Develop Bugs

Flash a T-mobile modem in the SG3 international

Or even flash it in At&T SG3. Samsung said the hardware are the same and have all the frequencies. i believe it might not be advertised this way from the carriers. Just thinking out loud.

Sorry i posted in the wrong section. Admin please move to Q&A
sorry again

Eh, I dont think so. Not at first anyway... after some hackery it might be possible.

The US versions are all the same.
The International version is very different.
It will never work.

I have yet to get 5 bars on my SGS3. Kinda odd.

Not a good idea as someone already stated they're different. I did that once by accident with the original galaxy s. Flashed the canadian firmware for the US version of the phone and ended up bricking it. Not even a jig bought it back to life.

It should work with the at&t and t-mobile sgs3 just like with the skyrocket and t-mobile's sgs2

htc fan89 said:
It should work with the at&t and t-mobile sgs3 just like with the skyrocket and t-mobile's sgs2
Click to expand...
Click to collapse
Are you sure? Can you reference someone or someplace that has had success with this?

}{Alienz}{ said:
Are you sure? Can you reference someone or someplace that has had success with this?
Click to expand...
Click to collapse
The Skyrocket forums.. the AT&T Note also works because it also has the same SoC. The international version will never work with AWS though.
Sent from my GT-I9300 using Tapatalk 2

... if this is true, I'm getting an AT&T S3 at retail and then flash the radio to T-Mobile.
Chances are I won't resist temptation and get the t-mobile one anyway

Lekz said:
... if this is true, I'm getting an AT&T S3 at retail and then flash the radio to T-Mobile.
Chances are I won't resist temptation and get the t-mobile one anyway
Click to expand...
Click to collapse
It hasn't been tested yet on the S3. And while it works on the Note, it is far from optimal. I have not read since the early stages but it would freeze and get awful battery life on T-Mobile.
Sent from my GT-I9300 using Tapatalk 2

The US [GSM] models, ok. The international model, 100% no.
And as I understood, the T-Mobile version is pentaband out of the box (it will get AT&T 3G/4G 1900 MHz) because T-Mobile is moving to that frequency. So if anything, get the T-Mobile one and use it on AT&T if you don't care about LTE.

Product F(RED) said:
The US [GSM] models, ok. The international model, 100% no.
And as I understood, the T-Mobile version is pentaband out of the box (it will get AT&T 3G/4G 1900 MHz) because T-Mobile is moving to that frequency. So if anything, get the T-Mobile one and use it on AT&T if you don't care about LTE.
Click to expand...
Click to collapse
what about the other way around, since at&t version is cheaper to get than t-mobile? My skyrocket had good battery life when I flashed t-mobile radio on to it...not sure about the note

htc fan89 said:
what about the other way around, since at&t version is cheaper to get than t-mobile? My skyrocket had good battery life when I flashed t-mobile radio on to it...not sure about the note
Click to expand...
Click to collapse
The Note had abysmal battery life from what I read. Just wait for someone to do it (they will) so you don't have to possibly return whichever one you buy.

joshnichols189 said:
It hasn't been tested yet on the S3. And while it works on the Note, it is far from optimal. I have not read since the early stages but it would freeze and get awful battery life on T-Mobile.
Sent from my GT-I9300 using Tapatalk 2
Click to expand...
Click to collapse
Well the At&T Galaxy Note is what inspired me to think it might be doable!! The At&T Note i have is working fine with Simple Mobile and picking up 4g all the way. the battery sucks anyways even with the At&T modem. Also, you guys should note that stationed in Kuwait and im using the At&T Note with T-mobile modem overseas and still working great. Yes i have 3G as they dont have 4G here. they funny thing is that i still shows 4G and run about 19Mbps in most places.
I can get the international SGIII in Kuwait for $250 16G unlocked (NICE RIGHT?) but when im home i use the Simple mobile network(T-mobile).
you can call it greed but i want to have 2GB RAM, LTE, T-mobile 4G and the ablity to use every network in the world
I hope someone can make this happen

