[Q] Can I use my AT&T SGS3 When I visit China/Hong Kong? - AT&T, Rogers, Bell, Telus Samsung Galaxy S III

I have a US sgs3: SGH-I747 that was bought/used on AT&T.
I want to be able to drop in a new SIM when I go to china and Hong Kong, and use the Voice/Data Networks over there. Is there a way to do this? Must I root the device?

this is the i9300 forum

Ronin1337 said:
I have a US sgs3: SGH-I747 that was bought/used on AT&T.
I want to be able to drop in a new SIM when I go to china and Hong Kong, and use the Voice/Data Networks over there. Is there a way to do this? Must I root the device?
Click to expand...
Click to collapse
#1. Wrong forum. You're looking for the AT&T Galaxy S III SGH-I747 forum.
#2. No. Your phone has a receiver/antenna which can only send.receive AT&T signals. Sorry, man.
Edit: Reported it to a mod, she/he will move it shortly.

familyguy59 said:
Your phone has a receiver/antenna which can only send.receive AT&T signals.
Click to expand...
Click to collapse
Lol there's no such thing as "ATT signals", there's just certain frequencies. And as long as your phone support the frequencies that the Hong-Kong carrier uses, it'll work. check the specifications

Moved to the correct device forum
Thank you,
Kind regards
Lady Android
Forum Moderator

Glebun said:
Lol there's no such thing as "ATT signals", there's just certain frequencies. And as long as your phone support the frequencies that the Hong-Kong carrier uses, it'll work. check the specifications
Click to expand...
Click to collapse
Lol. Sorry for writing it n00b friendly.
I have a compete datasheet for it.
But AT&T has specific signal strengths and lengths that are specific to that carrier. And that is because they don't want 'their' phones to be used on other networks. It's the same with Verizon and Sprint...
CyanogenModded Very China-like, from my Samsung Galaxy S III
LG Familyguy59/Beatsleigher

Related

Flashing Galaxy Nexus to Sprint?

So, now that Sprint has announced that it's bringing the galaxy to its network, would it be possible to buy a Verizon branded one now and once the sprint version is released, flash it to a sprint PRL and activate it on their network? Or is the hardware different?
Sent from my PG86100 using xda premium
ShotSkydiver said:
So, now that Sprint has announced that it's bringing the galaxy to its network, would it be possible to buy a Verizon branded one now and once the sprint version is released, flash it to a sprint PRL and activate it on their network? Or is the hardware different?
Sent from my PG86100 using xda premium
Click to expand...
Click to collapse
No.
Verizon LTE: 700mhz.
Sprint LTE: 1900mhz.
So... Both are carrier phones.
If you want freedom, don't buy a carrier-phone. You'd think that'd be obvious by now.
Please show us that option in the states unless we want to import.
No?
K.
Don't assume all users here are outside of the United States. It was a legit question.
I don't think sprint will activate non branded phones anymore.
Not to say its impossible, its not. It would work with 3g only though and the steps to get it on the network would likely be illegal (ESN cloning a current sprint device for starters) in addition to changing all of the APN settings etc.
Not going to happen, especially with sprint releasing the same device soonish, unless you do it yourself.
adrynalyne said:
Please show us that option in the states unless we want to import.
No?
K.
Don't assume all users here are outside of the United States. It was a legit question.
Click to expand...
Click to collapse
Huh? he clearly wasn't assuming the OP was outside of the United States, considering he was responding to a question about VERIZON and SPRINT. Yes the only way to go "carrier-less" is an import. Everyone has the option to import and run in AT&T, T-Mo, Simple, or other GSM regionals if they want. The argument shouldn't be "carrier phone" vs. "not carrier phone", but rather CDMA vs GSM, considering most ppl on XDA, even if they buy a "carrier phone", wouldn't mind unlocking it and moving it around. That's possible on GSM, not so much on CDMA (except certain cases like Sprint MVNO's).
Anyway... OP this was discussed in a very (VERY) lengthly thread about a month ago when the Verizon GN came out. Short answer? No, it won't work.
adrynalyne said:
Please show us that option in the states unless we want to import.
No?
K.
Don't assume all users here are outside of the United States. It was a legit question.
Click to expand...
Click to collapse
How is importing it any different then running to the store and picking one up? Same phone, same warranty, same price. Yeah if something happens I have to send it to Clove, Handtec, Negri back to the UK...big deal.
But he's obviously a Sprint customer, and wasn't interested in importing a GSM version anyway.
I was under the impression that most users here were from the USA, judging by the mass influx since Verizon release. GSM seems to be the minority.
What I said stands. Unless you want to import, you cannot have a carrier free device.
The person I responded to said get a carrier-free device. The poster was talking Verizon vs. Sprint, which means LTE.
Its not possible to do. That was my point all along.
adrynalyne said:
No.
Verizon LTE: 700mhz.
Sprint LTE: 1900mhz.
Click to expand...
Click to collapse
We don't know what LTE band its radio chip supports (other than the Verizon band), yet. But don't buy a Verizon Nexus just hoping that you can use it on Sprint in the future. Sprint LTE network won't launch until later this year, and by then you will have many more choices of ICS phones, and/or the price of Nexus may have lowered considerably.
AdamHart612 said:
How is importing it any different then running to the store and picking one up? Same phone, same warranty, same price. Yeah if something happens I have to send it to Clove, Handtec, Negri back to the UK...big deal.
But he's obviously a Sprint customer, and wasn't interested in importing a GSM version anyway.
I was under the impression that most users here were from the USA, judging by the mass influx since Verizon release. GSM seems to be the minority.
Click to expand...
Click to collapse
GSM is the minority?
GSM DEV:
Threads: 80
Posts: 15,564
CDMA DEV:
Threads: 44
Posts: 7,734
Not surprising given the GSM version's international availability. Maybe the Verizon users are simply more vocal...All I meant was that in the couple weeks since the Verizon version dropped the general section in particular has exploded, where it was far more quiet before. GalNex is available around the world on many carriers, yet every other thread mentions CDMA/LTE (exclusive to Verizon). Very out of proportion. Just an observation.
Wait a minute, is the imported version capable of CDMA/LTE? Someone mentioned if you want a carrier free one then get an imported one. I was looking on eBay and in one I noticed it said it will work for AT&T/TMO 3/4G and LTE where available. I don't think this is the case but if it is someone fill me in.
GrandMstrBud said:
Wait a minute, is the imported version capable of CDMA/LTE? Someone mentioned if you want a carrier free one then get an imported one. I was looking on eBay and in one I noticed it said it will work for AT&T/TMO 3/4G and LTE where available. I don't think this is the case but if it is someone fill me in.
Click to expand...
Click to collapse
LTE where available meaning in an LTE area they will sell you an LTE device. The UK version does NOT have LTE.
Also to the OP, no it won't work.
joshnichols189 said:
LTE where available meaning in an LTE area they will sell you an LTE device. The UK version does NOT have LTE.
Also to the OP, no it won't work.
Click to expand...
Click to collapse
Thanks, I guess the eBay listing is miss leading then. I know if I bought it and found out later that wasn't the case I'd be returning it.
Hey, this is an old thread but I just found this through Googling.
http://phandroid.com/2011/12/20/sprint-galaxy-nexus-a-reality-device-given-the-green-light-for-activation-rumor/
Is this really possible?

