Ok. Im a little new for all the different terms with a cell phone radio and all that. But theres something that i just cant seem to get a grip on. The US HD2 supports only the 1700/2100mhz for UMTS. Which means all of us ATT users cant have the use of 3g and i believe it hinders the use of the HD2 here on ATT. Theres a few things I cant seem to understand and some things I need technical expertise on:
Ive been reading about the hd2 and i found that the cellular modem is built inside the snapdragon processor. (found that from qualcomm and on pdadb.net)
If the processor is the same for both models why cant it accept the umts850 and 1900 mhz bands?
Answer to that: Im told its hard-coded on the 3g chips and cant be changed.
Question to that answer: Why is there a ROM update for the Dopod HD2 that in fact ADDS support for the UMTS900 MHZ band? If its hard-coded on the chip then why is there a software update for it? Can that update be somehow modified to add umts 850/1900/etc band support. its just some of the specs and things ive found online (mostly here at XDA) just dont seem to add up.
My overall summary:
Processors are both the QSD8250 which supports ALL GSM types (by that i dont mean all freq. bands.) So the cellular modem inside the phones are the same.
Different basebands on the different models when its "hard-coded" on the phones themselves.
Why a software update adding support for another baseband freq?
Someone please elighten me. I just think that theres more to this whole baseband thing than we know since we seem to believe one thing, but theres other official work that disproves those claims.
I use:
TMO HD2 (HardSPL'd and unlocked to AT&T)
WM ROM: Omega XT V14
Android ROM: Mdeejay's Froyo Sense 3.1
Radio: 50.4 version.
The reason the Dopod HD2 got that software update is because that band was always there, but WinMo couldn't utilize it. What you have read about the processor being locked to band X/X is completely correct. The T-Mobile US HD2 will only ever support 1700/2100 because thats what revision of Snapdragon it's using. The Dopod model is using a different revision and always had support for the 900 band. The only way the US HD2 will ever get 3G on ATT is if ATT switches to the 1700 band, or if the processor is upgraded. If you really wan't 3G that bad, I would look into getting an international HD2 as some of them do indeed support ATT 3G.
Ok but if all 3 (us,Telstra,and dopod) use the qsd8250b then wouldnt they all be able to add support for other frequencies that the 3g chip can use or is it that there's different antenna types for different regions or somethin?
Sent from my HTC HD2
What I mean is that, when they are makeing the processors for each board revision, IE the US and EU boards, they enable or disable the frequencies at a hardware level. You can't just flip a switch and have that feature turned on, its not that simple. The processor type is the QSD8205B, but there are many different internal revisions. The antenna's for GSM networks are more or less the same, no matter what the frequency.
ahh see thats what i was thinking... (darn it got my hopes up for nothin) I do wanna get the international but i dont have 500+ to spend and i doubt i can trade in this hd2 for the telstra one, but boy would it be nice (we have a 3g microcell and id like to be inside my house to be able to make a call, even though inside i have 2 bars sometimes and it wont call at all)
Dang it ATT. You and your messed up networks.....
Mourer09 said:
i doubt i can trade in this hd2 for the telstra one, but boy would it be nice (we have a 3g microcell and id like to be inside my house to be able to make a call, even though inside i have 2 bars sometimes and it wont call at all)
Dang it ATT. You and your messed up networks.....
Click to expand...
Click to collapse
You would be surprised. People might trade due to the fact that the US version has double the internal memory..
Well if anyone would trade please pm me I could throw in like 50-100 cash if you have something worth it please.
crisisinthecity said:
You would be surprised. People might trade due to the fact that the US version has double the internal memory..
Click to expand...
Click to collapse
Do you know how much this slows down the speed / performance of the T-Mo HD2?
I got an HD2 specifically to move away from the lag so many winmo devices have and never looked back since. I'm on ATT and it would definately be nice to have 3G.
okay so i reacently read on engadget that att bought qualcomms 700mhz band or soemthign like that. would that mean we get 3g or soemthing liek that?
Most likely 4g. (Why would they want a second 3g network) And if thats the case, there is NO hd2 anywhere which can handle 700mhz,
FIT4C said:
Do you know how much this slows down the speed / performance of the T-Mo HD2?
I got an HD2 specifically to move away from the lag so many winmo devices have and never looked back since. I'm on ATT and it would definately be nice to have 3G.
Click to expand...
Click to collapse
Buy yourself a HTC HD2 T8585, this is supported on ATT 3G network.
I got 1690 down / 2201 up
with my TMO HD2 on ATT
I got 70 up / 226 down
YMMV
qqdawg said:
Buy yourself a HTC HD2 T8585, this is supported on ATT 3G network.
I got 1690 down / 2201 up
with my TMO HD2 on ATT
I got 70 up / 226 down
YMMV
Click to expand...
