Database Develop

1700Mhz UMTS Possibility?

According to the manual of the kaiser/tilt, it has the ability for 1700mhz, but only in japan. Also, according to the FCC, you cant use it for T-Mobile's soon-to-be-released 3G service which will be at 1700mhz. Do you think it would be possible to somehow enable the 1700mhz band to be used on T-Mobile's 3G when it is available?

staulkor said:
According to the manual of the kaiser/tilt, it has the ability for 1700mhz, but only in japan. Also, according to the FCC, you cant use it for T-Mobile's soon-to-be-released 3G service which will be at 1700mhz. Do you think it would be possible to somehow enable the 1700mhz band to be used on T-Mobile's 3G when it is available?
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Not sure what manual you are referring to. Are you sure you aren't confusing it with 2100MHz? Japan uses 2100MHz, not 1700MHz. And as far as I know, no commercially available phones support 1700MHz currently.

Well the FCC has a T-Mobile manual online and inside it says it can do 1700mhz in Japan.
The Kaiser 100 manual I am talking about is listed in the link below:
http://gullfoss2.fcc.gov...
Here is a screen shot: http://sys9five.ath.cx:8080/kaiserBands.jpg

Ummm, OK, that's because they will create different units for sale in the different areas. So, if you are asking will today's available Kaiser work on 1700 when TMo finally rolls out 3G? The answer is no. And no tweak of the radio or ROM will allow it do so.
If you are asking will there be a Kaiser that works on TMo's 3G when its available? Ya, most likely yes.

K, thanks for clearing that up. I just saw that 1700 and thought maybe the radio could support it by just unlocking that feature. Oh well

e-mobile uses UMTS/3.6M HSDPA 1700MHz in Japan.
I'm using this band by SHARP S01SH(called EM ONE).
I tried e-mobile's USIM into my Kaiser.
But, my Kaiser does'nt catch the wave.
I can't find the registry setting for 1700MHz UMTS.
And I don't have heard anyone sucessed catch 1700MHz UMTS wave by Kaiser.

is the USA 3g band going to be a software or hardware update?

My understanding is that there are people who have the TP2 activated here in the US...
but 3g doesn't work since it uses a different band in EU
so...the million dollar question...
is this hardware or software issue and eventually fixable with a rom upgrade in the future?
thanks for your input

eigerzoom said:
My understanding is that there are people who have the TP2 activated here in the US...
but 3g doesn't work since it uses a different band in EU
so...the million dollar question...
is this hardware or software issue and eventually fixable with a rom upgrade in the future?
thanks for your input
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Since the hardware is very much like the Raphael hardware I would guess that the correct hardware needs to be in place for US 3G. I hope I am wrong since I have a euro version TP2 here in the states.

yeah...its looking like hardware...

It is a hardware thing. They are on different bands (Quad band and tri-band).

dgourd said:
It is a hardware thing. They are on different bands (Quad band and tri-band).
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I dont think it is even bands...my TP2 is quad band I believe and can not get 3G with AT&T.
Bands for my phone Quad Band 850/900/1800/1900

yah plenty of US ppl have them but the euro models only have 3g on 2100mhz (basically wifi???)
usa 3g is on different band...
the quad bands are for phone use (i think...but i'm a noob)
att 3g is 850.1900 tibble is 1700 and telstra is 850/1900
so if i understand it right...to gain 3g on different band besides 2100 (wifi/eu) you are looking at hardware

eigerzoom said:
but the euro models only have 3g on 2100mhz (basically wifi???)
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what does wifi have anything to do with this?

cmonex said:
what does wifi have anything to do with this?
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uh...lol...dont mind me
im just a nub
i should have said wcdma
astain hellbinger (im sure i mispelled that) has been home schooling me...
and he represents any knowlede i have tried to represent here...
forgive my crude interpretation
some of it is sticking though...lol

If you purchased a quadband unlocked TP2, you will never be able to get US 3G on it unless you can get the hardware modified (which in all likelihood, you can't).
If you have a TP2 with triband then it will either support AT&T (850/1900/2100) or T-mobile USA (850/1700/2100). A phone model will probably not come out that supports both T-mobile and AT&T 3G frequencies. This would require a quadband phone with (850/1700/1900/2100). A phone with all four of those frequencies has never been made.
EDGE will work on almost all carriers, world-wide, on a quadband phone EDGE will work on most carriers world-wide on a triband phone.
850 is mostly used for EDGE (both up and downlink). 1700/1900 are commonly used for uplink 3G. 2100 is commonly used for downlink 3G.
I hope that this clears things up.

