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Topaz does not work in US 3G network?

I got the Topaz from Europe, and I tried several ROMs but I just can't get it connected to the US 3G network. I heard the band is different, but is there any way that could possibly solve this problem?
Thanks so much in advance.

Also, is there a "2G" version of Topaz? If so, how can I tell if my phone is 3G or not?

No way to make it work, although if you are on att, you may get hsdpa in the few areas that actually have it. not sure what you mean by 2G, but it should connect to EDGE just fine

steamduck said:
Also, is there a "2G" version of Topaz? If so, how can I tell if my phone is 3G or not?
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Take a look a the band located in your phone's option section. 3G would work if UMTS is 850, 1900 coupled with WCDMA

Problem with 3G Services with Orange in Dominican Republic

HI my name is David and I bought a T-mobile My Touch 3G and this is what happend, I got this phone because i like it so much i previously had the G1, i got this new one because it works on 3G HDSPA 900mhz network and that is the Network 3G range of Orange Dominicana but i just got the Edge symbol its connected to the internet but through Edge it got the little "E" how can i fix this problem to have the 3g up and running on my phone its there any software or radio or spl or anything that can fix this please I want to know this because i've tried everything and the 3G on the phone doesnt work yet.
Best Regards,
David Peniche

penichej said:
HI my name is David and I bought a T-mobile My Touch 3G and this is what happend, I got this phone because i like it so much i previously had the G1, i got this new one because it works on 3G HDSPA 900mhz network and that is the Network 3G range of Orange Dominicana but i just got the Edge symbol its connected to the internet but through Edge it got the little "E" how can i fix this problem to have the 3g up and running on my phone its there any software or radio or spl or anything that can fix this please I want to know this because i've tried everything and the 3G on the phone doesnt work yet.
Best Regards,
David Peniche
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Have you checked in your settings? Is "always use 2G" unchecked?

ayush20m said:
Have you checked in your settings? Is "always use 2G" unchecked?
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Yes i've tried everything on this phone and still not working, i uncheked the option "Always use 2G network" and still i got the same problem.

Was that phone meant to be used with Orange? If it was not it could be possible that it's the same thing as when you use a T-Mobile phone on at&t or vise versa; you can’t connect to 3G because both companies have different frequencies.

cmarti said:
Was that phone meant to be used with Orange? If it was not it could be possible that it's the same thing as when you use a T-Mobile phone on at&t or vise versa; you can’t connect to 3G because both companies have different frequencies.
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OK I know that there's diference between those 2 companies T-Mobile and Orange Dominicana but the specification of the cellphone are:
General 2G Network GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 900 / 1700 / 2100
and the network frequency that Orange has for 3G HSDPA is 900MHZ and the cell phone should be up and running with the 3G maybe the T-Mobile has another frequency about its 3G network but this cellphone supports also 900MHZ HSDPA that is my frequency here in DR., so there's nothing to fix this problem??

3G Orange Dominican Republic
only htc europe works with 3g orange Dominican republic
tmovile have dif 3g band
sry it will no work :-(

T-mobile (USA) 3G

Hello, I am having trouble getting 3G working on my x10i. I have read through these forums and tried every apn settings I could find but still it only uses edge. T-mobile customer service tells me i have great 3g coverage in my area but that since its a non-tmobile phone it will not use 3G. Is this true or can anyone help? Right now im using epc.tmobile.com as my apn, data roaming on, and MMS & data turned on. Need more info just let me know.Thx for any help

check your sony ericsson xperia x10 box on the side, see if it said UMTS is saying "AWS1/AWS4/AWS8" if you are missing AWS4, then you will not be able to use T-mo USA 3G because T-mobile UMTS (3G) bandwidth frequency is 900 (AWS1) / 1700 (AWS4) / 2100 (AWS8)

i had a similar problem when my T-Mobile 3G constantly switched to Edge even when i had good coverage, i found this solution somewhere and it helped me, since then i was never dropped from 3G unless i had no bars... i would give this a try for your problem too.
1) enter in dialer the following: *#*#4636#*#*
2) select phone Information
3) press the menu button (left bottom hard key)
4) Select Radio Band
5) Select USA Band
6) Reboot Phone
This will narrow down your phone to USA 3G only, (if leaving the country you should switch back to automatic to get international 3G coverage), i found this also helpful for 3G speed and battery performance.

check your sony ericsson xperia x10 box on the side, see if it said UMTS is saying "AWS1/AWS4/AWS8" if you are missing AWS4, then you will not be able to use T-mo USA 3G because T-mobile UMTS (3G) bandwidth frequency is 900 (AWS1) / 1700 (AWS4) / 2100 (AWS8)
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Thx for your replies , yes it says "UMTS/HSPA band 1/4/8" So should be possible.