[Q] Sprint Galaxy S3 on AT&T possible?

I am planning to buy an used Sprint Galaxy S3, but I am using Straightalk (which is using AT&T network).
Is there any way I can use this phone with AT&T? I am searching this forum for more than week now and could not find a definetive answer, so I thought it's time to post. I am novice on android but technical person, so would be able to grasp (or google) technical details.
Looking forward to quick response on this query.
The Sprint version is CDMA. The AT&T network is GSM. They are not compatible.
raone26 said:
I am planning to buy an used Sprint Galaxy S3, but I am using Straightalk (which is using AT&T network).
Is there any way I can use this phone with AT&T? I am searching this forum for more than week now and could not find a definetive answer, so I thought it's time to post. I am novice on android but technical person, so would be able to grasp (or google) technical details.
Looking forward to quick response on this query.
Click to expand...
Click to collapse
How would you expect to stick a Straighttalk sim in a CDMA device? CDMA and GSM are completely different. They are not compatible.
Sent from my Nexus 4 using xda premium
LuigiBull23 said:
How would you expect to stick a Straighttalk sim in a CDMA device? CDMA and GSM are completely different. They are not compatible.
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
I thought S3 is world phone, it supports GSM and CDMA both but carrier do disable either based on what they are not intended to use.
Here is other useful information about how to do it.
http://forum.xda-developers.com/showthread.php?t=1809314
raone26 said:
I thought S3 is world phone, it supports GSM and CDMA both but carrier do disable either based on what they are not intended to use.
Here is other useful information about how to do it.
http://forum.xda-developers.com/showthread.php?t=1809314
Click to expand...
Click to collapse
That is the Verizon S3 (I535). Also different than the Sprint S3 (L710). The Sprint S3 is most definitely CDMA only.
m20120 said:
That is the Verizon S3 (I535). Also different than the Sprint S3 (L710). The Sprint S3 is most definitely CDMA only.
Click to expand...
Click to collapse
This will surely help! "Thanks" clicked :laugh:
Why not just buy an AT&T version? Did I miss something?
metalfan78 said:
Why not just buy an AT&T version? Did I miss something?
Click to expand...
Click to collapse
Well, first I am a prepaid user, and in area where I leave there are mostly US Cellular or Sprint S3s available on craigslist! Hope this helps
unlocking sprint verizon cdma for csm carriers
m20120 said:
That is the Verizon S3 (I535). Also different than the Sprint S3 (L710). The Sprint S3 is most definitely CDMA only.
Click to expand...
Click to collapse
I keep seeing over and over members telling people that sprint and verizon phones cant work on gsm carriers because its cdma phone. That is wrong it can be done it does have the bands aometimes you have to flash gsm radio on sprint and verizon phones. It can be done. Members if you dont know what ypu are talking about please dont tell people things that arent true. Im tired of seeing false info on such a reputable site. Id u dont know. Dony say you do.
Check amazon for an ATT S3 phone. The one I got was classified as good, and it looks brand new, no marks nothing. I may have gotten lucky. I bought it from Amazon warehouse, not one of the other sellers. The price was a bit higher but it appears worth it. But with amazon if it doesn't meet your standards you can return it.
<<<Need to check post dates, this post was dug up from years ago by the previous poster>>>
I didn't think to check

