GSM from Tri-band to Quad-band, - Touch Dual, MDA Touch Plus General

Hi, can I change touch dual the GSM from Tri-band to Quad-band,
for the better reception in USA.
I know the touch can do that, Thank

Now that its going to be available in the US with quad band, does it mean tri band niki can be changed to quad band?

shupacanucks said:
Now that its going to be available in the US with quad band, does it mean tri band niki can be changed to quad band?
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Click to collapse
I would like to know this too

It could be possible, but the RF chipset could be totally different on the two models.
There wouldn't be much of a reason for HTC to restrict the current tri band duals with the way the various operators have deals with other overseas operators.

clonmult said:
It could be possible, but the RF chipset could be totally different on the two models.
There wouldn't be much of a reason for HTC to restrict the current tri band duals with the way the various operators have deals with other overseas operators.
Click to expand...
Click to collapse
You would think they would have designed, developed the radio chip long ago, and the new edition would only contain software changes to the OS, and Hardware soft updates

--bump--
I too would like to know if this is possible. The best buy website has a touch dual listed with 850. I called their customer support and they couldn't give me any information on release date or even a model number. Will the US version of the dual have 850? I want to know if I can get this $500 phone to work here (area code 318 with ATT) on just the 1900 band or do I need the 850 band for better reception. Any advice would be helpful. Thanks in advance.
b

Any luck? I would like to upgrade to the quad band

theres only one version of the dual that is quad band and that is the US version being sold by BEST BUY.

Thanks for the reply I figured I was out of luck, so I ordered the us version yesterday.
Bought the triband Dual but, soon figured out that it doesnt work well in the states.
I thought I would give it a go.
Thanks

Was working on 850MHZ than....
My HTC touch was working on 850 MHZ than I had a tech at my provider's, setting up my internet.
Since that moment it does not work anymore:
Getting the signal but not able to make calls or receive calls.
The guy tried to fix it. It worked for a couple of calls and than stopped working.
Back to the tech, he told me it s because of the 850mhz on which they operate.
He said that even if it was working fine, it wasn't meant for their network (850 MHZ).
Should I believe him?
(the phone works fine with 1900MHZ band from another company)
How can I fix this?

wish there was a radio upgrade like the latest for the diamond that enabled the 850 band

Related

Can it be used worldwide?

