yashsingh1/xdaforums huggingface dataset:
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] mykull:
yeah there's a Q&A thread where someone says that's what they did after using the info from this thread. it's over in the tmobile section
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] popi09:
Alright cool. Think I'm going to redo it all and flash a tmo recovery to try out some aosp ROMs
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] mykull:
just fyi, he didnt specify if he was able to flash aosp/aokp or not. im gonna try though :D
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] sci2:
Yes, I flashed a Tmo recovery and I'm also using a TMO rom. I don't know why some of you think you need to use an ATT rom. The original four files uses a tmo rom. I'm using Aamir's cleaned up stock Tmo 4.1.2 rom. Everything works perfectly including wifi calling.

And further update - I landed back in New York last night from being in TX and it looks like they lit up their LTE here as well. It was a nice surprise to turn on my phone after landing and see 4g LTE up in the status bar. So yes, LTE bands are working fine. I did a quick speed test while waiting to deplane and I got about 11Mbs down and 8 up.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] mykull:
idk if you know, but could i just flash a aosp/aokp rom meant for ATT and then just change the APN?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] mykull:
Happy to report I just flashed [OFFICIAL ROM][6/06/13][4.2.2] ParanoidAndroid 3.56 and it all went smooth and everything is working.

What I did:

I went to stock then with odin flashed the files from page 25, rooted, installed cwm with toolkit v7.0 (using toolkit as a tmobile s3) then flashed the PA rom and all is good :)

Thanks so much for all the useful info here!
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] Sajoeee:
I'm also able to flash ONLY T-Mobile ROMs. I can't flash at&t ROMs. It fails I'm recovery.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] zswielder:
That's hardly LTE speed.... I'm on their HSPA+ network on HTC One S (no LTE feature), and I get 23 down and 3 up. I get that you got a higher UL speed (which is usually not a limiting factor for our data use), but 11 DL speed is nothing to be excited about...

Also, for all others reporting being on T-Mobile's LTE network with AT&T GS3, please double check to see if you are indeed on LTE. I've read elsewhere about someone who tried this, and he said even though his phone was displaying LTE, when he checked his phone's status (not sure how he checked, sorry), he discovered that he was NOT on LTE. I ask this because none of your reports has been convincing (LTE should be faster than any of the numbers you've been reporting).
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] sci2:
I don't really care if you're excited or 'convinced' by any of my posts. Very proud that you've got 23 down wherever it is you live. I live in the metro NYC area where 12 million people are fighting over bandwidth. I'm pretty damn happy to be getting 11 down while at Newark airport with god knows how many other people sucking data off their pipe. I've checked the band my phone is using and it is, in fact, LTE:14.

For anyone else who isn't just trolling - I was out in the city last night and did NOT ever land on LTE. I was 4g all the way, but the nice thing is that I was able to use apps I needed to without constantly screaming at my phone to load info like I used to on AT&T in the city. Yelp, Google Maps, facebook, all gathered their requisite info handily. Pretty happy with TMO right now.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] zswielder:
Wow. Calm down, man. You are over-reacting. This is a public forum where we all express our opinions and thoughts. What I said was a simple fact. That's nothing for you to react with anger or be sour about. Don't be hating and calling someone trolling just because you hear what you don't wanna hear. Ask anyone else who is familiar with classification of mobile network speeds. They will all agree that your DL speed is not LTE. It's nothing about you or whether or not you are happy with your experience. It's an objective observation, which is very important especially so that other people won't be misled by the info. So, try not to react so negatively.

