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I've got an unlocked AT&T Galaxy SIII, and I only get Edge for my data connection. Do I need to flash a T-Mobile radio? APN settings look okay, as far as I can see.
Also, can I flash a T-Mobile ROM and use Wifi calling, or is that asking too much?
I searched and couldn't find anyone asking these questions in the Q&A forum....
there are already like 3 threads below this one concerning the 3g/4g topic on a att sg3 working on tmobile. No it will not work because att sg3 does not support the aws tmobile frequencies. you will only be able to get edge. NOW if it were a tmobile sg3 on att then it would work.
All the threads I could find in this form on my search went the other way: T-Mo phone on AT&T.
Does anyone actually know whether a T-Mobile modem on an AT&T phone would work or not? I looked at the main board in my phone, and it's labelled with both SGH-I747 and SGH-T999, which makes me think the internals are fully identical.
I'd like to know this too! I also have an AT&T Galaxy SIII and was seriously considering moving to T-Mobile because of the new unlimited data plan they were going to start offering on 9/5. I had also looked through this forum, and could only find questions of the situation the other way around, T-Mob GSIII phone on AT&T network.
Basically, was wondering:
- is there a hardware limitation that APN settings and/or installing a new modem will not get me good data speeds?
- would I need to burn a new modem?
- I'm assuming at minimum I'd need new APN settings, and am assuming T-Mobile would be able to help with that. Right?
Thanks, really interested in being able to do this!
---------- Post added at 03:00 PM ---------- Previous post was at 02:13 PM ----------
Hey oblib - looks like there's an unfortunate hardware limitation we won't be able to get around: http://forum.xda-developers.com/showthread.php?t=1771021
oblib__ said:
All the threads I could find in this form on my search went the other way: T-Mo phone on AT&T.
Does anyone actually know whether a T-Mobile modem on an AT&T phone would work or not? I looked at the main board in my phone, and it's labelled with both SGH-I747 and SGH-T999, which makes me think the internals are fully identical.
Click to expand...
Click to collapse
Where did you see that the boards were labelled the same?
AFAIK, the radio's are different and flashing a T-mobile modem could possibly brick your device. It would be much easier to buy a T999 and use it on T-Mobile (it'll even work on AT&T 3G if you want to switch back, no LTE though).
The SoCs are different. Flashing a T-Mobile modem will not give you T-Mobile HSPA.
Looks like I didn't take any pictures of that side of the phone while I had it open, and I'm not eager to pop it open again. It definitely listed both models on the PCB. If I'm remembering correctly, it's on the same side as the SIM and SD card slots, so it's just matter of removing the back plate to see it, no more disassembly than that.
joshnichols189 said:
The SoCs are different. Flashing a T-Mobile modem will not give you T-Mobile HSPA.
Click to expand...
Click to collapse
Do you have part numbers for the two? According to wikipedia, they are the same Snapdragon S4 MSM8960. I just find it hard to believe that they would be different, though if they have the same pinout, that would explain the markings on my PCB.
This has been rehashed countless times. They are not the same phone. If the phones were the same, people would not be in here asking if they were the same. The MSM8960 comes in more than one flavor, with different modem parts. Yes, the CPU's are the same, but the MODEMS ARE DIFFERENT. It is an S4 Qualcomm part that comes in many different configurations. Instead of just reading until you get to some information that reinforces your preconceived notion, try reading a little further into the links at the bottom of the page and elsewhere. Seriously, if you really really don't think that Qualcomm would make different versions of the same chip, or configure them differently for the hundreds of different customer requirements, then fine, don't believe me, but it defies logic. Sorry about being an ass.
oblib__ said:
Looks like I didn't take any pictures of that side of the phone while I had it open, and I'm not eager to pop it open again. It definitely listed both models on the PCB. If I'm remembering correctly, it's on the same side as the SIM and SD card slots, so it's just matter of removing the back plate to see it, no more disassembly than that.
Do you have part numbers for the two? According to wikipedia, they are the same Snapdragon S4 MSM8960. I just find it hard to believe that they would be different, though if they have the same pinout, that would explain the markings on my PCB.