[Q] Buying SGS II from USA - question

I'm going to order manufacturer refurbished Samsung Galaxy S II from USA, but I'm not sure will it work on European (Croatia) network?
If it is unlocked is there any other obstacles?
And if it is not unlocked, is it a problem to unlock it to work on European network?
Thanks in advance for reply, and sorry if it is OT.
What kind of USA's S2 ?
Keep in mind that americans don't market I9100.
Check out the model in order to move this thread to the right forum.
Sent from the little guy
gastonw said:
What kind of USA's S2 ?
Keep in mind that americans don't market I9100.
Click to expand...
Click to collapse
It is SGH-T989ZKBTMB
Found it here: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=111079333173
maxbluz said:
It is SGH-T989ZKBTMB
Found it here: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=111079333173
Click to expand...
Click to collapse
It will work outside the u.s. but overseas frequencies are different so you probably will not get 4g capabilities 3g at best.

Verizon Phone

Hello,
I couldnt find anything on this thread before posting. I am a Verizon user and just upgraded to Galaxy s4, i have a friend thats on AT&T network. Can I switch this verizon phone to AT&T, if so please refer me to correct section to do so
lazersate said:
Hello,
I couldnt find anything on this thread before posting. I am a Verizon user and just upgraded to Galaxy s4, i have a friend thats on AT&T network. Can I switch this verizon phone to AT&T, if so please refer me to correct section to do so
Click to expand...
Click to collapse
Let's see. You are on Verizon. With a S4. This is the AT&T S3 forum. Yep, I would say wrong area.
Try asking in this forum. http://forum.xda-developers.com/forumdisplay.php?f=2258
But general guess would be no.
No i'm giving him my old Verizon Galaxy S3 to be used on AT&T
lazersate said:
Hello,
I couldnt find anything on this thread before posting. I am a Verizon user and just upgraded to Galaxy s4, i have a friend thats on AT&T network. Can I switch this verizon phone to AT&T, if so please refer me to correct section to do so
Click to expand...
Click to collapse
Your Verizon or Sprint S3 can be unlocked and flashed to work with another CDMA carrier such as Cricket/boost/Metro etc.
AT&T and T-mobile use sim cards and can be unlocked to switch between GSM carriers. So unless I am mistaken, it is not possible to use a Verizon s3 on AT&T.
you have CDMA version; friend is GSM. will not work on this device. Most of the world is GSM; i travel a lot so i always use GSM carrier in USA. There are no CDMA carriers in France, Greece, Italy, (im Greek and have friends/family/work in Southern Europe) UK (i think Ireland proper has CDMA carrier) and only one in Belarus, one in Ukraine and two in Russia (GF is from that area) so we stick with GSM from carriers in USA now (used to buy intl models when WinMo5/6 was popular).
BYOBret said:
Your Verizon or Sprint S3 can be unlocked and flashed to work with another CDMA carrier such as Cricket/boost/Metro etc.
AT&T and T-mobile use sim cards and can be unlocked to switch between GSM carriers. So unless I am mistaken, it is not possible to use a Verizon s3 on AT&T.
Click to expand...
Click to collapse
technically, i believe the verizon s3 takes a sim card for LTE....... but even with that said, a verizon s3 isn't going to work on ATT because of it having a cdma radio instead of a gsm.
Please read forum rules before posting
Questions and help issues go in Q&A and Help sections
Thread moved
Thank you for your cooperation
Friendly Neighborhood Moderator
Thank you for replies. And mod sorry for posting incorrectly
Sent from my SCH-I545 using xda premium

