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After researching for weeks and weeks i recently found that there will be 2 different versions of the phone. one for north america.. the other for the rest of the world... something regarding patents of broadcomm or something... but looks like the USA version will not have VGA video capabilities with 30fps... it will be less at 24fps.
another difference is the network.. 850Mhz vs 900mhz GSM?
anyways....
i am wondering... it will probably be possible once both phones are launched... to buy the USA version... and flash it to the NON usa version's ROM??? and is that advisable.
also how much with 2yr contract you guys thinking it will cost??? im guessing 499-599 for the first couple weeks.
also... are the frequencies :850/1900/2100 MHz: related to HARDWARE of device and independent of ROM? say i flash rom to the europe version... will i still have UTMS 850/1900/2100 MHz or will it be 900/1900/2100 MHz... and im guessing the 900 wont be utilized since ATT doesnt use it.
and if i lose the 850mhz range... for utms by flashing .. if so.. will i really experience signal quality drop?
sry for all the questions.. im not very familiar with these stuff.
ps: but i heard it will be a hardware limitation so even by flashing rom... USA version will not be able to decode h.264 video am I right?
SonyEricsson Website Has 5 Bands
fiapop said:
also... are the frequencies :850/1900/2100 MHz: related to HARDWARE of device and independent of ROM? say i flash rom to the europe version... will i still have UTMS 850/1900/2100 MHz or will it be 900/1900/2100 MHz... and im guessing the 900 wont be utilized since ATT doesnt use it.
and if i lose the 850mhz range... for utms by flashing .. if so.. will i really experience signal quality drop?
sry for all the questions.. im not very familiar with these stuff.
ps: but i heard it will be a hardware limitation so even by flashing rom... USA version will not be able to decode h.264 video am I right?
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http://sonyericsson.com/cws/products/mobilephones/specifications/x1?cc=us&lc=en ............!850/900/1700/1900/2100 MHz bands ............!
Technology said:
http://sonyericsson.com/cws/products/mobilephones/specifications/x1?cc=us&lc=en ............!850/900/1700/1900/2100 MHz bands ............!
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Yes that's very doubtfully in the same version, that's what he's saying. 2 different versions, likely 850/900/1900/mhz UMTS on one, and 900/1700/2100mhz UMTS on the other. As for hardware limitations, almost definitely. I can't imagine having 5 bands of UMTS available in 1 phone, I think it'd have to be bigger. You could flash a new ROM independent of radio, and not mess up the coverage, sure.
As for your questions about 850mhz, here's how it goes.
AT&T, in the US: 850/1900MHZ UMTS, depending on the area it will be 1 or the other.
T-Mo, in the US: 1700/2100MHZ UMTS, both active at the same time, one for upload the other for download.
Europe: 900MHZ (I believe) UMTS
Asia: 2100MHZ (I believe) UMTS
So with AT&T, losing functionality of 1 band will limit your reception in certain parts of the country... But don't flash a new radio and it should be fine.
As for carrier, I don't know if any in the US is going to pick this up and sell it subsidized. If not, you're shelling out all $900+ for this baby with no contract.
Black93300ZX said:
Yes that's very doubtfully in the same version, that's what he's saying. 2 different versions, likely 850/900/1900/mhz UMTS on one, and 900/1700/2100mhz UMTS on the other. As for hardware limitations, almost definitely. I can't imagine having 5 bands of UMTS available in 1 phone, I think it'd have to be bigger. You could flash a new ROM independent of radio, and not mess up the coverage, sure.
As for your questions about 850mhz, here's how it goes.
AT&T, in the US: 850/1900MHZ UMTS, depending on the area it will be 1 or the other.
T-Mo, in the US: 1700/2100MHZ UMTS, both active at the same time, one for upload the other for download.
Europe: 900MHZ (I believe) UMTS
Asia: 2100MHZ (I believe) UMTS
So with AT&T, losing functionality of 1 band will limit your reception in certain parts of the country... But don't flash a new radio and it should be fine.
As for carrier, I don't know if any in the US is going to pick this up and sell it subsidized. If not, you're shelling out all $900+ for this baby with no contract.
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I have confirmed the 5 bands already.....
Technology said:
I have confirmed the 5 bands already.....
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:O
Confirmed like, you own one and have used it in different markets on 3G?
