Develop Bugs

Can i get Tmobile 3G/4G working on Unlocked ATT

I got a ATT S3 a Gift but i am on tmobile network, i was wondering if i can unlock it and use it Tmobile Nework along with Tmobile 4G, Is it possible if i flash the tmobile radios from Galaxy Note forum ?

vikramdhani said:
I got a ATT S3 a Gift but i am on tmobile network, i was wondering if i can unlock it and use it Tmobile Nework along with Tmobile 4G, Is it possible if i flash the tmobile radios from Galaxy Note forum ?
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No. Only edge network will work. 3g and 4g work on completely different spectrum and radio frequency
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If that was true the galaxy note from att wouldn't get T-Mobile 4 g which it does when flashing a blaze 4g modem I also want to know if this will work on the att s3
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Yes it does I have it working on my father in laws note
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That may be true about the Note 2, but an ATT S3 does not have the T-Mobile 3/4G frequencies.

GTWalling said:
That may be true about the Note 2, but an ATT S3 does not have the T-Mobile 3/4G frequencies.
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Yes this guys right. Take a look for yourself:
ATT Galaxy Note Specs
T-Mobile Galaxy S3 Specs
ATT Galaxy S3 Specs
Notice how the Note and the T-Mobile Galaxy S3 have that 1700 Mhz frequency? Thats what T-Mobile broadcasts their 3G/4G spectrum on. If the phone doesnt have those frequencies, then it wont work no matter what you do.

horr1blek1tten said:
If that was true the galaxy note from att wouldn't get T-Mobile 4 g which it does when flashing a blaze 4g modem I also want to know if this will work on the att s3
Sent from my Nexus 7 using Tapatalk 2
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That's different. It is a whole different phone with a whole different SoC.
Let's not say things that we cannot prove.

Don't shoot this guy completely down. It will get T-Mobile 3g/4g as soon as T-Mobile refarms their network.
Sent from my SGH-T999 using Tapatalk 2

Some of my friends are getting 4g on their unlock at&t s3 with tmobile
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JUSMEJOSE said:
Some of my friends are getting 4g on their unlock at&t s3 with tmobile
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Yeah, because they live in one of the small parts of the US that uses the 1900mhz band for HSPA. It will not work everywhere else.
Sent from my SGH-T999

What about the other way? A T-Mo SGS3 on AT&T? What does that get you? I know NO LTE but what about HSPA+ ?

MisterEdF said:
What about the other way? A T-Mo SGS3 on AT&T? What does that get you? I know NO LTE but what about HSPA+ ?
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Yes, HSPA+ will be fine. But as you said, no LTE.

T-Mobile / Simple Mobile / Galaxy S3 ?

Until recently I have been with Sprint. And I am located in South Florida.
I am considering going with Simple Mobile as I'm told that T-Mobile has one of the best data speeds in this area. And I want to get a Galaxy S3 as the phone to use with this service.
Can anyone here advise as to whether this would work with Simple Mobile (I called them but they won't say anything only that they don't don't support it - meaning they don't sell it so don't bother them), at what speeds?
I also assume that I must get the T-Mobile version of this phone. That seems quite difficult unless I want to pay a big premium to T-Mobile, who charges much more than say AT&T for their version. So if anyone has any suggestions where I can get one (I would prefer a store, not eBay)?
Thanks

try the xda marketplace
edit: nvm just saw you dont have enough posts.

I read that the Sprint variant of the S3 would work on T-Mobile. You just have to unlock the phone I believe.
Sent from my S3

I remember negri sells the phone for $599 unlocked. That's the cheapest I've seen for the TMobile version. It's not cheaper by much but it's unlocked and you may save on taxes.
http://negrielectronics.com/catalogsearch/result/?q=t999#.UDfVdr3n_Fo
Sent from my SPH-L710 using Tapatalk 2

AttachedSilver said:
I read that the Sprint variant of the S3 would work on T-Mobile. You just have to unlock the phone I believe.
Sent from my S3
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Sprint is cdma and T-Mobile is GSM. How are you going to stick a sim card in that sprint phone?
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My wife is using it on Simple Mobile. It works great.

Simple Mobile is a Mvno of t-mobile so you don't need to have an unlocked T999. Just change the apn. A's far as speeds. I live in Central Florida and I get the same speeds as t-mobile. I recommended. As far as where to buy the phone. I went to t-mobile and paid $599 for it. Haven't really seen it cheaper.
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brooksyx said:
Sprint is cdma and T-Mobile is GSM. How are you going to stick a sim card in that sprint phone?
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It's a world phone, my friends HTC Rezound is on Verizon which is CDMA but works on ATT
Sent from my S3

AttachedSilver said:
It's a world phone, my friends HTC Rezound is on Verizon which is CDMA but works on ATT
Sent from my S3
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The Sprint version does not have the AWS bands that T-Mobile requires.

joshnichols189 said:
The Sprint version does not have the AWS bands that T-Mobile requires.
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Not to mention the Sprint sim slot is sealed and inaccessible.

