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Hi
I stuck my neck out and purchased a Touch HD telstra version from a company in australia. It just came in today and it appears to be working well on the 3G band of ATT. I have the H in the signal bar and DSL report speed test 934 kbs. More to follow.
see this: http://www.megaupload.com/?d=NPV2LJDG
This is awesome news...please keep us updated and also tell us where you got it from?
Thanks.
bjrmd said:
Hi
I stuck my neck out and purchased a Touch HD telstra version from a company in australia. It just came in today and it appears to be working well on the 3G band of ATT. I have the H in the signal bar and DSL report speed test 934 kbs. More to follow.
Click to expand...
Click to collapse
WOW, thats compared to my E connection in Chicago that tested at 150K and WIFI at 1100K.
Ouch, I might shed a tear. I'm definitally jelous of 3g in US. Stuck on roughly 230kbps on E with tmobile. Though paying $10 for unlimited data and 200 msgs is nice compared to the move to At&t. Im =( nonetheless, but congrats to you
BTW, anyone know if its a change in hardware or software (like in diamond) that adds the frequency?
bjrmd said:
Hi
I stuck my neck out and purchased a Touch HD telstra version from a company in australia. It just came in today and it appears to be working well on the 3G band of ATT. I have the H in the signal bar and DSL report speed test 934 kbs. More to follow.
Click to expand...
Click to collapse
Just done the same thing here. Great to hear that you are having success!! thanks for letting us know.
Have you put a new ROM on the thing yet Dutty or something else?
Is the telstra customisation as bad as we have been hearing?
Cheers,
Awesome, please let us know where you got it from. Also, if you don't mind, how much was it with shipping and how long did it take to get.
x5-rwk said:
Awesome, please let us know where you got it from. Also, if you don't mind, how much was it with shipping and how long did it take to get.
Click to expand...
Click to collapse
You have been quicker than me, I was writing the exact same questions
But yes guys, I really want to know in what store you found it.
Thanks !
Ebay:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&ssPageName=ADME:B:EOIBSAA:US:11&Item=280315368392
Took 4 days, should have been 3 but customs held it up--needed a form filled out that I was using it for "testing" (I guess because its not FCC approved). Seller was great.
So far so good, flashed it and testing out some new roms.
3G works fine.
Getting used to the big screen and few buttons(had a polaris).
Damn, this is some amazing news if true....
I just recently got an Xperia X1a, but the HTC Touch HD was definitely my first choice. But the 3G thing was a deal-breaker for me since I really wanted something that was speedy on the browsing.
I absolutely love my X1 but this is making me wonder if I should return it....
MAN, I hope this is just a myth, lol!
How sweet it is
$826 plus shipping is a considerable amount. It doesn't surprise me that the OP is able to get 3G. I wonder where the user is located. It might make a difference if everybody will get 3G in the United States. I wish there was some kind of map / key that would identify where the 850 / 1900 3G signals were at in North America. Congrats on having 3G with the HD in the United States. I am quite jealous I must say.
I am in north Florida.
BTW saw some posts about bluetooth skips.
Using Dutty 1.9 rom and pocket player, perfect sound with a 64 bitpool even with internet usage. Kept the stock radio.
AllTheWay said:
$826 plus shipping is a considerable amount. It doesn't surprise me that the OP is able to get 3G. I wonder where the user is located. It might make a difference if everybody will get 3G in the United States. I wish there was some kind of map / key that would identify where the 850 / 1900 3G signals were at in North America. Congrats on having 3G with the HD in the United States. I am quite jealous I must say.
Click to expand...
Click to collapse
Really? That doesn't surprise you? All the threads I've read in the past were talking about how disappointing it was to not get 3G in the U.S. with the HD. And how it was most likely a hardware issue (although that is still up for debate). Most people were even skeptical about the Aussie version.
I think if you were to hit up an AT&T wireless store, they could show you which areas have the 3G signals, they did for me. Although I'm not sure if they'd be able to specify if it's an 850 signal area.
markgencorelli said:
Really? That doesn't surprise you? All the threads I've read in the past were talking about how disappointing it was to not get 3G in the U.S. with the HD. And how it was most likely a hardware issue (although that is still up for debate). Most people were even skeptical about the Aussie version.
I think if you were to hit up an AT&T wireless store, they could show you which areas have the 3G signals, they did for me. Although I'm not sure if they'd be able to specify if it's an 850 signal area.
