Database Users

3G Networks hardware LOCKING to each carrier by HTC

Among those of you with a deap knowledge of the inner working of HTC phone for 3G networks.
Is HTC doing something to phones for each carrier to lock the phone to a specific carriers 3G network and no other.
I'm asking because I was talking with a freind of mine who was given a HD2 as a part of a promotion for use on AT&T 3G network (850/2100). He uses T-Mobile and tried to get it to work with his T-Mobile SIM with no success. He also told me he had a conversation with someone from HTC that told him that he would no beable to get his HD2 to work on T-Mobile because the hardware will not work with T-Mobiles 3G network (1700/2100).
If this is the case does anyone know if it changable, is it a Firmware issue that can be changed or is it like hard wired physically?
Then the question is if we are buying these phone, some through contracts others outright, do we want to told whos service we have to use!!
Lets have some good discussion...

there are billions of threads on this.
3g is radio/hardware dependent. he'll unfortunately be stuck on EDGE.

He will have no issues using the phone with T-mobile usa. He will not get 3G because of the bands. He will just have edge. But calls, mms, text, email, and internet will all function properly.

Clarify this please
I bought my HTC HD2 in USA (unlocked) and here in Peru, where I live, I cannot get it to work with 3G. If I lived in USA, is there a way to know with what carrier I would get 3G ?

alejo1575 said:
I bought my HTC HD2 in USA (unlocked) and here in Peru, where I live, I cannot get it to work with 3G. If I lived in USA, is there a way to know with what carrier I would get 3G ?
Click to expand...
Click to collapse
So you are on Claro in Peru?
For 3G you need a phone with 3G 1900 support. If it is the T-Mobile version, that would have 3G on 1700/2100 bands which would be no good. If you got an AT&T handset (850/1900) it would work for 3G for you.
You need to understand what 3G support your version of the phone has. For example mine (Telstra Australia) is 850/2100 - which would not be able to pick up 3G in your network - however it works excellent with Telstra (850) in Australia and currently working well with StarHub (2100) in Singapore.
Your phone is quad band - but that is GSM quadband not 3G - it is 3G dual band and that is what is important for your connection.
***
Edit:
See http://en.wikipedia.org/wiki/List_of_UMTS_networks for list of 3G networks...

Yeah ...bad news
tallmantim said:
So you are on Claro in Peru?
For 3G you need a phone with 3G 1900 support. If it is the T-Mobile version, that would have 3G on 1700/2100 bands which would be no good. If you got an AT&T handset (850/1900) it would work for 3G for you.
You need to understand what 3G support your version of the phone has. For example mine (Telstra Australia) is 850/2100 - which would not be able to pick up 3G in your network - however it works excellent with Telstra (850) in Australia and currently working well with StarHub (2100) in Singapore.
Your phone is quad band - but that is GSM quadband not 3G - it is 3G dual band and that is what is important for your connection.
***
Edit:
See http://en.wikipedia.org/wiki/List_of_UMTS_networks for list of 3G networks...
Click to expand...
Click to collapse
Hi tallmantim ....
Thanks for your response. Yeah, today I did my homework and found that my HD2 has UMTS (HSDPA) 900 - 2100 bands, a fact that is not good because Claro and Movistar in Peru operated the 850 - 1900 bands for 3G.
Question: is there a HD2 version with 850 - 1900 band ????

alejo1575 said:
Hi tallmantim ....
Thanks for your response. Yeah, today I did my homework and found that my HD2 has UMTS (HSDPA) 900 - 2100 bands, a fact that is not good because Claro and Movistar in Peru operated the 850 - 1900 bands for 3G.
Question: is there a HD2 version with 850 - 1900 band ????
Click to expand...
Click to collapse
No, but the Telstra HD2 will pick up the 850MHz signals where they exist. There is no HD2 with the 1900MHz UMTS band at the moment

lude219 said:
there are billions of threads on this.
3g is radio/hardware dependent. he'll unfortunately be stuck on EDGE.
Click to expand...
Click to collapse
Would you mind pointing me in the direction of those BILLIONS of threads.
I've done searchs on hardware dependents, radio/hardware dependents, 3G radio.
There are so many way that is topic could be listed.
I'm finding nothing but my thread now just as before.

theisdept said:
a freind of mine who was given a HD2 as a part of a promotion for use on AT&T 3G network
[...]
Then the question is if we are buying these phone, some through contracts others outright, do we want to told whos service we have to use!!
Click to expand...
Click to collapse
Erm, so AT&T gives a phone, for promotion of their service, and at the same time they should allow you to use another network? You've got too much hope there...

alejo1575 said:
Hi tallmantim ....
Thanks for your response. Yeah, today I did my homework and found that my HD2 has UMTS (HSDPA) 900 - 2100 bands, a fact that is not good because Claro and Movistar in Peru operated the 850 - 1900 bands for 3G.
Question: is there a HD2 version with 850 - 1900 band ????
Click to expand...
Click to collapse
yea my friend my phone is , and i am here with t mobile suffering from same problem like u , i bought that phone which is compatible with Asia , not here in usa
is there way to exchange??
mine is
Network HSPA/WCDMA:
900/2100 MHz
Up to 2 Mbps upload and 7.2 Mbps download speeds
Quad-band GSM/GPRS/EDGE:
850/900/1800/1900 MHz
(Band frequency, HSPA availability, and data speed are
operator dependen)

egypro said:
is there way to exchange??
Click to expand...
Click to collapse
exchange your phone for cash
exchange that cash for a phone that supports the correct bands.