AttachedSilver said:
It's a world phone, my friends HTC Rezound is on Verizon which is CDMA but works on ATT
Sent from my S3
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You didn't answer my question, how are you going to put a sim card in it. The sprint galaxy siii does not have a sim slot...
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Also for Data?
Will it work for all the difference data protocols, and 2G, 3G, 4G?
AttachedSilver said:
I read that the Sprint variant of the S3 would work on T-Mobile. You just have to unlock the phone I believe.
Sent from my S3
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Which phone is she using?
What plan (40, 50, 60) does she have? What data speeds is she getting?
tengtengvn said:
My wife is using it on Simple Mobile. It works great.
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sun365 said:
Will it work for all the difference data protocols, and 2G, 3G, 4G?
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No. It doesn't have the AWS bands that T-Mobile requires. And they don't have "4G".
Sent from my SGH-T999

brooksyx said:
You didn't answer my question, how are you going to put a sim card in it. The sprint galaxy siii does not have a sim slot...
Sent from my SPH-D710 using xda app-developers app
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It does have a sim slot but it's not user accessible.
It's hidden behind the plastic under the battery.
Sprint has taken this approach with all there LTE devices.
The only exception may be the Photon Q since it's touted as being a global device.

five40 said:
It does have a sim slot but it's not user accessible.
It's hidden behind the plastic under the battery.
Sprint has taken this approach with all there LTE devices.
The only exception may be the Photon Q since it's touted as being a global device.
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There is no sim slot. There is an embedded lte chip in there but no slot.
Sent from my SPH-L710 using Tapatalk 2

tengtengvn said:
My wife is using it on Simple Mobile. It works great.
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So she did get 4G from simple mobile or only edge speed?
Also did she get MMS problem? I saw someone open a thread says he have MMS issue. (http://forum.xda-developers.com/showthread.php?t=1791451)

T-Mobile Note 2 on At&t LTE??

Hey guys! I just got my Galaxy Note 2 today and i am already ready to mess with it.
I was looking around and saw some threads saying that T-Mobile and At&t versions of the Galaxy Note 2 have the same LTE band and frequencies. And that you could run a T-Mobile GN2 on At&t LTE...since T-mobile doesnt have it just yet.
I am currently on T-Mobile with a t-mobile SIM. I am curious to if I flash an ATT modem/radio to my T-Mobile GN2 would that give me the ATT lte capabilities?
I don't want to jump the gun and brick my phone the first day i got it lol.

No that doesnt work...no one has gotten it to work yet. But one member is getting an update from tmo for their lte and is gonna upload a backup so the devs can hopefully turn on lte on the phones so when tmo turns on there towers we will get lte
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Nolenm04 said:
No that doesnt work...no one has gotten it to work yet. But one member is getting an update from tmo for their lte and is gonna upload a backup so the devs can hopefully turn on lte on the phones so when tmo turns on there towers we will get lte
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OK sounds good I am still doing a little bit of searching and found this: http://forum.xda-developers.com/showthread.php?t=2072637

My wife has T-Mobile note 2 unlocked on att sim she gets 4g all day every day it supports 4g icon if that tells you anything.
It Doesn't say lte but says 4g and fast as he**
If you unlock the note 2 via hidden diale menu and throw in att sim, its 4g immediately no APN configuration needed
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lojak29 said:
My wife has T-Mobile note 2 unlocked on att sim she gets 4g all day every day it supports 4g icon if that tells you anything.
It Doesn't say lte but says 4g and fast as he**
If you unlock the note 2 via hidden diale menu and throw in att sim, its 4g immediately no APN configuration needed
Sent from my SGH-I317 using xda app-developers app
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Yeah thats hspa+ not lte
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lojak29 said:
My wife has T-Mobile note 2 unlocked on att sim she gets 4g all day every day it supports 4g icon if that tells you anything.
It Doesn't say lte but says 4g and fast as he**
If you unlock the note 2 via hidden diale menu and throw in att sim, its 4g immediately no APN configuration needed
Sent from my SGH-I317 using xda app-developers app
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I will be using a T-Mobile SIM so that is out of the question. But thanks for the information

ATT Note 2 work on Straight Talk ?

Was at Worst Buy today, they said would price match any online price for the Note 2, plus offer me free insurance if broken, or any issues.
I was gonna get the true international Note 2, but worried if it has issued or warranty problems, it would be much easier to just go back to Best Buy than to have to mail it off, out of the country.
So, that being said, I am on Straight Talk, I hate being raped by the carriers and handcuffed into outdated contract system. Would the ATT Note 2 work on my Straight Talk SIM ? Or does the phone need to be unlocked first ?
I never unlocked a phone before. But I always root and install custom ROM the first day I take phone out of the box. Does rooting a phone, automatically unlock it too ?
And how bout HSPA+ ? Straight Talk doesn't do LTE yet, just HSPA+ I know the ATT Note 2 is LTE, but does it also have HSPA+ too, or just slower 3G ?
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You would have to unlock it, either buy scrounging a code or going to the carrier and asking for one. Rooting doesn't automatically unlock the device. As far as 4G I really dunno, but I'm sure someone will tell you.
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I believe you only need to buy the att version of the straight talk sim. No need to unlock. Then you go on their web site and get the APN.
Sent from my GT-N7105 using xda premium