As mentioned above, internal hardware is almost identical as the Raphael.
This thread gathered the most information for 3G Raphael in the US.
http://forum.xda-developers.com/showthread.php?t=420865&page=40
So probably hardware and no go although LTxda mentioned bricking his Raphael trying to get 3G working with Elite's team and cmonex, so maybe she as something to add !? =Þ

skyler17 said:
If you purchased a quadband unlocked TP2, you will never be able to get US 3G on it unless you can get the hardware modified (which in all likelihood, you can't).
If you have a TP2 with triband then it will either support AT&T (850/1900/2100) or T-mobile USA (850/1700/2100). A phone model will probably not come out that supports both T-mobile and AT&T 3G frequencies. This would require a quadband phone with (850/1700/1900/2100). A phone with all four of those frequencies has never been made.
EDGE will work on almost all carriers, world-wide, on a quadband phone EDGE will work on most carriers world-wide on a triband phone.
850 is mostly used for EDGE (both up and downlink). 1700/1900 are commonly used for uplink 3G. 2100 is commonly used for downlink 3G.
I hope that this clears things up.
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http://en.wikipedia.org/wiki/UMTS_frequency_bands

Xperia X1i to X1a, is possible?

I have recently buyed to a friend this phone, and I can't connect to my provider 3G network. Reading, I saw that it is because I have X1i, and I need X1a (I live in Argentina, South America).
Well, is possible to turn my X1i to X1a?
Please help!
P.D.: Sorry for my English.

Sorry, I don't think you can do that, since this is a hardware issue....But, I'm not too sure.

Fuzalert2k said:
Sorry, I don't think you can do that, since this is a hardware issue....But, I'm not too sure.
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You just need to flash a NAM (North American) ROM if you want to change it to X1A. You can check on the ROM section of this forum.

laurence0609 said:
You just need to flash a NAM (North American) ROM if you want to change it to X1A. You can check on the ROM section of this forum.
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no..
its a chipset issue, there is nothing you can do.

^^^ what he said....

there is no way, I sold my X1i and bought an X1a because I need my HSDPA.
The slower camera framerate doesn't make a diff, I don't take videos with my phone anyways.

what is the difference between Xi1 an X1a
and which one is the latest ?
Few Weeks Back I purchased X1i
and change the ROM to ENERGY ROM .. which was the best Stable ROM SO far.
please suggest

"what is the difference between Xi1 an X1a
and which one is the latest ?"
the cpu is the difference
non of them are the latests
x1i use qualcomm MSM7200a
which support the frequencies used outside of usa and
support 30fps video capture which because of a lawsuit from broadcomm
qualcomm can't offer in usa
x1a use qualcomm MSM7201A
which support the frequencies used inside of usa and
don't support 30fps video capture which because of a lawsuit from broadcomm
qualcomm can't offer in usa

I was just in the USA and I have an X1i. I could make calls just fine with it. If I have it correctly, the only difference is in 3G networks. The x1i uses UMTS 900MHz (amongst others) while in America (not sure if just north or both north and south America) they use the 850MHz band (amongst others). This, however, is a hardware issue that you cannot change.
Luckily, you'll still be able to use the other 3G bands, so you should still be able to get on 3G. Plus, both the X1i and X1a have the same quad band GSM Frequencies that means they are both capable of working on any 2G network in the world.

i have an X1i and live in the united states. i can never, ever connect to 3G, only Edge or HSDPA can be connected to. really it's fine, i'm on HSDPA the majority of the time, especially since i live and work in Los Angeles. and HSDPA is always blazing fast for me, especially at full reception......