Click to expand...
Click to collapse
Exactly. I know where all the 3G areas are in the US they just won't be able to tell me on what frequency.
The Xperia works on the 1900mhz signal only and gets 3G in some areas. That's why I was not surprised.
AllTheWay said:
Exactly. I know where all the 3G areas are in the US they just won't be able to tell me on what frequency.
The Xperia works on the 1900mhz signal only and gets 3G in some areas. That's why I was not surprised.
Click to expand...
Click to collapse
Ahh, I see I see.
I got a big fat H with a box around it on my Xperia (HSDPA I think), which I was told by another poster is actually a lil faster than 3G.
So does that mean my area has only 1900mhz signal? Or not necessarily...
I'm really considering returning my Xperia now hahahah
Anyone can tell what make the different from the T8285 and T8282, both of them have the same hardware.....how can the T8285 support 3G, i use my T8282 to flash the telstra rom but still cant get the 3G even the model name have changed to T8285. I still dont believe that is the hardware issue
k6076199 said:
Anyone can tell what make the different from the T8285 and T8282, both of them have the same hardware.....how can the T8285 support 3G, i use my T8282 to flash the telstra rom but still cant get the 3G even the model name have changed to T8285. I still dont believe that is the hardware issue
Click to expand...
Click to collapse
You've put the Telstra software on a T8282, and don't get 3G.
Yet you still don't think it's hardware!?
Just ordered mine...oh man, 4 days is too long.....why is it only 4:00AM in Australia.....comeon ship it now already
From a differnt thread on the 850-1900 discussion:
http://cellularmap.net/att_850_1900.shtml
AllTheWay said:
$826 plus shipping is a considerable amount. It doesn't surprise me that the OP is able to get 3G. I wonder where the user is located. It might make a difference if everybody will get 3G in the United States. I wish there was some kind of map / key that would identify where the 850 / 1900 3G signals were at in North America. Congrats on having 3G with the HD in the United States. I am quite jealous I must say.
Click to expand...
Click to collapse
Telstra T8285 fro EBAY AU Unlocked?
I have been tempted to order it on Ebay as well. It will be my first purchase on Ebay.... From what I can see the Telstra T8285 is the one I want and It says it's unlocked. I plan to pop my AT&T SIM card in and expect it to work on the 850 3g band. Am I missing anything else?? I'm pretty sure the folks who have already bought one have got it from the same source in AU. If I get the nerve to do this I will be selling my T8282.
Thanks
I was looking at the Nexus One teardown here. http://www.ifixit.com/Teardown/Nexus-One/1654/2
Interesting to note that the RTR6285 RF transceiver does indeed support Band 5 UMTS, which I think is AT&T, according to a cached press release here. http://74.125.153.132/search?q=cach...l+RTR6285+umts+bands&cd=1&hl=en&ct=clnk&gl=us
Note it says...
North American triple-band UMTS (bands 2, 4, 5)
Japanese triple-band UMTS (bands 1, 6, 9)
European, Chinese and rest-of-world triple-band UMTS (bands 1, 3, 8)
Also... the power amplifier SKY77336, according to this document... http://docs.google.com/viewer?url=http://www.skyworksinc.com/uploads/documents/200780E.pdf
Does support the GSM850 band. Isn't that AT&T?
So what is really preventing the Nexus One from running on AT&T? Did they just not "bother" to certify it with the FCC because T-Mobile is their launch partner?
This could mean then the radio software, or some other configuration option in the firmware simply has AT&T 3G disabled.
I'll let you guys debate this, but I can't see any hardware reason why this phone couldn't work on AT&T 3G, with proper software/hacking of course.
-James
Actually the real question is, why didn't they certify with the FCC for AT&T 3G? My only idea is that T-Mobile was the launch partner, but the hardware can do AT&T 3G technically, it's just not certified and enabled.
No reason they couldn't certify and enable it later.
And I have to say, I would have no trouble going to T-Mobile, but in Salt Lake City, AT&T coverage is far superior and so are the 3G speed tests. There are many locations my T-Mobile friends can't get make calls to save their life. I hear T-Mobile is much better in other cities.
-James
Doesn't AT&T use both 850 and 1900 for 3G? Does this phone have 1900?
jimbo831 said:
Doesn't AT&T use both 850 and 1900 for 3G? Does this phone have 1900?
