Well, it's just as the title of this thread says... I have a Tmobile's G2 (A.K.A. HTC Vision), which its 3g default bands are under 1700 / 2100. Here on my country, all the providers have their 3g services on 900 / 2100.... soo... Is it possible to Flash T-mobile G2's Radio, an set it to work on 3g 900/2100 mhz, so I can use the phone on 3G, instead of that annoying and extremely slow EDGE??
Or, is there a Custom ROM that has these settings on it? (I mean, a rom that automatically turns the 3g band to 900 instead of 1700)
Thanx.
No you can't, the radio bands are set in hardware (e.g. the physical antennae in the phone), not just in the radio software.
Why would you need to, the phone would use the 2100 band for it's 3G in your country? I took mine to Russia and it worked fine.
I don't think it's that simple. I only get edge on my T-mobile G2 using the Rogers network.
Sent from my HTC Vision using XDA app.
Rogers doesnt use 1700 or 2100 so that is to be expected. The original posters country has a 2100 3G, I would suspect he just isn't in a coverage area.
Circledog said:
Why would you need to, the phone would use the 2100 band for it's 3G in your country? I took mine to Russia and it worked fine.
Click to expand...
Click to collapse
I don't think it works like that, I think it needs both bands to work. If it was that simple then surely they wouldn't bother making different phones for different markets (e.g. T-Mobile US vs Europe/Asia)
That may be...I'm only speaking of my experience in Russia, they have 2100 only 3G and mine worked without the second band.
Just to add, T-Mobile US use the 1700 MHz band for the uplink, and 2100 MHz for the downlink. So presumably the phones (i.e. G2, as opposed to the Desire Z) are physically setup like that too.
Oh I thought Rogers uses 2100. Either way, no worky.... sad.
Sent from my HTC Vision using XDA app.
Ah, I think I'm following you, because Russia exclusively uses 2100 for up and down my phone worked, but since his county has a seperate uplink and a downlink band it won't?
Circledog said:
Ah, I think I'm following you, because Russia exclusively uses 2100 for up and down my phone worked, but since his county has a seperate uplink and a downlink band it won't?
Click to expand...
Click to collapse
Yeah I think that's it. I don't know *that* much about this myself, just picked up on a few discussions about the G2/DZ on here over time.
Have a look at this - http://en.wikipedia.org/wiki/UMTS_frequency_bands
I think the "problem" is that the G2 uses exclusively "Band IV" for 3G (i.e. 1700/2100 split), but somewhere like the OP's Dominican Republic uses Band VIII (900).
What the OP needs is a Desire Z, which operates on Band I (2100) and Band VIII (900).
Russia appears to use Band I (2100) as well. Maybe a G2 can partially work there then ?
Rogers uses something else, Band II (1900) and Band V (850).
As I say, I'm don't know that much about this myself, so if anyone else can help clarify/confirm/deny, then that'd be great.
Much appreciated.
Sent from my HTC Vision using XDA app.
Via Google, I dug up another interesting piece of info.
Although it's not on HTC's official spec list on their site, on T-Mobile's support pages it says that the G2 does Band I as well. Which would explain how it would have worked in Russia. That's not going to help the OP's problem though.
http://support.t-mobile.com/doc/tm24233.xml?&A2L.SERVICE=FeatureSummary
Wow mega confusing, but you helped clear it up, thanks!!
Mine worked very well in Moscow, I was pleasantly suprised, it was kind of a bonus to be able to get on the web, I wasn't expecting much.
I don't understand why the manufactures don't provide phones with penta-band 3G support like the Nokia N8. Maximize profit when producing 2-3 same phones with different frequencies maybe? I mean quad-band GSM has been supported for pretty much all of the current phones, why not 3G bands as well?
Has anyone tried this option?
bring up the dial pad and dial
*#*#info#*#* (aka *#*#4636#*#*)
press "Phone Info"
you'll get the screen with the imei, phone no, network and a button that says "Run Ping Test" at the top
press your "menu" button
when the menu pops up, it'll have 6 options, select radio band, view sim address book, view fixed dialling numbers, view service dialling numbers, get PDP list, and More.
