Develop Bugs

AT&T GSIII On Tmobile 3G/4G

Since the AT&T GSIII) and T-mobile GSIII) are basically the same phone I wounder if the AT&T version will work on T-mobile 3G/4G. Similar to the way the AT&T Galaxy Note works on T-mobile 3G/4G. I was gone probably by the phone out right to use on T-mobile. AT&T has it for 550.00 where as T-mobile has it for 630.00.

I don't think so because att phone doesn't support mobile's aws band but idk if you could flash a modem. I did that on my note but the speeds were horrible. But yea t-mobile is expensive I just paid 680$ for my s3 today at my retail store..
Sent from my SGH-T999 using xda premium

I don't know, i'm wondering the same thing. the phones are identical. I think it's a very high possibility that there will be rom/radio/ kernal combinations in the future that will cater to t mobile radios that we will easily be able to flash. Just unlocked mine, I think i'm gonna have faith in US GSIII development, identical hardware and eventual full cross compatibility.

As far as I know, the Att has an lte modem and the tmo doesn't. I read that even when tmo launches LTE it won't work with the gs3. But, the tmo has att hspa+ support 1700mhz and should work with att 3g no problem.
Sent from my SGH-T999 using xda app-developers app

Has anybody tried popping a Tmobile sim in an AT&T GS III?
Sent from my HTC Incredible S using xda premium

The modem for lte or hspa+ is built into the msm8960. In theory they should be interchangeable
Would be interesting experiment for someone with rooted phone to try loading the alternative kernel/baseband then applicable sim.
Keeping fingers crossed,
Sent from my SGH-I747M using Tapatalk 2

Canoe Head said:
The modem for lte or hspa+ is built into the msm8960. In theory they should be interchangeable
Would be interesting experiment for someone with rooted phone to try loading the alternative kernel/baseband then applicable sim.
Keeping fingers crossed.
Sent from my SGH-I747M using Tapatalk 2
Click to expand...
Click to collapse
Think it was done by tsp and failed. Also how do you know the mms8960 works on T-Mobile's 1700 band? So far no evidence.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

There is snapdragon s4 whitepaper that states modem can do lte cat3, and dc-hspa+ cat24.
Elsewhere states that the rf for common freqs range 700-2600.
Do not have link handy.but try developer.qualcomm.com
Sent from my SGH-I747M using Tapatalk 2

What I don't get is why t-mobile would use a different chipset if the 747's msm8960 was compatible with 1700 aws. Especially since t-mobile is spending billions to refarm right now to make all gsm devices compatible with their network. It just doesn't make sense. Until there's confirmation, there are reasons to have doubts.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

There are some reports on xda that t999 variant used the msm8260 which is similar chipset but NO LTE.
I would be interested in link wrt tsp attempt at baseband flash, especially which s3 was used.
I find surprising samsung would bother with these build variants.
Does not bode well for FM....
Sent from my SGH-I747M using Tapatalk 2

Canoe Head said:
There are some reports on xda that t999 variant used the msm8260 which is similar chipset but NO LTE.
I would be interested in link wrt tsp attempt at baseband flash, especially which s3 was used.
I find surprising samsung would bother with these build variants.
Does not bode well for FM....
Sent from my SGH-I747M using Tapatalk 2
Click to expand...
Click to collapse
He spoke about trying to flash the t-mobile s3 radio in another thread earlier with no results. Returned his and ordered the t-mobile variant. I ordered a skyrocket myself. So far it doesn't look good. But of course with radios nothing is concrete. All we can do is flash their files and hope something sticks.
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r3a1ist said:
He spoke about trying to flash the t-mobile s3 radio in another thread earlier with no results. Returned his and ordered the t-mobile variant. I ordered a skyrocket myself. So far it doesn't look good. But of course with radios nothing is concrete. All we can do is flash their files and hope something sticks.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
Has anyone tried injecting the modem.bin of T999 to the i747M CWM flash ready file and has their phone network unlocked with T-Moblie/Mobilicity/Wind sim?

There are at least two "versions" of the MSM8960, one with the LTE support, one without. The TMO version has the MSM8260A modem, which can be verified with getprop from the terminal. In essence, the TMO version does have the newer S4 (Krait) CPU, but it does lack the LTE hardware. So, no, the phones are not identical. The TMO version does support AT&T HSPA frequencies though, but the ATT version does not (at least in the default configuration) support TMO HSPA frequencies. Whether that can be changed or not, I don't know.
From "getprop" in terminal:
ro.board.platform - msm8960
ril.modem.board - msm8260a
What does the AT&T version say?

When Amazon first posted the AT&T version on their site I read a review about it saying it would work on T-Mobiles network for voice but not data.

When Amazon first posted the AT&T version on their site I read a review about it saying it would work on T-Mobiles network for voice but not data.
Click to expand...
Click to collapse
What they undoubtedly meant was that you would only get plain old GSM (EDGE, GPRS, etc.) with the AT&T version on T-Mobile, due to the lack of proper frequency support for T-Mobile's network. Still voice and data, just slow as hell by today's standards. However, the T-Mobile version fully supports AT&T frequencies for HSPA (no LTE though).