The reason it worked with the AT&T Note is because the T-Mobile S2 used the same SoC (Snapdragons S3). The US Galaxy S3's have Snapdragon S4's, the International has an Exynos 4412. The SoC's (CPU, RAM, Radios, DAC) are COMPLETELY different. It will NOT work. It's not software magic that got the Note to work. It's the fact that it supported the 1700 MHz frequency. The Exynos SoC's radio doesn't. You'll end up bricking the phone and requiring a JTAG.
Sent from my GT-I9300 using XDA Premium HD app

Product F(RED) said:
The reason it worked with the AT&T Note is because the T-Mobile S2 used the same SoC (Snapdragons S3). The US Galaxy S3's have Snapdragon S4's, the International has an Exynos 4412. The SoC's (CPU, RAM, Radios, DAC) are COMPLETELY different. It will NOT work. It's not software magic that got the Note to work. It's the fact that it supported the 1700 MHz frequency. The Exynos SoC's radio doesn't. You'll end up bricking the phone and requiring a JTAG.
Sent from my GT-I9300 using XDA Premium HD app
Click to expand...
Click to collapse
No one listens to me :'( thanks for the backup Fred. Haha
Sent from my GT-I9300 using Tapatalk 2

To be fair, I never meant the International S3
Sent from my HTC Sensation 4G using Tapatalk 2

Product F(RED) said:
The US [GSM] models, ok. The international model, 100% no.
And as I understood, the T-Mobile version is pentaband out of the box (it will get AT&T 3G/4G 1900 MHz) because T-Mobile is moving to that frequency. So if anything, get the T-Mobile one and use it on AT&T if you don't care about LTE.
Click to expand...
Click to collapse
Can you please confirm this, if I get the T-mobile version, and get it unlocked and use my existing AT&T sim on it, it will get 3G/4G speeds?. Would the international version also not give the same?. 4G speeds with AT&T?.
Thanks.

RizSher said:
Can you please confirm this, if I get the T-mobile version, and get it unlocked and use my existing AT&T sim on it, it will get 3G/4G speeds?. Would the international version also not give the same?. 4G speeds with AT&T?.
Thanks.
Click to expand...
Click to collapse
I'm using the i9300 (International) on Straight Talk AT&T, which runs on AT&T's base network, and I get full HSPA+ (of course, no LTE). The i9300 runs on AT&T's bands, so if you used it on T-Mobile you'd only get EDGE (for now, because they're moving their network onto the same frequency as AT&T). If the T-Mobile version is indeed pentaband as I suspect, then unlocking it and using it on AT&T will give you the same data speeds as using the international version on AT&T.

How to check if my phone supports LTE or not

I bought Galaxy Nexus from somewhere else. It was unlocked. So i am not sure if it supports LTE over Fido or not. I was thinking to request for LTE sim but wanted to confirm if my phone even supports it or not.
I do see H+ on my signal bar but i believe LTE is different. Can someone tell me any way to confirm if the device supports LTE or not. (without connecting to LTE network)

It's really simple.
If it is a gsm phone it does not have lte
Sent from my Galaxy Nexus

Turn the phone off then remove the battery and read the label where the battery goes and if it reads GT-i9250 or GT-i950M it will not support LTE.

Pirateghost said:
It's really simple.
If it is a gsm phone it does not have lte
Sent from my Galaxy Nexus
Click to expand...
Click to collapse
lol .. so would it be safe to assume that my Galaxy Nexus supports LTE ?