Choose the first one "Select Radio Band" then select the appropriate band.
Not sure if it helps in this situation, but I found it in a thread about gaining 3G in Europe on the N1
hey bro.. I read from one topic in TMo's official G2 forum that the G2 will work on a country with only a UMTS band of 2100 both for up and down (the answer is from TMo employee, an engineer)... hope you'll be enlightened. I bought an unlocked G2 and I researched extensively before purchase. Im from the Philippines which only supports the 2100 band for 3G. I Know and Im 100% positive that the phone will support the 3G band here in my country. cant wait for my G2 (arriving tomorrow)
btw... coverage is vital. if the 3G signal is weak or non-existent in your area, you'll be switched to edge for data on your phone (naturally).. good luck
sorry.. cant post the link. would've loved to have posted it.
juanito05 said:
hey bro.. I read from one topic in TMo's official G2 forum that the G2 will work on a country with only a UMTS band of 2100 both for up and down (the answer is from TMo employee, an engineer)... hope you'll be enlightened. I bought an unlocked G2 and I researched extensively before purchase. Im from the Philippines which only supports the 2100 band for 3G. I Know and Im 100% positive that the phone will support the 3G band here in my country. cant wait for my G2 (arriving tomorrow)
Click to expand...
Click to collapse
That's the Band I thing that I was talking about, that T-Mo shows on their spec sheets (but HTC doesn't seem to list, for some reason).
I think the G2 will do 3G if any one of the two bands are supported by the country. Correct me if Im wrong
juanito05 said:
hey bro.. I read from one topic in TMo's official G2 forum that the G2 will work on a country with only a UMTS band of 2100 both for up and down (the answer is from TMo employee, an engineer)... hope you'll be enlightened. I bought an unlocked G2 and I researched extensively before purchase. Im from the Philippines which only supports the 2100 band for 3G. I Know and Im 100% positive that the phone will support the 3G band here in my country. cant wait for my G2 (arriving tomorrow)
btw... coverage is vital. if the 3G signal is weak or non-existent in your area, you'll be switched to edge for data on your phone (naturally).. good luck
sorry.. cant post the link. would've loved to have posted it.
Click to expand...
Click to collapse
There is nowhere in the world that uses 2100 in both directions. Band 1 is 1900 UP, 2100 DOWN.
In all cases, your phone must be able to upload on the frequencies that the towers listen on, and download on the frequencies that the towers transmit on.
I.e., north america vision transmits on 1700 or 1900, receives on 2100.
Related
Anyone know if they will be releasing an unlocked version for the US carriers? I would get the European version myself, as 3g isn't a big deal for me, but what gives me concern is the Wall charger doesn't include a US plug. Im sure this is a small deal considering i could proly just buy a standard HTC charger, but im just curious if they will be having an unlocked that will both include the US charger, and work on US 3g networks.
no word yet hua?
Why do you think the European model won't work on U.S. 3G networks?
European 3G I believe works on the 1900 MHz band (supported by the Touch Pro 2). U.S. 3G operates on the 850 MHz band (also supported by the Touch Pro 2). By technical standards, this should work fine in the U.S. on the 3G band.
As far as the charger goes, yes, that is a concern. But I don't doubt that somewhere in your house you've got a miniUSB charger lying around. If not, your local Wal-Mart/Target/Radio-Shack/Best Buy will have a million of them.
jonnyp4l said:
European 3G I believe works on the 1900 MHz band (supported by the Touch Pro 2). U.S. 3G operates on the 850 MHz band (also supported by the Touch Pro 2). By technical standards, this should work fine in the U.S. on the 3G band.
As far as the charger goes, yes, that is a concern. But I don't doubt that somewhere in your house you've got a miniUSB charger lying around. If not, your local Wal-Mart/Target/Radio-Shack/Best Buy will have a million of them.
Click to expand...
Click to collapse
HTC.com sez...