Click to expand...
Click to collapse
The T-Mobile version uses an MSM8260a. This SoC is the Krait with an adreno 225 GPU and no LTE. The MSM8960 has all three.
Sent from my SGH-T999
joshnichols189 said:
The T-Mobile version uses an MSM8260a. This SoC is the Krait with an adreno 225 GPU and no LTE. The MSM8960 has all three.
Sent from my SGH-T999
Click to expand...
Click to collapse
Thanks for the useful response. For those looking for even more detail, here's a link: http://www.qualcomm.com/sites/default/files/common/snapdragon-specs-06.07.12.pdf
According to that the MSM8960 (chip in I747?) has a "World Mode" modem, while the MSM8260a has a UMTS modem.
Edit: Ah, and I see both of you have answered this question before, which I would have found if I searched on MSM8260a. The threads have been dead for over a week, so I'm not surprised I missed them, but thanks for answering the same questions again.
T-Mobile HSPA not support i747 right now.
oblib__ said:
I've got an unlocked AT&T Galaxy SIII, and I only get Edge for my data connection. Do I need to flash a T-Mobile radio? APN settings look okay, as far as I can see.
Also, can I flash a T-Mobile ROM and use Wifi calling, or is that asking too much?
I searched and couldn't find anyone asking these questions in the Q&A forum....
Click to expand...
Click to collapse
T-Mobile uses a frequency for their 3g and 4g network that only T-Mobile branded phones have. Any other GSM phone will never get 3g or 4g on T-Mobile network unless it supports the T-Mobile band, which I believe is 1700MHz. It's limited by hardware. Nothing you can do to the phone will give you the 3g/4g you have to have a T-Mobile branded device.
Sent from my SGH-T999 using Tapatalk 2
elesbb said:
T-Mobile uses a frequency for their 3g and 4g network that only T-Mobile branded phones have. Any other GSM phone will never get 3g or 4g on T-Mobile network unless it supports the T-Mobile band, which I believe is 1700MHz. It's limited by hardware. Nothing you can do to the phone will give you the 3g/4g you have to have a T-Mobile branded device.
Sent from my SGH-T999 using Tapatalk 2
Click to expand...
Click to collapse
Not completely true. Since The Galaxy SII and the Galaxy Note (AT&T) have software radios, you can flash a radio from the TMO GSII and get 4G on TMO. I was running mine and many customers of mine like that for months until i switched phones.
Making your AT&T i747 GS3 work on T-Mobile 4G (without rooting)
oblib__ said:
I've got an unlocked AT&T Galaxy SIII, and I only get Edge for my data connection. Do I need to flash a T-Mobile radio? APN settings look okay, as far as I can see.
Also, can I flash a T-Mobile ROM and use Wifi calling, or is that asking too much?
I searched and couldn't find anyone asking these questions in the Q&A forum....
Click to expand...
Click to collapse
It works fine for me, the area i'm in does not support 4G on the 1900MHz frequency so I can definitely confirm my stock non-rooted AT&T i747 galaxy SIII is working on T-Mobile USA's 4G data network. I've uploaded a video to youtube of how to get this to work, should also work for the AT&T i317 note II as well. I can't post links on here I guess so just type my youtube username and search my videos.
youtube username: 6italia0
Video title: How to get AT&T gs3 i747 to work with Tmobile 4G (no root!)
6italia0 said:
It works fine for me, the area i'm in does not support 4G on the 1900MHz frequency so I can definitely confirm my stock non-rooted AT&T i747 galaxy SIII is working on T-Mobile USA's 4G data network. I've uploaded a video to youtube of how to get this to work, should also work for the AT&T i317 note II as well. I can't post links on here I guess so just type my youtube username and search my videos.
youtube username: 6italia0
Video title: How to get AT&T gs3 i747 to work with Tmobile 4G (no root!)
Click to expand...
Click to collapse
I think you just got it to work because T-Mobile launched 1900Mhz 4G starting 2013?
doutlaw said:
I think you just got it to work because T-Mobile launched 1900Mhz 4G starting 2013?
Click to expand...
