[Q] GT-I9100 /w AWS UTMS band? - Galaxy S II Q&A, Help & Troubleshooting

I've read that the AT&T version of the SGSII (Skyrocket) and Galaxy Note can be flashed with the Tmo SGSII modem and work. Does anyone know if this can be done on the international SGSII (GT-I9100)?
I have this, and was on AT&T, but now on T-Mobile. I still love this phone and want to use it on Tmo on their HSPA+ network.
I've searched, and nothing has come up. I wonder how much hardware parts these variants share with the "original".
Probably a Qualcomm Snapdragon S3 vs Exynos thing....

naddie said:
I've read that the AT&T version of the SGSII (Skyrocket) and Galaxy Note can be flashed with the Tmo SGSII modem and work. Does anyone know if this can be done on the international SGSII (GT-I9100)?
I have this, and was on AT&T, but now on T-Mobile. I still love this phone and want to use it on Tmo on their HSPA+ network.
I've searched, and nothing has come up. I wonder how much hardware parts these variants share with the "original".
Probably a Qualcomm Snapdragon S3 vs Exynos thing....
Click to expand...
Click to collapse
No. The GT-I9100 physically lacks the capability to receive one of the two necessary bands for AWS to receive high speed data on T-mobile USA's network.
The reason it works with the Skyrocket and the Note is because those two phones DO have the capability to receive both bands for AWS. (1700 and 2100 mhz UMTS)

Related

Unlocked AT&T Samsung Galaxy S II for T-mobile

I wonder if the 4G network of T-mobile work on the AT&T version of the Samsung Galaxy S II.
Thank You
pagereborn said:
I wonder if the 4G network of T-mobile work on the AT&T version of the Samsung Galaxy S II.
Thank You
Click to expand...
Click to collapse
my guess is that its just like the captivate (and every other AT&T specific phone).....no
pagereborn said:
I wonder if the 4G network of T-mobile work on the AT&T version of the Samsung Galaxy S II.
Thank You
Click to expand...
Click to collapse
Look at the bands in the specs - if you don't see UMTS1700, it won't work.
And I have NEVER seen that in the specs for ANY AT&T phone, EVER.
In rare situations, T-Mobile phones supported one (but not both) AT&T bands, but I've never seen any AT&T phone support T-Mo bands.
Entropy512 said:
Look at the bands in the specs - if you don't see UMTS1700, it won't work.
And I have NEVER seen that in the specs for ANY AT&T phone, EVER.
In rare situations, T-Mobile phones supported one (but not both) AT&T bands, but I've never seen any AT&T phone support T-Mo bands.
Click to expand...
Click to collapse
+1u vibrant worked on att 3g but that was rare most carriers try to avoid that
Sent from AT&T Galaxy S2
pagereborn said:
I wonder if the 4G network of T-mobile work on the AT&T version of the Samsung Galaxy S II.
Thank You
Click to expand...
Click to collapse
T-Mobile's AWS bands aren't typically supported. AWS isn't even used in Asia or Europe. T-Mobile's SGS2 does have AT&T's bands but not vice versa. But it's a stretch even calling T-Mobile's version an SGS2.
How about 3G? Does Tmobile support 3G on AT&T phone, since i read both phone have 2100 UMTS.
Thanks
joshyy_rey said:
+1u vibrant worked on att 3g but that was rare most carriers try to avoid that
Sent from AT&T Galaxy S2
Click to expand...
Click to collapse
Vibrant only supported one of the bands (1900), so it only worked on att 3G in some markets, not everywhere. Some markets only use 850.
Sent from my SGS II
Greenturtle23 said:
How about 3G? Does Tmobile support 3G on AT&T phone, since i read both phone have 2100 UMTS.
Thanks
Click to expand...
Click to collapse
No. 3G and 4G use the same bands. You MUST have 1700 AWS support in order to get T-Mo 3G or 4G. Good luck with that. Only T-mo or some Canandian phones support AWS.
Greenturtle23 said:
How about 3G? Does Tmobile support 3G on AT&T phone, since i read both phone have 2100 UMTS.
Thanks
Click to expand...
Click to collapse
You'll get EDGE/GPRS speeds. Typically between 256 and 512K. To get anything higher you'll need a phone that supports 1700/2100 of which there aren't many other than the one's offered by T-Mobile itself.