..alee said:
I bought Galaxy Nexus from somewhere else. It was unlocked. So i am not sure if it supports LTE over Fido or not. I was thinking to request for LTE sim but wanted to confirm if my phone even supports it or not.
I do see H+ on my signal bar but i believe LTE is different. Can someone tell me any way to confirm if the device supports LTE or not. (without connecting to LTE network)
Click to expand...
Click to collapse
AFAIK the only LTE gNex are for Verizon & Sprint (CDMA in the US). If you look at Setting >> About Phone >> Baseband * it starts out I9250 it's the GSM model

ebagdirtbike said:
Turn the phone off then remove the battery and read the label where the battery goes and if it reads GT-i9250 or GT-i950M it will not support LTE.
Click to expand...
Click to collapse
Thats a more discrete answer
Model Number: GT-I9250
GT-i9250 "Maguro": GSM/HSPA+ variant. Features support for both AT&T's and T-Mobile's HSPA+ bands in the United States. This particular variant is currently sold SIM-unlocked by Google in the Play Store
Thanks though

..alee said:
lol .. so would it be safe to assume that my Galaxy Nexus supports LTE ?
Click to expand...
Click to collapse
Not that i like and want bash you, but can't you understand simple English?
I assume you understand English since you're from Canada.. If you don't understand English, then fine, i take back my words.
And a simple Google search would answer your question..

..alee said:
lol .. so would it be safe to assume that my Galaxy Nexus supports LTE ?
Click to expand...
Click to collapse
You do know what gsm and cdma are right?
You do have Google in Canada?
Sent from my Galaxy Nexus

the "Baseband version " on my nexus 5 shows "M8974A-", does it support lte in US? It's an international unlocked version cell phone, and AFAIK, all the international version phones DONT support lte in US, is that real?

[Q] Does UK Gnex Have LTE???

Sorry if this has been asked before, however, I just came across the US Samsung GNex page and discover a LTE version of my trusted Sammy GNex i9250.
What I am wondering is.. Is it a totally different phone or do our GNex's have LTE hidden away that no one knew about and will just need it activating when 4G LTE is available on the right frequency?
Remember I am talking about UK GSM versions and LTE/4G in the UK.
Thanks

The gnex is not like the n4 in that SoC of the gnex doesn't have any lte integrated into the chip. So no, the gsm gnex doesn't have anything lte related.
Sent from my Galaxy Nexus using Tapatalk 2

sferg.410 said:
Sorry if this has been asked before, however, I just came across the US Samsung GNex page and discover a LTE version of my trusted Sammy GNex i9250.
What I am wondering is.. Is it a totally different phone or do our GNex's have LTE hidden away that no one knew about and will just need it activating when 4G LTE is available on the right frequency?
Remember I am talking about UK GSM versions and LTE/4G in the UK.
Thanks
Click to expand...
Click to collapse
Unfortunately it doesn't

Unlocked AT&T Note 2 On T-Mobile?

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....

[Q] Cel-Fi Signal Booster + Verizon S4 + TMobile Sim Card = HELP

Hey Guys,
Not sure where to ask at this point, but I know that there is a Verizon forum for the S4, but this is more T-Mobile inclined question.
My mom was given an S4 at her job from Verizon but I convinced her to give it to me since I wanted it and I gave her my Tmobile Note 2.
I put my sim card into the Verizon S4 and configured the APN setting so now im getting faster data speeds with the Verizon S4 than I was with my Tmobile Note 2. So everything works but the phone is in Global mode, which I dont really care at this point.
My question is though, how can I get the Verizon S4 to connect to the Tmobile signal cel-fi booster that I have. I have no service at my job so therefore I obtained one of the boosters offered by Tmobile, works great with my Note 2, but the S4 does not recognize the cel-fi booster.
Please advise...

I guessing the cell fi thing is for tmobile phone only. I'm sure tmobile don't want just anyone to use their products.
It's probably a firmware deal and not the SIM that recognized the cell fi.
☞ Sent from here☜???

