Is there a way to change the 3G Frequencies on the G1 to support AT&T 3G network?
Nope, thats a hardware issue.
I thought it was possibly a software issue. If not, is there a way to change out the chip or the incompatable part to make it compatible?
card13 said:
I thought it was possibly a software issue. If not, is there a way to change out the chip or the incompatable part to make it compatible?
Click to expand...
Click to collapse
Nope...not going to work for many reasons.
been answered plenty plenty of times.
From what I can figure a hardware change may not be required with the correct radio but we dont know the right radio without the right hardware. lol I know that makes no sense but it makes as much sense as anyone can make of it thus far. When its possible I assure you I will be among the first to do it. Although Im not ready to try installing a new radio without first acquiring a backup phone but if I do Im gonna give it a try and maybe have better luck than the last guy to try.
What about a mini-usb attachment that can receive atnt signals?
I am sure with that and the right software manipulation it could work.
sjbayer3 said:
What about a mini-usb attachment that can receive atnt signals?
I am sure with that and the right software manipulation it could work.
Click to expand...
Click to collapse
While it sounds great in theory I doubt anyone would put forth the resources for such a limited market.
You would be best off getting android to work on existing AT&T hardware.
in order to do it we would need hardware which would plug in the bottom and software to tell the phone to use the signal from the attachment.
while there wouldnt be millions in the market i guarantee there are hundreds.
if anyone wants to think about it i dont mind making 50 of em and selling for cost. i have some hook ups in the engineering field i work in
ok, my question is... Europe 3g is diff than tmob usa 3g, but is tmob europe the same 3g setup as US? and if europe 3g is same as tmob europe 3g, is att US 3g same as europe 3g. so if tmob europe is same as europe 3g then a europe g1 should work on att US 3g. am i coming thru clear or am i jumping all over?
Shaggy
Shagman68 said:
ok, my question is... Europe 3g is diff than tmob usa 3g, but is tmob europe the same 3g setup as US? and if europe 3g is same as tmob europe 3g, is att US 3g same as europe 3g. so if tmob europe is same as europe 3g then a europe g1 should work on att US 3g. am i coming thru clear or am i jumping all over?
Shaggy
Click to expand...
Click to collapse
The American G1 has 3G support for HSDPA 1700 MHz & 2100 MHz, both bands I believe are used by T-Mobile. In Europe I believe they use only 2100 MHz band for 3G.
AT&T on the other hand uses 850 and 1900 MHz HSDPA
The phone has the capability for 2G at 850 and 1900 MHz, so technically it can be used on their network, just not at 3G speeds.
Although technically it's possible to design a Phase-Locked Loop to operate at a variable frequency and to be tuned with jumpers or something, it's probably cheaper for them or they might be subsidized to make phones so that they are exclusive for one network in the US.
To me the ideal is more about standardizing the protocols and the frequencies used for all companies, and having all bands available for traffic. But at least in the short-term that's not really good for business and so probably won't happen for a while.
This is all based entirely on a limited amount of research and my opinion, take it for what it's worth.
Europe uses 1900/2100 in a pair (1900 is the uplink, 2100 is the downlink). (source)
Most phones produced these days are tri or quad band and can work (almost) anywhere.. I'm surprised the G1 isn't.
Shagman68 said:
ok, my question is... Europe 3g is diff than tmob usa 3g, but is tmob europe the same 3g setup as US? and if europe 3g is same as tmob europe 3g, is att US 3g same as europe 3g. so if tmob europe is same as europe 3g then a europe g1 should work on att US 3g. am i coming thru clear or am i jumping all over?
Shaggy
Click to expand...
Click to collapse
TonyHoyle said:
Europe uses 1900/2100 in a pair (1900 is the uplink, 2100 is the downlink). (source)
Most phones produced these days are tri or quad band and can work (almost) anywhere.. I'm surprised the G1 isn't.
Click to expand...
Click to collapse
*sigh*.
Folks, you need to learn about UMTS bands before complaining about that the G1 or any other phone can't do this or that when it certainly can.
The G1 is a 3g worldphone. It works on the US 1700 AWS network (UMTS Band IV) and works on the world's 2100 network (UMTS Band I). ATT uses the 1900 Band (UMTS Band II).