Click to expand...
Click to collapse
Believe the transceiver and amplifier support both.
I want to get people digging around on this.
-James
Very interesting stuff.
I bet a community could get a pot together and have a prize for whomever can get the n1 working on att first, assuming it actually will work
Thanks for digging up this info, I was actually in the process of starting to research this myself for when I grew tired of living on edge.
Does support the GSM850 band. Isn't that AT&T?
Click to expand...
Click to collapse
You've already answered your own question here, GSM is not UMTS.
I'm in the smae boat btw, Telstra in Aus use 850UMTS and I know how painful it can be to have 2G access in most places.
YorikR32 said:
You've already answered your own question here, GSM is not UMTS.
I'm in the smae boat btw, Telstra in Aus use 850UMTS and I know how painful it can be to have 2G access in most places.
Click to expand...
Click to collapse
Well technically UMTS is a GSM standard, could be the same thing. Same frequencies certainly.
I was just checking the brochure for the http://www.rfmw.com/data/BRO254-08B.pdf
No where does it make mention of UMTS, like say... T-Mobile's AWS... but it does specifically have the correct frequencies listed for both T-Mobile AWS and AT&T 3G.
I'm going to make the assumption that this indicates it works with UMTS is both bands since it doesn't mention UMTS specifically at all, yet it does work on T-Mobile AWS.
James I love you man! tell me there's a way to "jailbreak" this thing.... what kind of people do we need? someone has to be willing to help with this. Oh why oh why am i only a MBA.... I need a tech degree of some kind!
I don't think it has to do with the FCC. Though we are all in love with the nexus one... remember that google and apple are nearly HALF of the same executive board. They don't want to compete with the golden goose that keeps thier stock portfolio's up that much.
We just need to find out how to activate/change which airwaves this thing is listening too and THEN we will have the first truely unlocked machine!
subscribing to this thread for an outcome.
I've been doing more reading and it seems this isn't the first phone with hardware disabled. I haven't found anything yet on if anyone has made the change yet :+\
Here we go, the Blackstone all over again .
~~Tito~~ said:
Here we go, the Blackstone all over again .
Click to expand...
Click to collapse
Well, maybe. The Blackstone has a hardware limitation for the US 3G frequencies. There have been phones in the past that had software limitations that were overcome with a hack. So if the Nexus has the hardware capabilities to do ATT 3G frequencies there is a good chance that someone will figure out how to unlock it.
uh...wow. Yeah, I'll be watching this thread.
Matterhorn said:
Well, maybe. The Blackstone has a hardware limitation for the US 3G frequencies. There have been phones in the past that had software limitations that were overcome with a hack. So if the Nexus has the hardware capabilities to do ATT 3G frequencies there is a good chance that someone will figure out how to unlock it.
Click to expand...
Click to collapse
Which phones? Do you have any links we can read so we can start looking for similar solutions?
I found this link to the Diamond on XDA which they supposedly change to 3g at&t but I have read the whole thing it's long.
http://forum.xda-developers.com/showthread.php?t=432770
I'm still looking for answers! I'm just not smart enough to "create" the answer. I have hope that a future rom will help us but not for a while. For now I'll keep researching.
P.S. my phone comes tommorrow!!!!!!!!11 I'm so excited!!!!!!!!!!!111111
The radio chip supports all the UMTS bands it but unfortunately the UMTS power amplifiers (eg. http://www.skyworksinc.com/Product.aspx?ProductID=597) are NOT in the chip. Like the G1 it probably only has amplifiers for 900/1700/2100.
The quadband power amplifier only supports GPRS/EDGE: http://www.skyworksinc.com/Product.aspx?ProductID=437
Looking at the chip diagram here (http://s2.guide-images.ifixit.com/igi/ZhrRALhPFhWyLGKC.large) the two chips next to the SKY77191 look awfully like power amplifiers as well.. if so, conveniently for 900/2100
coolbho3000 said:
The radio chip supports all the UMTS bands it but unfortunately the UMTS power amplifiers (eg. http://www.skyworksinc.com/Product.aspx?ProductID=597) are NOT in the chip. Like the G1 it probably only has amplifiers for 900/1700/2100.