Network:
HSPA/WCDMA:
Europe/Asia: 900/2100 MHz
Up to 2 Mbps up-link and 7.2 Mbps down-link speeds
Quad-band GSM/GPRS/EDGE:
Europe/Asia: 850/900/1800/1900 MHz
(Band frequency, HSPA availability, and data speed are operator dependent.) BUT...
3G networks are running the 850Mhz in the U.S. We already knew that the HTC Touch Pro2 would sport 3G frequency support in the 900Mhz and 2100Mhz WCDMA bands, but the 850Mhz WCDMA band isn't yet available.
jonnyp4l said:
European 3G I believe works on the 1900 MHz band (supported by the Touch Pro 2). U.S. 3G operates on the 850 MHz band (also supported by the Touch Pro 2). By technical standards, this should work fine in the U.S. on the 3G band.
As far as the charger goes, yes, that is a concern. But I don't doubt that somewhere in your house you've got a miniUSB charger lying around. If not, your local Wal-Mart/Target/Radio-Shack/Best Buy will have a million of them.
Click to expand...
Click to collapse
I have been on a number of blogs for the TP2 and they are seem to be in agreement that the European TP2 will only work over the EDGE network in US...
Personally, I am currently an iPhone user, but my wife is driving me crazy waiting for this US version!
JAlbridge said:
HTC.com sez...
Network:
HSPA/WCDMA:
Europe/Asia: 900/2100 MHz
Up to 2 Mbps up-link and 7.2 Mbps down-link speeds
Quad-band GSM/GPRS/EDGE:
Europe/Asia: 850/900/1800/1900 MHz
(Band frequency, HSPA availability, and data speed are operator dependent.) BUT...
3G networks are running the 850Mhz in the U.S. We already knew that the HTC Touch Pro2 would sport 3G frequency support in the 900Mhz and 2100Mhz WCDMA bands, but the 850Mhz WCDMA band isn't yet available.
Click to expand...
Click to collapse
Here is a good story on MSNBC.com on the various 3G standards. It is dated last Sept. but it is still good.
http://www.msnbc.msn.com/id/26511322/
uk/europe model will only work on edge in US. devicewire have done a detailed review on a europe model and could only get edge. to get 3g will need to wait for official model for that region.
jonnyp4l said:
European 3G I believe works on the 1900 MHz band (supported by the Touch Pro 2). U.S. 3G operates on the 850 MHz band (also supported by the Touch Pro 2). By technical standards, this should work fine in the U.S. on the 3G band.
As far as the charger goes, yes, that is a concern. But I don't doubt that somewhere in your house you've got a miniUSB charger lying around. If not, your local Wal-Mart/Target/Radio-Shack/Best Buy will have a million of them.
Click to expand...
Click to collapse
Actually you have it awry. European 3G runs on 2100mhz not 1900. U.S 3G runs on 850/1900mhz.
If you go to HTC's site, the TP2 Euro model will do GSM/GPRS/EDGE on 1900mhz. SO if O.P imports a Euro version, he could use it on EDGE or he could just wait for the AT&T version. T-mobile USA's 3G runs on 1700mhz though.
T-mobile USA's 3G requires both 1700mhz and 2100mhz. Suppose to be hear around July 22nd...
jonnyp4l said:
As far as the charger goes, yes, that is a concern. But I don't doubt that somewhere in your house you've got a miniUSB charger lying around. If not, your local Wal-Mart/Target/Radio-Shack/Best Buy will have a million of them.
Click to expand...
Click to collapse
Standard mini usb cables, yes and i also am aware i can also just charge the thing using the included USB cable. What im asking about is the WALL charger. If HTC uses thier standard USB-mini cable that is on a good chunk of their devices, including the HD/ Tilt/Diamond ect.. im sure finding a US charger wont be that hard.
Also, i was asking about an Unlocked US version, i do not intend to get one though the carrier as i dont want a modified version that they lock down. Nor do i care to wait till the fall when AT&T gets off their duffs to finally release it.
In any event, im just keeping my ear open and seeing what the grapevine heard about it.
Sorry guys. My bad.