At&t galaxy s3 to T-Mobile help

I got my unlocked s3 so I can use it on T-Mobile and hate edge so I was wondering if flashing the blaze modem would allow me to get 4g like the at&t galaxy note did.
Sent from my Nexus 7 using Tapatalk 2

Blaze is a .gs2, it would probably brick. I wouldn't risk it. If anything I'd try the t-mobile .gs3 radio.
Sent from my GT-I9300 using xda app-developers app

I need to know if someone has done this and gotten it to work the tmo gs3 modem if the blaze doesnt
from my Nexus 7 using Tapatalk 2

horr1blek1tten said:
I got my unlocked s3 so I can use it on T-Mobile and hate edge so I was wondering if flashing the blaze modem would allow me to get 4g like the at&t galaxy note did.
Sent from my Nexus 7 using Tapatalk 2
Click to expand...
Click to collapse
I been thinking...instead of messing with all that and end up with a brick, why just not sell it on ebay and buy an actual Tmobile one or maybe trade with someone willing to. I would look at the selling price for an AT&T GS3 on ebay and how much would a Tmobile run and if it's not that much difference then pay the difference than end up with a possible brick. Plus I have read some forums where if you flash some things that are not meant for your phone you can even mess up the IME on your phone with no way to flash it back at the moment until someone comes up with a solution for it.

Not trying to be a jerk. Just a friendly reminder that this is not development related and needs to be in general or QA. I would repost there and report your thread to a moderator before the pitch forks come out.
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When I put my friends note to t mobile it was the modem you had to flash , if your set on doing it , read a bunch on ways to do the note WITHOUT a custom Rom then find the same files you use in that ( the modem and if I remember right there was one other thing ) then go to the t mobile section in the sgs 3 thread and ask for help finding those files , but do a lot of reading first cause it would be a shame to brick your awesome phone
Sent from my SAMSUNG-SGH-I747 using xda premium

lessthanzach said:
Not trying to be a jerk. Just a friendly reminder that this is not development related and needs to be in general or QA. I would repost there and report your thread to a moderator before the pitch forks come out.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2
Click to expand...
Click to collapse
I thought this was development?
Sent from my HTC_Amaze_4G using Tapatalk 2

I'm also interested in getting HSPA+ 21.1 speeds on my unlocked AT&T GS3 on my tmobile network...any suggestions?

Jonnyredcorn said:
I'm also interested in getting HSPA+ 21.1 speeds on my unlocked AT&T GS3 on my tmobile network...any suggestions?
Click to expand...
Click to collapse
buy the t-mobile version. it doesn't work hardware not supported

im looking into this as well, i had the att note and flashed the tmobile modem worked like a charm so now im looking to do same with s3. if i find anything ill let you know

I don't thonk it will work at all. Att's S3 is LTE, correct. Tmobiles is not. Two different hw radios used.
If you do try it please post your results for others!
Sent from my SGH-T999 using xda app-developers app

If a solution for this is found I'll definitely be buying a red GS3 soon.

Classick206 said:
If a solution for this is found I'll definitely be buying a red GS3 soon.
Click to expand...
Click to collapse
I seriously wouldnt count on it. The two networks run on different technologies. Im pretty sure the hw is different due to this.
Sent from my SGH-T999 using xda app-developers app

Have you guys tried the radios in the dev section by wildchld? I'm not sure it will work either but maybe worth a try. It has a script that backs up current radio and you can revert back. Atleast on T-Mobile s3 it does. Just need to reflash the restore zip to go back to previous radio. Again try at your own risk. There's a huge chance you can brick your device.
http://forum.xda-developers.com/showthread.php?p=30355162
Sent from my SGH-T999 using Tapatalk 2

Tmobile is reframing the network. Soon after this year att iphones will get 3g 4g from tmobile.just wait for.it
Sent from my SGH-T999 using xda app-developers app

DocHoliday77 said:
I don't thonk it will work at all. Att's S3 is LTE, correct. Tmobiles is not. Two different hw radios used.
If you do try it please post your results for others!
I don't think it matters if the Gs3 from T-Mobile doesn't have LTE, I used to have my Galaxy s2 skyrocket with LTE running on T-Mobile 3G/4G off a GS2 Hercules Modem.
Sent from my Samsung Galaxy S3 using XDA Premium HD app
Click to expand...
Click to collapse

Then by all means, give it a shot. I have no problem being proven wrong on stuff like this!
Just remember that was a different phone. And tmobiles radio Im pretty sure was confirmed to NOT support LTE. So they are different.
I'm definately looking forward to hearing someones results after trying! Just do some research on the two radios, and make sure the sw modem is on the same partition for each phone. (I think it will be. But if its not you could end up with serious problems)
Good luck to whomever tries it!
Sent from my SGH-T999 using xda app-developers app

