Develop Bugs

Traveling to Korea with the S 3

Hey all. I am looking to purchase a galaxy s 3. Would a t mobile galaxy work over seas or do I need an international one? Thanks.

Yes, it will work. The T-Mobile S III has quad-band GSM/EDGE/HSPA+ support.

So in that case id be better off buying one out of contract and using one of the Korean providers when I go over seas? Do you know if the international one would work?

thegameksk said:
So in that case id be better off buying one out of contract and using one of the Korean providers when I go over seas? Do you know if the international one would work?
Click to expand...
Click to collapse
Either version will work. Both are quad-band GSM/EDGE/HSPA+. The difference is that the T-Mobile version supports 1700 MHz HSPA+, while the international version ditches that, and supports 900 MHz HSPA+ instead.

aNYthing24 said:
Either version will work. Both are quad-band GSM/EDGE/HSPA+. The difference is that the T-Mobile version supports 1700 MHz HSPA+, while the international version ditches that, and supports 900 MHz HSPA+ instead.
Click to expand...
Click to collapse
What exactly does 1700 MHz HSPA+ and 900 MHz HSPA mean??? Everything ive found says GSM phones dont work but those were outdated by a few years. Did GSM phones just start working there recently?

aNYthing24 said:
Yes, it will work. The T-Mobile S III has quad-band GSM/EDGE/HSPA+ support.
Click to expand...
Click to collapse
You mean it's penta-band has the extra aws band and it should work in korea if they use the same bands like europe

htc fan89 said:
You mean it's penta-band has the extra aws band and it should work in korea if they use the same bands like europe
Click to expand...
Click to collapse
It's not penta-band. It doesn't have 900 MHz HSPA+ support.
thegameksk said:
What exactly does 1700 MHz HSPA+ and 900 MHz HSPA mean??? Everything ive found says GSM phones dont work but those were outdated by a few years. Did GSM phones just start working there recently?
Click to expand...
Click to collapse
Those are just bands that the phones support. And GSM is a world standard, it should work in Korea, and HSPA+ should work too as it supports the 2100 MHz band.

Wifi calling is an option too.

[Q] Using AT&T Galaxy Note 2 in India (3G/UMTS)

Hi,
I searched whole Galaxy Note 2 Forums for my question but did not get direct answer. My question is
Can I use AT&T Galaxy Note 2 (SGH-i317) in India and get 3g data as is without making any modification to Bands?
or
Should I enable AWS (TMobile 3g/4g) bands in this phone to use 3G in India.
If anybody is using this phone in India, let me know how / which carrier in India are you using.

thershope said:
Hi,
I searched whole Galaxy Note 2 Forums for my question but did not get direct answer. My question is
Can I use AT&T Galaxy Note 2 (SGH-i317) in India and get 3g data as is without making any modification to Bands?
or
Should I enable AWS (TMobile 3g/4g) bands in this phone to use 3G in India.
If anybody is using this phone in India, let me know how / which carrier in India are you using.
Click to expand...
Click to collapse
Depends what bands your carrier uses. The phone (without the AWS hack) supports 850/900/1900/2100 MHz for 3G.

Product F(RED) said:
Depends what bands your carrier uses. The phone (without the AWS hack) supports 850/900/1900/2100 MHz for 3G.
Click to expand...
Click to collapse
I thought it supports only triband for 3g (900MHz being unavailable). Can you please confirm that SGH-i317 supports 900MHz for 3G.

thershope said:
I thought it supports only triband for 3g (900MHz being unavailable). Can you please confirm that SGH-i317 supports 900MHz for 3G.
Click to expand...
Click to collapse
I can't confirm that it actually works, other than this screenshot from my i317 (I did the AWS hack, which is why 1700 MHz comes up). GSM carriers in the US use 850/1900 (AT&T) and 1700/1900/2100 (T-Mobile) for 3G. So I can't see if 900 MHz works:
http://db.tt/WTFsWwwa
However, I don't think the phone will show bands that it doesn't support, so it should work. I have a hard time believing the phone is only Tri-Band, when my Galaxy S3 i9300 is quad-band (850/900/1900/2100 MHz) UMTS.
I know that the Verizon version works with 900 MHz because on Samsung's websites, it's quad-band UMTS. Yes, the Verizon version can also do GSM. It comes unlocked as well. You just have to use root and an APN application to add your carrier's APN, or just install a custom ROM that enables the APN menu.