I have X1i in Canada. Reflashing US rom makes it reports X1a, but 3G is still not available.

asayamalaka said:
i have an X1i and live in the united states. i can never, ever connect to 3G, only Edge or HSDPA can be connected to. really it's fine, i'm on HSDPA the majority of the time, especially since i live and work in Los Angeles. and HSDPA is always blazing fast for me, especially at full reception......
Click to expand...
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HSDPA is 3g: GPRS is 2G, EDGE is improved 2G; UMTS is 3G and HSDPA is improved 3G.
X1a is 850/1900/2100 Mhz 3G, AT&T uses both 850 and 1900. X1i uses 900/1900/2100 3G.
This means if you are on AT&T you may not get 3G with X1i (depending on the frequencies in your area). If you are on T-Mobile in U.S. then it doesn't matter because they use 1700Mhz 3G and neither X1i or X1a will work on 3G, and they will perform equally well (except for the video framerate issue which has been discussed earlier in this thread).
If you are not in U.S. or Australia (They use 850Mhz also) than get X1i. If you want to be sure you will get 3G service in U.S. on AT&T than get X1a. I think Australian providers all use NextG which is 850Mhz so they will also use X1a.
This is HARDWARE difference. Changing software/ROM will NOT change these frequency differences.
I hope this ends this thread because this has been covered many times in many places, both inside and outside of XDA-Developers.

Hannigan174 said:
HSDPA is 3g: GPRS is 2G, EDGE is improved 2G; UMTS is 3G and HSDPA is improved 3G.
X1a is 850/1900/2100 Mhz 3G, AT&T uses both 850 and 1900. X1i uses 900/1900/2100 3G.
This means if you are on AT&T you may not get 3G with X1i (depending on the frequencies in your area). If you are on T-Mobile in U.S. then it doesn't matter because they use 1700Mhz 3G and neither X1i or X1a will work on 3G, and they will perform equally well (except for the video framerate issue which has been discussed earlier in this thread).
If you are not in U.S. or Australia (They use 850Mhz also) than get X1i. If you want to be sure you will get 3G service in U.S. on AT&T than get X1a. I think Australian providers all use NextG which is 850Mhz so they will also use X1a.
This is HARDWARE difference. Changing software/ROM will NOT change these frequency differences.
I hope this ends this thread because this has been covered many times in many places, both inside and outside of XDA-Developers.
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Click to collapse
yes i thought so, that's why i'm always confused as to how i can lock into HSDPA but never 3G. which is fine! it's just that i know i can get 3G in some areas i can't get HSDPA and can only get Edge, which is major slowage action...

[Q] Is it possible to get the T Mobile 3G network on an AT&T Tilt 2 device?

I purchased a jailbroken AT&T Tilt 2 online but Im using T Mobile service and I was told that I wouldn't be able to access the T Mobile 3g Network with this device. Could someone verify that this true or if not can someone give me some tips on how to set it up on my device.

Its true, because I have a Tilt 2 unlocked to T-Mobile as well. Is there a way to get 3G speeds, I don't know. But honestly, I've never really noticed a difference. But then again, I do stay away from data heavy sites like Youtube and whatnot.

Hmm, interesting question. The main issue is whether the phone has the right bands to connect to the 3G network in question. Its a hardware issue, and either the phone has the right bands built into the chipset or it doesn't. There is no way to change this with software or by changing settings.
T-Mob uses 1700 and 2100 MHz bands, where ATT uses 850 and 1900 MHz bands. HOWEVER, the ATT branded Tilt 2 also has the 2100 MHz band for international use. If your T-Mob service area is on the 2100 MHz bands, its possible (if you area is on 1700 MHz, its not going to work no matter what). In theory, it SHOULD work. I've made many trips to Japan, which uses 2100 MHZ for both voice and data, and my Tilt 2 (and old Tilt before it) has always worked flawlessly on their networks.
But whether it really works or not, I have no idea. Searching around the net yields some posts on other forums asking the same exact question, with conflicting answers (perhaps somebody on here can enlighten?). My gut says, its either its going to work or its not, it shouldn't take any additional setup. Have you tried it yet?
But in short, it was a mistake to buy the ATT branded version. You should have bought the T-Mob branded Touch Pro 2.