Simple answer: No.
You will only get EDGE speed on any AT&T phones. There aren't many phones with 1700 band besides T-Mobile phones.
It's funny how T-Mobile's "SGS2" supports AT&T's bands, but not the other way around. But then again their "SGS2" seems more like an Amaze IMO since it's using the darn S3 & not Exynos >:l (points at tmobile). I really wished Sammy could fix the Exynos, so it could support Tmo, because it feels wrong when Sammy teams up with Qualcomm....End of rant.
The only reason T-mo version uses Qualcomm chip is because it needs the 42mbps HSPA+ radio from Qualcomm. The upcoming LTE version of GS2 will also use Qualcomm chip because it needs to use the Qualcomm LTE chip.
foxbat121 said:
The only reason T-mo version uses Qualcomm chip is because it needs the 42mbps HSPA+ radio from Qualcomm. The upcoming LTE version of GS2 will also use Qualcomm chip because it needs to use the Qualcomm LTE chip.
Click to expand...
Click to collapse
The Korean Celox, on which the TSGS2 is based, is an LTE device and using a Qualcomm chip. The two recently announced Korean SGS2 models will be LTE and using a 1.5Ghz version of the Exynos chip. Samsung went with Qualcomm for the TSGS2 and Celox either to shorten time to market or the projected quantities weren't sufficient to modify Exynos. Evolutions of Exynos will continue to power Samsung's flagship phones and tablets starting with the G-Note and G-Tab 7.7.

Galaxy S III (International) On Telus

I know it's been posted a few times before regarding whether or not the international version of the Galaxy S III will be compatible on Canadian Carriers (In my case, TELUS) but I am just wondering if it can in fact work. Here's why I ask:
I live in Kelowna, British Columbia, and my current phone is a Galaxy S II from Bell Mobility. I unlocked it back in August of last year to use it on the TELUS network. It ran on the 850/900/1900/2100 MHz bands and I had no issue with using it on TELUS at HSPA+ speeds. With the Galaxy S III it runs on the same bands, so shouldn't it work? Now I've seen people saying that it still requires the 1700 MHz frequency (same idea with T-Mobile), however in my location there is no cellular tower that supports the 1700 MHz frequency (according to Canadian Cellular Towers Map). The only frequencies in Kelowna are 850 and 1900 actually.
This being said, shouldn't the Galaxy S III work in my area if I were to continue with my pre-order for the International variant?
[EDIT]
Also, just to point out, the HTC One S, which is also just released on TELUS, also opperates on the same frequencies as the Galaxy S III International.
I think you'll be fine.
And if the international version doesn't work from wherever you buy it from, I'm sure you can return it.
That's the premise I'm going on with SaskTel.
@MaesterB: Yeah I think so too. I spoke with a TELUS rep now and he claims that the 850/1900 MHz frequencies are enough to handle up to 42Mbps download speeds, and the 1700 MHz is primarily for the LTE coverage areas (Vancouver, Toronto, etc). Of course, in my area my Galaxy S II can only hit up to 6-8 Mbps anyways so I'm not overly concerned.
Exactly.
In Regina, we have "4G" but the fastest I can get is like up to 5MB anywhere in the city.
So, the International SGS3, running on 3g/4g...should be just fine.

[Q] Galaxy S III T999 and Galaxy S III I747

Do these two phones have identical hardware but different firmware, so that flashing for example the CM9 mod would make them identical, or do their hardware differs from each other, considering different band support and lack of LTE on T-Mobile?
Thank you.
For the most part hardware seems yo be same... you may have to switch the modems though. Expect a common Cm9 base and then a zip flash for each service provider.
Sent from my GT-I9300 using Tapatalk 2
Hopefully there will be some good collaboration between the ATT/Tmo (and possibly some parts from Sprint/Verizon) devs since the hardware is so similar.
It opens up the possibilities for a lot more ROMs!
Actually my question was more about the possibility to use the devices across the networks using custom mods (e.g. to use the I747 on the T-Mobile network).
Thank you.
mikhailmv said:
Actually my question was more about the possibility to use the devices across the networks using custom mods (e.g. to use the I747 on the T-Mobile network).
Thank you.
Click to expand...