1) enter in dialer the following: *#*#4636#*#*
2) select phone Information
3) press the menu button (left bottom hard key)
4) Select Radio Band
5) Select USA Band
6) Reboot Phone
This will narrow down your phone to USA 3G only, (if leaving the country you should switch back to automatic to get international 3G coverage), i found this also helpful for 3G speed and battery performance.
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Click to collapse
thx for your reply, I tried this and i still see the E for edge. Could it have something to do with the fact that where i live is actually using a different tower than tmobile?

thx for your reply, I tried this and i still see the E for edge. Could it have something to do with the fact that where i live is actually using a different tower than tmobile?
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I doubt cause tmobile told you that your coverage is okay, it might be that you have an old sim card with no support for 3G, or Would say your phone is defective…
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Sent via the XDA Tapatalk App

try go to setting --->wireless controls --->Mobile Networks ----> Network mode
and select WCDMA only
see if it go back to 3G signal. For my area sometimes i stay on edge due to signal blocked by building walls....
by the way, will you get 3G signal when you are outside of your house or in a wide open area?

When i choose WCDMA i lose my cell signal completely. I have tmobile service but In my area it is always using centennial wireless towers for my signal, centennial was bought out by AT&T which have not yet switched their new towers to 3G yet. Could this be the problem? Thx

devilleather said:
When i choose WCDMA i lose my cell signal completely. I have tmobile service but In my area it is always using centennial wireless towers for my signal, centennial was bought out by AT&T which have not yet switched their new towers to 3G yet. Could this be the problem? Thx
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Sounds like you found the issue. If WCDMA only shows no signal at all, it means you do not have T-Mobile 3G in your area (I suspect the 1700 spectrum).
It looks like there is a roaming agreement in which T-mobile can "borrow" the AT&T tower. So, all you get is the GSM signal. Don't bother to wait for AT&T to get the tower to 3G...because, you know, it won't be the same 3G signal as T-mobile. AT&T operates 3G on 850 and 1900.
If that is the issue, maybe you have to switch to a X10a.

When i choose US band it says its unsuccessful? any ideas why???

Nexus S only shows 3G no H in Taiwan

On my news Nexus S I am only getting and showing 3G with poor connection whether I use Chung-Hwa Telecom or Taiwan's Far Eastone. On my HTC Desire when downloading or uploadinging it would show an "H" up on top and show "3G" if connection was not all that great but with this new Nexus S all I get is 3G. What's up with this? Reception is also worse than the HTC Desire.

Because nexus s only gets 3g
Sent from my Nexus S using XDA App

kjy112 said:
Because nexus s only gets 3g
Sent from my Nexus S using XDA App
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Here I see it showing it gets HSDPA.. From what I understand is the 2100 Band in Taiwan is not just 3G
http://www.gsmarena.com/compare.php3?idPhone1=3620&idPhone2=3077

It gets HSDPA also, it just doesn't change icons like cyanogen or like the static H on the G2. It wasn't a widely used icon in america until the networks (T-mobbile and AT&T) upgraded to HSDPA or HSPA+.
It is capable of 7.2mbps download.
You could always check the status of the phone under settings to see what connection you have or wait until cyanogenmod comes out for the nexus s, not just the alpha version.

ya HSPA is still 3G with a max download speed of 7.2 HSPA+ depending on device ranges from like 14.4 to 42

KnightMAREcrow said:
It gets HSDPA also, it just doesn't change icons like cyanogen or like the static H on the G2. It wasn't a widely used icon in america until the networks (T-mobbile and AT&T) upgraded to HSDPA or HSPA+.
It is capable of 7.2mbps download.
You could always check the status of the phone under settings to see what connection you have or wait until cyanogenmod comes out for the nexus s, not just the alpha version.
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Mobile Network Type
UMTS
Signal Strength
-101 dBm 4asu

Now answered in the stickied FAQ in the Q&A section.
unremarked said:
Q: The Nexus S only gets 3G? Omg, I only see a 3G icon!
The Nexus S gets UMTS and HSDPA, which are both technically 3G. Your phone idles on UMTS 3G, and when it starts downloading/uploading, it'll flip to HSDPA after a few moments. You can see this by typing *#*#4636#*#* into your Dialer, going to Phone Info, and looking at Network Type while downloading something. The ability to switch the icons on the notification bar is something that was added in custom ROMS, and is not supported by the stock ROM. Rest assured, if you are on a network that uses the 3G bands the Nexus S supports, then you are recieving HSDPA regardless of what icon you see.
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Click to collapse
EDIT: Also, in the future, use search and look at that FAQ prior to starting a new thread, mate. This has been asked a bajillion times.