Yes, I definitely understand that, but I am using a TMobile sim card, logged into Tmobile towers, using Tmobile 4G LTE network, but the hardware/firmware is Verizon, so that is why I am asking if it is doable to get this working? Perhaps if flashing a rom or something?

elite-fusion said:
Yes, I definitely understand that, but I am using a TMobile sim card, logged into Tmobile towers, using Tmobile 4G LTE network, but the hardware/firmware is Verizon, so that is why I am asking if it is doable to get this working? Perhaps if flashing a rom or something?
Click to expand...
Click to collapse
Could it be a hardware issue? Tmobile special band which does noy jave in the verizon phone?
Sent from my SGH-M919 using xda premium

I don tknow, thats why im asking you guys lol

elite-fusion said:
I don tknow, thats why im asking you guys lol
Click to expand...
Click to collapse
Your best bet is to call T Mobile tech support and ask them. You've got a really obsscure question that probably has to deal with the frequencies the 2 devices communicate on that no one here has probably ever dealt with. T Mobile is going to be the quickest way to get this answer.

The T-Mobile cel-fi operates at the 1700MHz aws frequencies. According to this thread they are not enabled by default on the Verizon galaxy s4. So that's why it's not picking up the signal from the cel-fi.
Sent from my SGH-M919 using Tapatalk

Cel-Fi RS1 vs RS2
elesbb said:
The T-Mobile cel-fi operates at the 1700MHz aws frequencies. According to this thread they are not enabled by default on the Verizon galaxy s4. So that's why it's not picking up the signal from the cel-fi.
Sent from my SGH-M919 using Tapatalk
Click to expand...
Click to collapse
Guys,
I work for Cel-Fi - it looks like you are correct.
The RS2 Cel-Fi (the latest one) will boost 2 bands: 1.9GHz (aka PCS, Band 2) + AWS
BUT the older RS1 (we dont sell it anymore) will only boost AWS and not Band 2...
Check here for details on the Bands 2 and 4, and here for definitions of the bands...
It looks like the S4 gets 1900 band 2 (specs S4 for T-Mobile UMTS: Band I (2100);UMTS/HSPA+: AWS Band IV / 2100 / 1900 / 850;Band II (1900);Quad Band GSM;LTE)
Let us know which Cel-Fi you have...
Regards,
Laurent

laurent.gil said:
Guys,
I work for Cel-Fi - it looks like you are correct.
The RS2 Cel-Fi (the latest one) will boost 2 bands: 1.9GHz (aka PCS, Band 2) + AWS
BUT the older RS1 (we dont sell it anymore) will only boost AWS and not Band 2...
Check here for details on the Bands 2 and 4, and here for definitions of the bands...
It looks like the S4 gets 1900 band 2 (specs S4 for T-Mobile UMTS: Band I (2100);UMTS/HSPA+: AWS Band IV / 2100 / 1900 / 850;Band II (1900);Quad Band GSM;LTE)
Let us know which Cel-Fi you have...
Regards,
Laurent
Click to expand...
Click to collapse
I have the RS1 (older one) got it for 90 bucks on ebay
Works great!
And since you work for Cel-Fi, does the RS2 model boost the LTE signal for T-Mobile or not? From what i am reading, it does not.

Sorry for my ignorance but how is the Verizon Galaxy S4 able to connect to T Mobile let alone LTE? Is Verizon S4 a pentaband phone? I think my knowledge is outdated but I was under the impression that Verizon uses CDMA

utsc said:
Sorry for my ignorance but how is the Verizon Galaxy S4 able to connect to T Mobile let alone LTE? Is Verizon S4 a pentaband phone? I think my knowledge is outdated but I was under the impression that Verizon uses CDMA
Click to expand...
Click to collapse
They do, it switches to global mode (GSM) when you insert a non-verizon sim.. Most CDMA smartphones have this capability nowadays, which they did not before.. Verizon is the only carrier I know that does not lock the gsm radio on their phones, I think Sprint's phones are sim locked
Sent from my SGH-M919 using Tapatalk

I'll sell the new cell-fi
Sent from my SGH-M919 using xda app-developers app