Then what 2 versions is he talking about?
Confirmed with SonyEricsson
Black93300ZX said:
:O
Confirmed like, you own one and have used it in different markets on 3G?
Then what 2 versions is he talking about?
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I have confirmed the compatiable in the USA with T-Mobile's USA 3g and AT&T's 3g, I have confirmed this with SonyEricsson. The 2 versions are "a" and "i", this may have been the intentions of SonyEricsson in the beginning, but may have change to one worldwide 5 band Xperia X1, this part has not been confirmed. Here is a website that tells you what carriers in the USA the Xperia X1 will not be compatible with at all. http://www.smart-mobile-gadgets.com/welcome/cart.php?target=product&product_id=1236 Also it will tell you all bands and carriers the Xperia X1 will be compatible with in the USA........!
interesting. well i sure hope ATT picks it up so i can do it with a contract and save some cash on the spot
so has it been released officially and confirmed in germany.. and those other countries?
also... with the "usa" version that doesnt do 30fps...
will it play pretty smooth any videos that i put on it? like movies .mp4?
It's supposed to be able to play 720x480 (DVD Quality) movies smoothly so I don't see why it shouldn't.
Time will tell if it can play movies properly. Its a driver issue.
Can the Diamond play normal Xvid files? I doubt it.
This device shouldnt neither unless it has some good drivers and unless the ram acctualy makes the playback more fluid.
i heard its supposed to have some ati graphics card in there for that aspect of things. so im thinking it will do fine... i guess we wait and see reviews..
Technology said:
I have confirmed the compatiable in the USA with T-Mobile's USA 3g and AT&T's 3g, I have confirmed this with SonyEricsson. The 2 versions are "a" and "i", this may have been the intentions of SonyEricsson in the beginning, but may have change to one worldwide 5 band Xperia X1, this part has not been confirmed. Here is a website that tells you what carriers in the USA the Xperia X1 will not be compatible with at all. http://www.smart-mobile-gadgets.com/welcome/cart.php?target=product&product_id=1236 Also it will tell you all bands and carriers the Xperia X1 will be compatible with in the USA........!
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being compatible and getting 3g is totally different. one version can work on at&t and only receive edge instead of 3g cause it is missing one of the bands....
Technology said:
I have confirmed the compatiable in the USA with T-Mobile's USA 3g and AT&T's 3g, I have confirmed this with SonyEricsson. The 2 versions are "a" and "i", this may have been the intentions of SonyEricsson in the beginning, but may have change to one worldwide 5 band Xperia X1, this part has not been confirmed. Here is a website that tells you what carriers in the USA the Xperia X1 will not be compatible with at all. http://www.smart-mobile-gadgets.com/welcome/cart.php?target=product&product_id=1236 Also it will tell you all bands and carriers the Xperia X1 will be compatible with in the USA........!
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I don't trust the spec from someone who just want to attract buyers. They don't even have a final production box in their hands. Where they got all that from?
Those specs are wrong and wrong. taken from old sources. The first line is true, but you go down the list and it is only inaccuracies, so what you believe?
3G network. How they know?
Size. Inaccuarte
Memory phone book capacity? Are you kidding me?
400 MB internal memory. What? that's not even a binary number.
HSDPA 3.6 Mbps? I know it is 7.2
W.M 6.0? They didn't even got this one
Motion Sensor? ha ha ha ha
Battery standard Li-Ion? What happes with the Li-Po
Would you buy from these guys? How do you know what's coming in their box?
and by motion sensor their relating to accelerometer...and indeed the xperia does NOT come with that.. so screen will not rotate itself as u rotate phone. switching to landscape mode and vice versa will take the flick of a button/option.
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 ?
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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
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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
I was lamenting on my lack of foresight, getting a HD2 without researching the different bands that AT&T and T-Mobile use for 3G coverage, when just the other day...
NOTE: This was on a call to AT&T Support and the tech tells me:
a) Once unlocked from TMOUS, I should do a search on "AT&T APN's" and that if I search diligently, I will find APNs on AT&T's network that support HD2 3G Bands
b) AT&T techs, right in his data center have this working.
