[Q] Can I change what frequency my G2 Uses for data? - G2 and Desire Z General

Question for the collective wisdom of the group:
I bought an unlocked T-Mobile HTC G2 off of ebay thinking it was the same as a regular Desire Z. Phone is great, but 3G does not work in my home country (Honduras). Is there anyway to change the data frequency on the phone?
Thanks in advance
AE

loaferoatan said:
Question for the collective wisdom of the group:
I bought an unlocked T-Mobile HTC G2 off of ebay thinking it was the same as a regular Desire Z. Phone is great, but 3G does not work in my home country (Honduras). Is there anyway to change the data frequency on the phone?
Thanks in advance
AE
Click to expand...
Click to collapse
No, not possible.
Sent from my T-Mobile G2 using XDA App

NAM version of Desire Z
Someone told me that I need the NAM Desire Z (850mhz) to be able to use with my local network...Am i really stuck with Edge with my T-mobile G2?

loaferoatan said:
Someone told me that I need the NAM Desire Z (850mhz) to be able to use with my local network...Am i really stuck with Edge with my T-mobile G2?
Click to expand...
Click to collapse
Yes. The G2 and the DZ use different bands for data, so you will not be able to get 3G or 4G from it.

loaferoatan said:
Someone told me that I need the NAM Desire Z (850mhz) to be able to use with my local network...Am i really stuck with Edge with my T-mobile G2?
Click to expand...
Click to collapse
Unfortunatly yes, you are stuck if you keep the G2, best bet sell it an get a HTC A7275 Desire Z NAM, this model supports (850mhz). This is the only model Desire Z that supports this frequency. It has to ba a A7275 model. Bell Canada sell this model and some other online electrionc vendors.

There are AT LEAST THREE different variations on the VISION hardware, supporting different frequency sets. The AWS version debranded by tmobile, is capable of upload on 1700 (used in US and Canada) or 1900 (used in Europe) MHz, download on 2100.

For info, since this comes up a lot, I have updated the Wiki with the information about which radio bands are supported by which Vision model - http://forum.xda-developers.com/wiki/index.php?title=HTC_Vision#Radio_Bands

As other have indicated, you are stuck on EDGE. The MHz compatibility is a function of the hardware, and therefore can't be changed. Always research the heck out of the device before buying anything that is unlocked or otherwise not from your carrier.

If your wireless provider uses "standard" north american frequencies like AT&T USA, Bell Mobility Canada, and Rogers Wireless Canada, you need the Desire Z p/n: 99HLW020. Phones that are p/n: 99HLW021 are T-Mobile USA only.

halfinn said:
If your wireless provider uses "standard" north american frequencies like AT&T USA, Bell Mobility Canada, and Rogers Wireless Canada, you need the Desire Z p/n: 99HLW020. Phones that are p/n: 99HLW021 are T-Mobile USA only.
Click to expand...
Click to collapse
"Standard"? It would help if there was such a thing. In most of Europe and in Japan, they only use one network type and frequency (instead of mish-moshing GSM and CDMA and different frequencies). As long as your phone is SIM unlocked, you can use your device on any carrier. That's how it should be.

halfinn said:
If your wireless provider uses "standard" north american frequencies like AT&T USA, Bell Mobility Canada, and Rogers Wireless Canada, you need the Desire Z p/n: 99HLW020. Phones that are p/n: 99HLW021 are T-Mobile USA only.
Click to expand...
Click to collapse
How do those 3 together make it standard? There are 3 providers using UMTS on GSM and PCS (which you've listed), there are more than 3 using AWS.... tmobile, globalive, mobilicity, and videotron running now... and more coming soon... as well, ALL of the providers you've mentioned OWN AWS spectrum, and at least ATT is apparently planning on using it.... (robelus just bought a bunch of it up to block out competition... the bastards.)
So seems to me that AWS is more "standard" than GSM or PCS spectrum.