Hi!Can i use an unlocked hermes,(apart from the tytn),in any country round the world?Anybody tried doing so??Thanks!
No mobile works in every country around the world.
I think that answer is a bit terse. A quad-band phone like the Hermes can be used in virtually any country. Take a look here, and you'll see that with the 850, 900, 1800 & 1900 MHz bands covered there's not many countries you can't get a signal in.
http://www.coveragemaps.com/gsmposter_freqbands.htm
I'm not familiar with Japanese requirements, but while it stands out as having a different set of requirements, I'm reasonably sure the Hermes works there too.
Testing it out in every single country could be a bit of a large proposition though.
totallytechie said:
I think that answer is a bit terse. A quad-band phone like the Hermes can be used in virtually any country. Take a look here, and you'll see that with the 850, 900, 1800 & 1900 MHz bands covered there's not many countries you can't get a signal in.
http://www.coveragemaps.com/gsmposter_freqbands.htm
I'm not familiar with Japanese requirements, but while it stands out as having a different set of requirements, I'm reasonably sure the Hermes works there too.
Testing it out in every single country could be a bit of a large proposition though.
Click to expand...
Click to collapse
So add the countries with 850/1900/2100 UMTS to the GSM list, and you'll have a comprehensive list... and yes, Japan uses 2100 UMTS, so you can add that one, too.
That just leaves the wierd 1700 spectrum .. wonder if any country is running that ..
gravejoker said:
That just leaves the wierd 1700 spectrum .. wonder if any country is running that ..
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Click to collapse
Not yet and probably not for a few years...
So in short,if i unlock the device,i may be able to use its phone capabilities on any carrier in the whole world,provided the carrier uses one of the 4 bands for communicating.The carrier may be anyone apart from the tmobile,o2,orange,cingular,vodafone?!
Yes ... you can use an unlocked TyTN on any carrier in the world that has one of the 7 bands that TyTN supports (4 GSM + 3 UMTS) ..
Ok thanks...the reason behind that question is that i'm going to Mauritius(a lost island situated in the indian ocean, beside reunion island) for a few weeks..And i wanted to be sure that my unlocked m3100 would work perfectly there...Anyway, thanks for ypur kind support..
Ahha .. Mauritius .. You are lucky my friend .. what a beautiful place from what I have heard .. enjoy your trip ..
Thanks,mauritius,the paradise on earth,here i come!
Thanks,mauritius,the paradise on earth,here i come!
gravejoker said:
That just leaves the wierd 1700 spectrum .. wonder if any country is running that ..
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Click to collapse
goestoeleven said:
Not yet and probably not for a few years...
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Click to collapse
Update: At the end of Nov 2006 T-Mobile won FCC auctions in 120 US markets for spectrum licenses in the 2100 and 1700 frequency bands. It is reported they will start rolling out service during 2007 (Sources: T-Mobile US Press Releases and Wikipedia). So the answer now appears to be, yes, the 1700 spectrum will be used extensively by T-Mobile USA.
I am not personally aware of any HTC phones which support 1700 yet. I am no engineer, but my assumption is that this could not be done through software upgrades on any existing devices. I imagine it will require different radio hardware. Clarification from the experts on this forum would be much appreciated.
Just a note of caution I've tried to use an unlocked VPA compact III in Barbados on the Bmobile network, but I can't geta signal. If I use a vodafone card I manage to get a signal, so I'm not sure all carriers support this phone.
flamingcrumb said:
I am not personally aware of any HTC phones which support 1700 yet. I am no engineer, but my assumption is that this could not be done through software upgrades on any existing devices. I imagine it will require different radio hardware. Clarification from the experts on this forum would be much appreciated.
Click to expand...
Click to collapse
Yes, a software upgrade cannot physically synthesize circuitry to support the 1700Mhz frequency channel.
Looking at the hermes architecture, their LNA's have just enough frequency coverage to support the 7 bands. So the answer is a concrete no in re: 1700MHz.
It is possible to deisgn an LNA with a larger bandwidth, for example, to cover frequencies from 1500MHZ to 2300MHZ configurable via MEMS capacitors and inductors (I have a PhD student working on this atm, but he is facing the problem of keeping up the gain as well as linearity of the amplifier). Motivation for this: the fewer LNA's the less power a device will consuming yielding greater battery life.
HTC maybe should think about hardware re-configurability as well, but then again, they would like to make their devices obselete ASAP.
NO, you cannot use it worldwide
I could not receive a signal in Brazil with my 8525. Others reported the same problem with the Samsung Blackjack. Cingular has not provided a solution to our problem.
I hope the band select hack that I found on this great XDA forum will let me use my unlocked 8525 in Brazil next time I go in March.
Australia, if I recall, was also a problem for a Blackjack user. See the Blackjack thread on the Cingular forum for details on our tribulations.
Rgds
Ben
I have used my TyTN in the USA, Japan, Taiwan, Thailand, Cambodia, Singapore, Philippines and Hong Kong all with no problems. All locations outside the USA were with pre-paid local SIM cards (except Japan and Taiwan, which were roaming on Cingular).
Are the people having problems using a Cingular SIM (and roaming), or using a local pre-paid card?
I got full coverage in the Geylang District in Singapore. full bars.
Am I right to understand that an 8525 purchased from Cingular is locked to Cingular and in order to use in another country it would need to be unlocked prior to inserting another sim card? Would I simply ask Cingular to provide the unlock code for such use?
I'm having a Problem using a local pre-paid SIM card in Barbados, if I Roam on Vodafone which is my original carrier then it's no problem at all