So I research a bit, and, apart form everyone and his brother professing to be 3G Band experts, and saying all I will see is Edge if I put the HD2 on AT&T. (Which is troublesome, since Wikipedia claims Edge is being dropped to facilitate more 3G bandwidth, so potentially I would lose even THAT).
Here is what official information I could find on the two:
The U.S. T-Mobile network predominately uses the GSM/GPRS/EDGE 1900 MHz frequency-band. T-Mobile's UMTS (3G) service is now active in over 30 major US cities
Further all official documentation states that AT&T uses:
* 850 MHz UMTS/HSPA/HSPA+ 3G
* 1900 MHz UMTS/HSPA/HSPA+ 3G
Finally look at my screenshot, taken from the GSM 3G toggle on the "Settings Tab" of Manila. I am running a NRG ROM (see signature) and I KNOW this is wishful thinking. This screen in particular is no doubt a function of the many devices NRG cooks for, but really, can anyone explain to me why this technically would NOT WORK (other than "just because", LOL)?
AT&T's CEO recently gave an interview and stated that the company's 3G service is being migrated to the 850MHz band with a target date of 2010:
http://www.intomobile.com/2009/02/24/att-3g-network-going-850mhz-nationwide-by-2010.html
For what it's worth, I think the Australian version of the HD2 might have a band that overlaps with US AT&T bands.
Whos gonna buy me one?
Mase_Mase said:
AT&T's CEO recently gave an interview and stated that the company's 3G service is being migrated to the 850MHz band with a target date of 2010:
http://www.intomobile.com/2009/02/24/att-3g-network-going-850mhz-nationwide-by-2010.html
For what it's worth, I think the Australian version of the HD2 might have a band that overlaps with US AT&T bands.
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Yes, I have been hearing the same. Problem is, I am not likely to fork out $$ for ANOTHER HD2. I just wanted to get the most out of the one I have. Thx!
if something like this WAS possible, it would have to be through something like a rogue apn setup on non-standard frequencies on ATT's network...but good luck finding anything like that, it wouldn't be able to remain a secret if it existed. also, if the hd2 had the ability to use those native frequencies, it would have had to have been certified as such by the FCC (which of course it wasn't).
To summarize, the only way to make it happen is if ATT did indeed somehow sneak in alternative-frequency apn's across it's entire network. Let us know how the search for those turns out
SmartAs$Phone said:
The U.S. T-Mobile network predominately uses the GSM/GPRS/EDGE 1900 MHz frequency-band. T-Mobile's UMTS (3G) service is now active in over 30 major US cities
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Sorry.
http://en.wikipedia.org/wiki/T-Mobile_USA
3G (UMTS/HSPA/HSPA+) service by T-Mobile exclusively uses the AWS 1700/2100 MHz frequency-band, making it incompatible with other existing 3G UMTS/HSPA networks already established in the United States.
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Its not physically possible. The hardware would have to be changed. They don't make radio chips with all the bands in it. I see this all the time, some random csr from whatever company says it can be done, but its just not true. Cell phones are designed and made for a specific company. They don't make universal radios and just turn off some bands. They don't exist, though I did read a few months back that Motorala was working on making one.
Although I understand the reason for your wishful thinking (and you did do some research which is always great), unfortunately it is just that and I'll gladly (though not happily) tell you why.
As you stated "U.S. T-Mobile network predominately uses the GSM/GPRS/EDGE 1900 MHz frequency-band" which is correct (and it also uses the 850 band for edge as well....though this is usually more 'roaming' aka you're using another companies cell tower because tmobile made a contract with them to allow you). You were also correct in stating that "Further all official documentation states that AT&T uses:
* 850 MHz UMTS/HSPA/HSPA+ 3G
* 1900 MHz UMTS/HSPA/HSPA+ 3G"
Also, ironcroth was also correct in quoting that "3G (UMTS/HSPA/HSPA+) service by T-Mobile exclusively uses the AWS 1700/2100 MHz frequency-band" which alone might not answer your question.
So where is the problem if both use 1900 and 850 bands? Well, the problem is that in the hardware, there is a difference between GSM/GPRS/EDGE and 3G/UMTS/HSPA/HSPA+. In other words, you can't use 1900 and 850 Edge frequency of the HD2's radio chip to get 3G (UMTS/HSPA/HSPA+); they are incompatible. This is why phone spects always list both seperatly and not just all the frequencies that it supports.