Sim Unlocked TMO S4 - Frequencies Question

I have a T-Mo Galaxy S4 that was SIM unlocked through unlockerDotnet.
I've heard that the T-Mo S4 is better than AT&T for a variety of reasons, but more importantly that it picks up all of T-Mobiles HSPA+ along with AT&T's network. So in theory, having it sim unlocked, I could fully utilize t-mobile's service and at&t's service to their full potential. Can anyone confirm this?
Reason I ask was I was speaking with a TMO rep once and he said the international unlocked version wouldn't pick up on the full spectrum of TMO frequencies, but it should be fine with AT&T. Ideally I want to get into a situation where I have the option to jump between the two through their full spectrum, or any mvno's that use their towers as well.
Thanks for the clarification! :laugh:
Details and specifics appreciated!
You can enable tmo AWS bands on AT&T S4. 2 phones are the same, basically the tmo version has the extra bands enable out of the box.
tengtengvn said:
You can enable tmo AWS bands on AT&T S4. 2 phones are the same, basically the tmo version has the extra bands enable out of the box.
Click to expand...
Click to collapse
Thanks for the heads up :good:
So there wouldn't be any disadvantage to running the sim unlocked TMO S4 on ATT? I'd still pick up on all their 3g/4g/lte frequencies?
Much appreciated my friend
It will work its full potential on AT&T network if that what you want it to do.
tengtengvn said:
It will work its full potential on AT&T network if that what you want it to do.
Click to expand...
Click to collapse
Wait a minute... The ATT version has the tmobile bands too? I thought it was missing two of them.
Sent from my HTC One using xda app-developers app
http://galaxys4root.com/galaxy-s4-t...aws-bands-on-att-galaxy-s4-sgh-i337sgh-i337m/
tengtengvn said:
http://galaxys4root.com/galaxy-s4-t...aws-bands-on-att-galaxy-s4-sgh-i337sgh-i337m/
Click to expand...
Click to collapse
I got another reply on a different forum that said
"T-Mobile's phone will work on both AT&T and T-Mobile however im not sure if the 4g LTE will work on AT&T's Network but either way you will only be able to use one or the other at any one time."
So, just to clarify, or rephrase rather, will 4G LTE work on ATT's network with the sim-unlocked TMO S4, or would it be beneficial to go with the ATT S4 and open up the TMO bands?
Sorry to beat the dead horse, just want to try and verify HSPA+ and both Tmo LTE and Att LTE will work with my setup, or if I should switch to ATT or International Unlocked version.
Again, many thanks for clearing this up!
Please read forum rules before posting
Questions and help issues go in Q&A and Help sections
Thread moved
Thank you for your cooperation
Friendly Neighborhood Moderator
kennyglass123 said:
Please read forum rules before posting
Questions and help issues go in Q&A and Help sections
Thread moved
Thank you for your cooperation
Friendly Neighborhood Moderator
Click to expand...
Click to collapse
K. Can anyone help me out with that last question that knows LTE tech fairly well? I read a bit about frequencies here and from what I can tell it seems like the LTE frequencies are 1.4MHz, 3MHz, 5MHz, 10MHz, 15MHz, and 20MHz pending which geographic market you are in, but I'm not sure if there's anything else hidden in regards to carriers have specific LTE frequencies, and if so if any that a TMO sim unlocked S4 doesn't have.
In the end, i'm 90% going to be on TMO or a MVNO, but on the slight chance (or if i'm working around the country in a very rural area) I may want to switch to ATT and possibly their new prepaid service they're going to announce. Anyways, thanks again
My unlocked TMO S4 works perfectly on ATT LTE, doing it right now and have been for the last few weeks. That's why I bought it also was to hop between carriers.
While you can get the ATT S4 to work with TMO it's more difficult and not ready to go out of the box. I tried that and ended up just returning the ATT one.
Sent from my SGH-M919 using xda premium
aranock said:
In the end, i'm 90% going to be on TMO or a MVNO, but on the slight chance (or if i'm working around the country in a very rural area) I may want to switch to ATT and possibly their new prepaid service they're going to announce. Anyways, thanks again
Click to expand...
Click to collapse
T-mobile just dropped the price of their S4. There's no reason to get the ATT one but in case you get one and want an easy way to unlock the extra bands, follow this thread: http://forum.xda-developers.com/showthread.php?t=2324667
kevroc said:
My unlocked TMO S4 works perfectly on ATT LTE, doing it right now and have been for the last few weeks. That's why I bought it also was to hop between carriers.
While you can get the ATT S4 to work with TMO it's more difficult and not ready to go out of the box. I tried that and ended up just returning the ATT one.
Sent from my SGH-M919 using xda premium
Click to expand...
Click to collapse
I have a T-Mobile variant s4 unlocked using it on AT&T network and just did my first speed test and......was very disappointed!
Sent from my SGH-M919 using xda premium

Categories

Resources