[Q] Desire HD for AT&T (850 band)?? - Desire HD General

Are there any known plans to make a version of this phone that's compatible with AT&T's 3G network bands??

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Touch HD 3g in US with AT&T possible?

Is 3G possible with At&T? or only 2g?
Not currently but the new Touch HD announced by Telstra and HTC yesterday could provide US users with a 3G option. It should have 850mhz frequency which should be compatible with some of AT&T's 3G network but not all. You would have to see if your area uses AT&T's 850 or 1900 frequency for 3G. The current touch hd won't work for 3G in the US.
As mentioned NO 3G only EDGE with the current HD. Here's the main thread discussion on the new Telstra HD: http://forum.xda-developers.com/showthread.php?t=471562

HTC Tytn II using 3G on AT&T's Network

Hello everyone,
This is my first post and I was hoping you all may be able to help me wiht a concept I have for the Tytn II. Currently I am purchasing the Tytn II from Cincinnati Bell. This phone is identical to the AT&T Tilt. Its not the Euro version with the second camera. Cincinnati bell has informed me that this phone will not work on their 3G network because they are going to be using the 1700/2100 bands and the phone does not support the 1700 as it needs to support both bands. Athough AT&T states this phones works at 3G on their 1900 ban network.
So heres where it gets good. Cincinnati bell uses AT&T's network for roaming. Is it possible to use this phone at the 1900 ban on At&T network when i am raoming and receive the 3G speeds (providing I have a 3G sim card). As well is it possible to force the phone to use the AT&T network while I am here in cincinnati,OH instead of the Cincinnati bell network.

HTC Magic (Tim version) on AT&T 3G network?

Please, is it possible to make the HTC magic (Tim version) work on AT&T 3G network? Right now, it can only work on EDGE...
Thanks!
I goolged around. Seems it is a hardware issue making European version Magic cannot work on AT&T 3G...
You should have gotten a Rogers HTC Magic from Canada. It can run perfectly on AT&T's 3G network.

[Q] 3G (1700mhz) mod for T-mobile U.S.?

so i got this fantastic HTC Touch HD (unlocked) to replace my beat up sidekick. anyway i want to know if there's any way to use this phone on t-mobile's 3G network? what a shame it'd be if i cant.
If you have a T8282 (BLAC100) then it's not possible, the hardware isn't there to support US 3G bands. The T8285 (BLAC120) should work fine though.
Not on T-Mobile though, 8285 is for 850/1900 3G bands (AT&T) and you need 1700 for T-Mobile

[Q] htc surround not 3g with t-mobile

I have am htc surround unlocked from at&t and using it currently with t-mobile everything works fine however the 3g is not working is there any configuration for the apn our something that I need to do to make it work please somebody help me.....
No. The hardware is different.
T mobile and at&t use different frequency for 3g data.
Unfortunately surround only support at&t frequency so u can't use 3g on t mobile network.
if i not mistaken the htc surround supports lte 4g.... so you might be able to
im not sure you might have to wait for a update
MackDaddyC said:
if i not mistaken the htc surround supports lte 4g.... so you might be able to
im not sure you might have to wait for a update
Click to expand...
Click to collapse
Not true. The Surround does NOT support 4G LTE.
In reply to the OP, the Surround isn't getting 3G on T-Mobile because it only supports AT&T's 3G bands. Carriers do that so you cannot use the phone elsewhere if you try to weasel out of your contract. If you bought it off-contract, you should have stuck with AT&T because there is no configuration or any setting that exists that will get the Surround to use T-Mobile's 3G.
If you need 3G, you should probably consider returning the phone if you still have the chance and go get the HD7 instead.
Hardware
The Data bands used for AT&T are different yes, but this phone is a data quad band phone, so the antenna should be able to pick up the signal for T-Mobile or AT&T. It should be no more than a configuration issue. Both the HD 7 for T-Mobile and the Surround for AT&T have the same radio for data reception (/us/products/compare/120-121?view=1-1&sort=0&filters=0-11-0). Add www and htc and dotcom to the link.
Nope.
ATT offers UMTS or 3G using 850mhz(the old TDMA band) and 1900mhz.
While T-mobile offers HSDPA (technically 3.5g part of the UMTS specification) using 1700MHz for uplink and 2100MHz downlink.
The Surround would have to be 850/1700/1900/2100 3G and 850/1900 GSM (voice) to work on T-Mo's 3G.

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