention that. Tried Speed Test / Ookla and all it says in the results history is EDGE, nothing else.
Click to expand...
Click to collapse
If it says EDGE then you will be just fine with the S4.
---------- Post added at 02:52 PM ---------- Previous post was at 02:49 PM ----------
Oh, and I forgot to mention also, you will probably also need to get it unlocked. Unlike the photon, I don't think th S4 comes unlocked out of the box.

I think the info in this thread is inaccurate. The sprint s4 clearly supports 900 and I called and asked a sprint rep if it has a removeable sim and she said yes.

myphone12345 said:
If it says EDGE then you will be just fine with the S4.
---------- Post added at 02:52 PM ---------- Previous post was at 02:49 PM ----------
Oh, and I forgot to mention also, you will probably also need to get it unlocked. Unlike the photon, I don't think th S4 comes unlocked out of the box.
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Thank you greatly myphone12345. For it to be unlocked what has to be done? I read in another thread that I have to call sprint and they will do that for me. Ive been with sprint now for 10 years, so i doubt they would make me wait 90 days.

IamAnnoyed said:
I think the info in this thread is inaccurate. The sprint s4 clearly supports 900 and I called and asked a sprint rep if it has a removeable sim and she said yes.
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GSM 900 (GSM 2G) yes, but not UMTS 900 (GSM 3G, sometimes called "4G" by companies like T-Mobile USA). UMTS-1900 and 2100 are the only international 3G bands supported by the Sprint variant. That is contrary to most US devices that contain international support (including the Motorola Photon 4G), which usually tend to support at least a third 3G band, usually UMTS-850. It's the disabling of UMTS-850 on the S4 (leaving it with only two "high" 3G bands) that's the problem. UMTS-850 is widely deployed across the Americas, plus several other places around the world.
spawn11587 said:
Thank you greatly myphone12345. For it to be unlocked what has to be done? I read in another thread that I have to call sprint and they will do that for me. Ive been with sprint now for 10 years, so i doubt they would make me wait 90 days.
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Yes, you need to call Sprint. This inconsistency with the 90 days is strange. Seems like different CSRs apply the rule to how long you've owned the phone and some to how long your account has been open in good standing. In any case, even if they make you wait, you can always just keep using the Photon overseas and S4 in the 'States until they unlock the S4.
Anyway, Good luck with your studies! Can't think of a sweeter place to do it in.

Hello, guys.
Who looking to unlock own Samsung S4 Sprint - please send to me PM. I have one way which shall to be checked. I'm still don't havemy own Sprint's S4 on hands to check if this way will works