Click to collapse
You can do this without mods but you won't have access to the 3g band on TMo just like TMo won't have access to the LTE 4g ATT Band...flashing a diff modem/radio won't give you the missing bands unless the hardware actually supports them and its just locked out...which currently isnt known.
djkinetic said:
You can do this without mods but you won't have access to the 3g band on TMo just like TMo won't have access to the LTE 4g ATT Band...flashing a diff modem/radio won't give you the missing bands unless the hardware actually supports them and its just locked out...which currently isnt known.
Click to expand...
Click to collapse
That is what my question was about. So the answer is unknown.
Thank you.
mikhailmv said:
That is what my question was about. So the answer is unknown.
Thank you.
Click to expand...
Click to collapse
It's a very valid question… the AT&T Galaxy S III is $550 out of contract; the T-Mobile version, $630.
If you're paying out of pocket, $80 less for what amounts to the same device (arguably, the AT&T one is better since it has an LTE radio) is nothing to sneeze at.
I am having the same question as well.
The situation here is the same to what I have as Rogers/Bell/Telus vs Wind/Mobilicity
I'd like the flexibility to use the phone across the network since the new carriers charge way cheaper than the big 3....
I suppose the hardware between the two model are identical. All support the same band 850 900 1700 2100 (AWS/LTE). Only the AWS version has the LTE radio disabled and HSPA 42 enabled???
It should work, the phone is locked to att thou. You will have to have it unlocked. But the skyrocket and the hercules were interchangeable between networks. But the international will not work on lte or Hspa.
Sent from my SGH-T989 using xda premium
Micronads said:
It should work, the phone is locked to att thou. You will have to have it unlocked. But the skyrocket and the hercules were interchangeable between networks. But the international will not work on lte or Hspa.
Sent from my SGH-T989 using xda premium
Click to expand...
Click to collapse
So you are saying that that radio modules of these two phones are identical. Meaning that T989 supports LTE, and I747 supports the 1700 band (they just have to be unlocked).
I'm gettin mine unlocked and using it on straight talk t mobile. I need to get that hspa 42 workin. It's just software. From what I gather, once t mobile rolls out their LTE they may just release a firmware update enabling LTE on the t mobile galaxy sIII's. This phone is a seven band monster world phone. To such an extent that carriers are turning features off.
---------- Post added at 09:46 PM ---------- Previous post was at 09:43 PM ----------
mikhailmv said:
So you are saying that that radio modules of these two phones are identical. Meaning that T989 supports LTE, and I747 supports the 1700 band (they just have to be unlocked).
Click to expand...
Click to collapse
All the radio modules on this phone are integrated in the S4 processor. And the processor is identical. One would have to conclude, that yes, that is the case.
From a strictly electrical background the modem is software running on transistors which can handle being pushed to the frequencies T-mobile requires, so I would think that it would be doable with the right software. When a transistor has the ability to handle the current and frequency the rest would be a matter of software, I assume.
As for LTE I have no knowledge as to the hardware or if there its something missing in non LTEs.
noahattic said:
I am having the same question as well.
The situation here is the same to what I have as Rogers/Bell/Telus vs Wind/Mobilicity
I'd like the flexibility to use the phone across the network since the new carriers charge way cheaper than the big 3....
I suppose the hardware between the two model are identical. All support the same band 850 900 1700 2100 (AWS/LTE). Only the AWS version has the LTE radio disabled and HSPA 42 enabled???
Click to expand...
Click to collapse
I have unlocked (Sim Unlocked) my SGSIII I747 from Bell and it works with Rogers and all... however i do not have a micro sim from Wind or Mobilcity to test it... however i wiill go to a few stores to test it out... if it works... which i assume it should.... but there are so many factors that it might not....
However, if someone like tomin.... i cant rememebr his id can provide an interchangable flashable modem for the two phones i747 could be used on aws 1700 using the radio from t999.
See the chart on Wikipedia
Samsung Galaxy S III Model variants
I've looked at the specs sheet from samsung.com and it's the same thing.