Oh, and wrong subforum, BTW. This has nothing to do with ROM development. This should be in the Touch Pro 2, Tilt 2 General forum. But don't cross post there, the mods will probably move this thread over there for you.

redpoint73 said:
...snip...
T-Mob uses 1700 and 2100 MHz bands, where ATT uses 850 and 1900 MHz bands. HOWEVER, the ATT branded Tilt 2 also has the 2100 MHz band for international use. If your T-Mob service area is on the 2100 MHz bands, its possible (if you area is on 1700 MHz, its not going to work no matter what). In theory, it SHOULD work. I've made many trips to Japan, which uses 2100 MHZ for both voice and data, and my Tilt 2 (and old Tilt before it) has always worked flawlessly on their networks.
...snip...
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The 2100 MHz band you're referring to is different on both companies' devices. For T-Mobile, 2100MHz is the upload frequency. The worldphone AT&T 2100MHz band is a download frequency. 3G requires 2 frequencies to operate in that manner.
The 2100MHz frequency is accompanied by the 1900MHz frequency for uploads. The AT&T Tilt2 has this frequency set to allow both.
As for Japan, I didn't know they were on the 2100MHz band. I've only every seen a couple of companies on 850, 1500, or 1700 MHz. Where were you that you used 2100MHz or which company? I just like to keep up on where the bands are useful when I make trips to Asia.

Ahh, that's right, I think I did read somewhere, that the 1700/2100 MHz bands are used by T-Mob as download/upload. Not like ATT, where which of the 850,1900 MHz band is used for 3G depends on the geographic location/market.
That means the OP is SOL on getting 3G on the Tilt2, right? He would need BOTH the 1700 and 2100 MHz bands on his phone?
Japan uses 2100 MHz exclusively, standardized nationwide, as far as I know. Same with South Korea (although ATT lists that one carrier in S. Korea also uses CDMA 1800, not sure what the deal with that is).
If the 2100 MHz band on the ATT Tilt 2 is just for download, wouldn't this mean that my phone would not be able to connect to the data network in Japan?

redpoint73 said:
Ahh, that's right, I think I did read somewhere, that the 1700/2100 MHz bands are used by T-Mob as download/upload. Not like ATT, where which of the 850,1900 MHz band is used for 3G depends on the geographic location/market.
That means the OP is SOL on getting 3G on the Tilt2, right? He would need BOTH the 1700 and 2100 MHz bands on his phone?
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Exactly right. It's a hardware problem, not software as some people think. I seem to answer this question at least once a week here. lol The radio chip is different for each model of the Rhodium. That's one of the differences between the several versions.
Japan uses 2100 MHz exclusively, standardized nationwide, as far as I know. Same with South Korea (although ATT lists that one carrier in S. Korea also uses CDMA 1800, not sure what the deal with that is).
If the 2100 MHz band on the ATT Tilt 2 is just for download, wouldn't this mean that my phone would not be able to connect to the data network in Japan?
Click to expand...
Click to collapse
It depends on what the network is set up as. 3G worldwide requires two bands to operate because of the bandwidth. GPRS and EDGE only require one. If this 2100 MHz frequency is one of the later, then it will work just fine. If this is a 3G band, then it is VERY likely to be paired with the 1900MHz frequency range. That's on GSM, anyway. I'm not 100% sure what CDMA frequencies are their.

Awesome - HD7 on AT&T!

Picked up my HD7 from the local T-Mobile Store, acquired my unlock code, applied successfully and was up and running (Exchange and all) within 30 minutes on AT&T.
T.J.

Why do you want to spend so much of money and use it on edge only network ?

why do you want to ruin his experience since apparently he hasn't noticed yet ...

unlockMe said:
why do you want to ruin his experience since apparently he hasn't noticed yet ...
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lol (10 chara)

tjy said:
Picked up my HD7 from the local T-Mobile Store, acquired my unlock code, applied successfully and was up and running (Exchange and all) within 30 minutes on AT&T.
T.J.
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How did you get the unlock code so fast?

tjy said:
Picked up my HD7 from the local T-Mobile Store, acquired my unlock code, applied successfully and was up and running (Exchange and all) within 30 minutes on AT&T.
T.J.
Click to expand...
Click to collapse
So exchange works no problem. How about data connection to the Internet ans speed?

tjy said:
Picked up my HD7 from the local T-Mobile Store, acquired my unlock code, applied successfully and was up and running (Exchange and all) within 30 minutes on AT&T.
T.J.
Click to expand...
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Oh and the tmobile store today told me unless i was a customer they couldnt sell it to me? $449

Biggzz said:
Oh and the tmobile store today told me unless i was a customer they couldnt sell it to me? $449
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Course they said that. They want the money from the contract/upgrade. Call up corporate and let them know the store would not sell you a phone. There are no restrictions on phones being sold outright, but sometimes, because these stores are not corporate stores, they can enforce their own rules, but reporting them can sometimes make them change their mind.

vikramdhani said:
Why do you want to spend so much of money and use it on edge only network ?
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how SLOW is edge? Is like like a very bad wifi connection? Hehehe... No really, I want to know.