Probably won't, the T-Mobile phone is pentaband so it will run 3/4G on AT&T, but their version isn't. Try it though.
Sent from my SGH-T999 using Tapatalk 2

jason4962 said:
Tmobile is reframing the network. Soon after this year att iphones will get 3g 4g from tmobile.just wait for.it
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Click to expand...
Click to collapse
T-Mobile doesn't have 4G. The iPhone will get HSPA.
Sent from my SGH-T999

joshnichols189 said:
T-Mobile doesn't have 4G. The iPhone will get HSPA.
Sent from my SGH-T999
Click to expand...
Click to collapse
Not yet they don't. But as he said tmobile is refarming their entire network in preparation for LTE rollout next year.
Sent from my SGH-T999 using xda app-developers app

[Q] Does T-Mobile note2 work with at&t lte or hspa?

Guys,
I so want to buy the note 2 like today. However T-Mobile has no coverage in my area. If I buy the phone at full price I can get it unlocked. Am just wondering if T-Mobile note will work on at&t lte Or hspa+.

sats.mine2k4 said:
Guys,
I so want to buy the note 2 like today. However T-Mobile has no coverage in my area. If I buy the phone at full price I can get it unlocked. Am just wondering if T-Mobile note will work on at&t lte Or hspa+.
Click to expand...
Click to collapse
The phone does support HSPA+ on AT&T out the box since the bands are included. The phone also has T-Mobile LTE frequency as well, but is said to be locked down by software since T-Mobile does not have LTE up and running yet. I believe T-Mobile and AT&T do use the same frequency for LTE. Only way to know if someone unlocks their device and puts in an AT&T sim.

According to AnandTech review it WILL support ATT LTE. So how does a non-Tmobile user unlock this phone??? I want to use on ATT.
From the review...
http://www.anandtech.com/show/6386/samsung-galaxy-note-2-review-t-mobile-/9
One of the most interesting things about the Galaxy Note 2 on T-Mobile is that it literally is the same hardware as the AT&T Note 2 with LTE. Sure, the model number is different, but the T-Mobile Note 2 includes support for LTE bands 17 (which AT&T uses) and 4 (AWS, which AT&T has specced devices out for and T-Mobile has confirmed it will deploy LTE on). This is to my knowledge the first T-Mobile handset with overt LTE support, and thus a solid future-proof purchase if you’re determined to have a T-Mobile handset that will work with the carrier’s upcoming LTE on AWS plans.
In addition, if you unlock the handset there’s no reason it shouldn’t work on AT&T’s LTE network that I can see. I managed to unlock the T-Mobile Galaxy Note 2 but not before leaving the AT&T LTE market in Dallas. It does however work as expected on WCDMA 1900 in my own market on AT&T after unlocking.

Will the Note 2 work on streight talk as well?

I'm curious if the note II would work on att's 3g network. I'm with Sprint atm but I'm constantly roaming due to poor coverage so I'm assuming it won't be long till they nix my contract and paying $100+ for limited data is just ridiculous to me so I was going to go with TMobile but they only have.edge coverage around here no 3g so I was hoping if I went with TMobile I could use AT&T towers and actually have a decently priced plan with real service.
Sent from my SPH-D710 using xda app-developers app

sats.mine2k4 said:
Guys,
I so want to buy the note 2 like today. However T-Mobile has no coverage in my area. If I buy the phone at full price I can get it unlocked. Am just wondering if T-Mobile note will work on at&t lte Or hspa+.
Click to expand...
Click to collapse
Im in the same boat im going thru the same thing I have both simplemobile/tmo and Att for work and i played with the international version and ofourse it was fine with my Att sim i didnt try my simplemoble/tmo sim at the time but im hearing the tmo version is exactly like the att and international one so imma just use my work phone/att to save some money(I use google voice so it doesnt matter what phone i use same number) and plus im suppose to get a discounted price so lets say i can possible be very happy this weekend!! but imma take the chance all the info i read states it will work with Att hspa+network so well see soon! if nobody tries it before me...

I took the plunge...
I bought the TMOB version
Cellunlocker.net unlocked it (I selected the international note 2 option)
Pooped in my at&t sim
No LTE!!!
Sent from my SAMSUNG-SGH-I717 using xda app-developers app

ekerbuddyeker said:
I took the plunge...
I bought the TMOB version
Cellunlocker.net unlocked it (I selected the international note 2 option)
Pooped in my at&t sim
No LTE!!!
Sent from my SAMSUNG-SGH-I717 using xda app-developers app
Click to expand...
Click to collapse
Lol @ "Pooped in my at&t sim"!

ekerbuddyeker said:
I took the plunge...
I bought the TMOB version
Cellunlocker.net unlocked it (I selected the international note 2 option)
Pooped in my at&t sim
No LTE!!!
Sent from my SAMSUNG-SGH-I717 using xda app-developers app
Click to expand...
Click to collapse
did u get hspa+ atleast? im thinking of getting note 2 from tmobile and using at&t

It says 4G
Sent from my SGH-T889 using xda app-developers app

ekerbuddyeker said:
It says 4G
Sent from my SGH-T889 using xda app-developers app
Click to expand...
Click to collapse
thats good. hspa+ is all i need
how much was it to get it unlock

$25
Sent from my SGH-T889 using xda app-developers app

ekerbuddyeker said:
$25
Sent from my SGH-T889 using xda app-developers app
Click to expand...
Click to collapse
thanks.