Also, if you want to know whether or not the network was clogged (which I highly doubt as T-Mobile just released its LTE network and most of their customers don't have phones capable of utilizing it, except for those that got their hands on the latest phones), check your ping time for that speed test you did. If you see huge latency, it could indeed be that the network was busy with other users. If not, that's not the case. It would be highly ironic if it was indeed hogged down with "12 million people" though (wow, really? that many T-Mobile users in one city? That's even more than NYC's population). I mean, it's a new network just released and most of T-Mobile customers aren't even on it and they will be buying phones to start using that network, but it's already hogged down that it's slower than it's HSPA+? How's that sound logical? I don't think a company would bother establishing a new network that gets hogged down within months with still a very limited number of customers on it.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] aibal:
This was in the DC area yesterday on my i747 running stock rooted 4.1.2 TMO ROM.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] perroschatos02:
Did you get those speeds with a T-Mobile sim card or att sim card
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] aibal:
T-Mobile
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] perroschatos02:
Will get service if I have my att sim card in or do I need to get a T-Mobile sim? Also does my phone have to be unlocked?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] zswielder:
That's a nice speed, but you say it's the stock ROM, but the font on the top doesn't seem to be that of the stock ROM? Are you sure it's just a rooted stock ROM and that it didn't receive more mods? Either way, that's a good result.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] tonytien:
Might just be a change of the stock font (FlipFonts you can download from Google Play) and changed through Settings > Display > Font Style
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] shafter13:
Will i get faster speeds if I make my base model tmobile with tmobile roms or do i stick to Atnt roms? Im only getting 2mbs not sure if its just my location

---------- Post added at 02:24 AM ---------- Previous post was at 02:19 AM ----------

Will i get faster speeds if I make my base model tmobile with tmobile roms or do i stick to Atnt roms? Im only getting 2mbs not sure if its just my location​
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] Fatty1212:
Will try this later... I will have a hold of an S3 later. Will it matter if the phone is sim locked at this time as i flash keith's file?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] HolyGhostBoy1:
Have anyone else confirmed this to work

---------- Post added at 01:33 PM ---------- Previous post was at 01:31 PM ----------

What did u do to get it to work
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] sci2:
I don't think it would really make a major difference what rom you'd use as far as speeds go. Theoretical bandwidth vs. real world bandwidth depends on the area you are located in and what TMO's backbone looks like to the towers you are connecting to. It will truly vary from tower to tower depending on the trunk(s) that feed that tower and who is connected to it.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] shafter13:
I dont think hes referring to use with tmobile sim? is he? Those files are all stock maybe just for atnt service use
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] neozengar:
Thank you all for all the help as I was able to access tmobile LTE and 3g in the bay area with my i747. I read that I can treat the phone as a i747 when rooting, however, when I tried to flash AOKP by task650, it gaved me an error saying that the bootloader is different and this is not the case when I flash slimbean 4.2. Did anyone try to flash task650's AOKP after flashing tmobile's file in this thread? Thank you in advance!
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] HolyGhostBoy1:
I'm on task 650 I had 3g earlier today bit now on g but what you have to do is download 7zip on your PC or laptop and edit the build prop from the boot loader it has to what your phone has
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] shafter13:
http://xdaforums.com/showthread.php?t=2307204

same files as this thread and same procedure just more in detail, but ill you have to do is flash These files in this order

After this use the atnt root file FOLLOWING LINK: http://xdaforums.com/show....php?t=1963790

after this flash a recovery and then flash any ATNT ROM you want all guaranteed to work

You already have the files from last post just flash it in the order given after flashing those flash root file given under PDA it self no need to add files
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] perroschatos02:
Does my phone have to be unlocked?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] HolyGhostBoy1:
well crap it worked!!!!!!:highfive:
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] neozengar:
Thank you, I will try this.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] perroschatos02:
Will you be using this with a att sim card
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] neozengar:
I am interest as well, does this work after I apply the tmobile in this thread mod? Do I have to first return to ATT stock and update the radio? Thank you!