Weve been arguing in the other thread about how t999 has msm8260 instead of a msm8960Sent from my cm_tenderloin using Tapatalk 2
Unlocked as in correect combination of software loaded on the phone to correspond with the carrier, not simply unlocking the phone. More like unleashing its potential.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
It is interesting as its normally a possibility with Galaxy devices. This is a bit different since they have used slightly different models. We won't know until we get flashable radios and someone is brave enough to try to flash it on their device. I know with the Skyrocket I was able to flash a T-Mobile radio and get a 3G signal on wind (same type of network but in canada). The only limit was that you couldn't take a t-mobile version, flash at&t's radio and get LTE.
y2whisper said:
It is interesting as its normally a possibility with Galaxy devices. This is a bit different since they have used slightly different models. We won't know until we get flashable radios and someone is brave enough to try to flash it on their device. I know with the Skyrocket I was able to flash a T-Mobile radio and get a 3G signal on wind (same type of network but in canada). The only limit was that you couldn't take a t-mobile version, flash at&t's radio and get LTE.
Click to expand...
Click to collapse
It would be great if we ca use the same technique to make i747 work with Wind & Mobilcity and make it just like T999
Any Luck>>>
it's good finally there's not that big of a difference in hardware and looks vs the Galaxy s2. too many variants makes it difficult to buy any accessories

ATT Galaxy S II - i9100 T-Mobile 3G/4G Network???

Hey whats up erybody?
Im new to the forum as well as the android flashing/modding scene as i've always had an iPhone but recently gave in to this Galaxy sII as it looks and performs amazing. The only issue I have currently is I own an ATT Galaxy sII that is unlocked and I am using for T-Mobile but cannot get any 3G/4G network at all.
This phone is rooted and running cyanogen mod on ICS 4.0.4. I have read online about people flashing there ATT Note's radio to force your phone to accept 3G/4G for T-Mobile and I was just wondering if this is possible for the Galaxy SII? I tried using the same method but no luck, can anyone possibly point me to the right modem to install if one is available? This phone is great but I cant stand this slow ass EDGE signal.
Thanks :cyclops:
wexpac said:
Hey whats up erybody?
Im new to the forum as well as the android flashing/modding scene as i've always had an iPhone but recently gave in to this Galaxy sII as it looks and performs amazing. The only issue I have currently is I own an ATT Galaxy sII that is unlocked and I am using for T-Mobile but cannot get any 3G/4G network at all.
This phone is rooted and running cyanogen mod on ICS 4.0.4. I have read online about people flashing there ATT Note's radio to force your phone to accept 3G/4G for T-Mobile and I was just wondering if this is possible for the Galaxy SII? I tried using the same method but no luck, can anyone possibly point me to the right modem to install if one is available? This phone is great but I cant stand this slow ass EDGE signal.
Thanks :cyclops:
Click to expand...
Click to collapse
First off, you're in the wrong forum for your device.
This is the forum for the i9100, the international Galaxy S2.
You say you have the AT&T Galaxy S2... Which is the SGH-I777.
Second, since ATT and T-mobile use different frequencies for high speed mobile data, most devices for ATT will only get Edge on T-mobile. Vice versa, most devices for T-mobile, if unlocked for ATT, will only get Edge on ATT's network. SOME devices you can flash a different modem, because they have the requisite antenna hardware to get the necessary frequencies.
Unfortunately for you, the SGH-I777 isn't one of them.
Unless, you actually have the Skyrocket, which is the SGH-I727. (check the label under the battery to get the exact model number) That phone, you CAN flash a T-mobile modem to it and get high speed on T-mobile's network.
Ahhh I see. When I power on the phone it displays the international model however in the menu settings it does say SGH-I777 which is why I was a little confused since there are so many differen't models aparently.
Looks like im screwd until later this year when/if T-Mobile does go good on there word that they will be acquiring new towers to promote the other frequencies for ATT devices. Thanks for the reply.
wexpac said:
Ahhh I see. When I power on the phone it displays the international model however in the menu settings it does say SGH-I777 which is why I was a little confused since there are so many differen't models aparently.
Click to expand...
Click to collapse
The boot screen and indeed, the about phone screen can change depending on what is flashed to the phone. So if you flash an i9100 firmware to an i777, it will then display the wrong model when booting. Which is why I said to check the label under the battery to be sure.
wexpac said:
Looks like im screwd until later this year when/if T-Mobile does go good on there word that they will be acquiring new towers to promote the other frequencies for ATT devices. Thanks for the reply.
Click to expand...
Click to collapse
I wouldn't hold my breath for this to help you.
ctomgee said:
First off, you're in the wrong forum for your device.