dhkr123 said:
How do those 3 together make it standard? There are 3 providers using UMTS on GSM and PCS (which you've listed), there are more than 3 using AWS.... tmobile, globalive, mobilicity, and videotron running now... and more coming soon... as well, ALL of the providers you've mentioned OWN AWS spectrum, and at least ATT is apparently planning on using it.... (robelus just bought a bunch of it up to block out competition... the bastards.)
So seems to me that AWS is more "standard" than GSM or PCS spectrum.
Click to expand...
Click to collapse
Yeah, I don't know if calling it the standard for North American frequencies is completely right (though I believe in terms of numbers of users/towers instead of number of providers, it actually might be but I'd have to go research to be sure---most manufactures refer to their North American versions of phones as using these frequencies as well). I would say however, it is pretty much the standard for the Americas. Almost all of Central and South American use 850/1900 as well. AWS is limited to only the the US and Canada (I believe).

Related

x10i on Rogers Network?

Hi,
I bought an x10 from 3 hong kong, fully unlocked. I brought it back to Canada and there's no 3G! I checked all the frequencies and should be all compatible, entered rogers APNs and still no 3G.
Is it possible to get the x10 to work on 3G on rogers?
No unfortunately. The X10 you got from Hong Kong is the international version and it does NOT have the correct 3G bands for Canada/US. You do get quad band GSM but you can only get EDGE. You would need the American version of the X10 in order to get 3G.
Yeah, tough luck. I'm still confused as why AT&T and T-mobile has different 3G bands. Rogers and AT&T use WCDMA 1900 MHz bands while T-mobile and what feels like the rest of the world (just kidding, but at least Europe too) uses WCDMA 2100.
Stop me if I'm way out of my league but my question is WHY?
And isn't it possible to just buy the phone from Rogers directly, cash?
Yea you can buy the phone from Rogers directly with cash but it is still locked. You need to get it unlocked before using it on another carrier.
Why do you need it unlocked if in Canada Rogers is the only one using that frequency?
that's the problem. i can't use rogers phones since i travel a lot. i have to buy a world phone of some sort.
I heard you can root your phone and change the frequencies. is that possible?
I was assuming Flamso might need it for AT&T or some other carrier. Also, it's not just Rogers that uses the frequence. We do have Telus and Bell now. Buy an X10, get it unlocked and use it on Telus or Bell.
Telus and Bell aren't CDMA?
I know Fido and Rogers are the same.
You shouldnt have a tough time selling that one here. Doesnt it support the aws band that wind mobile runs on? AWS 1700 i think
Tri3Dent said:
I was assuming Flamso might need it for AT&T or some other carrier. Also, it's not just Rogers that uses the frequence. We do have Telus and Bell now. Buy an X10, get it unlocked and use it on Telus or Bell.
Click to expand...
Click to collapse
Well, no. My X10i works perfectly in Sweden with ALL providers.
any one know how to unlock rogers x10, so i can use it on teles..??
gavriel18 said:
You shouldnt have a tough time selling that one here. Doesnt it support the aws band that wind mobile runs on? AWS 1700 i think
Click to expand...
Click to collapse
I have a x10i and it does work well on Wind i.e. 3G.
firin said:
any one know how to unlock rogers x10, so i can use it on teles..??
Click to expand...
Click to collapse
what color you have? I have a BNIB unlocked X10i white wanting to trade for a X10 locked to rogers
email me if interested
i have the luster white x10i from one of the ebay seller in HK, and it works with T-mobile USA 3G network. UMTS band is 900/1700/2100. Rogers are using 800/850/1900/2100. I dont think you could change the frequency as it is part of the hardware.
Is there a way you can boost edge speed? i can't load facebook or weather with edge. it always times
Cheapest Canadian X10 unlock: http://www.mobileincanada.com/?l=en&u=all&coupon=facebook $5 CAD
T-Mo US and AT&T use different frequencies because spectrum is regulated. Whoever has the deeper pockets can buy more of it.
T-Mobile & Wind Mobile use the same 3G frequency (Band IV 1,700 Mhz) whereas Rogers and AT&T use Band V 850 Mhz.
Telus and Bell Mobility are also now HSPA so you can use unlocked Rogers 3G devices on their network too.
Bell has a tool on their website where you enter in your IMEI and it'll tell you if it's compatible: http://www.bell.ca/support/PrsCSrvWls_GettingStartedGuide.page#4
Scroll down to: Q: How do I check to see if I can bring my phone to Bell?
Tri3Dent said:
No unfortunately. The X10 you got from Hong Kong is the international version and it does NOT have the correct 3G bands for Canada/US. You do get quad band GSM but you can only get EDGE. You would need the American version of the X10 in order to get 3G.
Click to expand...
Click to collapse
the Hong Kong X10i version will support T-mobile USA 3G network. the UMTS bandwidth is 1/4/8 which is 900/1700/2100. I got my luster white from hong kong ebay seller, and it works with T-mobile USA 3G network. For X10a (american version) the UMTS bandwidth is 800/850/1900/2100.
so that's why they have x10i and x10a
hardware difference for the 3G network to link with.
x10a is designed for north america
x10i can link on at&t's 3G just because it match
Just sign up with WIND mobile and enjoy because the X10i is compatible with the AWS band (same for T-Mobile down south). But if you are out of their coverage area then there won't be any 3G service (falls back to GSM + EDGE).
The X10a from Rogers will work with Telus and Bell HSPA 3G networks once you have it unlocked.
it does not matter what kind of x10 firmware you have. if your phone is originally a x10a, it has att 3g bands that works with rogers. if you flashed it with x10i firmware, you can still use the 3g because flashing the firmware does not change the bands.
x10i will work with rogers but you only get edge aka 2g.