No smartphone is worth the pain of Edge!

I don't know about at&t, but with t-mobile, edge is like not having an internet connection. About 100 kbps and alot of auto updates time out.

Does AT&T 3G require a special frequency that isn't covered by Quad Band? Or is it that T-Mobile 3G has a special, non Quad Band frequency?

Jonno2343 said:
Does AT&T 3G require a special frequency that isn't covered by Quad Band? Or is it that T-Mobile 3G has a special, non Quad Band frequency?
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there are two band sets for gsm phones, GPRS/EDGE and UMTS:3G/3G+/3.5G/HSDPA/HUDPA (sometimes these abbreviations are used individually to denote 3G service. This is not correct as they all mean a different type of 3G, the most generic term is UMTS).
Sometimes HTC phones have different band sets for different countries.
HTC HD7 Europe:
* HSPA/WCDMA: 900/2100 MHz
* GSM: 850/900/1800/1900 MHz
HTC HD7 T-mobile USA Version:
* UMTS 2100MHz AWS1700/2100MHz
* GSM/GPRS/EDGE 850/900/1800/1900MHz
For GSM there is no issue, 850 & 1900 are USA, 900 & 1900 are EU, but all the phones cover everything:
http://www.worldtimezone.com/gsm.html
In the USA, UMTS 3G for tmobile is on AWS 1700/2100 only
In the USA other providers use 850 with some using 1900
For example, the HTC Surround on AT&T uses:
* UMTS 2100/1900/850
* GSM GPRS EDGE 850/900/1800/1900
In conclusion:
1. Buying a tmobile HTC in the USA means you can only get 3G signal when using the tmobile network. When travelling abroad you might be able to use 3G, dependent on country.
2. Buying a AT&T HTC in the USA means you can only get 3G signal in the US when using the AT&T network but not on tmobile 3G. When travelling abroad you might be able to use 3G, dependent on country.
3. Buying an HTC HD7 from europe will be able to use neither the tmobile or AT&T network's 3G signal (as AWS 1700/2100mhz is different from normal 2100mhz)
Interestingly, what you may have noticed is that the 2100 3G band is common to all phones, this is also the most widely used 3G band in the world.
Therefore all these phones are fine with 3G everywhere in the world except the USA where the 2 leading GSM networks do not, for some reason, use the 2100mhz band as duplex *
* common question, how is UMTS 2100mhz different from UMTS AWS 2100mhz?
Simple, normal 3G UMTS 2100mhz is duplex (i.e. up and down link use the same frequency). In AWS, the up and downlink use different frequencies, AWS 1700/2100mhz means that tmobile uses 1710-1755 Mhz down & 2110-2155 MHz Up.
Only two networks in the world use AWS, tmobile in the USA and WIND in Canada.
in the rest of the world, where tmobile has a presense, it uses the "normal" 2100 3G band!

Wow, thanks very much colonel, that's an excellent explanation!!
So the T-Mobile HD7 is basically the Europe version with an additional radio (or whatever) to connect to the T-Mobile 3G network?

Jonno2343 said:
Wow, thanks very much colonel, that's an excellent explanation!!
So the T-Mobile HD7 is basically the Europe version with an additional radio (or whatever) to connect to the T-Mobile 3G network?
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it has AWS 1700/2100mhz instead of the EU 900mhz
it retains the normal 2100mhz, although this is useless in the USA
rgds

colonel said:
it has AWS 1700/2100mhz instead of the EU 900mhz
it retains the normal 2100mhz, although this is useless in the USA
rgds
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Excellent, thanks for the clarification!
It seems that in South Africa all 3G goes over the 2.1GHz frequency but some operators are starting with 900MHz so all will be fine.
Can't wait to get one now!

vikramdhani said:
Why do you want to spend so much of money and use it on edge only network ?
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Because its the carrier my work pays for Im mostly connected via Wi-Fi anyway.
T.J.

tissot201 said:
How did you get the unlock code so fast?
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http://www.HTCimeiUnlock.com/
Had the code in 10 minutes. Was $25 because of the new device I assume, they advertise 15.
T.J.