The quadband power amplifier only supports GPRS/EDGE: http://www.skyworksinc.com/Product.aspx?ProductID=437
Looking at the chip diagram here (http://s2.guide-images.ifixit.com/igi/ZhrRALhPFhWyLGKC.large) the two chips next to the SKY77191 look awfully like power amplifiers as well.. if so, conveniently for 900/2100
Click to expand...
Click to collapse
Killjoy
jk
Wii60 said:
Killjoy
jk
Click to expand...
Click to collapse
Don't get me wrong, I wish this worked on AT&T (points at logo). Guess I'm EDGE-only until my contract expires.
Just wish all carriers would have stuck to one standard
whoever helps figure this out will definitely be getting some donations from me!! i have att and no purpose of buying a N1 without 3g...
I had the HD and now have the Nexus 1 but cannot resist coming back to my beloved Chefs and Winmo custimizations. I was wondering if anyone can give me insight on if its worth to pay the extra couple hundred dollars for the Telstra version with 3G and if it is a greatly noticeable difference of speed? I surf the web some and like to have 3G just to have it because I know its faster and better than edge but If theres no reason to shovel out the extra couple hundred dollars just to have a lil bit more speed I would go with the T8585. Hope someone can give me an idea if there would be a major difference between the 2 as I would be using it on ATT. Thanks
HTC HD2 T8585 vs. T9193
Thanks for posing the question regarding the differences in the two phones. I have a T9193 that I paid more to obtain due to its AT&T 3G capabilities. Unfortunately, I dont know the answer to that question but would be interested in knowing the opinion of others. The obvious answer is that 3G is faster than the edge technology. I flashed a different ROM to my device and it now displays under phone identity: Model No. HTC HD2 T8585. I am sure that this change in identity does not change the basic mechanics of the phone or its 3G capabilities (at least not that I have noticed). Anyone who has thoughts on this please advise. Thanks
http://pocketnow.com/thought/t-mobile-hd2-vs-htc-hd2-comparison
Some size differences above, which I found interesting. No speed comparisons though
Schooleydoo said:
http://pocketnow.com/thought/t-mobile-hd2-vs-htc-hd2-comparison
Some size differences above, which I found interesting. No speed comparisons though
Click to expand...
Click to collapse
The TMobile phone is not the T9193, there is only one difference between the T8585 & T9193 and that's the WCDMA/HSPA bands.
Be sure to check if your area has 850MHz coverage prior to making the purchase. I have the T9193 here in arizona, but all we have is 1900mhz 3G access here. Thankfully, the AT&T reps have gotten word that they will be rolling out 850mhz towers within the next 4 months, but still...it hasn't happened yet.
The 9193 sprinkles fairy dust and has the ability to call upon unicorns, clearly making it superior, in addition to its superior ATT and NextG capabilities.
Edge is a lot slower than HSPA.
Edge only
I live in Idaho, Small town too. We don't have 3g.I've had several nice phones, including htc hd, now hd2. I do all the things with edge, but I realize it's just slower, but I have no complaints. It seems pretty fast because of the processor. I don't travel much,edge works fine where I go.I seem to get wifi connections alot where I hang out?I use youtube, web surf little, skyfire,text, mms,I love it, but, I've never had 3g!! But a matter of a few seconds in my life, doesn't really matter. Just need to decide if those few secs matter to you? Just Quig's opinion,,
Don't know about you guys, but I like the tmo's hd2 keypad (the green and red call and power on/end call buttons) more than the eu version. I wonder why they did that one with a different backlight..
MartinXDA said:
I wonder why they did that one with a different backlight..
Click to expand...
Click to collapse
It's probably not a different backlight, it's probably just a different key cover that has a green/red translucent filter on it...
well true...
lquigley said:
I live in Idaho, Small town too. We don't have 3g.I've had several nice phones, including htc hd, now hd2. I do all the things with edge, but I realize it's just slower, but I have no complaints. It seems pretty fast because of the processor. I don't travel much,edge works fine where I go.I seem to get wifi connections alot where I hang out?I use youtube, web surf little, skyfire,text, mms,I love it, but, I've never had 3g!! But a matter of a few seconds in my life, doesn't really matter. Just need to decide if those few secs matter to you? Just Quig's opinion,,
Click to expand...
Click to collapse
true but i do a lot of tethering when i travel. without 3g i don't get the live stream that is sometimes important to my work. i just got 8585 and love this phone. but huge disappointment with 3g...
azalex86 said:
Be sure to check if your area has 850MHz coverage prior to making the purchase. I have the T9193 here in arizona, but all we have is 1900mhz 3G access here. Thankfully, the AT&T reps have gotten word that they will be rolling out 850mhz towers within the next 4 months, but still...it hasn't happened yet.
