Will development for the international version be portable to the US variants? Obviously it will take some work but how hard will it be?
EDIT: What about the Epic 4G Touch specifically?
you can use any of the international version on the us variants except for tmobile as the frequenncy band is different.
Any use the same bands are compatible.
What about the sprint version as it is cdma?
You can not use international version or port the files as cdma file structure is total differemt then gsm version.
As cdma versions are not unlockable in sense you cam switch roms to suit your preferences.
Sent from my GT-I9100 using XDA App
Sorry could you explain? How different are they? I just don't understand. I am not familiar with gsm as I only us a samsung moment.
gsm once unlocked can be used with any provider who uses a sim card around the world as long as you pay their fees and the phones frequencies are supported on their network. You only to insert an activated sim card no sprcial permission or codes needed.
cdma phones can not be unlocked and is limited to a few providers who support cdma.
Cdma providers general do not allow phones from other providers to be used on their networks as you need to have them register the phone on their networks with special codes.
Beastley, forget about what cosmic blue is saying. He thinks you are asking if you can use the international sgs2 on a US network.
The US phone variants have yet to be released, so there is no way to know if roms will be cross compatible with the US variant SGS2's.
Sent from my GT-I9100M
ok maybe i am wrong.. but it wont be that easy to port as the US version dont have a home button key they have those 4 touch ones.. so obviously the rom/kernel would have some diffrent codes to support them.plus one version has the notification light..
mm it would be intresting to see what comes out of the port
Electroz
Unless the us varients are either cdma or have the 1700 band, there is no diffrence betweem the roms except for the modem amd possible the csc.
Basic kernal structure will not vary
Sent from my GT-I9100 using XDA App
Cosmic Blue said:
Electroz
Unless the us varients are either cdma or have the 1700 band, there is no diffrence betweem the roms except for the modem amd possible the csc.
Basic kernal structure will not vary
Sent from my GT-I9100 using XDA App
Click to expand...
Click to collapse
That's not at all how it was with the SGS1, so I would like to see a source for your information.
Every variation of the original SGS phones have and still require separate kernels to run the roms. The reason people can run I9000 roms on the captivate or vibrant is because people created custom kernels for the captivate/vibrant that would support I9000 roms.
The main reason you are wrong is that the button types/layouts are different which is a kernel feature. A second reason, is that they will have different hardware as well.
So, as I said, please provide proof as to why the SGS2 and it's variants are are all going to have the same kernel....
Electroz said:
That's not at all how it was with the SGS1, so I would like to see a source for your information.
Every variation of the original SGS phones have and still require separate kernels to run the roms. The reason people can run I9000 roms on the captivate or vibrant is because people created custom kernels for the captivate/vibrant that would support I9000 roms.
The main reason you are wrong is that the button types/layouts are different which is a kernel feature. A second reason, is that they will have different hardware as well.
So, as I said, please provide proof as to why the SGS2 and it's variants are are all going to have the same kernel....
Click to expand...
Click to collapse
Electroz
You maybe right.
Have we not seen enough varients from other countries to prove that my point is valid like :
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[SHW-M250*] Korean Galaxy SII M250S / M250K / M250L
or
[SC-02C] Japan NTT DoCoMo Galaxy S II Users
or
Bell Canada varient.
It is a matter of opinion. We will have to wait and see what happens.
Related
I am planning to buy an unlocked Xperia Neo. But there are two version MT15a and MT15i, for US version and International version, respectively. I wanna know what are the difference between these two versions. And I live in USA(my phone service is T-mobile) , can i still use MT15i? Are the chargers for both same?
Thank you so much!
Neo112011 said:
I am planning to buy an unlocked Xperia Neo. But there are two version MT15a and MT15i, for US version and International version, respectively. I wanna know what are the difference between these two versions. And I live in USA(my phone service is T-mobile) , can i still use MT15i? Are the chargers for both same?
Thank you so much!
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It's on page 6 of this document:
http://dl-www.sonyericsson.com/cws/download/1/922/664/1315210962/neo_WP_6.pdf
If the chargers are the same depends on where you buy it. It will be sold with a British charger if you buy it in the UK, but the MT15a will likely have an American charger.
I is for europe.
Might not work in usa, difrent network signal.
Sent from my LT15i using XDA Premium
Thanks for all responses!