Topaz for US UMTS Band? - Might not happen (see post #11)

Is Topaz is available for sale for US UMTS bands? In all the online shops i see this phone only with UMTS 900 and 2100. I am planning to buy one but i dont see one with UMTS 850 and 1900.
I'm still waiting for 850mhz. It clearly isn't out yet.
3G for AT&T US?
Does anyone have any info on whether and if yes, when, the Topaz will be offered with the US 3G bands??
I'm Not sure which bands AT&T uses seeing I'm with T-mobile but here are the bands the phone has.
GSM(900+1800)+UMTS(900+2100)
GSM(1900+850)+UMTS(1900+850)
UMTS(2100+800)
3G on T-mobile does not work but I don't mind because Edge is fast enough for me. I had faster loading times on Webpages yesterday than my freind with a touch pro on Sprint's 3G. So ya. I don't know anyone with AT&T or else I'd throw the SIM in and try it.
HTC Touch Freak said:
I'm Not sure which bands AT&T uses seeing I'm with T-mobile but here are the bands the phone has.
GSM(900+1800)+UMTS(900+2100)
GSM(1900+850)+UMTS(1900+850)
UMTS(2100+800)
3G on T-mobile does not work but I don't mind because Edge is fast enough for me. I had faster loading times on Webpages yesterday than my freind with a touch pro on Sprint's 3G. So ya. I don't know anyone with AT&T or else I'd throw the SIM in and try it.
Click to expand...
Click to collapse
If that is correct -----the UMTS 1900+850 part----- then those are the AT&T 3G frequencies. Where did you see those bands?
mush10 said:
If that is correct -----the UMTS 1900+850 part----- then those are the AT&T 3G frequencies. Where did you see those bands?
Click to expand...
Click to collapse
If you go to Settings/All Settings/Personal/Phone/Click on the Band Tab it is under the Selet your GSM/UMTS band.
If I go to the mall today I will stop by the AT&T store and see if someone there is willing to insert their SIM in it to see if it gets 3G. If so I will post up.
HTC Touch Freak said:
If you go to Settings/All Settings/Personal/Phone/Click on the Band Tab it is under the Selet your GSM/UMTS band.
If I go to the mall today I will stop by the AT&T store and see if someone there is willing to insert their SIM in it to see if it gets 3G. If so I will post up.
Click to expand...
Click to collapse
That is great!! If you can check and let us know that would be a great help!!
Is UMTS band availability is all software/firmware related.. i thought thats hardware.
having those band settings does not mean it will work on US 3G networks. for example, the UK Touch HD (from the UK) has the same band listings as above but the radio doesn't support at&t's 3G bands (850/1900). it will work for voice and EDGE internet speeds without issue. it's a hardare limitation. 3 months after releasing the UK HD, HTC released a Telstra (Australia) version of the Touch HD that had the same band listings (as above) that works with 850 3G bands. Since Telstra uses the same 850 3G band that at&t uses, the Telstra HD can access at&t's 3G network. i'm speaking from fact because i have both the UK and Telstra HD versions.
HTC is known for relasing the same device with radio limitations: they did it with the Diamond, Touch Pro, Touch HD and they're doing it for the Diamond 2. if you want US 3G access - via at&t - on the Diamond 2 you'll have to wait until HTC releases the US 3G version.
cortez.i said:
having those band settings does not mean it will work on US 3G networks. for example, the UK Touch HD (from the UK) has the same band listings as above but the radio doesn't support at&t's 3G bands (850/1900). it will work for voice and EDGE internet speeds without issue. it's a hardare limitation. 3 months after releasing the UK HD, HTC released a Telstra (Australia) version of the Touch HD that had the same band listings (as above) that works with 850 3G bands. Since Telstra uses the same 850 3G band that at&t uses, the Telstra HD can access at&t's 3G network. i'm speaking from fact because i have both the UK and Telstra HD versions.
HTC is known for relasing the same device with radio limitations: they did it with the Diamond, Touch Pro, Touch HD and they're doing it for the Diamond 2. if you want US 3G access - via at&t - on the Diamond 2 you'll have to wait until HTC releases the US 3G version.
Click to expand...
Click to collapse
This clarifies. Thanks friend. Do you aware of any news on when HTC might release the D2 for US?