I was confusing the specifications thinking that HTC would at least be smart enough to include full support for all markets. I was reading the Quad-Band GSM as support for HSPA/3G bands. I was totally bypassing the HSPA/WCDMA dual-band specification.
Chalk it up to a mix of wishful thinking and childish excitement. That does, however, kick the crap out of my week. Only HTC can bring me down this hard.
Well, I guess ATT got approved for theirs. Now the only question remains is, will their be an unlocked US version that supports 3g? or will we have to get the European version?
I'm in Taiwan for Computex and am so tempted to buy a touch pro 2 here. I would wait for the AT&T version but after seeing they changed the keyboard I want the HTC model. Only reason I haven't picked one up yet is because it only gets edge in the US on AT&T.
Does anyone know if the hardware cannot physically work on at&t's 3g bands or do we just have to wait for the at&t version to come out so the radio can be copied over or something. Thanks!
xsupercat8000 said:
I'm in Taiwan for Computex and am so tempted to buy a touch pro 2 here. I would wait for the AT&T version but after seeing they changed the keyboard I want the HTC model. Only reason I haven't picked one up yet is because it only gets edge in the US on AT&T.
Does anyone know if the hardware cannot physically work on at&t's 3g bands or do we just have to wait for the at&t version to come out so the radio can be copied over or something. Thanks!
Click to expand...
Click to collapse
The hardware physically cannot handle it. The Euro/Asian model only supports 3G on the European and Asian bands which are completely different frequencies from the ones used in the U.S. It's definitely not just a matter of software.
And I think we all need to be clear that no one has any idea what the AT&T keyboard will actually look like. The promotional material we have all seen and discussed ad nauseum is a slap-together of the HTC mockup with AT&T's promotional verbage. Even the promotional bullet points list that the "HTC Fortress" has a 5 row keyboard while the mockup picture shows a 4 row keyboard. That picture, at this point, means pretty much nothing at all.
I see, Ill hold off then. Its kinda hard to justify ~$800 on a phone here anyways that doesn't have a warranty in the states. Thanks for the help!
Will the US Unlocked Version have the secondary VGA camera for video conferencing like the European one does?
What is the advantage of getting a carrier specific phone (AT&T or T-Mobile) as opposed to a US Unlocked phone outside of price?
I'm currently with Sprint and want to switch to a GSM provider.
rmk1825 said:
Will the US Unlocked Version have the secondary VGA camera for video conferencing like the European one does?
Click to expand...
Click to collapse
no, the us carriers don't support that feature => no front facing camera.
sad but true.
rmk1825 said:
What is the advantage of getting a carrier specific phone (AT&T or T-Mobile) as opposed to a US Unlocked phone outside of price?
Click to expand...
Click to collapse
the carrier phones usually come with some sort of branding (software: e.g. sprint tv application / hardware: different battery cover, different keyboard layout and so on)
This can either be an advantage or a disadvantage...
rmk1825 said:
What is the advantage of getting a carrier specific phone (AT&T or T-Mobile) as opposed to a US Unlocked phone outside of price?
Click to expand...
Click to collapse
Having 3G capabilities vs. Edge only!
iodaed said:
no, the us carriers don't support that feature => no front facing camera.
sad but true.
Click to expand...
Click to collapse
galaxys said:
Having 3G capabilities vs. Edge only!
Click to expand...
Click to collapse
So basically what I was hoping for in terms of a 3G phone with a front facing camera won't happen this round.
I'm actually a little embarrassed to even have to ask this question, I'm also pretty sure I know the answer but better safe than sorry. Can anyone confirm that the Tmobile version of the TP2 is able to access the ATT 3G network? I'm 99% sure it will but that weird Tmob band makes me nervous, any input would be appreciated.
No, it will not. However the ATT version shouldn't be too far behind the Tmo launch so don't worry too much
no offense but what is the basis for your statement, the Tmob version will have
850/900/1700/1800/1900/2100 bands which are basically the ATT bands plus 1700, why would the Wing II not work on the ATT network?
aaronsmckee said:
no offense but what is the basis for your statement, the Tmob version will have
850/900/1700/1800/1900/2100 bands which are basically the ATT bands plus 1700, why would the Wing II not work on the ATT network?