I have an unlocked MT15a because i live in Latin america, and those are the bands that works over here, however, i'm going to spain for three months, and i was wondering if i could change the 3g bands on my device to work with the european bands. or in other words, turn my MT15a device to an MA15i.
My previous device was a Motorola Milestone, and this was possible via openrecovery.
I think my #2 post is also relevant for you, search if they use the one of the supported frequencies by MT15a in Spain
redondogabriel said:
I have an unlocked MT15a because i live in Latin america, and those are the bands that works over here, however, i'm going to spain for three months, and i was wondering if i could change the 3g bands on my device to work with the european bands. or in other words, turn my MT15a device to an MA15i.
My previous device was a Motorola Milestone, and this was possible via openrecovery.
Click to expand...
Click to collapse
I think it will work. In Spain we use the 900/1800 band
From Wiki:
"Africa, Europe, Middle East and Asia
In Africa, Europe, Middle East and Asia, most of the providers use 900 MHz and 1800 MHz bands. GSM-900 is most widely used. Fewer operators use DCS-1800 and GSM-1800. A dual-band 900/1800 phone is required to be compatible with almost all operators. At least the GSM-900 band must be supported in order to be compatible with many operators."
I need some technical help; I want to purchase a SONY xperia SX or praying a 850/1900 shows up soon as I doubt the nexus variant will be this small (if it even will come).
However the spec sheet shows that:
LTE 2100 (Band I)
HSPA+ 800 (Band VI), 800 (Band XIX), 2100 (Band I) GSM 850/900/1800/1900
I want to use the phone on AT&T HSPA which is Band II (1900) and Band V (850) <-this one
This WONT work right even though Band VI and XIX are narrower in TX/RX than Band V? I don't want to spend $900 and be stuck using this phone on 2G/EDGE only. Stupid bands.
please forgive me as I posted in the arc s q&a but I never got a reply. i figure there are enough technical minded folk here that can answer my question.
T-Mobile USA
Similar question as OP, except for bands on T-Mobile (1700MHz & 2100MHz needed for 4G). I use an SE Xperia Ray (ST18a) on T-Mobile US, but only get 2G. It is adequate for now. Was wondering if I would be losing ALL data functionality or might gain some with the Sony Xperia SX SO-05D.
Thanks!
I have one!
I live in Japan and have just purchased an SX.
If there is anything I can do with the handset to answer your questions let me know how.
I am experienced in the fact i can follow forum instructions quite well (have rooted/Jailbroken/flashed custom firmware etc on mine and my friends' phones) but a newbie in the fact I have never coded, made my own ROMs etc.
As this is a Japan exclusive phone I really want to know if I am going to be able to flash custom ROMs etc? It seems there is already a "one-click root" on the Japanese forums but CWM isn't fully working yet and i don't know if they will develop ROMs or port CyanogenMod to it.
Seeing as SE are really unreliable with updates I would like to have a failsafe in case they dont release any. How would I go about porting CM10 for example myself? Is it something only an experienced coder can do?
Many thanks in advance.
As I previously wrote: http://forum.xda-developers.com/showthread.php?p=39144776#post39144776
I have been using an SX on AT&T in the USA for a couple months. LTE does not work but HSPA seems OK. Using speedtest.net, I have seen over 4 Mbps but usually it is much closer to 1 Mbps in practical use. That's a far cry from the theoretical maximum for HSPA, but it's pretty fast.
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Guys,
Just an FYI, I am getting very slow LTE speeds on my SM-G925F Vs. SM-G925A, in fact I am not convinced I am getting LTE at all, as LTE discovery doesn't work properly on the International version, but does work on the AT&T version. I am getting LTE N/A on the 925F and on the 925A it shows Band 17 for LTE. I have the 4G indicator on the International version, and 4G LTE on the AT&T version. Any idea why LTE DIscovery doesn't work on the 925F? I was under the impression the 925F had all the bands the AT&T version does and just added extra.
Just saw this post. Can you try calling AT&T and see if your IMEI is part of the AT&T network.. according to this post its what they did and got it to work.. same situation initially.. slow speeds at first.
s-one said:
Just saw this post. Can you try calling AT&T and see if your IMEI is part of the AT&T network.. according to this post its what they did and got it to work.. same situation initially.. slow speeds at first.
Click to expand...