LTE band might just be software locked since T-Mo has yet to get LTE, FCC filings showed LTE capability. YMMV

So how does one unloxk that?
Sent from my SGH-T889 using xda app-developers app

Hacked radio. Prob be a while for that though. Need att radio drivers most likely.
Sent from my SGH-T889 using xda premium

additional evidence that it's LTE enabled (technically)
http://www.anandtech.com/show/6386/samsung-galaxy-note-2-review-t-mobile-/9
not sure how to "unlock" the LTE functionality

Well I am enjoying the device. Im Missing LTE in NYC where 4G is not great!
Sent from my SGH-T889 using xda app-developers app

ekerbuddyeker said:
Well I am enjoying the device. Im Missing LTE in NYC where 4G is not great!
Sent from my SGH-T889 using xda app-developers app
Click to expand...
Click to collapse
Make sure your using the right APN....... if your not using the right APN you won't get lte
Sent from my GT-N7100 using xda premium

Most likely your going to need the At&t radio just how At&t note 1 worked on t-mobile 4g by flashing the radio... maybe even a full on rom from at&t version since all the phones now come with the same hardware

Verizon s3 unlock to Tmobile

I got a free Verizon s3.... I need to know if i can use Tmobile on it?
I read several threads....but no real info.
Any help would be great.
Sent from my SGH-T989 using xda premium

No. Verizon is CDMA TMo is GSM.

alloycowboy said:
I got a free Verizon s3.... I need to know if i can use Tmobile on it?
I read several threads....but no real info.
Any help would be great.
Sent from my SGH-T989 using xda premium
Click to expand...
Click to collapse
verizon is cdma tmobile is gsm But:
u can sign up with metroPCS (uses cdma) owned by tmobile till 2015 ....that's when tmo will phase out cdma network.
hope that helps!

Alright....thank you for the help

blackangst said:
No. Verizon is CDMA TMo is GSM.
Click to expand...
Click to collapse
Wrong, You can use Verizon S3 with Tmobile if you unlock the phone. Verizon S3 has Sim Slot. I'm using one right now
check this: http://forum.xda-developers.com/showthread.php?t=2013647
and this: http://forum.xda-developers.com/showthread.php?t=1809314

Originally Posted by blackangst
No. Verizon is CDMA TMo is GSM.
Click to expand...
Click to collapse
Wrong, You can use Verizon S3 with Tmobile if you unlock the phone. Verizon S3 has Sim Slot. I'm using one right now
check this:
Double wrong. Verizon has a different RADIO frequency than AT&T and/or T-Mobile. It is impossible to update/change the radio for a sim on att/tmobile for it to work on Verizon phone. Like said before: Verizon is CDMA (code division network based) AT&T/T-MOBILE is GSM (global system network) now let me Synthesise, IMPOSSIBLE for the simcard to work in Verizon phone with out the appropriate radio for the network!
Sent from my SAMSUNG-SGH-T989 using xda premium
---------- Post added at 08:02 AM ---------- Previous post was at 07:50 AM ----------
porto35 said:
Wrong, You can use Verizon S3 with Tmobile if you unlock the phone. Verizon S3 has Sim Slot. I'm using one right now
check this:
Click to expand...
Click to collapse
Wrong, You can use Verizon S3 with Tmobile if you unlock the phone. Verizon S3 has Sim Slot. I'm using one right now
check this:
Double wrong. Verizon has a different RADIO frequency than AT&T and/or T-Mobile. It is impossible to update/change the radio for a sim on att/tmobile for it to work on Verizon phone. Like said before: Verizon is CDMA (code division network based) AT&T/T-MOBILE is GSM (global system network) now let me Synthesise, IMPOSSIBLE for the simcard to work in Verizon phone with out the appropriate radio for the network!
Sent from my SAMSUNG-SGH-T989 using xda premium
Click to expand...
Click to collapse
Sent from my SAMSUNG-SGH-T989 using xda premium

The first touch screen BlackBerry made for Verizon works on T-Mobile so why wouldn't this ? Granted the phone sucks and can only get edge, but it worked none the less
Sent from my SGH-T989 using xda app-developers app

Spastic909 said:
The first touch screen BlackBerry made for Verizon works on T-Mobile so why wouldn't this ? Granted the phone sucks and can only get edge, but it worked none the less
Sent from my SGH-T989 using xda app-developers app
Click to expand...
Click to collapse
some of the verizon phones are "world phones" and have both gsm and cdma. all verizon lte phones have a sim card but only some have gsm. I don't know anything about the verizon s3 but you would be better off asking in the verizon s3 forums.