Click to expand...
Click to collapse
There's a map for that
http://www.cellularmaps.com/att_850_1900.shtml
Delicious 850mhz 3G/HDSPA in both Provo, Utah and North Brunswick, New Jersey
Any new towers will be 850mhz and supposedly they are working to convert some 1900 towers to 850. Not sure how true the last bit is, but the first bit is true.
As for my t9193, it is just as good as a t8585 just with ATT 3G. No difference mate, no worries on roms or SPL.
(Although, the current release of hardspl did not program the Telstra MID into the list, so it wont let you flash it yet, but it should work!)
we need a update asap i can not keep 3g or even edge at all htc must know about this i will be calling them i hope others will follow
if you're using a old sim card you might want to get a new one. a rep told me that they got new sims that might help.
I have 2 new sim cards in both my HD2 phones. Same issue. I have installed s2u2 and on the slide unlock screen I see it switch from H to 3G over and over all day no matter where I am. I really do think something is seriously wrong with these phones and/or the nework. Does anyone else on T-Mobile with s2u2 installed see the same thing. We need to gather enough information to send to T-Mobile and HTC so they will see how serious this issue is. Thank You! )
kevev said:
I have 2 new sim cards in both my HD2 phones. Same issue. I have installed s2u2 and on the slide unlock screen I see it switch from H to 3G over and over all day no matter where I am. I really do think something is seriously wrong with these phones and/or the nework. Does anyone else on T-Mobile with s2u2 installed see the same thing. We need to gather enough information to send to T-Mobile and HTC so they will see how serious this issue is. Thank You! )
Click to expand...
Click to collapse
Switching from H to 3G is good... you're getting great speeds then. I can only get edge inside my house. It's not the HD2 that the problem... it's t-mobiles coverage. the 1700mhz band does not go through walls or barriers nearly as well as at&ts 850mhz band.
I've been email HTC about my issues with my phone and the only thing they really say is to remove any 3rd party application and soft reset.. And they also say to contact T-mobile with any further issues.. Like they know how to fix it?
zarathustrax said:
Switching from H to 3G is good... you're getting great speeds then. I can only get edge inside my house. It's not the HD2 that the problem... it's t-mobiles coverage. the 1700mhz band does not go through walls or barriers nearly as well as at&ts 850mhz band.
Click to expand...
Click to collapse
Oh that sucks. Do you at least have wifi @ home?
That is true about the 1700 Mhz, but AT&T 3G is mostly 1900Mhz and 850Mhz in very few places so I would expect them to have the same issue but they don't. I think T-Mobile may have the tower spread apart farther than ATT. But who knows.
calling tmobile is useless I tried that 3 times already and I only get excuses like the tower its down or im in a weird area so im just confused I know the network suck s but not this bad.
ihearttreo said:
if you're using a old sim card you might want to get a new one. a rep told me that they got new sims that might help.
Click to expand...
Click to collapse
Only idiot thinks it is related SIM.
TMO CSRs are famous dumbs!
My HTC Dream gets better reception than the HTC HD2 in areas of weak reception (1-3bars). The HTC Dream got a radio update a month ago that helped it improve reception. I'm hoping for a similar radio update to the HD2.
I don't care too much about poor reception, as long as it can maintain the 1-2bars and not drop the call. The HTC Dream is better than the HD2 at maintaining a weak reception. I get full bars and 3G outside, while indoors in my 'fortress' I only get 1-2 bars.
I called and told them about the bad reception on the HD2 (compared to the HTC Dream. I was to try to manually set the network to check. I wasn't at the same location so I couldn't try during the call. I tried later and the reception didn't seem to improve. I'll be calling back and seeing if a request/problem report could be submitted for their techs.
kevev said:
Oh that sucks. Do you at least have wifi @ home?
That is true about the 1700 Mhz, but AT&T 3G is mostly 1900Mhz and 850Mhz in very few places so I would expect them to have the same issue but they don't. I think T-Mobile may have the tower spread apart farther than ATT. But who knows.
Click to expand...