Click to collapse
I have an AT&T Galaxy S6 Edge provisioned on the line I am testing the 925F on, so that isn't the problem. It is something to do with the radio firmware on the 925F, even if someone thinks they are getting LTE, they probably are only partially getting it. I can post some LTE discovery and cell signal screenshots in the morning to illustrate the differences as I have the 2 phone sitting side by side. See this post for more info in the mean time.
http://forum.xda-developers.com/showpost.php?p=60207909&postcount=8
OK thanks for sharing the info with us.
s-one said:
OK thanks for sharing the info with us.
Click to expand...
Click to collapse
I update the other post with screen shots. I will post them here as well.
Here are the screen shots, the 925F seems to be picking up LTE this morning down on my first floor where my PC is. There is definitely something screwy with the radio though on it. See below.
SM-G925F
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SM-G925A
y2jdmbfan said:
Guys,
Just an FYI, I am getting very slow LTE speeds on my SM-G925F Vs. SM-G925A, in fact I am not convinced I am getting LTE at all, as LTE discovery doesn't work properly on the International version, but does work on the AT&T version. I am getting LTE N/A on the 925F and on the 925A it shows Band 17 for LTE. I have the 4G indicator on the International version, and 4G LTE on the AT&T version. Any idea why LTE DIscovery doesn't work on the 925F? I was under the impression the 925F had all the bands the AT&T version does and just added extra.
Click to expand...
Click to collapse
I was going to buy an emerald green one from one of the retailers in Germany or the UK but now that I see there are issues I will just wait.
atuarre said:
I was going to buy an emerald green one from one of the retailers in Germany or the UK but now that I see there are issues I will just wait.
Click to expand...
Click to collapse
A couple of thoughts...
1. The International version doesn't do Carrier aggregation, which AT&T is using now, you can see that in the pictures above.
2. The radio on the 925F is not tuned to US frequency networks very well.
3. You lose HD Voice and VoLTE on the International version.
Now I was content to lose #3, not a real big deal on either of those from me, but 1 and 2 kind of make it a deal breaker for me and I don't want to wait and HOPE Samsung fixes it in a software update.
were you able to fix this issue? Same here with 925F on t-Mobile
anyone resolved this? I'm on cricket and im always on H+ and rarely ever see the 4G symbol come on. however, the internet isn't slow either, about 6-8Mbps down.
I had a G925I and had all these issues. Switched to SM-G9250 which is the Chinese/Hong Kong variant and I use it on at&t. There's no LTE or speed issues. I did head to head testing with iphone 6 on at&t and my 9250 pulls faster speeds. Worth noting that 9250 has the most comprehensive network bands support of all S6 and S6 edge variants.
I also put this in another thread, but I have similar issues with my 925F on T-Mobile. Anyone know if I would bork the device trying to flash the T-Mobile modem on a 925F? Up for giving it a shot if I can be reasonably sure that I will not destroy my new phone. I installed the latest baseband and modem for the 925F from here:
http://forum.xda-developers.com/showpost.php?p=60112855
I could try the files for the 925T from that same thread and see what happens....
It's supposed to support Band 4 LTE and H+ with a change in APN settings. Therefore it should work on T-Mobile USA. Can anyone please confirm? A few guys here on Band 4 in Argentina say it works.
Would like to know as well, bump.
It does work. I have straighttalk with the att lte sim card and i was getting LTE speeds on the vendor rom that came with the note 3 pro but then i upgraded to the official global (was afraid vendor rom was infected with malware) and since im using the official global rom all i get is HSPA+. Cant seem to figure out what changed from roms that i cant get lte back. But to confirm yes it does get lte and hspa+
Sent from my Redmi Note 3 using XDA-Developers mobile app
kobe4rings said:
It does work. I have straighttalk with the att lte sim card and i was getting LTE speeds on the vendor rom that came with the note 3 pro but then i upgraded to the official global (was afraid vendor rom was infected with malware) and since im using the official global rom all i get is HSPA+. Cant seem to figure out what changed from roms that i cant get lte back. But to confirm yes it does get lte and hspa+
Sent from my Redmi Note 3 using XDA-Developers mobile app
Click to expand...
Click to collapse
That's great news. May I ask which vendor you bought it from. There are three versions apparently China, Global and India. Global definitely works but some China versions don't. Don't know about India. I bought mine from Gearbest with the Focal Tech vendor rom that I haven't changed but I have no way confirming which version it is though I suspect it's one of the China versions. Is there any way to find out? T-Mobile H+ is plenty fast but it would be nice to have LTE.