I know what world phones are. Was just stating to the other dude who thinks it completely impossible.
Sent from my SGH-T989 using xda app-developers app

Not impossible. I get 3g on it and that's it. But when i change ROMs i have to redo the whole freaking APN settings again!!!
Too much of a hassle. So i got rid of it.
Sent from my SAMSUNG-SGH-T989 using xda premium

alloycowboy said:
I got a free Verizon s3.... I need to know if i can use Tmobile on it?
Click to expand...
Click to collapse
Yes you can, see this right now you can only get E speed on it. My S3 is actually flashed to Pageplus and I can use it with any GSM carrier here in the US, it's fairly easy to do but like I said you only get "Edge" speed for now. I've use Net10, Simplemobile and StraightTalk, any GSM will work you can also flash to other CDMA like Metro, Cricket or Pageplus.

Maxninja said:
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Click to expand...
Click to collapse
you have no idea about Verizon S3. Don't try to be smart my friend. I'm very sure that you don't own any S3 from Verizon. Stop BS about CDMA and GSM radio. I have been used my Verizon S3 for Tmobile for more than 8 months.

porto35 said:
you have no idea about Verizon S3. Don't try to be smart my friend. I'm very sure that you don't own any S3 from Verizon. Stop BS about CDMA and GSM radio. I have been used my Verizon S3 for Tmobile for more than 8 months.
Click to expand...
Click to collapse
See... This is what happens when a ignoramus tries to be smart .. You don't know what you're saying.. It is a proven fact that you can't put a GSM into a NON-gsm phone and expect it to work! (i tried it.. And it failed.. Invalid sim[in a unlocked vzw phone])
Now, this is posted in the wrong thread.
Phone history:
1.T-Mobile Mytouch 3G Fender Ed. - lost
2.T959V - ROOTED#bricked/trying to fix
3.T959 - ROOTED#SlimRom build 5.5 - backup
4.Moto Razor V9 - broken
5. Samsung Intercept - ROOTED#Stock
6.I897 - ROOTED#SlimRom build 3.1- backup/usb port broken-MIA
7.T989 - ROOTED#SlimRom build5.5 - present

yes but havent tried
there are several places saying it is totally possible and ive called verizon trying to see what they would say and the answer i got, at least for out of the country GSM, is that the S3 comes "unlocked already" and you just put in the sim card from whatever out of country carrier you want. apparently that came with the 4.1.2 update to the phone. Now putting with a us carrier might be different but i cant try it because i have my phone flashed to metropcs and i cant just put a metro sim card in it. here a few places i found just by looking on google
http://rootandunlock.blogspot.com/2013/04/rooting-and-unlocking-your-verizon.html
http://androidrays.com/518/change-cdma-verizon-galaxy-s3-to-gsm-handset-by-hack/
http://www.youtube.com/watch?v=tc7PRDPIzHY
and theres a couple more

Maxninja said:
See... This is what happens when a ignoramus tries to be smart .. You don't know what you're saying.. It is a proven fact that you can't put a GSM into a NON-gsm phone and expect it to work! (i tried it.. And it failed.. Invalid sim[in a unlocked vzw phone])
Now, this is posted in the wrong thread.
Phone history:
1.T-Mobile Mytouch 3G Fender Ed. - lost
2.T959V - ROOTED#bricked/trying to fix
3.T959 - ROOTED#SlimRom build 5.5 - backup
4.Moto Razor V9 - broken
5. Samsung Intercept - ROOTED#Stock
6.I897 - ROOTED#SlimRom build 3.1- backup/usb port broken-MIA
7.T989 - ROOTED#SlimRom build5.5 - present
Click to expand...
Click to collapse
U actually can use the Verizon variant s3 on tmobiles network as the s3 is a world phone, now here's where and why most ppl don't, Verizon's network is CDMA as we all know and T-Mobile is a gsm network, so with the s3 being a world phone it can be used on a gsm network but u will never see 4g or even real 3g speeds, Verizon's s3 doesn't have the ability to pick up anything but "E", edge speeds on T-Mobile so is it really worth it? Not in my opinion, if I'm going to blget an s3 I want the full functionality of the devices capabilities, just saying though lol
Sent from my SGH-T989 using xda premium