Unlocking 3G on HTC Desire

I purchased an HTC Desire to use with my AT&T service. My Desire is GSM/WCDMA and not GSM/UMTS. Meaning, that my Desire can not run on anything but EDGE. I spoke with a rep at HTC and he let me know that there may be an APP to unlock the 3G service... Does anyone have any information on this?
Thank you kindly in advance...
~HR
isn't WCDMA = UMTS?
That's what I thought too, but the HTC rep, let me know that I can only unlock 3G with an App. That because I have an import and it's not currently available in the U.S. I would need to find this app and unlock my 3G service. The Desire wont pick up AT&T's 3G...
boge said:
isn't WCDMA = UMTS?
Click to expand...
Click to collapse
Yes........
I think it might be a frequency issue.
As far as I'm aware there are two models of Desire - A8181 and A8183.
In Australia, the model is the A8183 which provides WCDMA/UMTS at 850 and 2100 mhz. I think the A8181 operates at 900 and 2100 mhz.
If you imported from anywhere else other than Australia you'll most likely have a model A8181.
What frequency is AT&T 3g?
I do have an A8181. AT&T currently uses 850 and 1900 mhz...
Do you think there is a fix for this like the HTC rep mentioned?
cr1960 said:
I think it might be a frequency issue.
As far as I'm aware there are two models of Desire - A8181 and A8183.
In Australia, the model is the A8183 which provides WCDMA/UMTS at 850 and 2100 mhz. I think the A8181 operates at 900 and 2100 mhz.
If you imported from anywhere else other than Australia you'll most likely have a model A8181.
What frequency is AT&T 3g?
Click to expand...
Click to collapse
AT&T uses 850/2100 like Telstra does in AU.
If you have the A8181 you are stuck with 900/2100. I think it's a hardware thing so an app probably wont help, not 100% sure about that though.
[email protected] said:
That's what I thought too, but the HTC rep, let me know that I can only unlock 3G with an App. That because I have an import and it's not currently available in the U.S. I would need to find this app and unlock my 3G service. The Desire wont pick up AT&T's 3G...
Click to expand...
Click to collapse
You bought the wrong phone ?(A8181)! As has been previously mentioned, you need an Australian Telstra Desire (A8183) to support AT&Ts 3G.
There is nothing that can be done about this because the hardware is different. You should sell your A8181 and buy an A8183.
Regards,
Dave
[email protected] said:
I do have an A8181. AT&T currently uses 850 and 1900 mhz...
Do you think there is a fix for this like the HTC rep mentioned?
Click to expand...
Click to collapse
Sorry to say , but I don't think so. the differences are in the hardware, not software.
You could always keep your device and change carrier? I presume someone in your area might use 2100 mhz??
cr1960 said:
You could always keep your device and change carrier? I presume someone in your area might use 2100 mhz??
Click to expand...
Click to collapse
Unfortunately not - the only other major GSM operator in the US is T-Mobile, and they use a split band of 1700/2100 and requires support for both to work.
Regards,
Dave
Does anyone wanna trade an A8183 for my A8181????
-------------------------------------
Sent via the XDA Tapatalk App
foxmeister said:
Unfortunately not - the only other major GSM operator in the US is T-Mobile, and they use a split band of 1700/2100 and requires support for both to work.
Regards,
Dave
Click to expand...
Click to collapse
Bugger! And I thought Australia had crappy providers
@Hugo - good luck with your sale. The device is incredibly popular in Europe, so eBay might be your best friend for a buyer.
i will
i' happy to trade with yours i got htc 8183 for 10 days
im running different operator than telstra so i would like a free wwe rom