Click to collapse
ive got a friend whos got this working, im gonna try and let you know!
I just picked up a t-mobile sim on ebay for a florida trip in a few weeks. Im hoping to get the $3 a day plan for my unlocked Galaxy s3 and hoping to get 1900mhz 4g service.
Sent from my SGH-I747M using Tapatalk 2
Same with the s2 flash an tmobile radio combo on the skyrocket and get 4g but with the s3 might be different
Sent from my SGH-T999 using xda app-developers app
IT CAN WORK (see details!)
elesbb said:
T-Mobile uses a frequency for their 3g and 4g network that only T-Mobile branded phones have. Any other GSM phone will never get 3g or 4g on T-Mobile network unless it supports the T-Mobile band, which I believe is 1700MHz. It's limited by hardware. Nothing you can do to the phone will give you the 3g/4g you have to have a T-Mobile branded device.
Sent from my SGH-T999 using Tapatalk 2
Click to expand...
Click to collapse
This is NOT TRUE, please be careful when making such "absolute" statements -- I just got a ATT i747 from craigslist, and it DOES work with the $30 Walmart plan - on 4G and LTE (depending on location).
The TRUE ANSWER IS -- IT DEPENDS -- if you live in an area that was recently upgraded to LTE (in my area was 02/13), you can get LTE/4G since t-mobile added support for it on 700 MHz (band 4) AWS (unverified - source: youtube video named "Tmobile 4G on att i747 gs3 data fix". Sorry I am not allowed to post web-links yet).
Anyway, I DO get 4G/LTE, I guess I was lucky
momchi said:
This is NOT TRUE, please be careful when making such "absolute" statements -- I just got a ATT i747 from craigslist, and it DOES work with the $30 Walmart plan - on 4G and LTE (depending on location).
The TRUE ANSWER IS -- IT DEPENDS -- if you live in an area that was recently upgraded to LTE (in my area was 02/13), you can get LTE/4G since t-mobile added support for it on 700 MHz (band 4) AWS (unverified - source: youtube video named "Tmobile 4G on att i747 gs3 data fix". Sorry I am not allowed to post web-links yet).
Anyway, I DO get 4G/LTE, I guess I was lucky
Click to expand...
Click to collapse
You do realize you resurrected an old thread, and responded to a post that was made a year ago??? Long before LTE rolled out. At the time of his post, he was 100% correct.
I dont think this is the intended way to get your 10 posts btw. There are plenty of recent issues to respond to. Thx.
Sent from my SGH-T999 using xda premium
Hello,
I have Galaxy II with Tmobile data plan. 4G speed connection is great.
I just switched the phone to Galaxy III 9300 international version, which is a gift from my brother... I mananged to cut the current tmobile sim card smaller and put in the 9300. I am able to make the call, but cannot enable the 4G data connection.
Just wonder will 9300 version will work with tmobile 4g network. should I need to upgrade or flash Tmobile flavor Android ROM to 9300 to get 4G network with tmobile?
Thanks
NO! The hardware between the international version and the US variants is different. Flashing the TMO rom will brick your device. The only GS3 version that will work with TMO 4G is the T999, which is the TMO version. It is the only one that supports the 1700 MHz frequency that TMO uses for HSPA
DONT DO IT!!!!!!!
sent via galaxy s3 in boss mode @ 2.1ghz
Omg....please for your phones sake do not do this. If u wanted 4g data u shouldnt have got an international gs3 if they refarm the 1900 mhz band where u live soon u will be in luck with 3g. But until then u are stuck on edge. Read up some more to dont go flashing anything that isnt for your phone
Not a chance. You'll have to wait for T-Mobile to roll out 1900mhz towers if you want 4G on that phone.
OH GOD.. I am in luck.... I live in Atlanta area and I just checked out I9300 international phone speed... I see H+ and 3G signal indicator in my phone. I did not see it when I was inside the house... I did speed test and 5 MB up, 1MB down... So I will keep i9300 with me...
alpharetta said:
OH GOD.. I am in luck.... I live in Atlanta area and I just checked out I9300 international phone speed... I see H+ and 3G signal indicator in my phone. I did not see it when I was inside the house... I did speed test and 5 MB up, 1MB down... So I will keep i9300 with me...