T-Mobile USA HD2 Network Frequencies and compatibility in Canada

Hi guys,
Just got myself T-Mobile USA HD2. Its unlocked. Moving to toronto canada next week. Can someone tell me what frequencies does my HD2 work on?
and will it work on networks in Toronto, Canada? like Rogers, telus, etc.?
Kindly let me know.
Thanks

tmous =
gsm (calls, gprs, edge) on 850/900/1800/1900 MHz
3G HSDPA on 1700 MHz (AWS) / 2100 MHz
for rogers it will work for calls, gprs and edge on gsm 850/1900, but rogers also uses 850 and 1900 for 3g, so tmous wont work for 3g, and isnt telus cdma? or have they switched to gsm yet? (i know they say theyre switching to gsm this year, but talk is cheap...) Regardless, its very unlikely to work for 3g, though it should work for calls, gprs and edge, assuming they HAVE turned on gsm.

samsamuel said:
tmous =
gsm (calls, gprs, edge) on 850/900/1800/1900 MHz
3G HSDPA on 1700 MHz (AWS) / 2100 MHz
for rogers it will work for calls, gprs and edge on gsm 850/1900, but rogers also uses 850 and 1900 for 3g, so tmous wont work for 3g, and isnt telus cdma? or have they switched to gsm yet? (i know they say theyre switching to gsm this year, but talk is cheap...) Regardless, its very unlikely to work for 3g, though it should work for calls, gprs and edge, assuming they HAVE turned on gsm.
Click to expand...
Click to collapse
thanx for the reply. telus side is surely selling gsm devices i guess. so maybe they r onn. not sure though. but other than rogers, are there any other gsm networks in toronto?
although i don use 3g at al so not a big deal for me as long as gsm works and only if sometimes req edge shd work. thats it.
also right now am in india, and i have tmobile usa HD2. moving to canada next week, is there any chance the customs ppl will have an eye on my cell phone and ask for its details? i bought it 4m ebay. if there is anything anyone know in this respect then do let me know(kinda off topic).
thanx.

US t-mobile in germany

hey,
im thinking about buying a t-mobile version of the G2 in the us.
but i thiunk its on the 1700 MHz. or is it also on the 2100MHz ?
because in germany i am on the eplus network and i dont know exactly on what band it is!
anyone having experience with that?
am i able to use the t-mobile g2 on the germany eplus 3G network?
thanks for your help

u should find some info about ur network's bands... if u cant , call them ... im with vodafone europ with tmous hd2 and its working fine with the 2100mhz 3g

Coming from the US, T-mobile has 1700/2100 mhz bands. I believe that means they use both

okay thanks,
i figured out that eplus has 2100 MHz and the phone im thinking about buying should have 1700 / 2100 MHz. so i guess itll work
thanks again!

Here's more footage on that:
http://forum.xda-developers.com/showthread.php?t=803035
The phone will definitely work in all GSM bands (Quadband) and the UMTS/3g Band 1700 MHz and 2100 MHz according to various internet sources.

T-Mobile HD2 on Australia 3g?

Hello,
I want to buy a T-Mobile HTC HD2, one question, will it work with Optus 3G Network as I've heard that it does not work with AT&T 3g so I'm wondering will it work with any other 3g provider OTHER than AT&T.
If it does work will it have any compatibility or performance issues?
THanks.

Im pretty sure my HD2 worked with the Optus network this afternoon.
Perth. WA.
dave

I was wondering if there will be problems if the T-Mobile can't use the 3g bands that Optus uses.
It seems that Optus uses HSPA 900 and 2100, not sure why 900 and 2100 is used, now here are the specs for both the HD2's T-mobile and non T-Mobile :
http://www.gsmarena.com/t_mobile_hd2-3228.php
http://www.gsmarena.com/htc_hd2-2957.php
As we see the T-Mobile does GSM 850/900/1800/1900 and HSDPA 1700/2100, and the non T-mobile can do HSDPA 900/2100, Telstra one does HSDPA 850/2100.
Now I'm wondering if the T-Mobile (or Telstra) can't do HSDPA 900, what problems will I see?
Once again I would like to use these on the Optus 3G Network.
Thanks,
BTW Dave, is yours a T-Mobile version.

[Q] Basebandswitcher V4

Is there anyway to get Basebandswitcher V4 working on the Flipout? I have an UK Motorola Flipout and I live in the US. Because the 3G band frequency for my carrier (AT&T) is different from that of the UK I am unable to get 3G on my phone.
3G Cellular Bands
My Phone's: HSDPA 900 / 2100
AT&T: HSDPA 850 / 1900

http://dext3r.komodin.org/
on the bottom of this page are baseband files! Maybe canada is a solution for you! i quess in other posts there is the basebandfile for att! try to search!
good luck