The above reason alone will make the TmoUSA HD2 incompatible with AT&T's 3G, but there's even more. When Tmobile says that it uses the (for example) 1900 frequency band for Edge, it doesn't actually mean that it uses 1900-1999 frequencies; instead it only uses a part of that spectrum (buying the full 100 frequency range would be expensive so they only buy what they need). Instead they only use maybe something like 1943-1978. And this range will likely not overlap with the frequncies that AT&T uses for their 3G (you can look up the exact values on the internet if you'd like). This second reason is why a european phone which supports 2100 band for 3g will not work on Tmobile's 3G 2100 frequncy (because they don't actually overlap).
Lastly (and I almost forgot to mention this), the screen shot you posted from your ROM can indeed be changed by a cook to whatever they want (though it won't actually make any difference since it all depends on the hardware). However, in this case, it's likely because htc actually made the error and never updated that screen and just used it from their previous builds from previous phones (this was stated on the forums before and I'm sure you'd be able to find it given some searching).
Hope this helps.
sirphunkee said:
To summarize, the only way to make it happen is if ATT did indeed somehow sneak in alternative-frequency apn's across it's entire network. Let us know how the search for those turns out
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Quite unlikely, the AWS bands are licensed to TMO, im sure TMO would notice real quick if there were unlicensed cell towers on the AWS band and the FCC would be slapping ATT with fines pretty quick. quite alot of work goes into setting up cell towers and the frequencies each cell segment runs on, If a rouge cell tower went up overlapping TMO's frequencies, all hell would likely break loose as far as customers being able to get usable service in the area.
also as far as the terminology APN's don't operate on a "frequency" an APN is more or less and authentication/proxy server on the data network after the data has transferred over the air interface.
Maybe the best way to think of it is similar to a cell tower being like a wifi access point, and the APN being like an authenticating router/firewall on a standard tcp/ip network. yeah i know its not quite the same, but that might be a simple way to visualize it for those familiar with networking
d0ug said:
Quite unlikely, the AWS bands are licensed to TMO, im sure TMO would notice real quick if there were unlicensed cell towers on the AWS band and the FCC would be slapping ATT with fines pretty quick. quite alot of work goes into setting up cell towers and the frequencies each cell segment runs on, If a rouge cell tower went up overlapping TMO's frequencies, all hell would likely break loose as far as customers being able to get usable service in the area.
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Exactly
d0ug said:
also as far as the terminology APN's don't operate on a "frequency" an APN is more or less and authentication/proxy server on the data network after the data has transferred over the air interface.
Maybe the best way to think of it is similar to a cell tower being like a wifi access point, and the APN being like an authenticating router/firewall on a standard tcp/ip network. yeah i know its not quite the same, but that might be a simple way to visualize it for those familiar with networking
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Right, very true...I should have said "apn's attached to alternative-frequency radios" Are you a Ham d0ug?
sirphunkee said:
Exactly
Right, very true...I should have said "apn's attached to alternative-frequency radios" Are you a Ham d0ug?
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Haha no, though i do have scanners and listen in on HAMs sometimes and have read up on the stuff somewhat. never gotten myself licensed.
On the subject of scanners, there isnt all that much interesting to listen too anymore. Here in tampa the police and sheriff are on analog trunked now, so its impossible to follow anything without a trunking scanner, and about the only other things you can listen to are cabbies, tow truck drivers, aircraft, and hams. I don't even know why scanners still have the 800mhz blocks anymore, analog amps cellular has been dead a few years now. you find lots of digital noise scanning around though, just about everything is transmitted digitally now. i've got an icom R20 that goes from 150khz all the way upto 3ghz
So why don't you put in an AT&T sim card with a 3G data plan and let us know if you get 3G on your HD2?
Svegetto said:
Although I understand the reason for your wishful thinking (and you did do some research which is always great), unfortunately it is just that and I'll gladly (though not happily) tell you why.