Click to expand...
Click to collapse
Thank God
alpharetta said:
Hello,
I have Galaxy II with Tmobile data plan. 4G speed connection is great.
I just switched the phone to Galaxy III 9300 international version, which is a gift from my brother... I mananged to cut the current tmobile sim card smaller and put in the 9300. I am able to make the call, but cannot enable the 4G data connection.
Just wonder will 9300 version will work with tmobile 4g network. should I need to upgrade or flash Tmobile flavor Android ROM to 9300 to get 4G network with tmobile?
Thanks
Click to expand...
Click to collapse
Sure you can flash but your phone will be useless after that
All I'd need to do is just flash at&t device specific roms right? I shouldn't need to flash flash t-mobile modems would I?
n1nj4Lo said:
All I'd need to do is just flash at&t device specific roms right? I shouldn't need to flash flash t-mobile modems would I?
Click to expand...
Click to collapse
you will be able to make phone calls and text people no problem.
the only problem you will have is going to be data connectivity and data speeds because the NOTE2 for AT&T is meant to be used with AT&T LTE.
T mobile's main data band is 1700 which the AT&T phones usually do not have.
To answer your baseband or modem question I believe this thread does not have a modem or baseband for T mobile. You might have luck looking over at their forums, I am not sure.
Good luck to you sir.
chousayz said:
you will be able to make phone calls and text people no problem.
the only problem you will have is going to be data connectivity and data speeds because the NOTE2 for AT&T is meant to be used with AT&T LTE.
T mobile's main data band is 1700 which the AT&T phones usually do not have.
To answer your baseband or modem question I believe this thread does not have a modem or baseband for T mobile. You might have luck looking over at their forums, I am not sure.
Good luck to you sir.
Click to expand...
Click to collapse
Hrmm the good news is T-Mobile told me they'd have LTE Coverage in April. I wonder if that'll change anything then for me?
I have a Dell Streak 5 on T-Mobile, don't have any problems.
n1nj4Lo said:
Hrmm the good news is T-Mobile told me they'd have LTE Coverage in April. I wonder if that'll change anything then for me?
I have a Dell Streak 5 on T-Mobile, don't have any problems.
Click to expand...
Click to collapse
Again. Different frequencies and you'll still be on edge
Sent from my Pink Unicorn stable
n1nj4Lo said:
Hrmm the good news is T-Mobile told me they'd have LTE Coverage in April. I wonder if that'll change anything then for me?
I have a Dell Streak 5 on T-Mobile, don't have any problems.
Click to expand...
Click to collapse
The Dell Streak 5 is like the Nexus 4 it has all the HSPA bands. The LTE band for T mobile most likely will be different from AT&T. You can try to unlock it and compare the coverage and speed to your dell streak. I had a dell streak. Great phone!! sold it about a month ago for like 180 bucks.
My suggestion if the unlocked AT&T Note 2 isnt working properly and you want to stay with T MOBILE I would sell it and get the international version.
What you need to is search for how to "enable aws" and you will have 4g working on your device.
Sent from my SGH-I317 using xda premium
Found this, I'll be trying it tomorrow when my phone arrives:
How to Enable T-Mobile 3G/4G AWS Bands on AT&T Galaxy Note 2 SGH-i317!
Yea but you still won't have lte
Sent from my GT-N7105 using xda premium
hyelton said:
Yea but you still won't have lte
Sent from my GT-N7105 using xda premium
Click to expand...
Click to collapse
Well yeah there's no LTE with T-Mobile anyway
hyelton said:
Yea but you still won't have lte
Sent from my GT-N7105 using xda premium
Click to expand...
Click to collapse
Technically no T-Mo customer has LTE yet, until April or so I've been told.
Unless you can predict the future or something, then no one knows for sure.
brandonarev said:
Well yeah there's no LTE with T-Mobile anyway
Click to expand...
Click to collapse
LoL! I was getting ready to say that.
All I can do is keep my fingers crossed and hope T-Mo uses the same freq as AT&T's LTE...