Click to expand...
Click to collapse
Please show me where you found this data? Tmobile USA 3g network doesn't use the 1900 band for 3g; they use the 1700 band which is why Tmobile has to have devices specifically made for their network and why the Tmobile USA version won't work on ATT USA.
Again to clarify:
Tmobile USA = 1700/2100 for upload/download for its 3G
ATT = 850/1900 for upload/download for its 3G
Now Tmobile USA does use the 1900mhz frequency but that its GSM frequency it is not related to the 3g frequency. Confusing i know, but you asked.
One of the images advertising it does state all those bands, but does not differentiate which are for gsm and which for 3G (which can be misleading and confusing, ergo the clarification by jim_0068 ^). Though if they share the 2100 I have no idea whether you can get limited functionality or if you HAVE to have both of them. *shrugs*
jim_0068 said:
Please show me where you found this data? Tmobile USA 3g network doesn't use the 1900 band for 3g; they use the 1700 band which is why Tmobile has to have devices specifically made for their network and why the Tmobile USA version won't work on ATT USA.
Again to clarify:
Tmobile USA = 1700/2100 for upload/download for its 3G
ATT = 1900/2100 for upload/download for its 3G
Now Tmobile USA does use the 1900mhz frequency but that its GSM frequency it is not related to the 3g frequency. Confusing i know, but you asked.
Click to expand...
Click to collapse
actually this is not entirely true either,
AT&T is using 850 and 1900 Mhz for their 3G network,
it was revealed recently that they are pushing the 3G network to the higher frequency (850) and plan to have the 3G completely on 850 by 2010.
if AT&T is using 2100, we would've been able to use the european HTC devices which has the 2100 band.
jim_0068 said:
Please show me where you found this data?
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=537517
http://forum.xda-developers.com/showpost.php?p=4144863&postcount=1
aaronsmckee said:
...
850/900/1700/1800/1900/2100 bands
...
Click to expand...
Click to collapse
As far as I'm aware:
GSM: 850/900/1800/1900
UMTS:1700/2100
And therein lies the problem... While it supports all the bands that would be required, only a small subset actually apply to a 3G connection/signal...
Minimally, that would be the specs for it to work on T-Mobile, and quad-band GSM is just standard on 99% of phones these days...
baymon said:
actually this is not entirely true either,
AT&T is using 850 and 1900 Mhz for their 3G network,
it was revealed recently that they are pushing the 3G network to the higher frequency (850) and plan to have the 3G completely on 850 by 2010.
if AT&T is using 2100, we would've been able to use the european HTC devices which has the 2100 band.
Click to expand...
Click to collapse
You're correct and i edited my post it is 850/1900 for ATT US 3G
I gaurantee you that the T-Mobile Touch Pro2 will not work on ATT's 3G Network At All... the frequencies for ATT will only support the 2G Network and therefore only phone calls and text messaging will work.
let's not go that far, let's not forget gprs (same speed as dial-up) and more importantly EDGE (for some that's more than enough).
when I go into the phone settings -- band I have these options on the Tmobile TP2:
GSM (900+1800)+UMTS(900+2100)
GSM (1900+850)+UMTS(1900+850)
UMTS(2100+800)
hppyfnbll said:
when I go into the phone settings -- band I have these options on the Tmobile TP2:
GSM (900+1800)+UMTS(900+2100)
GSM (1900+850)+UMTS(1900+850)
UMTS(2100+800)
Click to expand...
Click to collapse
hmm, now I think the T-Mobile Touch Pro2 works on ATT's 3G Network.
It should also work worldwide too.
oooh, European bands, "standard" North American bands (they're not really standardized, neither in the US nor Canada and Mexico is barely getting 3G into place), and no idea what the last one is for, sounds like cdma...
solsearch said:
oooh, European bands, "standard" North American bands (they're not really standardized, neither in the US nor Canada and Mexico is barely getting 3G into place), and no idea what the last one is for, sounds like cdma...