I actually had the exact opposite question. I am planning on buying the Galaxy Note II (N7100) in India and I wanted to know if the 3G facility would work for any GSM provider in the United States?? I wanted to know if all the N7100 models (including the ones in India) are Quad band 3G. If so I guess the AT&T 3G should work as quad band would be compatible with the 850/1900 frequencies used by AT&T. Any help in this regard would be appreciated. I hope to be in the US from September for studies and thus wanted to be sure Id be able to use this phone for 3G there.

garam_masala said:
I actually had the exact opposite question. I am planning on buying the Galaxy Note II (N7100) in India and I wanted to know if the 3G facility would work for any GSM provider in the United States?? I wanted to know if all the N7100 models (including the ones in India) are Quad band 3G. If so I guess the AT&T 3G should work as quad band would be compatible with the 850/1900 frequencies used by AT&T. Any help in this regard would be appreciated. I hope to be in the US from September for studies and thus wanted to be sure Id be able to use this phone for 3G there.
Click to expand...
Click to collapse
It works on AT&T 3G. Correct.
Sent from my Galaxy Note 2

Im using the att note 2 i317 in india on airtel network. Currently on cleanrom MA4 . Speed is decent. I get anywhere between 4 to 8 mbps during good signal
Sent from my SAMSUNG-SGH-I317 using Tapatalk 2

Thanks for confirming. I was worried that I will miss out on 3g because of this 900MHz.
moinsheriff said:
Im using the att note 2 i317 in india on airtel network. Currently on cleanrom MA4 . Speed is decent. I get anywhere between 4 to 8 mbps during good signal
Sent from my SAMSUNG-SGH-I317 using Tapatalk 2
Click to expand...
Click to collapse

thershope said:
Hi,
I searched whole Galaxy Note 2 Forums for my question but did not get direct answer. My question is
Can I use AT&T Galaxy Note 2 (SGH-i317) in India and get 3g data as is without making any modification to Bands?
or
Should I enable AWS (TMobile 3g/4g) bands in this phone to use 3G in India.
If anybody is using this phone in India, let me know how / which carrier in India are you using.
Click to expand...
Click to collapse
I travel India frequently and have US (AT&T) and India (Vodaphone) SIM, I just swap the sim and everything works great. I am on cleanrom 4.8. No issues and great Internet speed in Mumbai. Even I was able to do RDC without any issues.

Thanks.
nughtynick said:
I travel India frequently and have US (AT&T) and India (Vodaphone) SIM, I just swap the sim and everything works great. I am on cleanrom 4.8. No issues and great Internet speed in Mumbai. Even I was able to do RDC without any issues.
Click to expand...
Click to collapse

ATT Note 2 in India
Guys i am using ATT Note 2 in India and i am not able to pick up 3G frequencies here.. My phone is unlocked from ATT but i still only get to use 2G,. I would appreciate if anyone can help me here. How do i get to 3G here.? i am using a vodafone sim.

[Q] GSM/HSDPA/LTE bands for T-Mobile S4 (SGH-M919)

Hi there,
Can anyone confirm for sure and tested the following question:
How many bands for GSM, HSDPA and LTE does the T-Mobile Galaxy S4 (M919) have? Are they the same bands as the International S4 LTE (I9505)?
Based on the wikipedia page for Samsung Galaxy S4, the model I9505 has more LTE bands than the T-Mobile M919 version, is that completely true and technically proven?
Most of the websites state that the M919 and the I9505 has the same bands for all GSM, HSDPA and LTE.
I appreciate if someone can lead me to the ultimate answer.
Thanks.

Tmobile uses AWS for 4g LTE which requires 2100/1700 frequency. The GT-i9505 only supports 2100mhz i believe, which is not enough.
I think the GT-i9505 supports one of the several frequencies that Tmobile uses for HDSPA, so HDSPA coverage may be a bit spotty with the phone. This was referenced off the top of my head, but I had done some research online about this before as I had similar questions as you.

Please read forum rules before posting
Questions and help issues go in Q&A and Help section
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Here's an article on the frequencies that just came out that may help you OP.

tikoracer said:
Hi there,
Can anyone confirm for sure and tested the following question:
How many bands for GSM, HSDPA and LTE does the T-Mobile Galaxy S4 (M919) have? Are they the same bands as the International S4 LTE (I9505)?
Based on the wikipedia page for Samsung Galaxy S4, the model I9505 has more LTE bands than the T-Mobile M919 version, is that completely true and technically proven?
Most of the websites state that the M919 and the I9505 has the same bands for all GSM, HSDPA and LTE.
I appreciate if someone can lead me to the ultimate answer.
Thanks.
Click to expand...
Click to collapse
You can find all the information on the Wiki page: https://en.wikipedia.org/wiki/Samsung_Galaxy_S4
I9505 lacks the 1700MHz LTE band which is needed in T-Mobile LTE.