Then again given the circumstances of T-Mobile shortly taking over MetroPCS for their LTE coverage, they may have a larger or wider band of LTE frequency ranges.
_
I will apparently have T-Mo's 42MBPS HSPA+ as opposed to AT&T's 21MBPS HSPA+
_
Then again, that was my whole intentions of getting an AT&T Note 2 as to T-Mo's Note 2, I've been told there's no LTE Support for the T-Mobile version, but with AT&T I'd have more likely of a chance at having LTE support, once it's available... I still don't to this day don't get why T-Mobile released a crippled down version knowing that they'd have LTE in the near future.
I just didn't know it wouldn't work right away straight outta the box.
n1nj4Lo said:
Technically no T-Mo customer has LTE yet, until April or so I've been told.
Unless you can predict the future or something, then no one knows for sure.LoL! I was getting ready to say that.
All I can do is keep my fingers crossed and hope T-Mo uses the same freq as AT&T's LTE...
Then again given the circumstances of T-Mobile shortly taking over MetroPCS for their LTE coverage, they may have a larger or wider band of LTE frequency ranges.
_
I will apparently have T-Mo's 42MBPS HSPA+ as opposed to AT&T's 21MBPS HSPA+
_
Then again, that was my whole intentions of getting an AT&T Note 2 as to T-Mo's Note 2, I've been told there's no LTE Support for the T-Mobile version, but with AT&T I'd have more likely of a chance at having LTE support, once it's available... I still don't to this day don't get why T-Mobile released a crippled down version knowing that they'd have LTE in the near future.
I just didn't know it wouldn't work right away straight outta the box.
Click to expand...
Click to collapse
Have they specified when they would deploy the network? Even if they did they would start in few markets and by the time there is enough coverage the Note 3 will be out
brandonarev said:
Have they specified when they would deploy the network? Even if they did they would start in few markets and by the time there is enough coverage the Note 3 will be out
Click to expand...
Click to collapse
Nope they didn't specify anything with me just said the line "We'll have LTE in April" I'm going to the corperate office tomorrow or friday to get my micro sim and will ask them more about it then, if they know anything else. See if I need an lte micro sim or what and all that.
dailywireless.org said:
T-Mobile’s Chief Technology Officer Neville Ray discussed his company’s LTE rollout last month at CES. T-Mobile has said it plans to launch LTE for 100 million pops by mid-year, with 200 million covered by the end of 2013. Las Vegas is expected to be T-Mobile’s first LTE city. T-Mobile operates GSM on 1900 MHz (PCS) in the US and puts HSPA (and LTE) on the AWS band (1.7/2.1 GHz).
http://www.dailywireless.org/2013/02/18/t-mobile-lte-advanced-rollout
Click to expand...
Click to collapse
It says sometime between March 27th and April 3rd by the latest. What lte frequencies are AT&T's lte?
Unlocked at&t Note 2on t-mobile with 4g
I got an unlocked At&t Note 2 on T-mobile network with 4g im running Cleanrom S.E. 1.5 and everything works perfect. I had the same problem at 1st but i had a buddy change my Network to t-Mobile and it works fine im getting 10-12 Mbs download and 1.8 - 2.4 upload:cyclops:
T-Mobile will use band 4 LTE, AT&T uses band 4,13,17.
how did you guys get your g note II to tmobile anyways thats what im tring to do
jett1217 said:
how did you guys get your g note II to tmobile anyways thats what im tring to do
Click to expand...
Click to collapse
First you need to unlock it. Start here:
http://forum.xda-developers.com/showthread.php?p=38134975
Keep in mind that you need to be on the 4.1.1 firmware in order for that unlock to work...
Just my 2¢®
Sent from my SAMSUNG-SGH-I317 using Xparent SkyBlue Tapatalk 2
Well isnt that some useful info! Thanks for the unlock info I will be downgrading lol....Im with the guy above though did you have to flash a tmobile modem? Im running jedi rom for t889 on my i317 but was curious about flashing the modem and stuff.
What did you guys do to get tmobile 3g,4g and lte fully working on the i317? I have installed the jedi rom and all is working fine besides I have edge...So hopefully I can get a straight forward answer. My eyes are sore from reading.