Click to collapse
I would love to get my hands on a T8585, however don't have the $500+ extra available funds for one. Sometime this year I will track one down. It's a great backup phone to my Dell Streak, especially since now we can boot to Android directly.
qqdawg said:
Buy yourself a HTC HD2 T8585, this is supported on ATT 3G network.
I got 1690 down / 2201 up
with my TMO HD2 on ATT
I got 70 up / 226 down
YMMV
Click to expand...
Click to collapse
The T8585 is the model that TmoUS sells. It definitely does NOT support 3g on AT&T!
hitekredneck said:
The T8585 is the model that TmoUS sells. It definitely does NOT support 3g on AT&T!
Click to expand...
Click to collapse
No it is not, the T8585 is the Euro version of the HD2 (512 LEO)
From SamSamuel on XDA
T9193 is the telstra and uses
GSM 850/900/1800/1900, WCDMA 850/2100MHz
T8585 is the regular HD2 and uses
GSM 850/900/1800/1900, UMTS 900/2100MHz
Not sure what the model number of the tmous is (PB81120 is the model ID) and it works on
GSM850/900/1800/1900, UMTS: Band I (2100);UMTS: Band IV (AWS);UMTS: Band IV (1700/2100)
Click to expand...
Click to collapse
European/Asian/TmoUS HD2 (aka T8585) = NO workie on AT&T 3G
Telstra HD2 (aka T9193) = YES workie on AT&T 3G
There, hopefully that's better for the everyone who are still confuse of which is which.
lude219 said:
European/Asian/TmoUS HD2 (aka T8585) = NO workie on AT&T 3G
Telstra HD2 (aka T9193) = YES workie on AT&T 3G
There, hopefully that's better for the everyone who are still confuse of which is which.
Click to expand...
Click to collapse
and T 9193 is for Australia with 512rom
coldest~~~ said:
and T 9193 is for Australia with 512rom
Click to expand...
Click to collapse
Only the TmoUS HD2 has 1024 ROM. The rest has 512, yes.
Related
Tons of articles on it, but here is one anyways:
http://www.i4u.com/article24643.html
My question is: Since I already have the T-Mobile G1 unlocked and using it on Rogers, I wonder if they're either going to support the frequency of 3G that my phone supports, or if the Rogers G1 will have the different frequency. Hope they release more details soon so I know if I should sell this one to grab one that I can actually get 3G on :S
Any thoughts?
I wonder pow much they'll rape yu for data charges.
I used to live in Vancouver, and know what a rip-off data charges are up there.
http://www.newswire.ca/en/releases/archive/July2008/21/c6305.html
http://wirelessnorth.ca/2008/10/16/one-things-for-certain-about-the-g-phone/
** this says that rogers has the 1700/2100 AWS spectrum in Canada. Presumably, the Dream and Sapphire (there is no such thing as a "G1" -- this is a TMOBILE-ONLY rebranding of the Dream) launch will coincide with the enablement of this network.
Oh, you'll note how much they paid for AWS.... "In total, Rogers will pay $999,367,000."
heh heh... nearly a billion smackers, but they've got 20 MHz in all areas of the country.
no, rogers is 850/1900. so im hoping i can get it on AT&T 3G. that would be so awesome
dascientist said:
no, rogers is 850/1900. so im hoping i can get it on AT&T 3G. that would be so awesome
Click to expand...
Click to collapse
You, I'm sorry to say, are an IDIOT.
If you would actually read the whole thread, you would see that no, Rogers also owns rights to a 20 MHz spread of the 1700/2100 AWS band as well, which they will presumably be launching with the Dream. Why pay a BILLION DOLLARS for something if you're not going to USE IT?
True
So June 2nd G1 from T-Mobile can use 3G ?!
what about fido?!
I'm waiting for $30/6GB data plan
its like... almost unlimited
nothings for sure yet...
either rogers will start running the new band that t-mobile runs, or the devices have a different radio compatible to rogers' current 3g band
update: seems like the Canadian HTC Dream will run on AT&T / Rogers 3G bands:
http://www.androidincanada.ca/wp-content/uploads/2009/05/sellsheet1.jpg
t3mp3st said:
Tons of articles on it, but here is one anyways:
http://www.i4u.com/article24643.html
My question is: Since I already have the T-Mobile G1 unlocked and using it on Rogers, I wonder if they're either going to support the frequency of 3G that my phone supports, or if the Rogers G1 will have the different frequency. Hope they release more details soon so I know if I should sell this one to grab one that I can actually get 3G on :S
Any thoughts?
Click to expand...
Click to collapse
the 3G wont work with the tmobile version. different bands for 3G.
Was given the HD2 and I don't want to switch to T-Mobile here in NYC.
I have no tried to do anything other than check out the connection settings but I come to these forums and I know someone here must have a clue.
Do I need a new radio? is there something in the connections I need to change?