Apparently the common names for these networks is being confused with the actual operating frequencies because they don't upload and download on the same frequencies. The 1900 band is not the same as the 2100 band, even though the 2100 band (UMTS Band I) uploads in the 1900mhz frequency and downloads at the 2100mhz frequency range. The 1900 Band (UMTS Band II) uploads on the upper half of the 1800mhz and downloads on the 1900mhz frequency range. UMTS Band II uploads on the frequencies that UMTS Band I downloads.
These bands separate.
TMO 3g band is different from ATT 3g band which is also different from EU 3g band.
The 1700 band (UMTS band IV) is actually made up of 2 frequency ranges like the other bands I and II are: 1700mhz and 2100mhz. In fact, the 2100mhz download range for UMTS Band IV is within the same frequencies used for the Band I download range, theoretically making it cheaper/easier for manufacturers who make Band I phones to "support" UMTS Band IV phone production.
Most phones produced today are NOT "tri or quad-band" 3g phones. In fact, I have yet to find a quad-band 3g phone. If quad-band 3g phones were made, they would be very likely to support the T-Mobile 3g network, because it's the 4th largest UMTS band type (behind Band I, II, and V). I would be very shocked to find a phone which was 2100/1900/900/850 instead of 2100/1900/1700/850.
And the G1 is a worldphone. It works just fine on UMTS in Europe. It is a band I and band IV device.
read these 2 links:
http://www.htc.com/www/product/g1/specification.html
http://en.wikipedia.org/wiki/UMTS_frequency_bands#UMTS-FDD
So to clarify, when you see a list of support bands, this is what you should interpret from those advertised bands:
2100 Band = UMTS Band I (The entire world outside of North America)
1900 Band = UMTS Band II (The Americas, ATT)
1700 Band = UMTS Band IV (The Americas, TMO)
900 Band = UMTS Band VIII (Australia)
850 Band = UMTS Band V (The Americas, ATT)
Outside of North America, the 2100 band is almost universally deployed, even where the 850,900,1700 or 1900 band is deployed.
Related
I have an unlocked touch cruise with t-mobile in the us, but don’t understand how, or if I can, use the 3g function for internet data access. My questions are as follows:
1. How do I find out if my phone is the European version or the US version (each has differing specs on accessing the 3g network).
2. If it is the US version, will I be able to access the 3g network on t-mobile or AT&T in the US?
3. If it is the European version, will I be able to access the 3g network.
4. How do I know whether my phone is accessing 3g or not?
5. Is there a software fix to allow me to use either the European version or us version to access 3G.
Thanks in advance for any help you can offer.
Dave
there's only one version of the Cruise out:
http://www.htc.com/www/product.aspx?id=798
These are the frequencies:
Network HSDPA/UMTS: 2100 MHz (Europe), 850/1900 MHz (USA)
HSDPA: Up to 384kbps for upload and 3.6Mbps for download
UMTS: Up to 384kbps for upload and download
GSM/GPRS/EDGE: Quad-band 850, 900, 1800, and 1900 MHz (The device will operate on frequencies available from the cellular network)
It's triband 3G. It is currently working on ATT 3G in the US. I don't know about TMobile is there 3G network up and running, and if so I don't remember what frequency that might be at.
The icons at the top point to what type of network E/G is Edge, while 3G/H is 3G.
You can go into the Phone Settings under Band and see some of the different frequency choices. You can force it to be on Edge/GSM there or Auto (which will pick up 3G if it's available).
3 g access
hambola said:
there's only one version of the Cruise out:
http://www.htc.com/www/product.aspx?id=798
These are the frequencies:
Network HSDPA/UMTS: 2100 MHz (Europe), 850/1900 MHz (USA)
HSDPA: Up to 384kbps for upload and 3.6Mbps for download
UMTS: Up to 384kbps for upload and download
GSM/GPRS/EDGE: Quad-band 850, 900, 1800, and 1900 MHz (The device will operate on frequencies available from the cellular network)
It's triband 3G. It is currently working on ATT 3G in the US. I don't know about TMobile is there 3G network up and running, and if so I don't remember what frequency that might be at.
The icons at the top point to what type of network E/G is Edge, while 3G/H is 3G.