verified today.... does not work on at&t. the guys at the store said that it is 1900/900 band not 850. 850od the 2g frequency. havnt checked on how correct they are on this but a quick google search will verify the frequencies.
A reply from HTC
See the reply from them below. HTC did not mention about any carrier like ATT or T-Mobile asked for this phone.. looks like this phone will never make it to US? That is a Bad news......
From: Jonathan [mailto:[email protected]]
Sent: Wednesday, May 06, 2009 12:54 AM
To: Natarajan, Sundaram
Subject: Re: HTC Diamond 2 <<#15569-73859#>>
Hello Sundaram,
Thank you for your inquiry about the Touch Diamond 2.
We appreciate your inquiry about one of our new phones. Unfortunately, we do not remake our phones to work on a specific network, such as the AT&T 1900 band width, unless that carrier request us to make them that exact phone. If you do buy the Touch Diamond 2, we cannot guarantee 3G service since AT&T 3G band is 1900 while the Touch Diamond 2's 3G band is 2100.
I hope we have answered your question in detail. Feel free to contact us again if you have any further questions.
Thanks for contacting HTC,
HTC Technical Support
http://www.htc.com
http://www.htcwiki.com
--- Original Message ---
From: "Natarajan, Sundaram"
Received: 5/5/09 11:17:17 PM EDT
To: <[email protected]>
Subject: HTC Diamond2
Dear Sir/Madam,
I own a HTC TyTn II and HTC Fuze (ATT) and now planning to upgrade my smart phone to HTC Diamond 2. I am really impressed with this phone and ready to purchase one. I live in USA and have a question about the 3G band availability of HTC Diamond 2. The phone is available in many online stores but they all have a specification like below.
Operating Frequency:
HSDPA/WCDMA: Europe/Asia: 900/2100 MHz
Does this mean that I cannot use this phone for ATT 3G networks in USA? Does HTC manufacture HTC Diamond 2 for US 3G band which I believe are 850/1900 MHz?
Is there any planned date of releasing HTC Diamond2 for ATT 3G networks? I appreciate your response.
Thanks
The Diamond 2 IS COMING TO THE US WITH 3G SUPPORT in a few months. Stop this nonsense please.
MAK11 said:
The Diamond 2 IS COMING TO THE US WITH 3G SUPPORT in a few months. Stop this nonsense please.
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Click to collapse
What makes you to visit this topic and through a comment like this? I was not asking "you" this.
Besides, I am not working at ATT or HTC but trying to see if any other member of this forum has any news about this. If you dont like this topic just dont visit it and try to change your attitude. Otherwise you will become a great looser (i guess you already are).
MAK11 said:
The Diamond 2 IS COMING TO THE US WITH 3G SUPPORT in a few months. Stop this nonsense please.
Click to expand...
Click to collapse
Clearly that is a pretty general statement that I believe most of us find to be true. That being said, do you have any more insight?
If it's coming to the US with 3G I would just assume that it would hit Sprint first so still no luck for AT&T. Didn't ATT just get the FUZE in like Dec? Anyways the phone most likely to hit US carriers is The Pro2. Americans generaly (IMO) like a full Hard qwerty keyboard.
This was floating around a few months ago
http://www.wmexperts.com/htcs-entire-2009-lineup-leaked
Shows the topaz going to AT&T. I'm not sure how valid it is though, but it's something to cling to
Even if it does come to AT&T, I hope we see the unlocked version well before. HTC used to be the one company we could count on to deliver US 3G on newer releases. Now we seem to be stuck playing the waiting game. The odd thing is they released the TYTN and such when the 3G network was barely rolled out, now that it at least covers all major cities, we cannot get any love.
I have been waiting a long time for this
Word is "HTC Topaz 210" (AT&T warhawk) will be released next month /(october) with the 850mHz UMTS "7201" chip (instead of the "7200" 900/2100 UMTS chip)
It will also be slightly smaller (1 mm less longer and wider)
I may drop around here if HTC beats the drum with this one
PS: sorry for resurrecting an ole thread, but we american users really miss good HTC 850mHz phones
I too am waiting for the US version of D2. gtrab, where did yo uget the info that US D2 will be slightly smaller. The latest info was from BG but I don't remember him mentioning any other spec except the obvious 850/1900 implementation.