Anything to make it faster is greatly appreciated.
if u have the euro version it is impossible nothing u do will get 3g sorry
I have the HTC HD2 T8585.
Nothing can be done?
i'm not very up on gsm bands, but heres what the 8585 tech sheet says
GSM850, GSM900, GSM1800, GSM1900, UMTS900, UMTS2100
and heres the coverage for at&t
3G 850/1900 GSM850 GSM1900 (i think?)
which means you will get edge at 850/1900GSM but not HSDPA/3G (although edge is technically 3g too) on UMTS900/2100.
So, sadly, edge only for you m'afraid. (unless i got my bands wrong!)
You are correct samsamuel.
SaintlyNYC, If you want 3G, you need to pony up for an Australian T9193 like the rest of us
Or switch to TMobile, your choice.
If you wait 2-3 days, I might sell you mine!*
*Bah, but what would I do for a phone? Go back to my Excalibur?! It'll be like living in the dark ages. All the other WM phones have crappy resistive screens, damn [email protected]
900/2100 wont get you 3G on T-mobile US either.
His initial statement was ambiguous. "Given a HD2" "don't want to switch to Tmobile"
I'm just assuming he got one of those pre-release HD2s.
Yes, I got a pre-release from Microsoft. Love the phone and not really a big deal if I don't get the 3G. I figured if anyone could tell me whether it was possible or not it would be this group.
I just didn't expect to you dash my hopes so fast.
I am using HTC HD2 T9193 it works very good with AT&T 3G. HTC HD2 T8585 does not support AT&T 3G.
SaintlyNYC said:
Yes, I got a pre-release from Microsoft. Love the phone and not really a big deal if I don't get the 3G. I figured if anyone could tell me whether it was possible or not it would be this group.
I just didn't expect to you dash my hopes so fast.
Click to expand...
Click to collapse
We crush hopes and dreams here at XDA
Speaking of crushing hopes and dreams, no chance that special MS pre-release has WP7S, is there?
No, sadly not. I got the HD2 just at the start of February. I am hoping it will still get WM7, been hearing a lot of tales that it won't because of the # of buttons on the front. 5 buttons and not the 3 that they prefer.
We'll find out tomorrow... maybe.
BTW, what is your phones model number? Go to settings, about phone, phone identity - it should say the model number there, I think.
You can buy an HD2 from T-Mobile for $450, or you can buy a European version (I assume quad band) from Amazon for $700. My question is - what bands are supported on the T-Mobile version? Will that GSM band(s?) work on AT&T? Other than working in Europe, any other advantage in going with the $700 version?
Ideally I'd wait for an EVO 4G, but my current phone is coughing up blood, and don't know if it will make it to the summer...
DrawnToScale said:
You can buy an HD2 from T-Mobile for $450, or you can buy a European version (I assume quad band) from Amazon for $700. My question is - what bands are supported on the T-Mobile version? Will that GSM band(s?) work on AT&T? Other than working in Europe, any other advantage in going with the $700 version?
Ideally I'd wait for an EVO 4G, but my current phone is coughing up blood, and don't know if it will make it to the summer...
Click to expand...
Click to collapse
all HD2 are quadband GSM, so it will work on any GSM EDGE network
euro HD2 has 900/2100MHz 3G band
telsla HD2 has 850/2100MHz 3G band (ATT)
Tmo USA HD2 has 1700/2100MHz 3G band
EVO 4G is CDMA, only works on Verizon
The Telstra version he mentions is about $780-800USD, just fyi.
Mind you that you have been able to buy T-mobile HD2's in europe and elsewhere for quite some time. It's confusing for the owners of said version when threads get labelled like this. Specify T-mobile US in thread titles.
chribruu said:
Mind you that you have been able to buy T-mobile HD2's in europe and elsewhere for quite some time. It's confusing for the owners of said version when threads get labelled like this. Specify T-mobile US in thread titles.
Click to expand...
Click to collapse
Hey! You mean that there are other parts of the world where they have had the HD2 for some time and that the US its actually playing catch up?
Yes, but the US candidate is quite a sprinter; with more ROM and double the Flash memory, the EU version is left in a sore 2nd place even after the late start
Balerathon said:
Yes, but the US candidate is quite a sprinter; with more ROM and double the Flash memory, the EU version is left in a sore 2nd place even after the late start
Click to expand...
Click to collapse
actually...double the ROM and exactly the same RAM
Sorry if this has already been covered but a search yields no results - probably because the string is too short.
I need to know if the HD2 will operate at 3G speeds on AT&T's network. Also, is there a difference between a Tmobile branded HD2 at around $450 and an HTC OEM HD2 at $600?
Thanks!
http://forum.xda-developers.com/showthread.php?t=633404
try this thread.
http://forum.xda-developers.com/showthread.php?t=633404
BillTheCat said:
Sorry if this has already been covered but a search yields no results - probably because the string is too short.