You can go into the Phone Settings under Band and see some of the different frequency choices. You can force it to be on Edge/GSM there or Auto (which will pick up 3G if it's available).
Click to expand...
Click to collapse
As I understand it (for internet data access) the european version (as alluded to in your quote) works at Network frequency: HSDPA/UMTS: 2100 MHz (Europe), the American version at the frequencies: 850/1900 MHz (USA). If my phone is the european version, then it works at 2100, and will not access usa networks, unless there is a fix.
t-mobile is 3G in my area.
How to I access the "phone settings under band". I cannot find this on my phone.
Thanks
What I am saying is the device can function on all 3 frequencies listed on the specifications page. I believe the Tmobile 3G frequencies are 1700/2100. You might want to search on the forum and check it out for sure. If it is 1700 you are out of luck. Here are some threads discussing it.
http://forum.xda-developers.com/showthread.php?t=427700
http://forum.xda-developers.com/showthread.php?t=417437
http://forum.xda-developers.com/showthread.php?t=391339
http://forum.xda-developers.com/showthread.php?t=390449
Go to Start -> Settings -> Band tab. If you don't have it, there is a registry tweak that enables that tab.
3 g access
hambola said:
What I am saying is the device can function on all 3 frequencies listed on the specifications page. I believe the Tmobile 3G frequencies are 1700/2100. You might want to search on the forum and check it out for sure. If it is 1700 you are out of luck. Here are some threads discussing it.
http://forum.xda-developers.com/showthread.php?t=427700
http://forum.xda-developers.com/showthread.php?t=417437
http://forum.xda-developers.com/showthread.php?t=391339
http://forum.xda-developers.com/showthread.php?t=390449
Go to Start -> Settings -> Band tab. If you don't have it, there is a registry tweak that enables that tab.
Click to expand...
Click to collapse
hmmm, htc told me there were two versions that the european version does not have the capability to switch to the us frequencies, which the specs list as 850 / 1900, but is only using the 2100 frequency. I'm not sure htc tech support is always accurate.
However when I go to the band tab via comm manager, settings, phone, band, it shows me (found with your assistance) that I can select gsm (1900 + 850) + UMTS(1900+850). I assume I should use this setting rather then auto.
T-mobile claims they use the 1900 and 850 bands. I am still at Edge.
I have not had time to read the threads you listed, and will do that later today. Perhaps I will have more questions then, but for now, did I select the correct gsm settings?
Thanks,
Dave
3g access
ok, read the posts you mentioned.
More information about differing versions
from phonescoop.com:
Versions of touch cruise for different regions support different 3G frequency bands.Eurasian version is WCDMA 2100 only)
I assume that since the 850 and 1900 is listed in my setup program, I have the usa version, if phonescoop is correct about two versions.
Since t-mobile works on 1700 I assume I cannot have 3g with them.
Will I get 3g with AT&T?
i personally have never heard of 2 different versions of the Cruise. I have one presumably imported from the UK and works on 3G here.
Btw the Cruise manual says this:
FunctionalityHSDPA/UMTS: 2100MHz for Europe, 850/1900MHz for USA HSDPA: Up to 384kbps for upload and 3.6Mbps for download UMTS: Up to 384kbps for upload and download
GSM/GPRS/EDGE: Quad-band (850, 900, 1800, and 1900)
There is only one version of the Cruise.
Also a caveat about the bands available in the Band tab of the Phone Settings. I believe some options might be available in the drop down even though the phone doesn't support it. Best thing is to look at the phone specs.
Mmmm... My Polaris shows this:
Bodisson said:
Mmmm... My Polaris shows this:
Click to expand...
Click to collapse
Bodisson said:
Mmmm... My Polaris shows this:
Click to expand...
Click to collapse
Bodison,
My phone has the same features in your picture.
1. Hambola states
"Also a caveat about the bands available in the Band tab of the Phone Settings. I believe some options might be available in the drop down even though the phone doesn't support it. Best thing is to look at the phone specs."
suggesting what's in the picture may not be in the phone.
2. He also states:
a.
"FunctionalityHSDPA/UMTS: 2100MHz for Europe, 850/1900MHz for USA HSDPA: Up to 384kbps for upload and 3.6Mbps for download UMTS: Up to 384kbps for upload and download
GSM/GPRS/EDGE: Quad-band (850, 900, 1800, and 1900)
b.There is only one version of the Cruise."