As you stated "U.S. T-Mobile network predominately uses the GSM/GPRS/EDGE 1900 MHz frequency-band" which is correct (and it also uses the 850 band for edge as well....though this is usually more 'roaming' aka you're using another companies cell tower because tmobile made a contract with them to allow you). You were also correct in stating that "Further all official documentation states that AT&T uses:
* 850 MHz UMTS/HSPA/HSPA+ 3G
* 1900 MHz UMTS/HSPA/HSPA+ 3G"
Also, ironcroth was also correct in quoting that "3G (UMTS/HSPA/HSPA+) service by T-Mobile exclusively uses the AWS 1700/2100 MHz frequency-band" which alone might not answer your question.
So where is the problem if both use 1900 and 850 bands? Well, the problem is that in the hardware, there is a difference between GSM/GPRS/EDGE and 3G/UMTS/HSPA/HSPA+. In other words, you can't use 1900 and 850 Edge frequency of the HD2's radio chip to get 3G (UMTS/HSPA/HSPA+); they are incompatible. This is why phone spects always list both seperatly and not just all the frequencies that it supports.
The above reason alone will make the TmoUSA HD2 incompatible with AT&T's 3G, but there's even more. When Tmobile says that it uses the (for example) 1900 frequency band for Edge, it doesn't actually mean that it uses 1900-1999 frequencies; instead it only uses a part of that spectrum (buying the full 100 frequency range would be expensive so they only buy what they need). Instead they only use maybe something like 1943-1978. And this range will likely not overlap with the frequncies that AT&T uses for their 3G (you can look up the exact values on the internet if you'd like). This second reason is why a european phone which supports 2100 band for 3g will not work on Tmobile's 3G 2100 frequncy (because they don't actually overlap).
Lastly (and I almost forgot to mention this), the screen shot you posted from your ROM can indeed be changed by a cook to whatever they want (though it won't actually make any difference since it all depends on the hardware). However, in this case, it's likely because htc actually made the error and never updated that screen and just used it from their previous builds from previous phones (this was stated on the forums before and I'm sure you'd be able to find it given some searching).
Hope this helps.
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Thank you very much. I myself had been wondering why I couldn't get an HTC Desire (honestly, pretty much the only phone I'd change my HD2 for unless a GSM version of the Supersonic becomes available) and have it work in the US at the 2100 frequency.
When I asked before, people would tell me that a phone would have to support both bands (1700/2100) to actually run on T-Mobile because one did HSDPA and the other did HSUPA, but that didn't make sense to me since all you need is a single band frequency to handle both D and U data streams.
Your explanation makes a lot more sense. It's a sad thing, though.
I remember reading somewhere that a chip manufacturer (motorola?) was working on a all frequency chip. I also read that the inherent problem with that would be the antenna.
It would be awesome to have an all band phone that world travelers could utilize. I love the HD2, I had upgraded from a long time use of a Treo 750. That phone was pretty close (quad GSM, triple umts). However when Tmo rolled out it's 3G on 1700 I was still stuck on edge with the 750.
Finally bit the bullet for an HD2, really like this phone. The 750 seems antique now heheh
moonchaser said:
I remember reading somewhere that a chip manufacturer (motorola?) was working on a all frequency chip. I also read that the inherent problem with that would be the antenna.
It would be awesome to have an all band phone that world travelers could utilize. I love the HD2, I had upgraded from a long time use of a Treo 750. That phone was pretty close (quad GSM, triple umts). However when Tmo rolled out it's 3G on 1700 I was still stuck on edge with the 750.
Finally bit the bullet for an HD2, really like this phone. The 750 seems antique now heheh
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Building a multi frequency chip isnt all that hard. software defined radios have existed for quite some time. basically a simple reprogramming allows it to xmit/rec on a different frequency. the trouble comes in the antenna design. antennas must be designed to work at specific frequencies to be the most efficient at transmitting and the most sensitive at receiving. trying to make a single antenna capable of xmit and rec anywhere in a bandwidth ranging from 700mhz upto say the 2500mhz that wimax uses, is going to make for quite a ****ty antenna at any frequency. When you see the piece of foil antennas in todays phones, they may just look like a simple piece of foil, but a lot of design goes into them to make them work well at the frequencies they need to work with.
