i just purchased a rogers magic due to the 288Mb ram, so that i could smoothly run the hero rom. However i have tmobile and after doing some research it seems that i wont be able to use 3g because of the frequencies.
So can anyone comfirm if this is true as i need or rather want 3g to work on my rogers which is yet to arrive..
Rogers Magic supports.
GSM/GPRS/EDGE Bands: 850/900/1800/1900 MHz
HSPA/UMTS Dual-Band: 850/1900 MHz
So I don't think so, I believe T-mo only supports 1700.
Clinton
guess i will have to sell it! as i need to have 3g working. But one more thing is is ther any magic phone out there that has the 288mb ram and supports tmobile 3g networks????
T-Mobile USA seems to be the only major carrier that I can find that uses a hybrid 1700/2100 HSPA setup. So, unfortunately, I highly doubt you will find one. Only way I can see it happening is disassembling two units and swapping radios.
I hope this not a problem posting this here. I am from Delaware and I am trying to get rid of my iPhone 3gs and get an htc magic with AT&T 3g bands. I am having no success with craigslist, it is flooded with iPhones. If anyone out there has a htc magic in great condition with warranty and wants a iPhone 3gs with a full zagg invisishield already on the phone. Please contact me at
[email protected]
Won't happen.
The Roger's Magic isn't going to put out the 3G capability you're looking for on the AT&T frequencies.
It would have to be properly scaled and designed to function on those frequencies, which it isn't. If a phone is GSM, that doesn't necessarily mean it can output the 3G speeds on any GSM provider. The MHz bandwidths need to be the same.
htc magic at&t 3g
Can anyone else confirm this, I have read multiple forums that have said that it is possible. The specs for Rogers say UMTS 850,1900 which is the same 3g freq. that AT&T uses.
It works with Rogers HTC Magic
I can confirm 3G works on AT&T with the Rogers HTC Magic.
Reignzone said:
The Roger's Magic isn't going to put out the 3G capability you're looking for on the AT&T frequencies.
It would have to be properly scaled and designed to function on those frequencies, which it isn't. If a phone is GSM, that doesn't necessarily mean it can output the 3G speeds on any GSM provider. The MHz bandwidths need to be the same.
Click to expand...
Click to collapse
Rogers uses the same bandwidths that ATT uses.
This is for the reason that Rogers used to be Rogers ATT.
I can confirm that my HTC Magic from Rogers gets 3g.
Hi everyone,
I bought my T-Mobile G1 from the states about a year ago, when the G1 was exclusive to T-Mobile. I am currently using my G1 on the Rogers network. I knew I would only get EDGE and won't be able to get 3G on my phone but I was content, because I wanted the G1 so bad!!!!!! Rogers operate on 850/1900Mhz and the T-Mo G1 runs on 1700/2100Mhz. Now since Rogers are selling the HTC Dream, it changes things for me. I want 3G!!!!!!
So, to get down to the point, I was wondering if there is a way for me to flash my T-Mo G1 with the Rogers HTC Dream image/firmware/radio so I can get 3G on the Rogers network?
My G1 info:
DREA100 PVT 32B
HSPL10.95.3000
CPLD-4
RADIO-2.22.19.26I
I know there are a few posts about this, but all the posts died.
If there is a existing post about this inquiry please point me to the right thread.
Thanks
good dream!
its impossible unless u replace the hardware
eniram said:
Hi everyone,
I bought my T-Mobile G1 from the states about a year ago, when the G1 was exclusive to T-Mobile. I am currently using my G1 on the Rogers network. I knew I would only get EDGE and won't be able to get 3G on my phone but I was content, because I wanted the G1 so bad!!!!!! Rogers operate on 850/1900Mhz and the T-Mo G1 runs on 1700/2100Mhz. Now since Rogers are selling the HTC Dream, it changes things for me. I want 3G!!!!!!
So, to get down to the point, I was wondering if there is a way for me to flash my T-Mo G1 with the Rogers HTC Dream image/firmware/radio so I can get 3G on the Rogers network?
My G1 info:
DREA100 PVT 32B
HSPL10.95.3000
CPLD-4
RADIO-2.22.19.26I
I know there are a few posts about this, but all the posts died.
If there is a existing post about this inquiry please point me to the right thread.
Thanks
Click to expand...
Click to collapse
I'm fairly sure that's a hardware limitation, and not something that software can fix. People have tried flashing the Rogers radio on tmo dreams and ended up with bricks (shockingly >.>).
ytwytw said:
good dream!
its impossible unless u replace the hardware
Click to expand...
Click to collapse
i need to flash an htc g1,
and i dont get any software to do,
the matter is that it is resetting,
i already hard reset it, and its the same,
what do you sugest?
I think this is very possible. I have in my possession a G1 from T-Mobile UK which was reflashed with the US ROM and it works swimmingly on 3G here.
Correct me if I'm wrong, but T-Mo UK's 3G is on 1900 MHz and US is on 1700. This would lead me to believe that the radio IS capable of operating on all current UMTS frequencies.
Sorry fine sirs,
but you would have to find a Canadian frequency version of this and install it in your phone.
BAMF said:
I think this is very possible. I have in my possession a G1 from T-Mobile UK which was reflashed with the US ROM and it works swimmingly on 3G here.
