T-Mobile working on at&t s3 - T-Mobile, Samsung Galaxy SIII

So as the title states I need some help. I'm trying to get a phone and its an unlocked at&t s3 and I'm trying to figure out if it will work well on our T-Mobile carrier. Will I get 4g can I get SMS? Any help?
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Yes, I'm using one right now and I get "4g" and 4g LTE as well.. "4g" might not have as good coverage depending on your area because it will use the 1900 frequency T-Mobile has recently started to roll out instead of the 1700 that T-Mobile mainly has for 3g/hspa.. But LTE will work just fine, and it is fast! heck you will even get WiFi calling as long as you flash a T-Mobile based ROM
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serio22 said:
Yes, I'm using one right now and I get "4g" and 4g LTE as well.. "4g" might not have as good coverage depending on your area because it will use the 1900 frequency T-Mobile has recently started to roll out instead of the 1700 that T-Mobile mainly has for 3g/hspa.. But LTE will work just fine, and it is fast! heck you will even get WiFi calling as long as you flash a T-Mobile based ROM
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Can't you just flash a T-Mobile baseband? And also if it'd and at&t phone how can you flash a T-Mobile s3 ROM?
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No do NOT flash a T-Mobile baseband.. Only stick with at&t basebands or bootloaders.. The only thing you can safely flash is Roms and kernels.. You can flash roms through recovery and most should work just fine.. And BTW there actually is a mod on the at&t thread to enable the 1700 aws, but the mod wipes after a reboot and you must do it every time you reboot.. It doesn't sound that bad, so you might want to try it out if you end up getting it and have bad or no 3g/h with 1900 in your area
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So I can flash a T-Mobile s3 room
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Yes as he said you can flash roms and kernels nothing else.
And dont be confused and think a rom is equivalent to firmware. Its not.
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DocHoliday77 said:
Yes as he said you can flash roms and kernels nothing else.
And dont be confused and think a rom is equivalent to firmware. Its not.
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Well I know that I was just a little confused as to the way he worded it. So I've tried reading over their some but so far all I've come up with are old threads where people were trying to get 3g to work. Supposedly its permanent any idea how I can tell what frequency my location runs on
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I'm pretty sure there is. I think it may be a dialer code that you can use to go in and test to find out. Cant remember for sure, but thought I'd mention it in case it helps someone else answer or helps your search.
If you aren't able to find anything ill try to remember to look later tonight.
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If what I think this is says right here. https://t-mobile.jive-mobile.com/#jive-discussion?content=/api/core/v2/discussions/40516 and this says what I think.it says http://m.gsmarena.com/samsung_galaxy_s_iii_i747-4803.php with a at&t version I should be able to access tmobiles 4g and 4g late since its on the 2100 frequency
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Tmobiles hspa+42 and lte will be on the 1700 and 1900 bands. Not aware of tmob using 2100.
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DocHoliday77 said:
Tmobiles hspa+42 and lte will be on the 1700 and 1900 bands. Not aware of tmob using 2100.
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But doesn't the article say that they're moving 3g to 1900 and then 1700 will be for HSDPA+ and 2100 will be for lte
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My bad, you were right. I had things a bit mixed up I guess!
Sorry for the confusion.
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Though, they will only be able to offer hspa+42 on the aws spectrum I believe. And it'll only account for a small portion in the end.
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So basically they're expecting most phones to support lte. Does the s3 from at&t support was?
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skinzy98 said:
So basically they're expecting most phones to support lte. Does the s3 from at&t support was?
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*aws
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That I'm not sure about. I want to say it does, but I'm not confident enough to say for sure.
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these are the two threads i was able to find about it
http://forum.xda-developers.com/showthread.php?t=2344627
http://forum.xda-developers.com/showthread.php?t=1771021
the first one is the newest method and the one that won't stick after reboots.. the second one will downgrade the phone to ics, and people are saying that flashing a t999 recovery and then a tmo jb rom will still keep 1700 enabled but i haven't tried any of them