That's weird, I can swear that wiki page had different information yesterday about the I9505 LTE bands
macaumen said:
You can find all the information on the Wiki page
I9505 lacks the 1700MHz LTE band which is needed in T-Mobile LTE.
Click to expand...
Click to collapse

Hey so looking at the wiki that you guys posted up there it says following for the tmobile version: 700 MHz (Band 17), CLR, AWS, PCS, IMT, IMT-E
now i somehow got my hand on one of these devices in europe for rather cheap and totally new, so im confused now what these CLR, AWS, PCS, IMT, IMT-E are, does any of these stand for any other than the 700mhz band? like 1700/1800mhz? or in other words, is it possible to get lte to work in europe with the tmobile usa s4? Can the modem perhaps be flashed with an i9505 one and than get the additional bands or is the hardware actualyl that different (as in antennas and amplifiers)?
Its not really a dealbreaker for me as LTE in my country is quite some time away but still, would like to know.
thanks

In simple words, the LTE bands are (not in order): Band 1 (2100), Band 2 (1900), Band 4 (1700), Band 5 (850), Band 7 (2600), Band 17 (700), so we have the LTE bands available for the T-Mobile version: 700, 850, 1700, 1900, 2100 and 2600.
crnkoj said:
Hey so looking at the wiki that you guys posted up there it says following for the tmobile version: 700 MHz (Band 17), CLR, AWS, PCS, IMT, IMT-E
now i somehow got my hand on one of these devices in europe for rather cheap and totally new, so im confused now what these CLR, AWS, PCS, IMT, IMT-E are, does any of these stand for any other than the 700mhz band? like 1700/1800mhz? or in other words, is it possible to get lte to work in europe with the tmobile usa s4? Can the modem perhaps be flashed with an i9505 one and than get the additional bands or is the hardware actualyl that different (as in antennas and amplifiers)?
Its not really a dealbreaker for me as LTE in my country is quite some time away but still, would like to know.
thanks
Click to expand...
Click to collapse

tikoracer said:
In simple words, the LTE bands are (not in order): Band 1 (2100), Band 2 (1900), Band 4 (1700), Band 5 (850), Band 7 (2600), Band 17 (700), so we have the LTE bands available for the T-Mobile version: 700, 850, 1700, 1900, 2100 and 2600.
Click to expand...
Click to collapse
sorry for asking it again, but that basically means the tmobile version has most bands that are used enabled? just have to figure what bands are being used in my country... thanks really
edit: checked the bands here naturally its 800 and 1800, so my question remains, can i somehow flash the phone to work on these?

Check the picture attached, this photo is from the original T-Mobile US Samsung Galaxy S4 (M919) box.
crnkoj said:
sorry for asking it again, but that basically means the tmobile version has most bands that are used enabled? just have to figure what bands are being used in my country... thanks really
edit: checked the bands here naturally its 800 and 1800, so my question remains, can i somehow flash the phone to work on these?
Click to expand...
Click to collapse

No, you can't flash a I9505 rom to a M919 device, if you do, you will brick it. The best option for you to get 800 and 1800 frequencies is to go for the GT-I9505, it's the Samsung Galaxy S4 LTE version, and it has the following bands for LTE Cat 3 (800 / 850 / 900 / 1,800 / 2,100 / 2,600 MHz). This is the official Samsung page: http://www.samsung.com/au/consumer/mobile-phone/mobile-phone/smartphone/GT-I9505ZKAXSA-spec
crnkoj said:
sorry for asking it again, but that basically means the tmobile version has most bands that are used enabled? just have to figure what bands are being used in my country... thanks really
edit: checked the bands here naturally its 800 and 1800, so my question remains, can i somehow flash the phone to work on these?
Click to expand...
Click to collapse

Yes, it seems that the I9505 has LTE bands for each region, it's not dedicated for America (North, Central and South), it also support Europe and Asia, while it doesn't contain most bands for a specific region, it's a world phone, unlucky doesn't fully support T-Mobile 4G UTMS network (1700/2100), but still a good option for those who travel to other continents.
sleik said:
Tmobile uses AWS for 4g LTE which requires 2100/1700 frequency. The GT-i9505 only supports 2100mhz i believe, which is not enough.
I think the GT-i9505 supports one of the several frequencies that Tmobile uses for HDSPA, so HDSPA coverage may be a bit spotty with the phone. This was referenced off the top of my head, but I had done some research online about this before as I had similar questions as you.
Click to expand...
Click to collapse

Flashing just the modem doesn't work either?