Twotems said:
That's great news. May I ask which vendor you bought it from. There are three versions apparently China, Global and India. Global definitely works but some China versions don't. Don't know about India. I bought mine from Gearbest with the Focal Tech vendor rom that I haven't changed but I have no way confirming which version it is though I suspect it's one of the China versions. Is there any way to find out? T-Mobile H+ is plenty fast but it would be nice to have LTE.
Click to expand...
Click to collapse
I bought it from banggood.com, it was i think 25 dollars cheaper than gearbest at the time (3gb ram, 32gb model). I was getting LTE and over 25mbps always but once i flashed the official global rom all i can get is a little over 8mbps. This seems to be a common issue as ive seen it posted various times. (screenshot for speed reference. had more lte speed comparisons but i deleted the app once so i only have the only in the screenshot)
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Sent from my Redmi Note 3 using XDA-Developers mobile app
If it has CDMA bands and it's rootable, why hasn't a method for enabling the CDMA bands been found yet?
"I will also add that in the past the dual-sourcing made sense due to technical limitations. CDMA compatibility for Verizon and Sprint in the US and China Telecom in China made for compelling arguments for using Snapdragon variants in those markets. However since then Samsung has introduced discrete modems and Exynos SoCs with CDMA compatibility. Indeed the Exynos 9810’s new modem supports CDMA. Samsung’s licensing dispute with Qualcomm and their recent reconciliation points out to issues beyond “simple” technical matters. The fact that the Snapdragon 845 is produced by Samsung is also a factor at play. The foundry business used to be under the same corporate roof as the SoC business making Exynos chips, however last summer Samsung has spun off the manufacturing part into a separate business unit. What this means for the future of dual-sourcing Snapdragon and Exynos SoCs remains uncertain, but for now the Galaxy S9 still continues the tradition, for better or worse."
Source: https://www.anandtech.com/show/12460/samsung-announces-the-galaxy-s9
Sure you're not confusing CDMA with WCDMA? They aren't the same thing, and the Exynos variants don't have a CDMA radio (hence why the Snapdragon version is the one sold in the US for Sprint & Verizon).
Devhux said:
Sure you're not confusing CDMA with WCDMA? They aren't the same thing, and the Exynos variants don't have a CDMA radio (hence why the Snapdragon version is the one sold in the US for Sprint & Verizon).
Click to expand...
Click to collapse
"I will also add that in the past the dual-sourcing made sense due to technical limitations. CDMA compatibility for Verizon and Sprint in the US and China Telecom in China made for compelling arguments for using Snapdragon variants in those markets. However since then Samsung has introduced discrete modems and Exynos SoCs with CDMA compatibility. Indeed the Exynos 9810’s new modem supports CDMA. Samsung’s licensing dispute with Qualcomm and their recent reconciliation points out to issues beyond “simple” technical matters. The fact that the Snapdragon 845 is produced by Samsung is also a factor at play. The foundry business used to be under the same corporate roof as the SoC business making Exynos chips, however last summer Samsung has spun off the manufacturing part into a separate business unit. What this means for the future of dual-sourcing Snapdragon and Exynos SoCs remains uncertain, but for now the Galaxy S9 still continues the tradition, for better or worse."
Source: https://www.anandtech.com/show/12460/samsung-announces-the-galaxy-s9
Interesting..... Now of course there's the secondary issue in the US at least, in that Sprint nor Verizon would still have to activate the device on their network; something they tend not to do for most devices they don't sell. I also don't believe CDMA devices use a SIM card nor the IMEI number, so you'd have to generate an ESN or MEID number manually (something that could probably be considered as illegal as changing the IMEI in many areas).
Bottom line, there's more to CDMA than just activating the radio or ensuring the proper bands are supported - at least from my understanding of the technology. Of course, I may be mistaken here just like I was about the Exynos 9810 theoretically supporting CDMA, but I still stand by my belief that it's more complicated than how we could enable Band 4 LTE on the Nexus 4 back in the day.
Verizon wireless has BYOD, so I think that rectifies one issue. Well, it's a bummer I can't connect to VZW on an exynos S9. How do I go about making it work?
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On my unrooted S9+ UAE Exynos, I got into the Mobile Network Settings. It's axiomatic that there's an option for LTE/CDMA; however, I cannot make it stick. It may be a futile option, but I don't know . Can someone test this?