This is the forum for the i9100, the international Galaxy S2.
You say you have the AT&T Galaxy S2... Which is the SGH-I777.
Second, since ATT and T-mobile use different frequencies for high speed mobile data, most devices for ATT will only get Edge on T-mobile. Vice versa, most devices for T-mobile, if unlocked for ATT, will only get Edge on ATT's network. SOME devices you can flash a different modem, because they have the requisite antenna hardware to get the necessary frequencies.
Unfortunately for you, the SGH-I777 isn't one of them.
Unless, you actually have the Skyrocket, which is the SGH-I727. (check the label under the battery to get the exact model number) That phone, you CAN flash a T-mobile modem to it and get high speed on T-mobile's network.
Click to expand...
Click to collapse
CTOMGEE,
I have the i9100 International Galaxy S2 and am wondering if I can access 3G speeds on T-Mobile? I know the phone is not 4G compatible, so unfortunately I won't be able to access those speeds, but I am wondering if I will be forced to use the EDGE network.
ellewms said:
CTOMGEE,
I have the i9100 International Galaxy S2 and am wondering if I can access 3G speeds on T-Mobile? I know the phone is not 4G compatible, so unfortunately I won't be able to access those speeds, but I am wondering if I will be forced to use the EDGE network.
Click to expand...
Click to collapse
Check your thread
Swyped from my Samsung Galaxy SII
Supercharged ParanoidAndroid 2.12
Dorimanx kernel 5.76B
GT I9100
Next phone: Galaxy NOTE II
ellewms said:
CTOMGEE,
I have the i9100 International Galaxy S2 and am wondering if I can access 3G speeds on T-Mobile? I know the phone is not 4G compatible, so unfortunately I won't be able to access those speeds, but I am wondering if I will be forced to use the EDGE network.
Click to expand...
Click to collapse
Not as of now. T-Mobile in the US uses AWS currently for 3g and "4g". This band requires both 1700 & 2100 mhz for data to get these speeds. The phone doesn't get 1700, do it won't get higher than Edge.
There are rumors T-Mobile will be re-purposing 1900 mhz (which the phone DOES get) for data, so if and when that happens, the phone will probably get high speed mobile data. But until then, you're out of luck for T-Mobile with this phone, and will have to use ATT to get high speed data.
Ananda
Hi ctomgee and others, I'm using a Galaxy S2 GT-I9100 that was bought unlocked. I'm also getting only 2G speeds on T-mobile. Could you tell me what is flashing the T-mobile modem and how it is done? Can I try to do this so that I can get 3G speeds? If this is not possible, would I get 3G speeds if I buy a S2 from T-mobile?
On the sidelines: What do they do to the phone that the phones bought from T-mobile would work but the others won't? Is it something done to the hardware or the software? If the change is in the software, can't we try to do it ourselves - are there any online tutorials on this?
ctomgee said:
Not as of now. T-Mobile in the US uses AWS currently for 3g and "4g". This band requires both 1700 & 2100 mhz for data to get these speeds. The phone doesn't get 1700, do it won't get higher than Edge.
There are rumors T-Mobile will be re-purposing 1900 mhz (which the phone DOES get) for data, so if and when that happens, the phone will probably get high speed mobile data. But until then, you're out of luck for T-Mobile with this phone, and will have to use ATT to get high speed data.
Click to expand...
Click to collapse
ananda.b said:
Hi ctomgee and others, I'm using a Galaxy S2 GT-I9100 that was bought unlocked. I'm also getting only 2G speeds on T-mobile. Could you tell me what is flashing the T-mobile modem and how it is done? Can I try to do this so that I can get 3G speeds? If this is not possible, would I get 3G speeds if I buy a S2 from T-mobile?
On the sidelines: What do they do to the phone that the phones bought from T-mobile would work but the others won't? Is it something done to the hardware or the software? If the change is in the software, can't we try to do it ourselves - are there any online tutorials on this?
Click to expand...
Click to collapse
Flashing a modem is essentially changing the software drivers for your antenna. This does not, however, change what frequencies your phone is capable of receiving. This is a hardware limitation.
The T-mobile USA Galaxy S2 is model number SGH-T989 - a totally different model than the GT-I9100. The hardware is completely different. The size itself, the CPU/GPU/SoC, the antenna hardware - all different. This isn't something you can fix with flashing a modem.