Well you guys thanks for the help. Now I just have to actually find a new phone
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Hey guys I'm back with another question about that thread you posted. For one (I've been reading about it but for now am totally co fused) I will be able to flash any of the ROMs by is right so if I do the second method I can still flash 4.2.2?
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serio22 said:
these are the two threads i was able to find about it
http://forum.xda-developers.com/showthread.php?t=2344627
http://forum.xda-developers.com/showthread.php?t=1771021
the first one is the newest method and the one that won't stick after reboots.. the second one will downgrade the phone to ics, and people are saying that flashing a t999 recovery and then a tmo jb rom will still keep 1700 enabled but i haven't tried any of them
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And also which method did you use personally to get T-Mobile service. If your getting 4g then I will be following your lead
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Related

settings-> mobile network -> network operators

Is there a way to unlock this setting?
Search the forums. There's a way around it.
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Golly thanks. Never would have thought of that. Any clues on which forums to search? The ATT forums pulled up nothing for me.
No way I've found around it.. don't know what he is talking about.
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Search "GSLEON APN Unlock" in AT&T Development. I'd post a link if I wasn't on my phone.
Edit: Scratch that. Can't find it in there anymore. I'll see if I can dig it up.
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Anyway if that is what you are talking about adding an non lte apn can be done but that is nit the same thing as unlocking it enabling manual network selection.
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Is it something in the SIM that locks it?
i would greatly appreciate if someone found it!
What are you guys trying to do with this? When I go through it seems to be unlocked I can choose att and T-Mobile and I'm on att network
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Where did you get the phone? I'm guessing from your sig you are rooted and running a non-ATT rom?
if you are talking to me i got my phone from att and i am using my att rom
smartguy044 said:
What are you guys trying to do with this? When I go through it seems to be unlocked I can choose att and T-Mobile and I'm on att network
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We are trying to switch lte off and use 3g and 4g only
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im pretty sure that menu has nothing to do with it itll be just as easy to change your apn settings.....have one that does lte and one that does 3g
Hes unlocked thats y
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JB calhoun said:
Hes unlocked thats y
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Is that all it takes? Coolio. What is the best way to unlock? Also, I'm not worried about LTE vs 4G , just carrier selection.
oh im not unlocked either phone is just rooted running my rom
Would unlocking get carrier selection working?
I'm not sure I have carrier selection and I'm not unlocked
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Just rub a little salt in the wound why doncha... lol. That is where I wanna be. I get into areas where the ATT signal is weak but present, and the phone will go on a roaming network. If I reboot it comes back up on ATT. Might have to go the root/rom route. Unless unlocking will get me there...

[ Q ] !!!! What's the best Radio for JB ROM? Anyone getting 4G?

I'm using an at&t galaxy s2 unlocked for use on T-Mobile with a very nice JB ROM and can't seem to find a suitable radio to get 4g speed.
I was using the blaze radio when I was on ICS ROMS and got very fast 4g speeds, however now I'm on JB, I would like to have back a 4g connection. I'm in the Atlanta area, and travel to Florida gulf coast area for business twice a week and really need a good connection on the road.
Anyone...
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wizard6498 said:
I'm using an at&t galaxy s2 unlocked for use on T-Mobile with a very nice JB ROM and can't seem to find a suitable radio to get 4g speed.
I was using the blaze radio when I was on ICS ROMS and got very fast 4g speeds, however now I'm on JB, I would like to have back a 4g connection. I'm in the Atlanta area, and travel to Florida gulf coast area for business twice a week and really need a good connection on the road.
Anyone...
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Your in the wrong section my nig... Go to q&a before scorpion does his fatality on you
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v3rsatile23 said:
Your in the wrong section my nig... Go to q&a before scorpion does his fatality on you
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For some reason, this made me laugh SO HARD. Bravo, sir :thumbup:
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Thanks... but I desperately need help, and was hoping to get an answer here
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wizard6498 said:
Thanks... but I desperately need help, and was hoping to get an answer here
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No bro, this is for development ONLY. You have a question , go to Q&A. Pm a mod to move it.
Sent from Darkside CM Goodness
You are using a skyrocket on T-Mobile. Are you looking for lte or T-Mobile hspa+? T-Mobile does not have lte yet. Doesn't matter what radio you use that works with the skyrocket you'll never get lte on T-Mobile.
davwman said:
You are using a skyrocket on T-Mobile. Are you looking for lte or T-Mobile hspa+? T-Mobile does not have lte yet. Doesn't matter what radio you use that works with the skyrocket you'll never get lte on T-Mobile.
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funny....but I've been getting 4g when using ICS ROMS on the same phone on T-Mobile, as a matter of fact, I've never used this phone on at&t
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Are you asking about 4glte or 3g+ what T-Mobile refers to as 4g?
ooops
Usually on unlocked phones using a different carrier you only get edge.. your lucky if you even got 3g
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v3rsatile23 said:
Usually on unlocked phones using a different carrier you only get edge.. your lucky if you even got 3g
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Well this is wrong. A lot of the new quad and penta bands gets 3g+ on any network.
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davwman said:
Are you asking about 4glte or 3g+ what T-Mobile refers to as 4g?
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Ok, I really just need to know what radios are available, and where I can find them, and I'll try to see which one works best for me in my area.... maybe I'd just go back to ICS and the blaze radio, and be done with it, cause I seem to be getting nowhere with this 3g 4g lte, conversation, beginning to feel sorry that I asked
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Will S3 work on 1700/2100?

