Database Develop

[Q] Change Galaxy S modem to US Frequencies?

No, you'll need to go with a carrier like T-Mobile who support the same frequencies as the international version (I assume, I haven't checked them recently).

T-Mobile has a 2100 MHz band but it's paired with 1700 MHz for AWS so I'm not sure if that would actually work.
The 1900 MHz band would get reception from AT&T, although only in areas where they're using 1900, probably in the city.
That's just for 3G though. If you don't need 3G then T-Mobile and AT&T are both GSM carriers.

you will have 2g coverage with at&t and tmobile, and some 3g with at&t, when you have wcdma 1900 coverage... that's about it

I suck at knowing these radios. But, if you are visiting friends, what you can try to do is borrow their sims from different carriers for 5 minutes and see what works in the area(s) you visit. Just an out of the box thought.

AT&T is using 850/1900MHz 3G/UMTS bands (if i'm not mistaken),
i9000 international version supports 3G/UMTS 900/1900/2100 MHz, 850MHz not included.
so I think you are not able to use the 3G network, but the GSM should be working find although it's much slower.

Yup
That's why us USA folks have to wait for either a USA or Australian Variant of the device.

Thanks a lot for all your replies! I was hoping Samsung would be lazy and build the same radio in all of it's devices. Guess I was wrong. Still, thanks a lot, I'll see how well it works with 2G.

Is there still no way to change the UMTS band on European Galaxies so they work in the US?

Nope. You would have to hardware mod the phone.

They already do on 1900 att and thats that
quaker5567 said:
Is there still no way to change the UMTS band on European Galaxies so they work in the US?
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Sent from my i9000M

I know this is an old thread, but I was looking for information about what modems are for what phones and came across it and thought that as an AT&T customer, I should clarify some information.
Most of AT&T 3G network uses 1900 MHz. AT&T is also "overlaying" 850 MHz over their existing 1900 MHz to increase capacity. There may be some 850 MHz only locations, but I am not aware of any. For the most part, if your phone supports UMTS1900, you should be able to get 3G anywhere that AT&T's map shows 3G availability.

nkrick said:
I know this is an old thread, but I was looking for information about what modems are for what phones and came across it and thought that as an AT&T customer, I should clarify some information.
Most of AT&T 3G network uses 1900 MHz. AT&T is also "overlaying" 850 MHz over their existing 1900 MHz to increase capacity. There may be some 850 MHz only locations, but I am not aware of any. For the most part, if your phone supports UMTS1900, you should be able to get 3G anywhere that AT&T's map shows 3G availability.
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if you bought a i9000m from canada. you can use UGKC1 or UGJL2 modem to enable 850
im currently on at&t using i9000m with ZSJPG modem with 850mhz enabled

Just 1900Mhz isn't all that great, kinda slow and spotty. Don't get me wrong, it's usable, but 850 is significantly faster/better at least where I live.
I have an I9000M but occasionally use a modem without 850, and it's not as good.
While there are roundabout ways to get 850 on other modems, I usually use one of the Bell ones like JL2 or KC1.

I am using jl2. kc1 did not work reliably with my microcell and would instead keep trying to pull in weak signal thus sucking battery. As for 850mhz only.. most of the I93 corridor on new England is 850mhz only.
Sent from my GT-I9000 using Tapatalk

Frostshock said:
T-Mobile has a 2100 MHz band but it's paired with 1700 MHz for AWS so I'm not sure if that would actually work.
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It's not paired. It's a single band that uses 1700 MHz for upload and 2100 MHz for download. Just like the international 2100 Mhz band uses 2100 MHz for download and 1900 MHz for upload.
http://en.wikipedia.org/wiki/UMTS_frequency_bands

So just to clarify, my stock i9000m, running 2.3.3 and UGKG3 will get 3G in southern California on both the 850 and 1900 bands? UGKG3 can use both bands?
Sent from my GT-I9000M using xda premium

[Q] Can I change the Galaxy S phone frequencies using different Modem driver?

Do all the Galaxy S variations have the same modem/phone frequency hardware?
If so, I wondered if I could use Odin to flash the Captivate modem into the Galaxy S I9000 and get the USA phone frequencies working???
I have a Captivate now, but I much prefer the central recessed home button of the I9000. But the I9000 frequencies dont work with Telecom XT in New Zealand. (Captivate does work here)
So... can I just flash with the Captivate Modem into a Galaxy S and get it working in the UMTS 850 Mhz range?
In a nutshell, I just want to get the I9000 to work on the Captivate Mhz bands...
Captivate bands are...
GSM: 850, 900, 1800, 1900
UMTS: 850, 1900, 2100
I9000 bands are...
GSM: 850, 900, 1800, 1900
UMTS: 900, 1900, 2100
(I did do a search but got conflicting answers)
Thanks for your help.
Scott