Also, I am using tmobile sim card.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] shafter13:
did this help get 4g/lte with a tmobile sim? on a atnt gs3? what firmware did you use with that link? haha thanks in advance
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] Whoareyou:
Well, i flashed it, and Im not really sure how to test, because i live in a refarmed LTE area (KC) so, i was already getting LTE and HSPA+ on the refarmed 1900mHz network, but i still get it, and idk if its on 1700 or not, but whatever. I flashed PACman and LTE seems to be working fine, Thanks a million!
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] neozengar:
I also lived in a refarmed area. Before the mod, I will either see E or H/H+. After the mod, I only see 3g or 4g. Is this the case for you too? I am running slimbean by the way.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] Whoareyou:
i havent dropped to EDGE as frequently, from the looks of it, but i have dropped to GPRS a few times but thats because I live in the country and service can be spotty, but for the most part i get HSPA/LTE
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] athlonxp2300:
My i747 is sim unlocked with T-Mobile sim and fast.t-mobile.com as my apn.

I live in phoenix area. Lte and refarmed. I'm running stockorama v2 with T-Mobile kernel and at&t modem UCDLK3. I never did the tmokeith mod.

When I use *#2263# to choose bands it shows 1700 but will not use it. If I choose 1900 or 850 the signal goes away and then for 1900 it comes back with 4g. If I choose 1700 nothing happens.

Whith it on 1900 or on auto my status shows utms:3. However if I start a speed test with open signal then go back to status it will be hspap:15 until the test is done. Then it goes back to utms:3.

When stockorama v3 comes out I'm going to flash tmobile recovery then choose both tmobile options. I will try 1700 again then. I was hoping for a better modem from at&t but they still don't have 4.1.2 official.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] shafter13:
try this http://xdaforums.com/showthread.php?p=42321222#post42321222
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] athlonxp2300:
Why mess with a good thing now. Like I said in my post. I will do that if needed, but not till after using stockorama v3.

My goal is to make the phone more like T-Mobile not more like att. T-Mobile kernel, and rom. only att modem or tmobile engineering modem for i747.

Wifi calling and mms is more important in phoenix than 1700 hspap.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] shafter13:
this fixes it but okay up to you
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] shafter13:
LTE

Now that Tmobile has LTE on thier s3, is thier a way to get LTE on atnt galaxy s3 with Tmobile sim? Flashing The latest Tmobile radio/fileS?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] athlonxp2300:
Yes. You can easily get T-Mobile Lte with att i747 if you have it sim unlocked and use T-Mobile sim card with T-Mobile apn settings. You won't get 1700 mhz hspap without flashing the phone. But most areas with Lte are also refarmed for 1900 hspap. T-Mobile radio for t999L doesn't work for i747.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] Product F(RED):
All AT&T LTE devices will work on T-Mobile and vice versa. T-Mobile uses AWS for LTE (and their devices support 700 MHz as well) and AT&T uses 700 MHz and also AWS for LTE.

The difference is in HSPA+ support. If you use an AT&T device on T-Mobile out of the box (one that doesn't do AWS for HSPA+), you will only get EDGE and LTE. You'll only get HSPA+ in a refarmed (1900 MHz) area. T-Mobile phones are pentaband and will fully work on AT&T (EDGE, HSPA+, LTE) out of the box.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] upncoming:
I flashed everything in this thread successfully and then switched my Rom to Hyperdrive. Ran great. Then out of curiosity I took a suggestion from an earlier post and flashed a stock modem. That was a no go and brought me back to square one. No 1700. So, I flashed just the modem and CSC from here, and I'm back in business.

Looks to me that you don't have to flash everything from here. Just those two files. Modem and CSC. I'm going to play guinea pig with my wife's I747 since it's stock and report back. If it works, that should make the process easier than flashing the tmo Rom here, rooting again, and then having to flash your Rom of choice. Hopefully you can skip all three of those steps and not have to change Roms in the first place.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] Whoareyou:
I know the T999L modem doesnt work, but has anyone tried it with the T999L bootloader? Im not going to do it myself, but if anyone here has the ability to test it and recover their device if it fails, that would be cool
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] upncoming:
Yup, worked like a charm. My wife's phone still is on stock 4.1.1 and now has the 1700 band enabled. All I did was root and install custom recovery with GS3 toolkit, make a backup, flash the modem and CSC files from this thread with Odin, and after a reboot I was able to select and use the tmo 1700 band for 4g.