If you are patient, as I stated above, T-mobile USA is in the process of re-purposing a frequency the I9100 DOES get so it will get 3/4g on T-mobile. When that happens in the market you are in is up to T-mobile.
ctomgee said:
First off, you're in the wrong forum for your device.
This is the forum for the i9100, the international Galaxy S2.
You say you have the AT&T Galaxy S2... Which is the SGH-I777.
Second, since ATT and T-mobile use different frequencies for high speed mobile data, most devices for ATT will only get Edge on T-mobile. Vice versa, most devices for T-mobile, if unlocked for ATT, will only get Edge on ATT's network. SOME devices you can flash a different modem, because they have the requisite antenna hardware to get the necessary frequencies.
Unfortunately for you, the SGH-I777 isn't one of them.
Unless, you actually have the Skyrocket, which is the SGH-I727. (check the label under the battery to get the exact model number) That phone, you CAN flash a T-mobile modem to it and get high speed on T-mobile's network.
Click to expand...
Click to collapse
I spent hours online chatting with support trying to get this information and they couldn't provide it. 10 minutes of internet searching and you said EXACTLY what I needed to know. Thank you sir!! Helped me a ton.
Also, just a heads up. At the end of this year (2012) T-Mobile is going to launch their 1900 mhz band towers (see: newsroom.t-mobile(d0t)com/articles/4GNetworkEvolutionVendorsSelected) so AT&T phones that use that 4G band will work with T-Mobile once unlocked and moved over.
Thanks again!
Roelith said:
I spent hours online chatting with support trying to get this information and they couldn't provide it. 10 minutes of internet searching and you said EXACTLY what I needed to know. Thank you sir!! Helped me a ton.
Also, just a heads up. At the end of this year (2012) T-Mobile is going to launch their 1900 mhz band towers (see: newsroom.t-mobile(d0t)com/articles/4GNetworkEvolutionVendorsSelected) so AT&T phones that use that 4G band will work with T-Mobile once unlocked and moved over.
Thanks again!
Click to expand...
Click to collapse
Looks like i occasionally get the 4G speeds on tmobile on my i9100, but it switches between Edge and 4G quite frequently. Anyone know how to force a 4G?
mok86 said:
Looks like i occasionally get the 4G speeds on tmobile on my i9100, but it switches between Edge and 4G quite frequently. Anyone know how to force a 4G?
Click to expand...
Click to collapse
You can set the network mode to WCDMA only... but I think there's a problem with that. If you wander into an area where T-mobile doesn't have "4G" coverage on 1900mhz, then I don't think you'll have any signal at all. When it is set to GSM/WCDMA (Auto mode), it switches automatically to Edge if you don't get the "4G" signal.
Wrong forum, this is for the international i9100 not Skyrocket.
TheATHEiST said:
Wrong forum, this is for the international i9100 not Skyrocket.
Click to expand...
Click to collapse
The OP is from July. The guy above me today was asking a general question, and ATT sells TWO variants of the GS2 - the SGH-I777, which is their branded regular Galaxy SII, and the SGH-I727, which is the "Skyrocket" - which is the variant that has LTE.
I'm confused
Sent from my Zanpakuto using Getsuga Tensho!
Nick281051 said:
I'm confused
Sent from my Zanpakuto using Getsuga Tensho!
Click to expand...
Click to collapse
Guy posted in i9100 forums because he tripped the flash counter causing his phone to say i9100 so he was confused and posted there. Asked about TMO only getting 2g and was already answered,
ctomgee said:
You can set the network mode to WCDMA only... but I think there's a problem with that. If you wander into an area where T-mobile doesn't have "4G" coverage on 1900mhz, then I don't think you'll have any signal at all. When it is set to GSM/WCDMA (Auto mode), it switches automatically to Edge if you don't get the "4G" signal.
Click to expand...
Click to collapse
Same problem , get mostly Edge and Very less 4G with my International 9100 in T Mobile. Was wondering if a modem change will fix the problem . I am currently on Slimbean Rom. Any suggestions guys ?
nikunj_cal said:
Same problem , get mostly Edge and Very less 4G with my International 9100 in T Mobile. Was wondering if a modem change will fix the problem . I am currently on Slimbean Rom. Any suggestions guys ?