The phone specs restate what he states in 2a.
A and B seem to contradict one another. Unless it means that the phone is capable of all the MHz frequencies mentioned (850, 1900, and 2100), and when used in Europe it accesses 2100 frequency, and in the US the other frequency. This is not clearly stated in the specs.
If the allusion to functionality does not mean that the frequency used depends on where the phone is used, then therefore there are two versions, with hsdpa/umts for europe (2100) and another for USA (850/1900). In any case, HTC (probably not the ulimate source of reliability) states that there are indeed two versions.
According to Hambola's reference to the caution that what is in the picture may not be in the phone, what is in the picture shows what is in the specs of the phone. He is therefore suggesting that what is in the specs of the phone (as shown in the picture) are not reliable. Not sure what the implications of this are.
I have been reading other posts about 3g with ATT. Is it safe to assume that (if there is one version of the phone, or I have the one that is able to access the US bands as shown in Bodison's picture), that I will be smokin when I switch to ATT in January when my contract runs out?
I am pretty sure there is only one version of the Cruise and it has those 3 bands listed for 3G. In fact there are guys on this forum that have the UK Orbit O2 running on the ATT 3G stateside.
3 g access
In any case, I tested my phone with a buddy's ATT sim card and was able to access 3G for browsing just fine.
I agree there is one version, though the HTC rep told me otherwise, he was probably....
Hi,
i live in argentina, and i found i dont have 3g coverage.
bands in argentina are http://www.mobileworldlive.com/maps/network.php?cid=3206&cname=Argentina
Do anyone know if is there a way to config my xt720 to bands 850/1900?
tks!
There isn't anything to configure. The phone automatically defaults to the 850/1900 bands when 3G isn't available.
but if in my country bands ar 850/1900, why do i only have edge?
tutincho said:
but if in my country bands ar 850/1900, why do i only have edge?
Click to expand...
Click to collapse
You probably won't ever get 3G due to different bands on the phone versus your country's. Edge only.
reverendkjr said:
You probably won't ever get 3G due to different bands on the phone versus your country's. Edge only.
Click to expand...
Click to collapse
To expand on what the Rev said from what i know in North America all XT720s that were sold, were W-CDMA/AWS i.e. their 3G bands were 1700mhz down link and 2100mhz uplink. Although they did have quad band 2G i.e. GSM 850/900/1800/1900.
So if in Argentina they are using 3G frequencies 850mhz down link 1900mhz uplink then the xt720 will never get 3G HSPA, phones from the following carriers will work Telstra NextG phones (Australian), Rogers (Canadian), Bell New 3G (Canadian), Telus New 3G (Canadian), and AT&T (USA).
Hope this helps.
lynxz3 said:
To expand on what the Rev said from what i know in North America all XT720s that were sold, were W-CDMA/AWS i.e. their 3G bands were 1700mhz down link and 2100mhz uplink. Although they did have quad band 2G i.e. GSM 850/900/1800/1900.
So if in Argentina they are using 3G frequencies 850mhz down link 1900mhz uplink then the xt720 will never get 3G HSPA, phones from the following carriers will work Telstra NextG phones (Australian), Rogers (Canadian), Bell New 3G (Canadian), Telus New 3G (Canadian), and AT&T (USA).
Hope this helps.
Click to expand...
Click to collapse
Thanks, I didn't know the specifics off the top of my head, I just knew it wasn't going to work.
Hi everyone.. I'm planning to get this device and use it outside the US (mainly China and Indonesia).
Will the 3G work in those 2 countries? From the specs sheet, I understand that MT4GS support UMTS 2100. So theoretically, there should be no problem, since China and Indonesia use UMTS 2100 band, but it would be better if someone with personal experience can confirm this.
Anyone here has any experience using MT4GS outside the US?
yep. I am. In the Netherlands. Don't know what band i am though. And i had to unlock the device before i could use it.
I'm in Canada, working fine on the regular GSM bands but I only get 2G speeds when using data...thinking about switching to a UMTS provider.
nldroid said:
yep. I am. In the Netherlands. Don't know what band i am though. And i had to unlock the device before i could use it.