Si you have any idea how to do that?
Sent from my SCH-I535 using xda premium
---------- Post added at 12:58 AM ---------- Previous post was at 12:56 AM ----------
Metro now had sim cards running off of t-mobiles towers so I don't think it has to be flashed anymore but unlocked
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robcop19 said:
Si you have any idea how to do that?
Sent from my SCH-I535 using xda premium
---------- Post added at 12:58 AM ---------- Previous post was at 12:56 AM ----------
Metro now had sim cards running off of t-mobiles towers so I don't think it has to be flashed anymore but unlocked
Sent from my SCH-I535 using xda premium
Click to expand...
Click to collapse
Well I actually already flashed mine to metro but then for anyone else that would mean you have to figure how to unlock the verizon s3 and move it to the Gsm for metro. And what I want to see is if it'll pick up 4G
Sent from my SCH-I535 using xda premium

robcop19 said:
Well I actually already flashed mine to metro but then for anyone else that would mean you have to figure how to unlock the verizon s3 and move it to the Gsm for metro. And what I want to see is if it'll pick up 4G
Sent from my SCH-I535 using xda premium
Click to expand...
Click to collapse
I can say with some certainty that u will not see 4g using a Verizon variant s3 on T-Mobile network, yes its a world phone and yes u can get it to "work" on T-Mobile but it doesn't have the right kind of internal for gsm 4g network speeds, the most u will see out of it is E or edge, 2g speeds, at least until the towers get updated
Sent from my SGH-T989 using xda premium

3G
soupysoup said:
I can say with some certainty that u will not see 4g using a Verizon variant s3 on T-Mobile network, yes its a world phone and yes u can get it to "work" on T-Mobile but it doesn't have the right kind of internal for gsm 4g network speeds, the most u will see out of it is E or edge, 2g speeds, at least until the towers get updated
Sent from my SGH-T989 using xda premium
Click to expand...
Click to collapse
I dont know why im complaining except for the 4G status but i get full 3G and i have no buffering at all on youtube and its so quick. but you think if the towers get some kind of update then maybe 4g might work one day? because i understand if i dont get t-mobiles 4g but what about metro pcs 4g lte

robcop19 said:
I dont know why im complaining except for the 4G status but i get full 3G and i have no buffering at all on youtube and its so quick. but you think if the towers get some kind of update then maybe 4g might work one day? because i understand if i dont get t-mobiles 4g but what about metro pcs 4g lte
Click to expand...
Click to collapse
I can't say for certainty but as of right now any unlocked world phone from a CDMA based network will only pick up 2g or edge network speeds, it may say 3g or even 4g but believe me unless ur in an area where towers have been remapped u will not see anything above 2g ,maybe base 3g ,only because the radio isn't designed to pick up the gsm frequency, now in the near future cdma will be phased out so u may be able to get 4g in the future but not as of now
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No networks listed under *#197328640#

Hi everyone,
I have a SCH-R530C with 4.1.2. I want to unlock it to BRING it to T-Mobile. The phone was originally on Cricket. When I use the "*#197328640# etc, etc..." method.. it does not bring up any options under networks. Is there any solution to this?
Thank you!

Downgrade your baseband.
Samsung patched this in 4.1.2
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Thebigghost said:
Hi everyone,
I have a SCH-R530C with 4.1.2. I want to unlock it to BRING it to T-Mobile. The phone was originally on Cricket. When I use the "*#197328640# etc, etc..." method.. it does not bring up any options under networks. Is there any solution to this?
Thank you!
Click to expand...
Click to collapse
DocHoliday77 said:
Downgrade your baseband.
Samsung patched this in 4.1.2
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Click to expand...
Click to collapse
And this goes without saying usually but use a baseband for SCH-530C, NOT a T-Mobile baseband or you might brick.

Ya that makes sense. With the downgrade does it allow me do the method mentioned above. Also, I don't mean to ask for too much.. But can someone point me in the right direction to find it? This model seems rare.

I'm pretty sure you should be in the Verizon forum, or maybe Sprints.
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It would be Verizon. The model number is exactly the same between the two just Cricket has a C - hard to believe they didn't launch with a 4.1.1 ROM though... Let me do a quick search.
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---------- Post added at 11:11 AM ---------- Previous post was at 11:03 AM ----------
I did the research and MetroPCS uses the same version as cricket. You might try these Odin images from cricket users or post there to see if someone has the original ICS radio or if they know another workaround.
http://www.cricketusers.com/root-re...lashable-cricket-sgs3-touchwiz-firmwares.html
Sent from my SGH-T999 using Tapatalk 4 Beta