Click to expand...
Click to collapse
hmmm why is there 800 MHz?
Obviously this is some bull**** because it supports all of the 3G frequencies of worldwide carriers and american carriers.
I wouldn't trust this guy, he has 4 posts and he's obviously posting rumors.
Sorry for the horrible pictures, using a g1 to take them. I love watching people jump to conclusions.
hppyfnbll said:
Sorry for the horrible pictures, using a g1 to take them. I love watching people jump to conclusions.
Click to expand...
Click to collapse
I think those numbers are for software only, in fact you probably don't have the hardware to support the frequencies of the wrong carrier.
seems that 800mhz is for Japan
and it doesn't allow for all of the North American bands (it's missing the 1700 one).
Could be just a software thing without hardware support, though that might be a tad odd, any way to check if it is?
solsearch said:
seems that 800mhz is for Japan
and it doesn't allow for all of the North American bands (it's missing the 1700 one).
Could be just a software thing without hardware support, though that might be a tad odd, any way to check if it is?
Click to expand...
Click to collapse
My Xperia X1a shows UMTS (900) even when I check the settings... IN FACT only the X1i supports
It's very likely that the numbers you are seeing are actually all of the frequencies that are "summed up" and therefore the TP2 for T-mobile does not have the actual hardware.
poetryrocksalot said:
hmmm why is there 800 MHz?
Obviously this is some bull**** because it supports all of the 3G frequencies of worldwide carriers and american carriers.
I wouldn't trust this guy, he has 4 posts and he's obviously posting rumors.
Click to expand...
Click to collapse
Those options have been around with the custom ROMs, I have that too on my Fuze, if your hardware doesn't support it then it'll just be an eye candy.
Bottom line is this, if you want to utilize AT&T's 3G, then you'll need to wait for AT&T's Fortress because you need the 850 and 1900 band (UMTS band II). If you want to use T-mobile's 3G you still need a TP2 that has the 1700 and 2100 band (UMTS band IV), and no you cannot use european TP2 to access US T-mobile's 3G band because european's (and asia's) 3G utilizes UMTS band I, they are on a slightly different frequencies even though they are categorized both on 2100Mhz.
http://en.wikipedia.org/wiki/UMTS_frequency_bands
hi guys,
check this out..
http://personaldigital.com.au/p171/HTC-Touch-PRO-2-T7373-850-Mhz-NEXTG-%21%21-PRO2/buy.html
It has those frequencies selectable out of the box on any version I believe.
no, you are taking about the GSM bands
i was talking about the UMTS/ WCDMA 850/2100
Most versions WORLDWIDE are 900/2100
850 is the AT&T (USA) and Telstra (Australia) 3G Bands
I am under the impression AT&T and Rogers/Fido also use the 1900mhz for downloads. The 850 bands is only the "upload" band.
Yeah, but paying around 400 dollars more for an 850mhz band you must REALLY want it.
Wait a second
I know att uses the 850 and 1900 bands for 3g but I never heard that the 1900 band is for downloading and the 850 band is for uploading. Is this true? Can anyone confirm this 100%?
I was holding off buying the samsung omnia II because it only had the 1900.
Unless I am mistaken, when do you really need to upload anything on a mobile phone?
I hope someone can confirm this asap because then I can get an omnia now instead of waiting for att to release the tp2.
I have a hard time finding a credible source that explains the use of the two separate Bands but I saw it mentioned more then one time.
Anyone got a source with Provider/Bands/Usage, it would be a great tool.
If the bands really serve separate function it's a problem because upload is essential to downloading because you need to tell the server what you want to received hehe.