HTC HD2 3G Not Detected!!!!!

Hello if someone could help me with my 3G connection inquiry, I would greatly appreciate it.
I bought this phone unlocked from Hong Kong and brought it back to Canada. But the 3G connection through Rogers won't work. I am able to connect to edge (When i pop in my sisters sim card which has a data plan, as my sim card currently does not have a data plan).
I talked to Rogers and they said that everything is compatable (After mentioning the phone frequencies and speed capabilities) and that the only reason 3G isnt working is that I have not configured my phone properly for 3G and at this moment it is configured for 2G (Edge).
I then contacted HTC and they said the reason was because "for the Rogers network, their 3G signal is operated on the 850/1900 MHZ band and the Touch HD2 operates on the 900/2100 MHZ band." Could this be the reason? Will i never taste the pleasures of a 3G connection?
PLEASE HELP!!
since you have bought it in hongkong most probably you have the asian version. It comes with 900/2100 MHZ bands and as you mentioned ROger needs 850/1900 frequency.
You could also get Telstra version from Australia and unlock it as it has 850/1900 frquency so that you could get 3g. But not possible on the one you already have.
Yea its the frequencies. When I take my phones abroad, I always check what frequencies the country has. If the frequencies don't match, the phone won't work in terms of placing calls, 3G etc.
is there a way to unlock ?
meow914 said:
is there a way to unlock ?
Click to expand...
Click to collapse
There is no software that can get around this "problem"
It is purely a hardware limitation.
perhaps with flashing radio but i'm not shure
[email protected] said:
perhaps with flashing radio but i'm not shure
Click to expand...
Click to collapse
Nope, it still will not support the correct bands that he needs
This is a completely hardware related problem
simple solution....
simple solution...sell it or trade it fot the right one