EtherealRemnant said:
It would be Verizon. The model number is exactly the same between the two just Cricket has a C - hard to believe they didn't launch with a 4.1.1 ROM though... Let me do a quick search.
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---------- Post added at 11:11 AM ---------- Previous post was at 11:03 AM ----------
I did the research and MetroPCS uses the same version as cricket. You might try these Odin images from cricket users or post there to see if someone has the original ICS radio or if they know another workaround.
http://www.cricketusers.com/root-re...lashable-cricket-sgs3-touchwiz-firmwares.html
Sent from my SGH-T999 using Tapatalk 4 Beta
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That's why I mentioned Verizon first. But it seems it may not be so simple any more.
The recently released Straight Talk SCH-S960 belongs in the Sprint forums. I spent a couple of days helping a couple of people find and verify this.
So it probably does belong in the Verizon area, but w/o looking I can't say for sure.
It seems these latest models are all now shipping with 4.1.2. (T999L, SCH-S960, SCH-R530....)
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---------- Post added at 12:36 PM ---------- Previous post was at 12:35 PM ----------
Oh and the JB 4.1.1 radio should also work. I don't think you need to downgrade all the way to ics.
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DocHoliday77 said:
That's why I mentioned Verizon first. But it seems it may not be so simple any more.
The recently released Straight Talk SCH-S960 belongs in the Sprint forums. I spent a couple of days helping a couple of people find and verify this.
So it probably does belong in the Verizon area, but w/o looking I can't say for sure.
It seems these latest models are all now shipping with 4.1.2. (T999L, SCH-S960, SCH-R530....)
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---------- Post added at 12:36 PM ---------- Previous post was at 12:35 PM ----------
Oh and the JB 4.1.1 radio should also work. I don't think you need to downgrade all the way to ics.
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Click to expand...
Click to collapse
It makes sense that the St version is Sprint - all of their Android phones are Sprint. They don't want to pay what At&t and Verizon want for smartphones. Sprint gives em cheap at wholesale.
The R530 seems to be the same for Verizon, MetroPCS, and Us Cellular. From research, the JB update was a 4.1.2 radio - also some are saying that the ICS radio might not even work with that workaround. The MetroPCS version appears to be the exact same as the Cricket version so it should be safe to flash. Emphasis on should.
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EtherealRemnant said:
It makes sense that the St version is Sprint - all of their Android phones are Sprint. They don't want to pay what At&t and Verizon want for smartphones. Sprint gives em cheap at wholesale.
The R530 seems to be the same for Verizon, MetroPCS, and Us Cellular. From research, the JB update was a 4.1.2 radio - also some are saying that the ICS radio might not even work with that workaround. The MetroPCS version appears to be the exact same as the Cricket version so it should be safe to flash. Emphasis on should.
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Click to expand...
Click to collapse
Right, and that's where the confusion came from. ST was expected to be with Sprint forums, but the SCH, made people think it was Verizon (and a few thought T-Mobile since ST uses their towers in some places apparently). I was just trying to point out that we can't always go by the prefix in the model number anymore. Why they did this.....I wish I knew!
So when they were updated to JB are you saying it skipped 4.1.1? Sorry if I'm getting myself confused or misunderstanding you.
And I'd have to look, but I thought the unlock worked for ics too. But I could be wrong.
Also POSSIBLE, but not recommended, is flashing another models radio. Most of the S3's have the same partition layout. I know several that have flashed other radios w/o bricking. It didn't work, but it didn't hurt anything either. Could it be possible to do this just to unlock, then go back to stock radio?
For example, AT&T users and T-Mobile users have tried each other's radios. All T999 variants can safely flash each other's radios too. They may not work at all, or only partially, but they were able to simply reflash their correct ones. This makes me think that as a last resort it could be attempted. I do not and will not recommend it since I know next to nothing about the 530, but figured I'd throw it out there in case anyone wants to look into it.
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Im confuse isnt it that a CDMA model? Would it actually work with tmobile? Using the global phone hack might help but im not sure.
Also Cricket seems to have similar devices as metropcs. Same hardware too?
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gypsy214 said:
Im confuse isnt it that a CDMA model? Would it actually work with tmobile? Using the global phone hack might help but im not sure.
Also Cricket seems to have similar devices as metropcs. Same hardware too?
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Its the exact same hardware between the two from looking online. And yes its a CDMA phone but to my surprise it has GSM support up to and including HSPA on AWS and LTE!

EtherealRemnant said:
Its the exact same hardware between the two from looking online. And yes its a CDMA phone but to my surprise it has GSM support up to and including HSPA on AWS and LTE!
Click to expand...
Click to collapse
No kidding?!?
So this is like the mother of all gs3's with the ability to function on just about any network?
Now why couldn't they have just done that in the first place?! (No, you don't need to actually answer that!)
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DocHoliday77 said:
No kidding?!?
So this is like the mother of all gs3's with the ability to function on just about any network?
Now why couldn't they have just done that in the first place?! (No, you don't need to actually answer that!)
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Click to collapse
The Us Cellular version actually supports more bands than the Cricket version...
Cricket: Frequencies and Data Type: LTE Dual-band: Band 2 (1900MHz), Band 4 (AWS); CDMA 1x/EVDO Rev A, Tri-band: 800/AWS/1900MHz*
Us Cellular: Frequencies and Data Type: LTE Quad-band : Band 2 (1900MHz), Band 4 (AWS), Band 5 (850MHz), Band 12 (700MHz) CDMA 1x/EVDO Rev A, Tri-band : 800/AWS/1900MHz*
We got ripped for sure.
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I wish one day they will just sale you one hardware with all carriers bands enable and none carrier branded. LTE phones now days uses a sim card to get data and works with calls too. Make it like international here in the us. Buy a phone and your free to use it on any carrier lmao. One hardware for all. No more difference between the international and us. Now newer devices are like that. Like the htc one and the s4 but we still need carrier approval for updates. Also I dont see why carriers have to put bloatware on phones when you can get them on the play store.