So 3G band are the following: T-Mo uses 1700/2100, this phone would be a 850/2100, ATT would be 850/1900, Europe would mostly be 900/2100, etc.
at&t has two separate 3G bands; 850 and 1900 mhz. these two bands are independent of each other and each one does upload/download. (this is unlike tmobile which uses 1700 for download and 2100 for upload i believe). So the best thing is to figure out what area you are in; most areas are mixed with 850 and 1900 and some areas are only one or the other. At&t is making a move towards more 850mhz because it is the better penetrating band. I know in south florida it is mostly 850mhz with a little bit of 1900 in miami. Hence why my old Nokia E51 (has 850 and 2100 mhz 3G, like the Telus TP2) worked perfectly down here on 3G. hope this clarifies it
Thanks for the input.
I gotta see what`s the deal with Rogers/Fido in Montreal!
argoldst said:
I know att uses the 850 and 1900 bands for 3g but I never heard that the 1900 band is for downloading and the 850 band is for uploading. Is this true? Can anyone confirm this 100%?
I was holding off buying the samsung omnia II because it only had the 1900.
Unless I am mistaken, when do you really need to upload anything on a mobile phone?
I hope someone can confirm this asap because then I can get an omnia now instead of waiting for att to release the tp2.
Click to expand...
Click to collapse
I have a Touch HD from Telstra, i am using it on ATT in CA, it only has 850 for 3g, and it works for both, up and download. My area has mostly 850 and some 1900, I get 3g almost everywhere. works great.
Not worth it. I'm sure the AT&T version will be out within 2 months.
You will end up paying $500-$600 just to have a half-working one up to 2 months early. Its not even unbranded.
That's wrong. According to that page (and others), the Telstra version is a bit over a thousand dollars, not just 400-500 US. And you're right, seems the AT&T version will be out in October.
I mean $500-$600 more than the AT&T version.
your missing the worth
the point is you'll get the original HTC device included with the front facing camera the original keyboard none of the filler apps (that slow down the phone) and the sleeker look with out posibly loosing the straight talk technology. who knows what att will remove to save on cost.
Its already been shown. It loses the front camera and the keyboard arrangement is different. And it has an AT&T logo. Do you really want to pay $500 more just to not have that little logo? The front camera is useless in the U.S. and the keyboard is just different, not worst. Flash the original ROM or any cooked ROM and all your software issues (and lockouts) are gone. Plus with the AT&T version, you have access to super fast replacements if anything were to happen.
Heck, for that price you could possibly buy both the US and the European version, getting coverage basically everywhere in the world
I perma-rooted, unlocked, and gFreed my phone... I was wondering why I cannot connect to the network here in Korea...
I am using a sim card I received from SK Telecom when I got my Samsung A... but really, who would use a Samsung A if you have a G2 on hand?
Thank you
The T-Mobile G2 and HTC Desire Z have different radio hardware if I have done my research correctly. The G2 has been customized for the NA (USA) cell networks and frequencies, not sure if this would line up with the Korean networks as the G2 cannot get 3G on any USA network other than T-Mobile.
You'd get better luck with the Desire Z (European or Canadian version) as these radios are true world phones. Correct me if I'm wrong =/
Athrun88 said:
The T-Mobile G2 and HTC Desire Z have different radio hardware if I have done my research correctly. The G2 has been customized for the NA (USA) cell networks and frequencies, not sure if this would line up with the Korean networks as the G2 cannot get 3G on any USA network other than T-Mobile.
You'd get better luck with the Desire Z (European or Canadian version) as these radios are true world phones. Correct me if I'm wrong =/
Click to expand...
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I think you're wrong, but its not clear. The G2 appears to have both Band IV (1700/2100 MHz AWS) that T-Mob uses for data, and Band I (2100 MHz UMTS). The 2100 MHz for Band I is not the same as the 2100 MHz for Band IV. So that is where the confusion lies. Specs listed online (even on T-Mobs website) are not completely clear on this band compatibility (whether the G2 has Band I), and you will find web discussions about this if you search around, that raise more questions than answers.
Band I is what Korea uses for everything (voice and data), so an unlocked G2 should work, if in fact the phone has Band I. In searching around the internet, I haven't found any references to Korea specifically (or Japan, which also uses Band I for voice and data). But I've found some post by people that have used unlocked G2's in Europe, and 3G appears to work fine. So in theory, the hardware should work in Korea.