3G international compatibility

Hi there guys! Now that the phones are finally shipping, can anyone please test the real band compatibility? I want to buy an unlocked G2 and use it here in Italy, but only if I can get at least a fully working 3G connection.
Please fellas, I badly need this info..
Thanks
Neuromansa said:
Hi there guys! Now that the phones are finally shipping, can anyone please test the real band compatibility? I want to buy an unlocked G2 and use it here in Italy, but only if I can get at least a fully working 3G connection.
Please fellas, I badly need this info..
Thanks
Click to expand...
Click to collapse
No such luck chief. The only 3G band on the G2 is AWS. It will only work on carriers like T-Mobile (USA), and Wind (Canada).
The stock Desire Z, however, has HSDPA 900 / 2100 and should work in most non-US countries on 3G, but check your carriers bands first. The downside, Desire Z has 1.5 GB storage, the G2 has 4 GB.
Neuromansa said:
Hi there guys! Now that the phones are finally shipping, can anyone please test the real band compatibility? I want to buy an unlocked G2 and use it here in Italy, but only if I can get at least a fully working 3G connection.
Please fellas, I badly need this info..
Thanks
Click to expand...
Click to collapse
Unfortunately I think you are going to be disappointed. I posted a buzz about this a while back. You can look at page 3 of the test report in the FCC submission. The nutshell summary is that the device will only support Band IV for 3G, or in other words T-Mo US' UMTS 1700. This is unfortunate since I used my unlocked G1 quite a lot overseas, thanks to its UMTS 900/2100.
You'll probably have to go with a Desire Z if you want this device with European radios.
Can't believe it's for real...I mean, the 2-year-old G1 does that...and what about people working overseas?
That's a MAJOR fault from T-Mobile, and it's totally weird to say the least.
Neuromansa said:
and what about people working overseas?
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Click to collapse
Perhaps tmo figures that frequent int'l travelers are a small enough percentage of their userbase that omitting the Band I poweramp was worth the cost savings?
Oh, it gets better. I only paid attention to the UMTS bands when I read the report, assuming that any modern smartphone would be a quad-band GSM device. Turns out the G2 is only GSM 850/1900, which means this device is truly unusable in Europe and Asia.
Wait a minute, what GSM bands are used in Asia?
The HTC site says otherwise : http://www.htc.com/us/products/t-mobile-g2#tech-specs
According to T-Mobile and HTC sites specs, the phone is GSM quad band (850, 900, 1800, 1900).
The HTC site says "UMTS: Yes"
Superfrag said:
Wait a minute, what GSM bands are used in Asia?
The HTC site says otherwise : http://www.htc.com/us/products/t-mobile-g2#tech-specs
Click to expand...
Click to collapse
Europe and Asia are GSM 900/1800, generally. What is interesting is that the HTC page claims the G2 is quadband, but the FCC testing documents don't show any 900/1800 data at all. The phone cannot legally operate in the U.S. in that band unless testing data has been submitted to the FCC. I'm wondering if HTC marketing just c&p from the Desire Z specs and forgot to edit the GSM infos. We'll see soon enough I suppose.
it doesn't make sense why they would release a phone that wasnt quad band. it must be a mistake. it is like power seats on a luxury car. it's just there lol.
So a unlocked G2 could be used on WINDs network here in Canada (because they use the same frequency), can some one confirm this please
PremiumReview said:
So a unlocked G2 could be used on WINDs network here in Canada (because they use the same frequency), can some one confirm this please
Click to expand...
Click to collapse
Wind uses AWS (UMTS Band IV)... So, yes. But if they do not have HSPA+ enhancements you won't get the famed and promised super speed. The phone should be able to be used on USA (T-Mobile, Cincinnati Bell Wireless), Canada (WIND Mobile, Mobilicity, Videotron)
Based on the G1 test reports...
... the bands listed in the FCC test reports are not at all definitive.
I pulled the FCC exhibits for the G1 and they listed:
GSM 850
GSM 1900
WCDMA Band IV
(plus 802.11 etc)
In other words, no Band I.
However, I've been successfully using my G1 on 3G in both Europe and Asia for over a year now, so it actually has Band I.