I hope this helps anyone that doesn't feel like wiping everything from their phone to get this working. She kept everything that was already on her phone. All apps and settings.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] athlonxp2300:
People say you will only get lte and edge. While it it true you wouldn't get hspa+ on 1700, it is my experience that when T-Mobile upgrades a tower to Lte they also refarm it to 1900 hspa.

This means that without the modem and csc file from here you are more likely to either get edge, or Lte hspa and edge.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] Product F(RED):
As I said in the quoted text, you'll only get hspa+ in refarmed areas of you use the phone on unmodified on T-Mobile. Edge and LTE are compatible out of the box though.

Sent from my Galaxy Note 2
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] athlonxp2300:
I know that the t999L modem doesn't work on the i747, but I wonder if it would work if also using this csc file.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] Whoareyou:
im wondering the same but if we use the bootloader for the T999L
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] rebelde59:
Excellent work. my phone works perfectly well on T-Mobile 4G LTE in the Bronx NY. ;);)
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] perroschatos02:
If am on a ROM all I have to do is flash the modem and CSC file? Am not unlocked am on a i747 is there anything I have to do besides flash those 2 files?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] athlonxp2300:
This didn't work as well for me. I thought I would give it a try. backed up and then flashed csc and modem files. after reboot my system was like a factory reset. I figured oh well and checked things out while I was there. Yes I could now switch to 1700. however it was stuck on utms. no hspa even during active traffic. So I used my backup and restored system and data, but not boot. every thing looked normal but I still had the engineering baseband. I still had no hspa. I rebooted to recovery and flashed the latest i747 modem.

This time once I rebooted I had hspa back but the strange thing is now when I go into the *#2263# and choose 1700 it works!? Before when I clicked on that option nothing happened and the * never moved next to it. now it does. I live in weak 4g (1700 and 1900) and lte area. Most of the time my I747 would drop to edge at home. Now I'm holding 2 bars. The only negative I've found so far is that when set to auto it chooses 1700 over 1900. my 1900 is twice as fast here. I will have to give it some time and several restarts to see how it all turns out.

You can use the phone code *#0011# to see the band you are on when choosing auto from *#2263*

Band 4 is 1700. I think Band 2 is 1900.

side note: My t999 is much faster in 4g because of the hspa42 it is just about as fast as my i747's avg lte speed.

Edit: After 2nd restart I am no longer able to choose 1700 from the service mode menu. :(

---------- Post added at 05:11 AM ---------- Previous post was at 04:58 AM ----------

If you are trying to use it on T-Mobile it will need to be sim unlocked.

Then I recommend you root it and install a custom recovery.

Then back up everything.

Then wipe caches and reboot to download mode

Then odin flash csc file and Modem file.

be patient.....

once phone has rebooted to start screen give it 5 mins then reboot it again. ( this helps give the OS time to run some of it's background stuff)

Once rebooted hopefully you now have 1700 band added to your i747.

if you live in a LTE area I'm not sure this is worth it.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] upncoming:
Hmmm..... I wonder what the difference was? My wife's phone still works fine and no data or apps were lost. I can still switch it to WCDMA 1700 only (asterisk stays on that band selection) and she gets 4g. #*0011# confirms she is on band 4.

I did check to see if it worked right away after the initial Odin reboot from flashing, and at that point it didn't work. But after I manually rebooted it did. But again nothing was reset or lost. That kinda baffles me.

Maybe which Rom you're on does matter? She was/is on stock 4.1.1. Or which initial baseband matters?

On another note, I did not clear or wipe anything before flashing. It was dirty, but I was trying to test how much easier this process could be.