Correct me if I'm wrong, but T-Mo UK's 3G is on 1900 MHz and US is on 1700. This would lead me to believe that the radio IS capable of operating on all current UMTS frequencies.
Click to expand...
Click to collapse
i need the 1900mhz rom, urgent, help me please,
as i know here in this forum theres many smart guys that know about this,
here they can help, do it please
thank you in advance
Why don't you just try it and find out? If it doesn't work, then just flash back your original image.
I don't think you need to change the antenna. The radio chipset is what determines which frequencies you can operate on, the antenna is basically a glorified piece of wire. Think about this: the G1 in the USA operates GSM/GPRS on 850, 900, and 1900 MHz, as well as UMTS on 1700 and 2100 MHz... all with the same antenna! You don't need to change it to operate on Rogers.
BAMF said:
Why don't you just try it and find out? If it doesn't work, then just flash back your original image.
I don't think you need to change the antenna. The radio chipset is what determines which frequencies you can operate on, the antenna is basically a glorified piece of wire. Think about this: the G1 in the USA operates GSM/GPRS on 850, 900, and 1900 MHz, as well as UMTS on 1700 and 2100 MHz... all with the same antenna! You don't need to change it to operate on Rogers.
Click to expand...
Click to collapse
Really? Then why has nobody successfully "converted" the antenna to other frequencies?
happyface_0 said:
Really? Then why has nobody successfully "converted" the antenna to other frequencies?
Click to expand...
Click to collapse
Dude go back and read my last two posts... I have "converted" a UK G1 (read: no 1700 MHz band in the UK) to work on T-Mobile USA's 3G. The only "conversion" I did was installing the US ROM. No antenna swap, no mainboard swap, did not open the phone whatsoever. Unlocked and the flashed. Done.
BAMF said:
Dude go back and read my last two posts... I have "converted" a UK G1 (read: no 1700 MHz band in the UK) to work on T-Mobile USA's 3G. The only "conversion" I did was installing the US ROM. No antenna swap, no mainboard swap, did not open the phone whatsoever. Unlocked and the flashed. Done.
Click to expand...
Click to collapse
So you didn't get 3G before, and after flashing a "US" ROM (ROMs are region defined?) you have 3G? Hmmm
AdrianK said:
So you didn't get 3G before, and after flashing a "US" ROM (ROMs are region defined?) you have 3G? Hmmm
Click to expand...
Click to collapse
No, that is not what I said. When I received the phone, which was a UK model with the T-Mo UK ROM installed, I immediately unlocked it, rooted it, and reflashed with the US ROM. I did not test it before hand to see if 3G worked because the phone was locked to T-Mo UK and I only have a T-Mo US SIM card. I never said that it was not capable of 1700 MHz before the flash, only that the hardware was capable regardless of where it was bought.
And yes, the T-Mo UK ROM is different than that of the T-Mo US ROM. I am not a programmer, so I do not know how fundamentally different it is, but it most definitely comes with different apps and customizations, as well as APNs. Also, if you remove the battery cover, the UK model has a different part number than the US model. Beyond that, it is shown as an 'unrecognized device' in T-Mobile USA's system, whereas the US model shows up as an HTC G1. I believe that this is only related to the ESN, but the internet only works on it with the Android data package- it would not work on the Sidekick plan. I don't know if it's network-side or phone-side, but something is identifying it as an Android device.
Anyway, my whole point to the OP was that his phone should have the proper HARDWARE to operate on either Rogers' or T-Mobile's 3G, and that if something was preventing him from doing that now it was most likely due to the software on his phone.
The only part of a ROM that could change this would be the radio
https://your.rogers.com/web_auth/downloads.asp?product=Wireless
http://www.htc.com/ca/SupportDownloadList.aspx?p_id=270&act=sd&cat=2
http://forum.xda-developers.com/showthread.php?t=534464&highlight=repository
That's the Rogers download page, try it out.
Bump: anyone try this out yet? I'm curious... It seems hard to find the Rogers standalone update though, you might need to unroot then reroot to do this.
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.
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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?
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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
Click to expand...
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.
Click to expand...
Click to collapse
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
Click to expand...
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
Click to expand...
Click to collapse
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
Will this phone work for tmobile in the united states? If so do I have to unlock it or do I have to do something for it to work?
Anybody???
The DHD will work in USA as it is quad band (850/900/1800/1900 MHz for GSM), and dual band HSPA (900/2100).
If you buy a unlocked phone, you just need to put a sim in it.
But... reading articles in the past, the HTC EVO is the US version of the DHD.
Will it work with 3g? And yea they are alike but im a tmobile costumer so I can't use the evo
Anybody???
no 3g support only edge
No it will not work on US 3G bands. T-Mobile uses 1700/2100, and AT&T uses 850/1900 (I think). I currently have one, and I'm in Florida. My 2G speeds range from 200 KBPS to 500 KBPS. That's fast enough for me. Plus I'm mostly on Wi-Fi. As far as it being like the Evo, it is very different in a good way. Better processor, better CPU, better GPU. More RAM. More ROM. Ability to use HTCsense.com. You name it, and the DHD beats the Evo. The only plus I see on the Evo side is a front facing camera, but seeing is I would never use it, I could care less.
Is the radio issue software or hardware?
I can imagine this being controlled by the radio image and not the antenna itself.
Anyone knows if I can get a radio image for it that will actually work in other networks for 3G?