So either there is something else going on, that is preventing the OP from connecting. Or the G2 in fact lacks Band I.
redpoint73 said:
I think you're wrong, but its not clear. The G2 appears to have both Band IV (1700/2100 MHz AWS) that T-Mob uses for data, and Band I (2100 MHz UMTS). The 2100 MHz for Band I is not the same as the 2100 MHz for Band IV. So that is where the confusion lies. Specs listed online (even on T-Mobs website) are not completely clear on this band compatibility (whether the G2 has Band I), and you will find web discussions about this if you search around, that raise more questions than answers.
Band I is what Korea uses for everything (voice and data), so an unlocked G2 should work, if in fact the phone has Band I. In searching around the internet, I haven't found any references to Korea specifically (or Japan, which also uses Band I for voice and data). But I've found some post by people that have used unlocked G2's in Europe, and 3G appears to work fine. So in theory, the hardware should work in Korea.
So either there is something else going on, that is preventing the OP from connecting. Or the G2 in fact lacks Band I.
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I'm travelling to Korea tomorrow for a wedding and I'm in the same boat. I think this may have something to do with it
IMEI whitelist policy
Do you have any other info on your resolution to this problem?
You can. They partially opened their network, so if it is just individually being used (not commercial sale or anything), then you can register your G2 to your account only, so you can use your phone in Korea. Visit any cooperate stores ( both SKT, and KT will do).
I am using G2 in Korea as well. So good luck!
OK...the Desire Z only supports 900 and 2100 MHz which is European and Asian 3G bands. Is there any way that it can be made to operate on any North American 3G bands (like 850, 1700/2100, or 1900) or the issue is entirely hardware related, in which case nothing can be done. I should note that the phone has already been upgraded to 2.3.3 so the rooting options are rather limited.
Any contribution will be highly appreciated!!!
Its hardware limited to the bands you have. My understanding (correct me if I'm wrong) is that with that device (if it is unlocked) you will be able to use a T-mobile SIM to get 3G in the US. I'm not 100% sure with this though, as I don't think the DZ has 1700mhz which is needed for T-mobile.
You don't have the correct bands for AT&T 3G. There is a Canadian version of the DZ that will work on AT&T in the US on 850/1900, however.
The device is completely unlocked and unbranded but its specifications clearly state that its 3G frequencies are 900 and 2100.T-Mobile's 3G is 1700/2100 (together) and it's different from the European 2100. Unless the North American bands can be activated via a secret menu, or by flashing a different radio (impossible with 2.3.4), the phone, as is, can't connect to American 3G networks...only GSM 850 and 1900.
So, a miraculous secret menu appears to be my only hope, which, of course, is impossible to implement if the hardware doesn't support it!
Thanks for your concern!
Well, with you phone, you can use only half of tmo's 3g service since they reserve one band for uploads and the other band for downloads. So technically you kinda get 3g, but just 1 way.
Sent from my Desire Z via XDA App
I'm afraid that i can't do that either because the TMO's 2100 3G frequency spectrum is not the same as the European one!
I think I'll exchange it with a friend's European Nexus S which is tri-band 3G and, besides 900 and 2100, it supports TMO's 1700/2100 band! It is an excellent phone but I slightly prefer the metal and the weight of the Desire Z despite the fact that I do not particularly care about the physical keyboard!
Thanks anyway guys!
haki.gr said:
I'm afraid that i can't do that either because the TMO's 2100 3G frequency spectrum is not the same as the European one!
I think I'll exchange it with a friend's European Nexus S which is tri-band 3G and, besides 900 and 2100, it supports TMO's 1700/2100 band! It is an excellent phone but I slightly prefer the metal and the weight of the Desire Z despite the fact that I do not particularly care about the physical keyboard!
Thanks anyway guys!
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yea. i think mputtr brought up the correct point. The way T-mo uses 3G is 1700 and 2100 separately for down/up, so like you said its different than the Euro 2100 spectrum.
Sorry it didn't work out.