I guarantee if you compared the internal antenna of the Euro, AUS and USA HD2 there are slight differences. Ill bet the radio chip in them is for the most part identical, there may be something modified on them to keep people from interchanging the radio roms between them though since that would invalidate any FCC or other country equivalent certification for that phone to operate
Its one thing to run a hacked rom, its something completely different to use an uncertified radio rom. Could cause all kinds of havoc with the cellular network, and get slapped with FCC fines if they could track down your trouble causing phone
d0ug said:
Building a multi frequency chip isnt all that hard. software defined radios have existed for quite some time. basically a simple reprogramming allows it to xmit/rec on a different frequency. the trouble comes in the antenna design. antennas must be designed to work at specific frequencies to be the most efficient at transmitting and the most sensitive at receiving. trying to make a single antenna capable of xmit and rec anywhere in a bandwidth ranging from 700mhz upto say the 2500mhz that wimax uses, is going to make for quite a ****ty antenna at any frequency. When you see the piece of foil antennas in todays phones, they may just look like a simple piece of foil, but a lot of design goes into them to make them work well at the frequencies they need to work with.
I guarantee if you compared the internal antenna of the Euro, AUS and USA HD2 there are slight differences. Ill bet the radio chip in them is for the most part identical, there may be something modified on them to keep people from interchanging the radio roms between them though since that would invalidate any FCC or other country equivalent certification for that phone to operate
Its one thing to run a hacked rom, its something completely different to use an uncertified radio rom. Could cause all kinds of havoc with the cellular network, and get slapped with FCC fines if they could track down your trouble causing phone
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Click to collapse
Yeah that's on par with what I had read, you do well at explaining it.
Maybe some futuristic worldphone designer would opt for interchangeable external antenna's... I could live with that or maybe multiple builtin foils with a software driven switch between them and the radio... that would be neat. Not holding my breath though...
Interesting on the FCC, hadn't thought of that.
moonchaser said:
Yeah that's on par with what I had read, you do well at explaining it.
Maybe some futuristic worldphone designer would opt for interchangeable external antenna's... I could live with that or maybe multiple builtin foils with a software driven switch between them and the radio... that would be neat. Not holding my breath though...
Interesting on the FCC, hadn't thought of that.
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Thanks, I was just again looking at the spec differences between the euro and TMO HD2s and i really don't know why HTC did not also give the TMO HD2 850/900mhz HSPA/WCDMA to truly make it a world 3G phone. According to the tech specs over at HTC.com, TMO HD2 can already use 850/900mhz for GSM/GPRS/EDGE so the antenna is obviously quite capable of both. The only other frequency the TMO HD2 has to handle that the euro doesn't is 1700mhz
Part of me thinks it was probably done so the HD2 couldn't be used over on AT&T
d0ug said:
Thanks, I was just again looking at the spec differences between the euro and TMO HD2s and i really don't know why HTC did not also give the TMO HD2 850/900mhz HSPA/WCDMA to truly make it a world 3G phone. According to the tech specs over at HTC.com, TMO HD2 can already use 850/900mhz for GSM/GPRS/EDGE so the antenna is obviously quite capable of both. The only other frequency the TMO HD2 has to handle that the euro doesn't is 1700mhz
Part of me thinks it was probably done so the HD2 couldn't be used over on AT&T
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Click to collapse
It had nothing to do with AT&T, it's because there's a difference between Edge and 3g radio frequency. More than that, there is no phone radio chip that supports all those frequencies and even more so, htc doesn't manufacture radio chips, they purchase them and put them in their phones....just like the majority of the hardware
Srs wow hd
How do you get SRS WOW HD downloaded onto the HTC HD2?
Svegetto said:
a european phone which supports 2100 band for 3g will not work on Tmobile's 3G 2100 frequncy
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I think this is incorrect -- the 2100 band support on the HD2 is in fact expressly intended for 3G compatibility in Europe/Asia, and people have reported being able to get 3G in Europe with their US HD2.
1700 == US-only 3G
2100 == Europe, Asia 3G
What's missing, I believe, might be 3G support in certain areas of places like Latin America which may follow US frequencies but don't have T-Mobile USA there to provide 1700 service... e.g., no 2100 and no 1700 either.
T-Mobile U.S. uses both AWS 1700mhz and 2100mhz for 3G. The 2100mhz band is used for transmit and 1700mhz is used for receive. Hence the incompatibility with other carriers phones that only operate in one spectrum.
Cheers.
~Jasecloud4
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
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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?
Click to expand...