unremarked said:
Now answered in the stickied FAQ in the Q&A section.
EDIT: Also, in the future, use search and look at that FAQ prior to starting a new thread, mate. This has been asked a bajillion times.
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Question,
I always wondered, never really bothered asking, what should the setting be "preferred network type" by default my NS shows GSM/CDMA auto (PRL)

slowz3r said:
Question,
I always wondered, never really bothered asking, what should the setting be "preferred network type" by default my NS shows GSM/CDMA auto (PRL)
Click to expand...
Click to collapse
Found this for ya:
loganss said:
WCDMA preferred - The GSM phone is capable of using both 2G and 3G data communication and when signal strength is low 3G is favored more.
GSM only - The GSM phone is capable of using only 2G data communication. When the 2G signal is too low you get nothing at all.
WCDMA only - The GSM phone is capable of using only 3G data communication. When the 3G signal is too low you get nothing at all.
GSM auto (PRL) - The GSM phone is capable of using both 2G and 3G data communication and when signal strength is low 2G is favored more. This one is a bit confusing to me since PRL is associated mostly with CDMA technology and not GSM technology.
CDMA auto (PRL) - The CDMA phone is capable of using both 2G and 3G data communication and when signal strength is low 2G is favored more.
CDMA only - The CDMA phone is capable of using only 2G data communication. When the 2G signal is too low you get nothing at all.
EvDo only - The CDMA phone is capable of using only 3G data communication. When the 3G signal is too low you get nothing at all.
GSM/CDMA auto (PRL) - Some phones are equipped with both GSM and CDMA capabilities. This setting appears to just have the phone attempt to stay connected to the data communication type that works the best. (Maybe the Samsung Galaxy S will take advantage of this???)
Unknown - If none of the above fit or the phone is acting weird as far as connecting to the carrier, you will see your preferred network type is set to this
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Click to collapse
Source: http://www.google.com/support/forum/p/android/thread?tid=6a327a95211ac789&hl=en

unremarked said:
Found this for ya:
Source: http://www.google.com/support/forum/p/android/thread?tid=6a327a95211ac789&hl=en
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Click to collapse
Still sorta understood all that, so should I just leave it where Im at, i mean it is what came with the phone stock after all

As was stated, when an active data connection is formed and there is activity then the status will change under settings. I have an attached screenshot for your viewing pleasure.

slowz3r said:
Still sorta understood all that, so should I just leave it where Im at, i mean it is what came with the phone stock after all
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PRL is preferred roaming list, iirc. When searching for a network, it'll get preference to those that are on the list over those that aren't. Supposed to be battery savings.

unremarked said:
PRL is preferred roaming list, iirc. When searching for a network, it'll get preference to those that are on the list over those that aren't. Supposed to be battery savings.
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fair enough

I'm noticing this too. I get full HSDPA in the US on AT&T, but when I came to Taiwan and plugged in my prepaid sim for Taiwan Mobile which clearly has 7.2mbps HSPDA in this city, I only get the "3G" icon.
I did do the *#*#INFO#*#* to set my band to Euro which was how data kicked in. But otherwise it only shows "3G." Readingt he posts above, people say it idles on UMTS, but I have AT&T at home and it always shows the H icon. I can never the the H icon in Taiwan.
I have the 9020a which has 850/1900/2100, so I'm not understanding whats going on... Is the lack of 900 3G band hurting me?
Edit: I've been using this phone for 7 months on AT&T now and I just arrived in Taiwan last night....

正常啊。在 系統設定 - 關於手機 - 狀態 裡，看到 行動網路類型，會顯示為 hsdpa。這就是3.5g h了。雖然訊號顯示為3g，實際在支援hsdpa的地方會使用hsdpa的。
我是大陸的，語言可能不太好理解，見諒。

[Q] How to turn on 3G?

i have choosen net work is GSM/WCDMA ( WCDMA preferred), untick use only 2G
full out APN, user name, password, but the symbol 3G not appear, just EDGE.
i'm using CM7 2.3
thank you guys.

The first thing I'd try is to change the baseband to Argentina\Claro -- it works better than the stock Bravo baseband in my experiences. Any of the 850/1900 basebands will work, but the Argentina one works best (for me, in Arkansas).
Then you can try to use WCDMA only -- tha (should) make use of the 1900mhz radio and has faster speeds -- but you can get crappy coverage when you're far from towers. I don't think you'll ever see 3g in the status bar (I never have, always been H+ or similar, better than 3g btw).
Unless you're on some weird ass carrier, you shouldn't have to mess with APN settings.
I think its the baseband. I sometimes use a baseband with edge only; a baseband with 850mhz and anything other than 1900 -- helpful at the end of the month when you're near the limit of your 3g data usage...USA T-Mobile for me.
The Bravo only supports 850/1900 basebands even though all the websites say its a Quad Band device (like the Defy). That's why that T-Mobile baseband (850\1700\2100) is a neat little trick to save from hitting overage charges . Edge is only on 850 in my experience which is why I'm thinking baseband.

if i stick the WCDMA only, there is no signal on my phone.
thank you. That's ok with EDGE.

kevins547 said:
if i stick the WCDMA only, there is no signal on my phone.
thank you. That's ok with EDGE.
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Have you tried reflashing?