Thanks, so I am currently using the ATT SIM on Straight Talk. Just pop that in the new Note 2, and it will work right out of the box ?
What about HSPA+ ? Straight Talk doesn't have LTE. Does the ATT Note 2 have HSPA+ 3G besides LTE ?
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Zorachus said:
Thanks, so I am currently using the ATT SIM on Straight Talk. Just pop that in the new Note 2, and it will work right out of the box ?
What about HSPA+ ? Straight Talk doesn't have LTE. Does the ATT Note 2 have HSPA+ 3G besides LTE ?
Sent from my HTC One X using xda premium
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It is not the sim from att. Its a straight talk sim made for att phones. You have to order them online. It uses att network and you would get everything except lte.
https://www.straighttalk.com/ShopSims is where you order the sim and there is more info on the service on the site.
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meleii said:
It is not the sim from att. Its a straight talk sim made for att phones. You have to order them online. It uses att network and you would get everything except lte.
https://www.straighttalk.com/ShopSims is where you order the sim and there is more info on the service on the site.
Sent from my GT-N7105 using xda premium
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On my international One X, I am using Straight Talk with the ATT SIM. In the Straight Talk package, there were three sims to choose from. T-Mobile, and two ATT, one regular size, and one micro/mini, which is what I am currently using.
So can I just take this mini ATT SIM from Straight Talk, and pop it in the ATT Note 2 from Best Buy, and it will work ? I don't need to have the phone unlocked ?
Thank you
Sent from my HTC One X using xda premium

Zorachus said:
On my international One X, I am using Straight Talk with the ATT SIM. In the Straight Talk package, there were three sims to choose from. T-Mobile, and two ATT, one regular size, and one micro/mini, which is what I am currently using.
So can I just take this mini ATT SIM from Straight Talk, and pop it in the ATT Note 2 from Best Buy, and it will work ? I don't need to have the phone unlocked ?
Thank you
Sent from my HTC One X using xda premium
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Yep. It will work right out of the box.
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Thanks Mel. What about HSPA+ ? Straight Talk only does HSPA+ no LTE. Does the Note 2 also use HSPA+ if not using LTE ?
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Zorachus said:
Thanks Mel. What about HSPA+ ? Straight Talk only does HSPA+ no LTE. Does the Note 2 also use HSPA+ if not using LTE ?
Sent from my HTC One X using xda premium
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Its already been answered and yes ITS BEEN A LONG time since ive even seen a UMTS on my phone. and also HSPA+ is still 3G.... Straight talk Uses Edge,3G, and 3.5G which is HSPA+
Also if the Note 2 only used LTE then people would not be buying it cause not all AT&T areas are LTE...

I am more than happy with 3.5G HSPA+, plenty fast for my phone needs, I just wasn't sure it was included in the Note 2, for some reason I thought was just standard 3G only and also LTE.
Most the time I am in a WiFi area anyways, at Home or Work Office, so LTE not a deal breaker for me.
Thank you
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hyelton said:
Its already been answered and yes ITS BEEN A LONG time since ive even seen a UMTS on my phone. and also HSPA+ is still 3G.... Straight talk Uses Edge,3G, and 3.5G which is HSPA+
Also if the Note 2 only used LTE then people would not be buying it cause not all AT&T areas are LTE...
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Good point, thanks for the answer.
Last question, since I am using the ATT Sim for Straight Talk, is there even any point to have the ATT Note 2 unlocked ?

Zorachus said:
Good point, thanks for the answer.
Last question, since I am using the ATT Sim for Straight Talk, is there even any point to have the ATT Note 2 unlocked ?
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I would, just in case your are in area where there is no at&t service and are on the Edge network. Not only that but unlocking is free!!!

AT&T s4 on Tmobile

I am looking to buy s4 but can't find Tmobile variant at cheaper price than compare to att version. I live in Chicago where I guess Tmobile has switched on the 1900 band. I think? If I were to purchase the att version would I get the same data speed as I would with Tmobile version. 4g or lte ? Please advise.
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theghazi said:
I am looking to buy s4 but can't find Tmobile variant at cheaper price than compare to att version. I live in Chicago where I guess Tmobile has switched on the 1900 band. I think? If I were to purchase the att version would I get the same data speed as I would with Tmobile version. 4g or lte ? Please advise.
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you won't get lte but if your at a1900 band area you should haspa
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That's assuming you can even unlock it. I tried the other day and AT&T said that samsung hadn't provided the unlock codes yet.

kevroc said:
That's assuming you can even unlock it. I tried the other day and AT&T said that samsung hadn't provided the unlock codes yet.
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Oh ya providing unlocking for sure.
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