Click to collapse
Actually at&t have been moving all there 3g from 1900 to 850, and I beleive at this point they are mostly 850mhz. They plan to switch it all to 850 eventually.
zarathustrax said:
Switching from H to 3G is good... you're getting great speeds then. I can only get edge inside my house. It's not the HD2 that the problem... it's t-mobiles coverage. the 1700mhz band does not go through walls or barriers nearly as well as at&ts 850mhz band.
Click to expand...
Click to collapse
Same issue here. Edge in the house. As soon as I go outside, I'm on 3G/H.
Hello,
Maybe you guys can help me clarify something for me. I want to buy this phone and get the unlocked version. Only problem is no matter which seller I'm looking at on Ebay they're all saying "3G Not compatible in the U.S" which means I'll be running at 2G and I actually considered this ok because i really want to this phone. But I want to know why it won't work? If it's a GSM phone and it would work with AT&T & T-Mobile my local carriers why wouldn't it give me 3G speeds?
I really want this phone because I wanted something different, something you won't see out here much. Plus I wanted to get back to Sony phones after playing with other manufactors. Can anyone help clear this is up for me?
Nishua said:
But I want to know why it won't work? If it's a GSM phone and it would work with AT&T & T-Mobile my local carriers why wouldn't it give me 3G speeds?
Click to expand...
Click to collapse
For the same reason that a T-Mobile US GSM handset won't give you 3G on AT&T - it's the wrong frequency.
Most of the world uses the 2100MHz band for UMTS/HSDPA but AT&T are awkward and use 1900MHz and 850MHz and T-Mobile are even more awkward and use the extremely unusual 1700MHz band.
Nishua said:
Hello,
Maybe you guys can help me clarify something for me. I want to buy this phone and get the unlocked version. Only problem is no matter which seller I'm looking at on Ebay they're all saying "3G Not compatible in the U.S" which means I'll be running at 2G and I actually considered this ok because i really want to this phone. But I want to know why it won't work? If it's a GSM phone and it would work with AT&T & T-Mobile my local carriers why wouldn't it give me 3G speeds?
I really want this phone because I wanted something different, something you won't see out here much. Plus I wanted to get back to Sony phones after playing with other manufactors. Can anyone help clear this is up for me?
Click to expand...
Click to collapse
LT15i = T-Mobile 3G bands
LT15a = AT&T 3G bands
augie7107 said:
LT15i = T-Mobile 3G bands
Click to expand...
Click to collapse
No, the LT15i doesn't support the AWS (1700MHz) band so it won't support T-Mobile US's 3G service.
Step666 said:
No, the LT15i doesn't support the AWS (1700MHz) band so it won't support T-Mobile US's 3G service.
Click to expand...
Click to collapse
T-Mobile also uses 2100
Hmm I thought that tmobile U. S used the same 3G bands as europe. So in theory it should work right?
Sent from my GT-I9000 using XDA Premium App
augie7107 said:
T-Mobile also uses 2100
Click to expand...
Click to collapse
No they don't.
T-Mobile's 3G uses a ~1700MHz frequency to upload and a ~2100MHz frequency to download, this is the '1700MHz band', also referred to as 'AWS' or 'UMTS band IV'.
Compare this to the '2100MHz band' ( or 'UMTS band I') which uses a frequency of ~1900MHz to upload and a frequency of ~2100MHz to download. The two are not cross-compatible.
The LT15i supports the 2100MHz band but not the 1700MHz band, so no 3G on T-Mobile.
If you don't believe me, feel free to read this thread on T-Mobile US's own site.
People with handsets that only support the 2100MHz band don't get 3G service.
Hero Yu said:
Hmm I thought that tmobile U. S used the same 3G bands as europe.
Click to expand...
Click to collapse
They don't.
[No they don't.
T-Mobile's 3G uses a ~1700MHz frequency to upload and a ~2100MHz frequency to download, this is the '1700MHz band', also referred to as 'AWS' or 'UMTS band IV'.]
Thanks for the detailed explanation.
You obviously know more about this than I do.
I do believe your first two statements are contradictory.
You state "no they don't" and then go on to say "they use a 2100 to download"
All other SE "I" version phones work with T-Mobile 3G, correct?
augie7107 said:
[No they don't.
T-Mobile's 3G uses a ~1700MHz frequency to upload and a ~2100MHz frequency to download, this is the '1700MHz band', also referred to as 'AWS' or 'UMTS band IV'.]
Thanks for the detailed explanation.