Click to expand...
Click to collapse
so just to be clear.. your handset has no problem using 3G connection right? as far as i know, the netherlands also use UMTS 2100 band
mat_oli said:
I'm in Canada, working fine on the regular GSM bands but I only get 2G speeds when using data...thinking about switching to a UMTS provider.
Click to expand...
Click to collapse
why do you only get 2G when using data? is it due to the provider or the handset?
forzanetti said:
so just to be clear.. your handset has no problem using 3G connection right? as far as i know, the netherlands also use UMTS 2100 band
Click to expand...
Click to collapse
Yep i don't have any problems using the 3G connection. Just needed to find the right APN settings.
And according this site (and a couple of others):
http://www.worldtimezone.com/gsm.html
It's indeed the 2100 band.
nldroid said:
Yep i don't have any problems using the 3G connection. Just needed to find the right APN settings.
Click to expand...
Click to collapse
Great!! one less thing to worry then so I think there isn't any limitations if this device is used outside the US, as long as the UMTS band is correct.
Thanks a lot!
forzanetti said:
so just to be clear.. your handset has no problem using 3G connection right? as far as i know, the netherlands also use UMTS 2100 band
why do you only get 2G when using data? is it due to the provider or the handset?
Click to expand...
Click to collapse
It's due to the provider, they don't operate on the 2100 band, so I can only use their 2G network.
mat_oli said:
It's due to the provider, they don't operate on the 2100 band, so I can only use their 2G network.
Click to expand...
Click to collapse
Thanks for the info!! Now I feel more encouraged to get this device
I found this in the review section of this phone in phonearena :
Global travelers will like the handset very much since it can be used just about anywhere around the world for phone calls, but 3G and 4G data speeds can only be experience domestically through T-Mobile’s AWS band. However, you can still achieve 2G EDGE speeds with other network carriers.
Click to expand...
Click to collapse
now I'm confused again
2G it is GSM that can be used anyware in the world that supports GSM however 3G on different carriers uses different bands and different technology, Tmob uses a AWS* some carriers use this for there 3G.... Check if your carrier uses AWS for its 3G.
I know that Canada has WIND and Mobilicity that use AWS 1.7/2.1 for there 3G,.... that said I don't know about other countrys...
* About AWS in the USA
In September 2006, the Federal Communications Commission (FCC) auctioned licenses in the first Advanced Wireless Services band. This band was an area of wireless spectrum, half in the 1700 MHz (1.7 GHz) and half in the 2100 MHz (2.1 GHz) frequencies, that was already in use by government services. The spectrum was planned to become available after the government users migrated to different frequencies.
Mistix said:
2G it is GSM that can be used anyware in the world that supports GSM however 3G on different carriers uses different bands and different technology, Tmob uses a AWS* some carriers use this for there 3G.... Check if your carrier uses AWS for its 3G.
I know that Canada has WIND and Mobilicity that use AWS 1.7/2.1 for there 3G,.... that said I don't know about other countrys...
* About AWS in the USA
In September 2006, the Federal Communications Commission (FCC) auctioned licenses in the first Advanced Wireless Services band. This band was an area of wireless spectrum, half in the 1700 MHz (1.7 GHz) and half in the 2100 MHz (2.1 GHz) frequencies, that was already in use by government services. The spectrum was planned to become available after the government users migrated to different frequencies.
Click to expand...
Click to collapse
Hi Mistix.. thanks for your reply
Yes I'm aware about the AWS which uses the 1700/2100 band for their 3G and 4G, but according to phonearena, MT4GS supports the following band :
UMTS: 1700/2100, 2100
Click to expand...
Click to collapse
which means besides supporting AWS (1700/2100), it also supports the "regular" 2100 UMTS band. The information could be wrong though..
but nldroid has stated that he has no problem using 3G in the Netherlands. And the last time I checked, the Netherlands still use the "regular" 2100 UMTS band (AWS is only available in the states and Canada).
Maybe they mean that if you're T-Mobile USA customer you can only use 2G outside the US with roaming.
I'm definitly on 3G. (it actually says 4G sometimes: http://attachments.xda-developers.com/attachment.php?attachmentid=689448&d=1313411454)
nldroid said:
Maybe they mean that if you're T-Mobile USA customer you can only use 2G outside the US with roaming.