HTC Legend, Virgin @ BestBuy.ca , please advice.

Hi,
Will this phone work in Europe?
It says: HSPA/WDCMA: 900/2100 mHz
But i am also worried about the virgin branding, how hard is it to debrand and flash an Android phone, i only have PocketPC &Windows mobile experience.
If i "root" the phone ( that's what Android flashing is called, no?) will i be able to use any sim card on it, and will it work in Europe?
PS: Is android 2.2 available for legend or do i need a custom hacked rom?
Thanks in advance for the help!
http://www.bestbuy.ca/en-CA/product/htc-virgin-mobile-htc-legend-smartphone-silver-legend/10147761.aspx?path=9e83718732260dc436db081f26fda121en02
I've heard people having success using the Virgin/Bell Legend in the US, on AT&T, So I'm thinking if the country you're going to has GSM, you'll be OK (not sure though).
You can unlock the phone for use on any carrier though, it's a totally different thing. http://www.htccode.com gets you an unlock code so you can use any SIM. (20 bucks isn't bad.)
However, we have yet to root our version of the Legend. Check out this thread: http://forum.xda-developers.com/showthread.php?t=700898
There are versions of 2.2 out there for the legend, but we cannot flash them to our devices, as we have the ROM version 2.03.xxx.
Hope I could help!
Joeball88 said:
I've heard people having success using the Virgin/Bell Legend in the US, on AT&T, So I'm thinking if the country you're going to has GSM, you'll be OK (not sure though).
Hope I could help!
Click to expand...
Click to collapse
Do you have an idea on wich band gsm network in Canada works?
A girlfriend comes over there for holliday and wonders if her mobile will work.
It's a dual band 850/1900.
The version Virgin/Bell sells in Canada has only 850/1900MHz HSPA support. That will not work (3G) in Europe. EDGE will still be available though.
As for branding, there really isn't any, physically or in software. There are a couple apps that are preloaded (a music app and a media app I believe) and that's it.
chuck232 said:
The version Virgin/Bell sells in Canada has only 850/1900MHz HSPA support. That will not work (3G) in Europe. EDGE will still be available though.
As for branding, there really isn't any, physically or in software. There are a couple apps that are preloaded (a music app and a media app I believe) and that's it.
Click to expand...
Click to collapse
Network
HSPA/WCDMA: • North America: 850/1900 MHz• Upload speed of up to 2 Mbps and download speed of up to 7.2 Mbps Peak Rate
Quad-band GSM/GPRS/EDGE: 850/900/1800/1900MHz (Band frequency, HSPA availability, and data speed are operator dependent.)
This has to work.
Ok great, so i will probably get this one.