gypsy214 said:
I wish one day they will just sale you one hardware with all carriers bands enable and none carrier branded. LTE phones now days uses a sim card to get data and works with calls too. Make it like international here in the us. Buy a phone and your free to use it on any carrier lmao. One hardware for all. No more difference between the international and us. Now newer devices are like that. Like the htc one and the s4 but we still need carrier approval for updates. Also I dont see why carriers have to put bloatware on phones when you can get them on the play store.
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The biggest issue is all the different frequencies in use... And its going to get worse with the 600 spectrum sale. There are an insane amount of bands and technologies in use.
And then there are companies like Verizon that are anti-consumer... That's not going anywhere.

Correct me if I'm wrong, but I thought the S4 was the same as the S3 regarding international vs US. I heard its more compatible between US versions, but not with international since it once again gets the best processor (Exynos octo core) while we get the Qualcomm quad core one. This time we don't even get more memory. Still 2GB.
The international also uses a different graphics processor. Not sure if it's better, but it is different.
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---------- Post added at 11:16 AM ---------- Previous post was at 11:11 AM ----------
Just saw this and thought I'd share. A newer S4.
http://mobile.reuters.com/article/idUSBRE95G05I20130617?irpc=932
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DocHoliday77 said:
Correct me if I'm wrong, but I thought the S4 was the same as the S3 regarding international vs US. I heard its more compatible between US versions, but not with international since it once again gets the best processor (Exynos octo core) while we get the Qualcomm quad core one. This time we don't even get more memory. Still 2GB.
The international also uses a different graphics processor. Not sure if it's better, but it is different.
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---------- Post added at 11:16 AM ---------- Previous post was at 11:11 AM ----------
Just saw this and thought I'd share. A newer S4.
http://mobile.reuters.com/article/idUSBRE95G05I20130617?irpc=932
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Click to expand...
Click to collapse
The US and most of the world are all on Qualcomm chips in the S4. Korea got the Exynos as did most of Africa and Asia in general while the US, Canada, and Europe all got Qualcomm.
That new S4 would be perfect for T-Mobile once they have lit up full LTE since they're deploying LTE-Advanced out the gate.

EtherealRemnant said:
The US and most of the world are all on Qualcomm chips in the S4. Korea got the Exynos as did most of Africa and Asia in general while the US, Canada, and Europe all got Qualcomm.
That new S4 would be perfect for T-Mobile once they have lit up full LTE since they're deploying LTE-Advanced out the gate.
Click to expand...
Click to collapse
ok, I wasn't sure about that, thanks for clarifying it. It's no wonder sales aren't meeting expectations. It's basically the international S3 with US memory! (I know there's more to it, but when you really simplify it....)
I was thinking the same on the new S4. Don't see any indication one way or another if T-Mobile will actually get it though. And oh how I hope we do!
I can potentially see many unhappy original S4 buyers soon! (Look how upset some are over the T999L!)
I'll leave it there on my end, seeing as we are now just a little bit off topic!
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EtherealRemnant said:
The US and most of the world are all on Qualcomm chips in the S4. Korea got the Exynos as did most of Africa and Asia in general while the US, Canada, and Europe all got Qualcomm.
That new S4 would be perfect for T-Mobile once they have lit up full LTE since they're deploying LTE-Advanced out the gate.
Click to expand...
Click to collapse
Yeah like I said before.. The US GS4 being able to flash roms from the International is a huge + for me.
How about that iPhone? I always heard that it supports all global bands? If Samsung didnt had several different hardware between the phones like for international and us. It would be easier for them to push updates. And be cheaper for them too.. Not having to work on several hardware difference for an update. Maybe they got that idea and started to make the phones with same hardware like the S4.. I was waiting for fathers day to see if tmobile would have an offer for the s4 and they didnt

gypsy214 said:
Yeah like I said before.. The US GS4 being able to flash roms from the International is a huge + for me.
How about that iPhone? I always heard that it supports all global bands? If Samsung didnt had several different hardware between the phones like for international and us. It would be easier for them to push updates. And be cheaper for them too.. Not having to work on several hardware difference for an update. Maybe they got that idea and started to make the phones with same hardware like the S4.. I was waiting for fathers day to see if tmobile would have an offer for the s4 and they didnt
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Click to collapse
T-Mobile's "offer" for the iPhone 5 wasn't even really an offer anyway - its all based on their trade in program now. But they did slash 50 bucks off the S4 until 7/30 when it goes back to 149 down and 20 a month.
As for the iPhone being global, didn't they have some super custom crazy modem made for that though?