I need to know if the HD2 will operate at 3G speeds on AT&T's network. Also, is there a difference between a Tmobile branded HD2 at around $450 and an HTC OEM HD2 at $600?
Thanks!
Click to expand...
Click to collapse
Here is the comparison Table. Check it out.
http://pdadb.net/index.php?m=pdacomparer&id1=1913&id2=2174&id3=1783&id4=2192&id5=2062&id6=2059
Owie! Wow, why is the US (850) version so much more expensive than the Tmobile version? I mean, I could guess, but I'd rather hear it from you experts. Is there no way to buy a Tmobile branded model for $450(ish) and reflash the radio to operate on 850 for 3G, or is it a hardware issue?
BillTheCat said:
Owie! Wow, why is the US (850) version so much more expensive than the Tmobile version? I mean, I could guess, but I'd rather hear it from you experts. Is there no way to buy a Tmobile branded model for $450(ish) and reflash the radio to operate on 850 for 3G, or is it a hardware issue?
Click to expand...
Click to collapse
hardware issue with bandwidth chip
BillTheCat said:
Owie! Wow, why is the US (850) version so much more expensive than the Tmobile version? I mean, I could guess, but I'd rather hear it from you experts. Is there no way to buy a Tmobile branded model for $450(ish) and reflash the radio to operate on 850 for 3G, or is it a hardware issue?
Click to expand...
Click to collapse
T-Mobile US is selling the HD2 for half the price it is anywhere else in the world. And their subsidized price is insanely low.
Being able to use AT&T's network was worth the extra $350 for me.
I know that there are two version for HD2:T version and htc version.The T version's RAM and ROM is larger than the htc's.But I wonder why the T version's price is cheaper than the htc's.And some people told me that the T version is unstable and can't install some ROM.(By the way,I'm from China.If I buy the HD2,I need brushing machine.)
I'm hesitated for a long time:which version should I buy?
So,what's your guys' opinion?
The t-mobile version is cheaper because t-mobile lowers the price for starting a 2 year service contract. The import (I'm in the US) version is purchased without a contract and is therefore unsubsidized. From what I've gathered the two variations are nearly identical in performance, build quality etc.
Thanks!This is my first oversea thread and I'm so glad that you give me a reply!
I thought that the T-Mobile HD2 was the one sold in the US and the other HD2 is the one sold in the rest of the world. Correct me if I'm wrong but they are pretty much the same except slight size and memory changes.
yeoldgreat1 said:
I thought that the T-Mobile HD2 was the one sold in the US and the other HD2 is the one sold in the rest of the world. Correct me if I'm wrong but they are pretty much the same except slight size and memory changes.
Click to expand...
Click to collapse
T-Mobile is just the branding nothing more nothing less maybe the SD card is diff but I have the T-Mobile UK version there no different then any other HD2
rexzooly said:
T-Mobile is just the branding nothing more nothing less maybe the SD card is diff but I have the T-Mobile UK version there no different then any other HD2
Click to expand...
Click to collapse
The UK one is the same as everyone's except the T-Mobile US model.
The US T-Mobile HD2 has a similar spec to the rest of the world, except it has a larger on-board memory (1Gb I believe) and an 'unlocked' larger RAM.
rp-x1 said:
The UK one is the same as everyone's except the T-Mobile US model.
The US T-Mobile HD2 has a similar spec to the rest of the world, except it has a larger on-board memory (1Gb I believe) and an 'unlocked' larger RAM.
Click to expand...
Click to collapse
Well FFFFFFFFF to them lol
rp-x1 said:
The UK one is the same as everyone's except the T-Mobile US model.
The US T-Mobile HD2 has a similar spec to the rest of the world, except it has a larger on-board memory (1Gb I believe) and an 'unlocked' larger RAM.
Click to expand...
Click to collapse
Actually that is not entirely accurate , the TMOUS has a different radio, as do some of the EU models , for instance if you want to use one on AT&T 3G in the states, you need the telstra model from OZ, as it supports the WCDMA 850 band , the US(TMO) version only supports 1700/2100 WCDMA for 3G.
Most all will work on all Providers , using standard GSM/EDGE freqs but not on 3G.
EDIT:
It seems though AT&T is cracking down on NON-AT&T devices though ....
watcher64 said:
Actually that is not entirely accurate , the TMOUS has a different radio, as do some of the EU models , for instance if you want to use one on AT&T 3G in the states, you need the telstra model from OZ, as it supports the WCDMA 850 band , the US(TMO) version only supports 1700/2100 WCDMA for 3G.
Most all will work on all Providers , using standard GSM/EDGE freqs but not on 3G.
Click to expand...
Click to collapse
Thanks for the details maybe I should get my hands on a US one for a hands on check