I suspect the FCC tests only cover the frequencies that the device is going to be used on *in the US*. Frequencies the device may or may not be capable of using outside the US just aren't relevant.
That being said, the more significant detail is that the T-mobile site lists the G2 as only having Band IV, even though it lists the Vibrant as having Bands I and IV. Looking at other phones, it seems that T-mobile isn't terribly consistent in how they list their frequencies, but that's a (relatively) slim thread to hang onto.
crr127 said:
it doesn't make sense why they would release a phone that wasnt quad band. it must be a mistake. it is like power seats on a luxury car. it's just there lol.
Click to expand...
Click to collapse
It is quad-band -- for GSM -- as all (most?) modern non-CDMA phones (and some of those) are. But the OP question is about 3G.
ravi_n said:
I suspect the FCC tests only cover the frequencies that the device is going to be used on *in the US*. Frequencies the device may or may not be capable of using outside the US just aren't relevant.
Click to expand...
Click to collapse
Good sleuthing. I didn't consider this possibility.
That being said, the more significant detail is that the T-mobile site lists the G2 as only having Band IV, even though it lists the Vibrant as having Bands I and IV. Looking at other phones, it seems that T-mobile isn't terribly consistent in how they list their frequencies, but that's a (relatively) slim thread to hang onto.
Click to expand...
Click to collapse
I wouldn't put it past T-mo to have just messed up the detail.
I suppose the easiest way to determine would be for someone with an unlocked G2 (or even a locked unit) to take it to Europe or Asia and see if the system status shows UMTS signal or not.
Unlocked G2 Australian user
Hey Guys,
I actually received my G2 a few days ago. Yesterday i purchased an unlock code and entered this in to the phone which it advised was accepted.
The device then rebooted, however once the system loaded i noticed my signal bar had an "x" through it.
Browsed to Network Operators and tried selecting to search for networks and also to select automatically. Both of these selections returned an error "error searching for network" or every second try it would say "unable to connect to network".
I tried a factory reset of my phone but still the same issue.
I tried dialing *#*#4636#*#* which opens a testing screen. I noticed on this screen i can see i have a signal of -85 dBm which is similar to on my galaxy s.
Tried playing with the settings on this screen, i had the option to select network band to which i alternated between all options including auto and AUS, AUS2.
I can confirm this is a Vodafone simcard and it works perfectly in other phones.
I tried a Telstra, 3 and a friends Vodafone simacard all of which produced the same error.
I noticed there are several Australian sites selling unlocked Tmobile G2's.
At this point i would like to try flashing the stock rom on again however i am not sure on the button combo to access the recovery screen.
Last thing to note is yes i have spoke with Vodafone, HTC AU and HTC US, none of the techs were able to help me. =(
TheRiceKing said:
I tried dialing *#*#4636#*#* which opens a testing screen. I noticed on this screen i can see i have a signal of -85 dBm which is similar to on my galaxy s.
Click to expand...
Click to collapse
What was the network type when you saw the -85 dBm signal?
jashsu said:
What was the network type when you saw the -85 dBm signal?
Click to expand...
Click to collapse
Just checked right now and it says,
Signal stregth -91dBm 11 asu
Under Network Type it says unkown CID is also unkown.
Would a G2 work on Softbank (Japanese Carrier) They use the 2100 band IV I believe. I know my T-Mobile Nexus One worked fine on there 3G.
I could care less if the HSPA+ worked just 3G would be fine.
Okawa said:
Would a G2 work on Softbank (Japanese Carrier) They use the 2100 band IV I believe. I know my T-Mobile Nexus One worked fine on there 3G.
I could care less if the HSPA+ worked just 3G would be fine.
Click to expand...
Click to collapse
Band IV is commonly referred to as AWS 1700. From the gsmworld entry, it looks like Softbank is running on Band I ("UMTS 2100"). The G1 and Nexus One both had UMTS 900 & UMTS 2100 (the global bands) in addition to T-Mo specific AWS 1700. We're trying to determine if the G2 also has 900&2100 radios, but right now it's not looking very good.