When I get some time I'll try throwing another stock I747 motherboard in my phone and test the process again. I think I still have one laying around.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] athlonxp2300:
It could be the rom/kernel difference. I'm using stockorama v2 and I forced the T-Mobile kernel.

I didn't wipe anything first but I did wait 5 mins after it booted then i rebooted manually.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] popi09:
Anybody able to flash this ROM http://xdaforums.com/showthread.php?t=2015607 and still keep 4G? I always get G!
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] XP_1:
Flash New Files and Revert to Stock?

Hey, guys. Sorry I am a beginner, and have been searching through this thread but does anyone know if I root my phone and flash these modem updates/alternative files found, how I could possibly revert back to stock in case I need to/ or is there really any purpose? Do they check this kind of thing for a warranty or what not? This is an AT&T SGH I747, by the way. Just curious. Thanks.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] happyhourtx:
followed your directions and am only able to get "G".
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] upncoming:
Did you go into service mode and try enabling the 1700 band only?

*#2263#

WCDMA band preference

WCDMA 1700

Menu button

Back

WCDMA 1700 should have an asterisk next to it. (If not, the mod is not working.)

To revert:

*#2263#

Automatic (1st option)
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] Whoareyou:
It works for me, but when i flash another ROM, it only uses the 1900 band...
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] upncoming:
Did you try flashing the modem and CSC again after changing Roms?

It looks like which Rom I was on affected me getting LTE. This morning I factory reset and wiped everything. Then I flashed back to stock 4.1.1, rooted with CF auto root, and flashed the modem and CSC from here. To my surprise Tmobile LTE was up and running in my area. Plus, 1700 was still working for me. I think running with 2 hspa+ bands and LTE are a fair trade off for running stock....
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] upncoming:
I'm loving this.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] Whoareyou:
I reflashed the CSC and modem and I now get hspap:15 on PACman. So I guess it worked :D
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] popi09:
I tried doing that and still kept G!

I'll try reflashing them tonight
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] Doomstick:
EDIT: nevermind
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] happyhourtx:
thanks. now im getting 4g/lte. thank you.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] HolyGhostBoy1:
So do you still have root and a custom recovery
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] adv1sory:
nevermind
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] hith1:
Ok so maybe someone can set me straight here. i spent about an hour reading this thread and think i started glazing over everything but let me see if i got this straight.... I have an I747 on AT&T (US) but i'm going to be putting a T-Mobile SIM in it and signing up for T-Mobile (US) Service. After doing this, I will not have access to the 1700mhz band (3G) correct?

Now i have a rooted phone but thats where i stopped. I do not have any recovery, no TWRP, CWM, etc... What do i need to do in order to get this working????
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] upncoming:
You won't need recovery, but you will need Odin installed on your PC. Flash the modem and CSC files from this thread via Odin and you're done. If you want to go better safe than sorry... factory reset, wipe cache and wipe dalvik cache first before flashing. You can use titanium backup to backup your apps, call logs, and messages if you don't want to lose them from resetting. Enjoy.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] hith1:
Thanks. I am going to activate my Sim hopefully tonight or tomorrow and will give it a go. I have Titanium backup so i'll back it up just in case.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] upncoming:
Good luck! I've done it on 2 phones so far, and one of them was a couple times because of changing my Rom. 1 dirty flash and a couple of clean. Worked on all occasions. It's pretty easy. Let me know how it goes!
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] fredrick1213:
T-Mobile LTE just popped up for me today. I had no idea they were working on it in my area (first test is HSPA+ and second is LTE)
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] Whoareyou:
Hey for some my mms isn't working.... The APN is set correctly for fast.tmobile.com and the MMS is set. Right too...
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] athlonxp2300:
Not sure if it was just a typo but apn should be fast.t-mobile.com.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] Whoareyou:
Changing that didnt fix it, i get a toast message "Service not activated on network"
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] upncoming:
Are you using a stock messaging app?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] Whoareyou:
The Stock AOSP one yeah