I'm definitly on 3G. (it actually says 4G sometimes: http://attachments.xda-developers.com/attachment.php?attachmentid=689448&d=1313411454)
Click to expand...
Click to collapse
Thanks for the pic! Looking forward to get my hand on this baby next month
I work for Tmous retail sales and we have never really been taught anything about bands. Ive been pretty curious myself since some customers come into the store with AT&t phones asking about tmo service. I have been instructed (by a fellow retail associate) to tell them that no At&t phone will ever have 3G on tmo ( I assume thats just the safe answer though).
real question!
in terms of 3G/4G (hspa+) what bands does tmous use?
same question for AT&t.
To tie that together. ex: If a phone from At&t hypothetically has capabilities to use the same bands as tmous and is unlocked, can it get 3G/4G service on tmous?
i did search around and didnt find a very clear answer so i figured i'd start a thread, im sure other noobs have the same question.
T-Mobile uses 1700 2100 MHz bands for 3G/"4G"
AT&T uses 850 and 1900 MHz bands for 3G/"4G"
Yes if a phone has all those bands for 3G, and it's SIM unlocked you can get 3G on other cell company.
The T-Mobile Vibrant actually has those AT&T bands too, if you SIM unlock the Vibrant, you can get 3G on AT&T.
http://www.androidguys.com/2010/08/22/samsung-galaxy-unlockable-tmobile-vibrant-supports-att-3g/
It's very rare to see a phone that supports both T-Mobile and AT&T 3G bands.
nxt said:
T-Mobile uses 1700 2100 MHz bands for 3G/"4G"
AT&T uses 850 and 1900 MHz bands for 3G/"4G"
Yes if a phone has all those bands for 3G, and it's SIM unlocked you can get 3G on other cell company.
It's very rare to see a phone that supports both T-Mobile and AT&T 3G bands.
Click to expand...
Click to collapse
Thanks for the clarification. In hopes that im not being a further nuisance, I was wondering, what about a phone that has 1 of the matching bands?
T-Mobile USA is using the 1700/2100 Mhz bands for 3G (UMTS)
T-Mobile Germany uses 1900/2100 Mhz for 3G (UMTS)
If you couldnt tell, im considering buying an iPhone (to develop on for fun). Will a phone that uses 2100 Mhz only be usable on USA towers (for 3G service)?
DrewMullen said:
Will a phone that uses 2100 Mhz only be usable on USA towers (for 3G service)?
Click to expand...
Click to collapse
No it will not get 3G
So yesterday I flashed this phone to ICS, its great, thanks guys!
However, I have a question about radio (I'm a software guy not a hardware guy).
Apparently, this phone supports Triple band UMTS 1700 1900 2100 MHz.
Rogers Wireless in Canada 'operates on the frequencies of 850/1900 MHz'
So, why can't I connect to Rogers Wireless with 3G speeds on the 1900mhz band? Does the phone require both 850 and 1900 MHz UMTS to operate 3G on a 850/1900MHz network?
The best connection I can get is EDGE and it's painfully slow...I bought this phone before I had a data plan with Rogers, so I never quite realized this issue...I guess I could just switch to WIND I just want to understand why it cant operate 3G over the 1900MHz band
3g needs 2 bands, one for upload and one for download. And that's why most phones, for example, bringing to the T-mo network you won't get 3g/ 4g speeds since it would need both the 1700/2100 bands and not a whole lot of non T-mo phones have these bands. So in your case a phone to run on Rogers with 3g would need both the 850 and 1900 bands.
the hardware should be able to operate at those frequencies but its software locked to 1700/2100 or 2100 mhz, so if you want 3g/hspa you must be on an operator which uses one of those 2 frequencies
Braccoz said:
the hardware should be able to operate at those frequencies but its software locked to 1700/2100 or 2100 mhz, so if you want 3g/hspa you must be on an operator which uses one of those 2 frequencies
Click to expand...
Click to collapse
how do i software unlock it? Does cid uunlocking do this?
Although I haven't use it, I often see 4G Rogers data connection when I'm in Wind's "away" zone. Assuming there are no other models of MT4GS (with different radios) I'm rather sure this phone can use Rogers 3G network.