From what I'm reading it looks like the Rogers s3 will work on 1700/2100 frequency, is this true? How would I go about doing this?
Get on a carrier that uses those frequencies I would imagine
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You're the one reading, is it true? Does it work on those frequencies?
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Swaggernaut said:
You're the one reading, is it true? Does it work on those frequencies?
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Lol, okay, I mean't like do I need to flash a modem, or will it work if I just unlock it. The question was pretty simple if it works on 1700/2100 and if it does do I need to flash a kernal or do I just unlock it.
so will the telus, rogers, bell or at&t work on 1700/2100 frequency via flash or?
Rogers sgs3 uses those frequencies for lte only.
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Is the AT&T Note 2's "Radio Chipset" capable of 42mbps?

Is it?
Saw this on another thread.
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Looks like AT&T's LTE. But can an AT&T Note 2 work on T-Mobile's 42mbps data connection? T-Mobile doesn't have LTE, yet.
UrbanLagoon said:
Saw this on another thread.
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No clue at all. Sorry to dissapoint.
winlinmac001 said:
Is it?
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In other words you're wondering if it's like the skyrocket, which the radio supported LTE but also had dual channel HSPA (21x2, hence your 42Mbps). All you had to do was switch modems...
Would be interesting to actually know... On way to a wake, don't feel like looking it up now...
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On AT&T, no. Also http://forum.xda-developers.com/showthread.php?t=2068041
Yes.
Im on At&t im stock and I got that top result in an lte area. *edit*Misunderstood your question. Im on Att with an att note 2.
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(Q) best tmobile rom

Anyone know the best kernel, rom and modem to have for tmobile on the 317. I already am running cr 4.9 and saberkern on it.
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The one that you like the best... And this will probably be closed.
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Was ttying to get peoples opinion but thanx anyway
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I understood you I guess I posted this the wrong way I was just wanting to know who had what rom that works best with tmobile on the i317.
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Imo you're already running the best rom/kernel. If you don't think it's awesome then try something else.
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On the same topic, can I get T-Mobile 4G on my 317? I didn't realize there might be a difference when I bought it. I haven't received my SIM yet, so can't test it. If I can't get 4G though, I'm going to have to sell this one and get a T-Mobile branded device.
I do think it is awsome. I was trying to get everyones opinion.
Sent from my SAMSUNG-SGH-I317
Mach you can enable aws on the 317 to get tmobile bands which will enable you to get 3g and 4g
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flip69zz said:
Mach you can enable aws on the 317 to get tmobile bands which will enable you to get 3g and 4g
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Will do. Probably flash this thing to the ROM you are using. Does that ROM allow for wifi hotspot?
Yes it does I havent tried it yet but it is there im using cleanrom 4.9 with saber kern and updated modem
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