You obviously know more about this than I do.
I do believe your first two statements are contradictory.
You state "no they don't" and then go on to say "they use a 2100 to download"
All other SE "I" version phones work with T-Mobile 3G, correct?
Click to expand...
Click to collapse
They never make anything the same. They may work or they may not. You should pay attention to every details of any product you are buying, no general rules existing with any product specially gadgets which they get a new technology everyday.
augie7107 said:
I do believe your first two statements are contradictory.
Click to expand...
Click to collapse
I can see why you might think that but it's not contradictory because band and frequency are not the same.
If we look at the specs for the Arc, it says says '3G Network HSDPA 900 / 2100' (that's the LT15i, the line below is the frequencies supported by the LT15a).
Those numbers refer to UMTS bands I and VIII as listed here.
As you can see from the page on Wikipedia, every band operates on two different frequencies, one for uploading and one for downloading. This is to avoid interference.
So even though the download frequencies of the 1700 band and the 2100 band are the same, the two bands are not compatible as the upload frequencies are different (sorry for all the underlining, it just makes it easier to explain...).
It would be a lot simpler if each band's upload and download frequencies were distinct, it would be far less confusing but I guess there's some sort of reason why things are the way they are...
augie7107 said:
All other SE "I" version phones work with T-Mobile 3G, correct?
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I don't think so, not unless they say they support the 1700/AWS band.
Basically, unless a phone's specs say it supports 1700MHz for 3G (or mentions AWS support, which means the same thing), it should be assumed that it won't give you 3G on T-Mobile US.
Though this all starts to become even more confusing when local roaming agreements are factored in but I don't really know anything about that to be honest.
Nishua said:
Hello,
Maybe you guys can help me clarify something for me. I want to buy this phone and get the unlocked version. Only problem is no matter which seller I'm looking at on Ebay they're all saying "3G Not compatible in the U.S" which means I'll be running at 2G and I actually considered this ok because i really want to this phone. But I want to know why it won't work? If it's a GSM phone and it would work with AT&T & T-Mobile my local carriers why wouldn't it give me 3G speeds?
I really want this phone because I wanted something different, something you won't see out here much. Plus I wanted to get back to Sony phones after playing with other manufactors. Can anyone help clear this is up for me?
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In short:
LT15i: 2G will work just fine on both AT&T and T-Mobile. 3G will NOT work on either network.
LT15a: 2G will work just fine on both AT&T and T-Mobile. 3G will ONLY work with AT&T.
so my concerns is..if i am using T Mobile right now...it means I am doomed right? Even the new T mobile 4G(whatever they wanna call it) wont get me the right internet speed to blast the phone?
felixlaw11114 said:
so my concerns is..if i am using T Mobile right now...it means I am doomed right? Even the new T mobile 4G(whatever they wanna call it) wont get me the right internet speed to blast the phone?
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att bought tmobile couple of weeks back , so ask if they are sharing the 3G frequencies now
alsaqr said:
att bought tmobile couple of weeks back , so ask if they are sharing the 3G frequencies now
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I am not sure that went completely though. It is still hanging with no solution...
Nimche said:
I am not sure that went completely though. It is still hanging with no solution...
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if i assume they are not sharing frequency..the only way for me to enjoy 3G/4G internet is to use AT&T?
felixlaw11114 said:
so my concerns is..if i am using T Mobile right now...it means I am doomed right? Even the new T mobile 4G(whatever they wanna call it) wont get me the right internet speed to blast the phone?
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'4G' has nothing to do with any of this - that's just speed, it doesn't change which band T-Mobile use.
alsaqr said:
att bought tmobile couple of weeks back , so ask if they are sharing the 3G frequencies now
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They're not.
The merger hasn't even been approved yet, let alone any sort of migration of customers.
If the merger is approved, you're talking anywhere from 1 year to 3 before you see any real-world differences like the ones you're suggesting.
...um...I am doom-ed then..
I read their press and their said the deal wont close until the end of the year
Assuming the regulators allow it to go ahead at all.
There are, rightly so, concerns about a single national GSM-based network and the knock-on effect that would have on competition.
seems like I got a smart phone that not gonna be that smart
augie7107 said:
T-Mobile also uses 2100
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tmo uses 1700 downlink and 2100 uplink. phone must support both freqs to get 3G. LT15i does not support 1700, hence 3G will not work.