US T-Mobile's 3G freq vs the rest of the world?

Anyone getting the T-Mobile version tomorrow? With CDMA not SIM capable, and AT&T version still up in the air, I think I'm probably going to get one tomorrow!
I've got question regarding T-Mobile's werid 3G band tho. I think Samsung listed T-Mobile's version as AWS 1700/2100. I know 1700 is weird, but is that AWS 2100 same as the 2100 band that the rest of the world use? Sorry it's my first 3G T-mobile device, and looking on wiki or google is just kinda vague
2100MHz is the band used all across Europe as well as large parts of Asia.
So, yes, the T-Mobile one should give you 3G capability in other parts of the world, though if it's locked that may open up other issues.
Step666 said:
2100MHz is the band used all across Europe as well as large parts of Asia.
So, yes, the T-Mobile one should give you 3G capability in other parts of the world, though if it's locked that may open up other issues.
Click to expand...
Click to collapse
I had a TMo US G1, and it worked fine on 3G when I returned to the UK. The converse was not true of my TMo UK G2 (HTC Hero), which would only get Edge in the US because it did not support both bands of AWS (1700/2100).
So, I see no reason why a TMo US shouldn't work pretty much everywhere else in the world where 2100 3G is ubiquitous.
Regards,
Dave
Cool thanks, i guess that AWS threw me off. I thought there were a regular 2100, and then T-Mobile's AWS 2100
Step666 said:
2100MHz is the band used all across Europe as well as large parts of Asia.
So, yes, the T-Mobile one should give you 3G capability in other parts of the world, though if it's locked that may open up other issues.
Click to expand...
Click to collapse
Actually you're a bit off. Tmo's 3G runs on AWS 1700/2100 band which is not the same 2100 *frequency* as the rest of the world. Tmo uses 1700 for downloads and 2100 for uploads, so both bands (aws/band IV) are needed.
Now Europe (and rest of GSM world) use straight 2100 band for 3G but the exact frequency is not the same as Tmo's.
Basically a Tmo Galaxy Tab will only get you EDGE outside of the US. An ATT Galaxy Tab will get you 3G in the US and the rest of the world (as long as it's sim unlocked, ofcourse).
LordLugard said:
Basically a Tmo Galaxy Tab will only get you EDGE outside of the US. An ATT Galaxy Tab will get you 3G in the US and the rest of the world (as long as it's sim unlocked, ofcourse).
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No, the T-mobile phones give you also 3G in Europe. All AWS chipsets do both Band I (2100) and Band IV (AWS 1700/2100).
I thought the galaxy tab is quad band, so you can simply swap your sim card with another european carrier and it should work on thier frequency
Am I wrong?
ahbvrh said:
I thought the galaxy tab is quad band, so you can simply swap your sim card with another european carrier and it should work on thier frequency
Am I wrong?
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You're right for 2G, not for 3G
So getting the unlock code for tmobile device and putting AT&T sim card will not give me 3g connectivity (using AT&T network)?
ahbvrh said:
So getting the unlock code for tmobile device and putting AT&T sim card will not give me 3g connectivity (using AT&T network)?
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No, because it doesn't support the 850 or 1900 MHz bands.
Volker1 said:
No, the T-mobile phones give you also 3G in Europe. All AWS chipsets do both Band I (2100) and Band IV (AWS 1700/2100).
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It will not. Pls do some more reading on the subject. There's a very good writeup on it in these forum. Someone explained it better than I've probably done. If I find it I'll link to it.
LordLugard said:
It will not. Pls do some more reading on the subject.
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One could say the same to you.
This is a link to T-Mobile US's support forum, in which someone has had it confirmed from T-Mobile themselves that all devices designed for their network have to be fully compatible with the 2100MHz band, meaning they will give you 3G capabilities in Europe.
Your previous post in which you claim that the 2100MHz band that T-Mobile use is not the same as the 2100MHz band the rest of the world uses is nothing short of ridiculous.
If the band T-Mobile used was different to the one used in the rest of the world, it would not be described as 2100MHz.
LordLugard said:
It will not. Pls do some more reading on the subject. There's a very good writeup on it in these forum. Someone explained it better than I've probably done. If I find it I'll link to it.
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Sorry, but as I already said earlier in this thread, my T-Mobile US G1, which is an AWS device, worked perfectly well in the UK with full 3G. Similarly, I know of people who bought TMo Nexus Ones in the US, and these all worked fine in the UK.
That's not to say there isn't some subtle difference which not all chipsets can cater for, but it is certainly true that many TMo US handsets will give 3G capabilities in Europe.
Regards,
Dave
The normal UMTS 2100 is called "Band I" and t-mobile's AWS is called "Band IV":
http://en.wikipedia.org/wiki/UMTS_frequency_bands
The AWS 3G module has already 2100MHz support, so there is no additional hardware necessary to support Band I as well. Theoretically it could be disabled, of course, but then T-mobile wouldn't be able to charge you an arm and a leg if you were to roam outside of the US

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