And QPST is not working for me for QCN at all my phone is on com5 but when I go to get qcn says no phone connected....
Hello
Is it possible to flash T-Mobile M919 radio on an international galaxy S4 I9505 to get T-Mobile LTE ?
Did anybody do that successfully ?
Thanks
I haven't heard of anyone attempting that so I will definitely say no to that and I wouldn't recommend trying it
Sent from my SGH-M919 using XDA Premium 4 mobile app
No, it's not just the radio, the hardware supports different bands; it won't work.
You will only get edge.
Exel said:
No, it's not just the radio, the hardware supports different bands; it won't work.
You will only get edge.
Click to expand...
Click to collapse
Hardware is the same as far as I know !
mahanddeem said:
Hardware is the same as far as I know !
Click to expand...
Click to collapse
Not the bands it supports.
Sent from my SGH-M919 using Tapatalk 2
What I understand is : I9505 and M919 have the exact same hardware, the difference is in the radio file which makes the 2 devices have different LTE band. I believe the only difference is the radio programming which makes the difference but wanted to see if anybody manged to do it actually.
Many AT&T Galaxy s2 users flash T-Mobile radio and get T-Mobile AWS bands on their devices.
mahanddeem said:
What I understand is : I9505 and M919 have the exact same hardware, the difference is in the radio file which makes the 2 devices have different LTE band. I believe the only difference is the radio programming which makes the difference but wanted to see if anybody manged to do it actually.
Many AT&T Galaxy s2 users flash T-Mobile radio and get T-Mobile AWS bands on their devices.
Click to expand...
Click to collapse
I'm telling you because I had the i9505, I only got Edge. You will get 4G (NOT LTE) in SOME areas where the network has been reframed.
I see. Thanks exel
Too bad I was thinking to buy it but if it's not gonna work with T-Mobile LTE that's a deal breaker although my city is 99% refarmed, but LTE is something else !
Didn't you try flashing a T-Mobile radio (or any mod) to make it happen ?
mahanddeem said:
I see. Thanks exel
Too bad I was thinking to buy it but if it's not gonna work with T-Mobile LTE that's a deal breaker although my city is 99% refarmed, but LTE is something else !
Didn't you try flashing a T-Mobile radio (or any mod) to make it happen ?
Click to expand...
Click to collapse
Did you have the guts to try this in the end? I am thinking about flashing the M919 modem on my I9505 to see if I can get T-Mobile LTE in New York City.
I'm in the very same situation, and the thing is i've been hearing conflicting stories and accounts of people saying that it doesn't work, to others saying that they managed to get the 4g /lte working somehow, either through aws band ,or other software tweaks... I just want a concrete answer as to whether or not it's possible and if so how to do eet ? otherwise i just have an expensive smartphone that only gets 3mbps dwn, and 1mbps up at best on t mobiles h+
Sent from my GT-I9505 using xda app-developers app
Just picked a SM-N900W8 on ebay and from what I can tell its a lot like the tmobile variant? I use cricket/att and wonder if I cant just simply root and rom this phone and have working lte.
bL33d said:
Just picked a SM-N900W8 on ebay and from what I can tell its a lot like the tmobile variant? I use cricket/att and wonder if I cant just simply root and rom this phone and have working lte.
Click to expand...
Click to collapse
Looks like its got all the LTE bands!
http://www.4gltemall.com/samsung-galaxy-note3-sm-n900w8-4g-fdd-lte-smartphone.html
You can; I use them on my N900W8 will full compatibility (including NFC).
DrawnToLife said:
You can; I use them on my N900W8 will full compatibility (including NFC).
Click to expand...
Click to collapse
I have N900T, bought new one, stock Lollipop 5.0 and 4G doesnt work here in Serbia on this phone. Also I have poor network signal when I enter in some building and if I enter in some club or cafe I lost network. I have 4G card which work on other 4G phones with 4G signal. When I spoke with my network operator the told me that my phone was never registered on 4G network. If u have some suggestion how to fix that I will be more then thankful. Network operator is MTS Serbia.