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.
hi all
well, fianly after a big argument and debate with vodafail, about my ghg, and them saying that it will support ALL bands and freq's that they are supporting, or launching. i find out that, it will infact NOT support their 850 G network. which sh8ts me to tears. i have had nothing but trouble with them about this, and the constant reception dropouts that i am having.
i have flashed: radio 12.54.60.25_26.09.04.11_M2
and RIL_12.54.60.25_26.09.04.11_M2
but that hasnt seemed to help. so, i am wondering if there is a way to get my phone to support the aus 850mhz 3g network? is it a radio flash or anything? or is it a hardware based thing?
i looked around, but nothing is specific to my location.
i did however notice that the american version of the phone supports the 850 3g network.
so, is it possible to get it to work? or will i need another phone?
cheers
jbates58
Wait, are you in Australia? As far as I know only Telstra uses the 850 MHz band. Vodafone uses the 900/2100 MHz bands.
yea. but vodafone are starting to roll out on the 850mhz for 3G. they havent fully done it yet, but my area is sposed to have it, and with all the constant drop outs that im facing, its BS. i have flashed a different radio to stock (listed in OP) and that hasnt made alot of difference. is there some way i can up the power or something?
cheers
jbates58
I think you may need another handset my friend. It is a hardware issue.
Be thankful you are on not on WIND mobile in Canada! AWS and so few handset choices!
jbates58 said:
hi all
well, fianly after a big argument and debate with vodafail, about my ghg, and them saying that it will support ALL bands and freq's that they are supporting, or launching. i find out that, it will infact NOT support their 850 G network. which sh8ts me to tears. i have had nothing but trouble with them about this, and the constant reception dropouts that i am having.
i have flashed: radio 12.54.60.25_26.09.04.11_M2
and RIL_12.54.60.25_26.09.04.11_M2
but that hasnt seemed to help. so, i am wondering if there is a way to get my phone to support the aus 850mhz 3g network? is it a radio flash or anything? or is it a hardware based thing?
i looked around, but nothing is specific to my location.
i did however notice that the american version of the phone supports the 850 3g network.
so, is it possible to get it to work? or will i need another phone?
cheers
jbates58
Click to expand...
Click to collapse
jbates58 said:
hi all
well, fianly after a big argument and debate with vodafail, about my ghg, and them saying that it will support ALL bands and freq's that they are supporting, or launching. i find out that, it will infact NOT support their 850 G network. which sh8ts me to tears. i have had nothing but trouble with them about this, and the constant reception dropouts that i am having.
i have flashed: radio 12.54.60.25_26.09.04.11_M2
and RIL_12.54.60.25_26.09.04.11_M2
but that hasnt seemed to help. so, i am wondering if there is a way to get my phone to support the aus 850mhz 3g network? is it a radio flash or anything? or is it a hardware based thing?
i looked around, but nothing is specific to my location.
i did however notice that the american version of the phone supports the 850 3g network.
so, is it possible to get it to work? or will i need another phone?
cheers
jbates58
Click to expand...
Click to collapse
Worth trying the TELUS Rom Radio 23rd June 2011: Radio_12.56.60.25_26.10.04.03_M - Telus DHD 2.43.661.1 with matching RIL from Jkoljo thread. TELUS in Canada seems to operate on 850mhz for 3G. Hope that will solve your problem. If not... New phone I guess.
Cheers
You can flash every radio out there and it won't help. It is a hardware issue and not a software issue as mentioned above. The only Desire HDs that will have the 850 UMTS band is Telus of Canada or the Inspire from ATT in the US. I am surprised that Telstra does not have a NextG version.
Hmm I'm on Three which will be merging networks with voda at the end of the year.. apparently we'll be forced to switch sigh..
Hopefully it wont cause any problems, although, Three is only on 2100 and I currently have no issues with my reception (Three also uses Telstra's 850 network, but I'm guess I only pick up 2100 with my DHD).
I guess we'll have to wait and see. You would think that being able to pick up voda's 900mhz network would improve reception...
But yeah, as Agoattamer said, Voda and Three's DHDs wont work on UMTS850.
As per both Voda's and Three's websites, specs for the DHD:
GSM: 850/ 900/ 1800/ 1900
UMTS: 900/ 2100 HSDPA/ HSUP
So it looks like you'd need a new phone to make use of the new 850mhz network.