I haven't tried flashing modems into another devices that don't correspond to their own. I can't help you with that answer at this time
crnkoj said:
Flashing just the modem doesn't work either?
Click to expand...
Click to collapse

tikoracer said:
I haven't tried flashing modems into another devices that don't correspond to their own. I can't help you with that answer at this time
Click to expand...
Click to collapse
i asked that because i have an att atrix, on which its possible to flash european modems without a problem, thanks for your time man, i hope someone will try this and it works

Question...are all those other things i've been hearing about other ppl successfully getting 4g reception after doing something to either with the aws band's, or to the software true? does anyone know for sure? i'm very thankful for any input, as i've been hearing so many conflicting things when it comes to the i9505 and getting 4g service with t-mobile, i just want a proven answer :/
Sent from my GT-I9505 using xda app-developers app
Sent from my GT-I9505 using xda app-developers app

nycemc said:
Question...are all those other things i've been hearing about other ppl successfully getting 4g reception after doing something to either with the aws band's, or to the software true? does anyone know for sure? i'm very thankful for any input, as i've been hearing so many conflicting things when it comes to the i9505 and getting 4g service with t-mobile, i just want a proven answer :/
Sent from my GT-I9505 using xda app-developers app
Sent from my GT-I9505 using xda app-developers app
Click to expand...
Click to collapse
T-mobile is 4g lte and super fast
Sent from my SGH-M919 using XDA Premium 4 mobile app

crnkoj said:
Hey so looking at the wiki that you guys posted up there it says following for the tmobile version: 700 MHz (Band 17), CLR, AWS, PCS, IMT, IMT-E
now i somehow got my hand on one of these devices in europe for rather cheap and totally new, so im confused now what these CLR, AWS, PCS, IMT, IMT-E are, does any of these stand for any other than the 700mhz band? like 1700/1800mhz? or in other words, is it possible to get lte to work in europe with the tmobile usa s4? Can the modem perhaps be flashed with an i9505 one and than get the additional bands or is the hardware actualyl that different (as in antennas and amplifiers)?
Its not really a dealbreaker for me as LTE in my country is quite some time away but still, would like to know.
thanks
Click to expand...
Click to collapse
I bought my S4 T-mobile (SGH-M919) in USA. And it is fine working in Spain with 4G. But when i have upgraded it to Marshmallow then only works with HSPA(H+) as better. Change baseband? i am not sure to do it...mmmm

[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

How to use Sprint note 4 on LTE bands 3 and 7?

Hello!
I have an unlocked sprint note 4 which I use outside the USA as a GSM phone with a sim card.
So far so good.
The problem is that this phone being produced for sprint does not connect on 4G.
I have been reading about the possibility to change the NV values to be able to add LTE bands to the phone and I was able to change those values but still no luck.
In my country, the 4g network works mostly on bands 3 and 7 (1800 and 2600).
I am starting to think that probably the sprint version might have differences in hardware with other 4G capable phones.
Can anybody tell if there are any hardware differences between the sprint note 4 and other note 4 models.
Do you think that the sprint note 4 has what its needed to connect on 4G on the above frequencies?
If yes, what might be the right approach to try to resolve this.
Thank you for reading and since this is my first post on XDA please help me!

Yes, because of Sprint Spark it only uses 26 and 41 bands, 1900mhz and 2.5ghz respectively. FDD-LTE and TD-LTE are unique to Sprint and they are big enough to have the phones shipped this way. For flexability yoh should move to a GSM model phone.

Marq221 said:
Yes, because of Sprint Spark it only uses 26 and 41 bands, 1900mhz and 2.5ghz respectively. FDD-LTE and TD-LTE are unique to Sprint and they are big enough to have the phones shipped this way. For flexability yoh should move to a GSM model phone.
Click to expand...
Click to collapse
Heh, what you think about this thread.
Especially about the history of success adding LTE bands 4/14 in SGS5 SM-G900P from Sprint?
Samsung SM-G900F - added LTE band 4. Confirmed operation on new band
Samsung SM-G900P - added LTE band 4/14
Samsung SM-G906L - added LTE band 4
Click to expand...
Click to collapse

spinxus said:
Heh, what you think about this thread.
Especially about the history of success adding LTE bands 4/14 in SGS5 SM-G900P from Sprint?
Click to expand...
Click to collapse
Its worth giving a try for sure. You do run the risk of bricking your NV and losing signal altogether. However, I have done this successfully using DFS CDMA Tools on an old Samsumg Cappy from AT&T back in the day. *Disclaimer: proceed at your own risk*

After further review, and some trial and error, the above listed mod only works with GSM phones. Your Note is a CDMA version. Please do not try.

Marq221 said:
After further review, and some trial and error, the above listed mod only works with GSM phones. Your Note is a CDMA version. Please do not try.
Click to expand...
Click to collapse
I understand but since my note is a CDMA how can you explain that it works fine for GSM and data in 3g ?
What might be the hardware difference with the international version that does not allow my phone to work in 4g in my network?
I am assuming that they use the same chip-set and the problem is only soft based.