Click to expand...
Click to collapse
No. Its a hardware thing. Not that complicated to understand really.
Sent from my Galaxy Nexus
Pirateghost said:
No. Its a hardware thing. Not that complicated to understand really.
Sent from my Galaxy Nexus
Click to expand...
Click to collapse
Agreed since we are missing 1700mhz here but I was wondering whether its possible to capitalize on the 1900 mhz freq.
nikunj_cal said:
Agreed since we are missing 1700mhz here but I was wondering whether its possible to capitalize on the 1900 mhz freq.
Click to expand...
Click to collapse
hello every one I was wondering I have the i9100 and I have metropcs on it and I also flashed omni rom on it but I was thinking that I need to flash the us radios on it because I got it from Japan and as I can make calles they drop alot and the network is so slow so is this something where I would need to flash that ? and if so can someone post a link for the file's?

Question about International Phone compatibility

I was thinking about buying the International unlocked Galaxy SIII GT I9300 and saw how it would be cheaper in the long run, but my main motivation was being able to move from carrier to carrier if I wanted to and not having a contract. I seem to be reading though that the international version is only compatible with AT&T and T-mobile at 3G and is not capable of 4G speeds at all. Also, that even American versions are not always compatible with eachother. So am I correct in thinking that if I get an international version I'll be stuck between T-Mobile and Sprint at 3Gs. And that nothing can be done to the phone to allow an International phone to work with Sprint or even an American Sprint to work on a T-Mobile network? I'm starting to think it might be easier to just get an American phone and jailbreak it.
The international one will never work with sprint or Verizon, the AT&T and t-mobile versions will never work with sprint or Verizon.
The difference is hardware, Verizon and sprint are cdma, the rest are gsm.
The international one will work with AT&T with 3g and 4g(actually its hspa+ which is technically 3.5g) and will work on T-Mobile only in 2g for now, in a few months it will work on 3g and 4g when they refarm their 1900 or 1700mhz (can't remember which) band to 3g.
No matter what you do to either the international or US gsm versions they will NEVER EVER WORK ON SPRINT OR VERIZON.
Sent from my GT-I9300 using xda premium
I see, that's what I was afraid of. The AT&T and T-Mobile option still seem attractive, but in your opinion will the Verizon/Sprint with a jailbreak route be better in the long term since the LTE is by far the superior option(from what I've read)? I've seen AT&T has LTE but the International version wouldn't be able to work on a LTE network anyway, would it??? I plan to download most things on my laptop and move them to the phone anyway, the only important thing to me internet speed would affect and my main concern would be live video chat, would the 3G or HSPA+ be sufficient for that? Other than talk and text the phone will be mainly used for games, movies, music and the superior GPU in the International version I think would be better for that? Are there any other phones comparative to the Galaxy III you know of that might have both the CDMA and the GSM, the "world phones" as I've seen them called?
Matt45045 said:
I see, that's what I was afraid of. The AT&T and T-Mobile option still seem attractive, but in your opinion will the Verizon/Sprint with a jailbreak route be better in the long term since the LTE is by far the superior option(from what I've read)? I've seen AT&T has LTE but the International version wouldn't be able to work on a LTE network anyway, would it??? I plan to download most things on my laptop and move them to the phone anyway, the only important thing to me internet speed would affect and my main concern would be live video chat, would the 3G or HSPA+ be sufficient for that? Other than talk and text the phone will be mainly used for games, movies, music and the superior GPU in the International version I think would be better for that? Are there any other phones comparative to the Galaxy III you know of that might have both the CDMA and the GSM, the "world phones" as I've seen them called?
Click to expand...
Click to collapse
You can't/don't jailbreak Android phones. Hard to even know what you are talking bout trying to accomplish? It's very simple.
1. Buy a phone from a carrier and use it on that carrier. That's the easiest option.
2. Buy an International GS3 and use it on AT&T 3G or 2G.
3. Buy an International GS3 and use it on T-Mobile 2G.
If you try any other options you are just going to confuse yourself.
Definitely don't get the sprint or Verizon ones, you are stuck on cdma then. The at&t one has LTE and the T-Mobile one has dc hspa+ (theoretically up to 42mbps) the international one has standard hspa+ (up to 21mbps) and I regularly get between 5-8mbps down and 2-3mbps up and I live in the country.