No... diff hw
Sent from my GT-I9000M using XDA App

lgkahn said:
No... diff hw
Sent from my GT-I9000M using XDA App
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Hmmm... bugger.
I suspected that, but I asked the same question within another thread and was told changing the modem would pork.
Now I must pray to the internet god that they will provided definitive guidance... preferably within this thread

Heaps have tried but its dif hardware, Why else would you get the EXACT same hardware as AT&T/TELSTRA Captivate? They all use 850mhz UTMS. If the phone works for you then great as 850mhz is better then 900mhz due to it being able to go through walls better and other mumble jumbo. Also you can't change the face/lcd as they are dif too. Seems like its a dif phone all round

U can get an I 9000m from Canada... looks like std I 9000 but has bands u want... that is what I did.. there are threads about it search.
Sent from my GT-I9000M using XDA App

i9000 has 850/1900 MHz 3g support?

Someone at my workplace is selling me his galaxy s but the model is not i9000 , its i9000l , i really wanted to buy the i9000 because thats the model most roms are build for , my provider uses 850/1900 MHz for 3g , does the original i9000 has support for 850/1900 MHz or do i have to buy the i9000l?

The international version doesn´t support 850 but it does support 1900.

What service provide are you with?
If Telstra you reeeeeeally want 850MHz operation.

jim5055 said:
What service provide are you with?
If Telstra you reeeeeeally want 850MHz operation.
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movilnet in venezuela, latin america

Oops next time think I will check countries.
Sent from my GT-I9000M using XDA App

[Q] 850 band on GT-I9000

hey,
i have a GT-I9000, and i'm trying to enable 850mhz band for 3g,
i flashed the jjjv5 modem which is 850enabled,
and selected the 850 band through *#2263#*, the second i select 850 i get no signal, does that mean my phone isn't 850mhz capable or does it mean there is no 850mhz reception in my area ?

galaxy s suports all bands
2G Network GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 900 / 1900 / 2100
so you dont have 850 band in your area.

perhaps i was not clear - i'm trying to connect to 850mhz WCDMA band, not GPRS/GSM.

where do you live ? do you have the international i9000?

i live in israel, where we have a 850mhz/2100mhz 3g carrier (Pelephone)
the phone was purchased privately, not from the carrier.
i'm not quite sure about the phone version, the box states UMTS bands as 2100,1900,900.
the writing on the box and every document about the phone states GT-I9000.
does that mean that 850 3g band is not possible for me ?

i9000 doesnt support israel's 850 3g band, you can use 2100 instead which is suported by both ,phone and carrier

f3n0m3no said:
i9000 doesnt support israel's 850 3g band, you can use 2100 instead which is suported by both ,phone and carrier
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I'm also having a similar problem. im in Honduras with Tigo paid for 3g but only connecting to edge, i have the gingerbread xwjw5 build. I have a unlocked gt-i9000

only if you have the I9000T you can use the 850 band

kernelfreak said:
only if you have the I9000T you can use the 850 band
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well guess ill be replacing this phone lol

keen to swap? im in aus and got a i9000t and would like to stay on Optus :/

European i9000 to work with 3G in Canada??

Yo folks. I am finally flying back to Toronto tomorrow after having been here in Italy for the past 4 years, and I am so pumped up ...
Anyways, I have got an Italian Samsung Galaxy S i9000 with 1900/2100 UMTS bands and the current baseband firmware is I9000XXJVU.
I was wondering if by flashing a Canadian baseband version my SGS perhaps would might give me 3G with Telus or Fido in Canada.
Is that something that could be done via sw or is rather something hardware involved??
Thanks

Do not flash a canadian baseband. There is no way to enable the 850 MHz band in your hardware.
However, in Toronto you will be able to get by by using only the 1900 MHz band. 850 MHz is mostly usefull for rural areas and/or basements.
So to answer your question, yes, it will work.
With Rogers/Fido, you will fall back to EDGE if you are out of the 1900 MHz UMTS coverage.
With Telus/Bell you fill loose signal if you are out of the 1900 MHz UMTS coverage.

zorxd said:
Do not flash a canadian baseband. There is no way to enable the 850 MHz band in your hardware.
However, in Toronto you will be able to get by by using only the 1900 MHz band. 850 MHz is mostly usefull for rural areas and/or basements.
So to answer your question, yes, it will work.
With Rogers/Fido, you will fall back to EDGE if you are out of the 1900 MHz UMTS coverage.
With Telus/Bell you fill loose signal if you are out of the 1900 MHz UMTS coverage.
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Cool mate.. didn't know some Canadians mobile ISP uses 1900mhz band for 3G.. I am going to get a find number today ..
Thanks