The gpu and cpu on the international one are better too.
Sent from my GT-I9300 using xda premium
I have a bad habit of using the words root and jailbreak interchangeably, I meant root the phone. I guess I have to decide how important LTE is to me. It'll either be AT&T or the International version. The superior GPU and CPU are attractive, but so are the LTE speeds. But I guess with the limited data maybe not. But thanks for your help, this clarified a lot for me.
Frequency Concern
I have the exact same problem!
I am planning to buy a Galaxy Nexus, which works for UMTS (850/900/1700/1900/2100MHz) and GSM (850/900/1800/1900MHz). I read from wikipedia that the 3G and 4G networks from Tmobile are carried on the frequency of both 1700MHz and 2100 MHz. Does that mean Galaxy Nexus can use 3G and 4G on Tmobile network?
playmaker1 said:
I have the exact same problem!
I am planning to buy a Galaxy Nexus, which works for UMTS (850/900/1700/1900/2100MHz) and GSM (850/900/1800/1900MHz). I read from wikipedia that the 3G and 4G networks from Tmobile are carried on the frequency of both 1700MHz and 2100 MHz. Does that mean Galaxy Nexus can use 3G and 4G on Tmobile network?
Click to expand...
Click to collapse
Yes, the galaxy nexus will work fine on tmo, its pentaband.
I brought my Irish one to america and used it on tmo no problem.
Sent from my GT-I9300 using xda premium
nodstuff said:
Yes, the galaxy nexus will work fine on tmo, its pentaband.
I brought my Irish one to america and used it on tmo no problem.
Sent from my GT-I9300 using xda premium
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Click to collapse
Oh really?! Then I should sell my international version of Galaxy S II for a Galaxy Nexus. S II doesnt receive 1700MHz. I read from Wikipeida: This band (Tmobile 3G and 4G) was an area of wireless spectrum, half in the 1700 MHz (1.7 GHz) and half in the 2100 MHz (2.1 GHz) frequencies. SO I was thinking: Hey, how about getting a phone with both 1700 and 2100MHz to work on Tmobile 3G and 4G.
So you can actually use 3G? or even 4G on Tmobile? Is it so slow or weak that makes you want to change carrier?
I9300
nodstuff said:
The international one will never work with sprint or Verizon, the AT&T and t-mobile versions will never work with sprint or Verizon.
The difference is hardware, Verizon and sprint are cdma, the rest are gsm.
The international one will work with AT&T with 3g and 4g(actually its hspa+ which is technically 3.5g) and will work on T-Mobile only in 2g for now, in a few months it will work on 3g and 4g when they refarm their 1900 or 1700mhz (can't remember which) band to 3g.
No matter what you do to either the international or US gsm versions they will NEVER EVER WORK ON SPRINT OR VERIZON.
Sent from my GT-I9300 using xda premium
Click to expand...
Click to collapse
Help, I have an I9300 and I can't configure it to recieve data I am on the AT&T GO $60 data plan and AT&T says it is my phones problem. I've tried a lot of different settings and it still shows up as disconnected under the mobile network state. Any help would be greatly appreciated.
---------- Post added at 01:13 PM ---------- Previous post was at 12:56 PM ----------
nodstuff said:
Definitely don't get the sprint or Verizon ones, you are stuck on cdma then. The at&t one has LTE and the T-Mobile one has dc hspa+ (theoretically up to 42mbps) the international one has standard hspa+ (up to 21mbps) and I regularly get between 5-8mbps down and 2-3mbps up and I live in the country.
The gpu and cpu on the international one are better too.
Sent from my GT-I9300 using xda premium
Click to expand...
Click to collapse
Help, I have an I9300 and I have tried for a week to get AT&T GO set up for data. I can talk and text fine, but no luck with data AT&T says it is my phone. Under mobile network state it says disconnected. any help would be greatly appreciated. It is an unlocked international GSM phone.
I have a Samsung GT-I9300 unlocked Gsm phone. I have started AT&T GO $60 data plan. I have tried for a week now to get data with no luck. I can talk & text fine, and it works great off of WI-FI. AT&T has tried everything they can do and says it is a problem with my phone. I was previously on Straight Talk but was stuck with EDGE speeds and not good coverage. Any help would be greatly appreciated.

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