3G international compatibility

Hi there guys! Now that the phones are finally shipping, can anyone please test the real band compatibility? I want to buy an unlocked G2 and use it here in Italy, but only if I can get at least a fully working 3G connection.
Please fellas, I badly need this info..
Thanks
Neuromansa said:
Hi there guys! Now that the phones are finally shipping, can anyone please test the real band compatibility? I want to buy an unlocked G2 and use it here in Italy, but only if I can get at least a fully working 3G connection.
Please fellas, I badly need this info..
Thanks
Click to expand...
Click to collapse
No such luck chief. The only 3G band on the G2 is AWS. It will only work on carriers like T-Mobile (USA), and Wind (Canada).
The stock Desire Z, however, has HSDPA 900 / 2100 and should work in most non-US countries on 3G, but check your carriers bands first. The downside, Desire Z has 1.5 GB storage, the G2 has 4 GB.
Neuromansa said:
Hi there guys! Now that the phones are finally shipping, can anyone please test the real band compatibility? I want to buy an unlocked G2 and use it here in Italy, but only if I can get at least a fully working 3G connection.
Please fellas, I badly need this info..
Thanks
Click to expand...
Click to collapse
Unfortunately I think you are going to be disappointed. I posted a buzz about this a while back. You can look at page 3 of the test report in the FCC submission. The nutshell summary is that the device will only support Band IV for 3G, or in other words T-Mo US' UMTS 1700. This is unfortunate since I used my unlocked G1 quite a lot overseas, thanks to its UMTS 900/2100.
You'll probably have to go with a Desire Z if you want this device with European radios.
Can't believe it's for real...I mean, the 2-year-old G1 does that...and what about people working overseas?
That's a MAJOR fault from T-Mobile, and it's totally weird to say the least.
Neuromansa said:
and what about people working overseas?
Click to expand...
Click to collapse
Perhaps tmo figures that frequent int'l travelers are a small enough percentage of their userbase that omitting the Band I poweramp was worth the cost savings?
Oh, it gets better. I only paid attention to the UMTS bands when I read the report, assuming that any modern smartphone would be a quad-band GSM device. Turns out the G2 is only GSM 850/1900, which means this device is truly unusable in Europe and Asia.
Wait a minute, what GSM bands are used in Asia?
The HTC site says otherwise : http://www.htc.com/us/products/t-mobile-g2#tech-specs
According to T-Mobile and HTC sites specs, the phone is GSM quad band (850, 900, 1800, 1900).
The HTC site says "UMTS: Yes"
Superfrag said:
Wait a minute, what GSM bands are used in Asia?
The HTC site says otherwise : http://www.htc.com/us/products/t-mobile-g2#tech-specs
Click to expand...
Click to collapse
Europe and Asia are GSM 900/1800, generally. What is interesting is that the HTC page claims the G2 is quadband, but the FCC testing documents don't show any 900/1800 data at all. The phone cannot legally operate in the U.S. in that band unless testing data has been submitted to the FCC. I'm wondering if HTC marketing just c&p from the Desire Z specs and forgot to edit the GSM infos. We'll see soon enough I suppose.
it doesn't make sense why they would release a phone that wasnt quad band. it must be a mistake. it is like power seats on a luxury car. it's just there lol.
So a unlocked G2 could be used on WINDs network here in Canada (because they use the same frequency), can some one confirm this please
PremiumReview said:
So a unlocked G2 could be used on WINDs network here in Canada (because they use the same frequency), can some one confirm this please
Click to expand...
Click to collapse
Wind uses AWS (UMTS Band IV)... So, yes. But if they do not have HSPA+ enhancements you won't get the famed and promised super speed. The phone should be able to be used on USA (T-Mobile, Cincinnati Bell Wireless), Canada (WIND Mobile, Mobilicity, Videotron)
Based on the G1 test reports...
... the bands listed in the FCC test reports are not at all definitive.
I pulled the FCC exhibits for the G1 and they listed:
GSM 850
GSM 1900
WCDMA Band IV
(plus 802.11 etc)
In other words, no Band I.
However, I've been successfully using my G1 on 3G in both Europe and Asia for over a year now, so it actually has Band I.
I suspect the FCC tests only cover the frequencies that the device is going to be used on *in the US*. Frequencies the device may or may not be capable of using outside the US just aren't relevant.
That being said, the more significant detail is that the T-mobile site lists the G2 as only having Band IV, even though it lists the Vibrant as having Bands I and IV. Looking at other phones, it seems that T-mobile isn't terribly consistent in how they list their frequencies, but that's a (relatively) slim thread to hang onto.
crr127 said:
it doesn't make sense why they would release a phone that wasnt quad band. it must be a mistake. it is like power seats on a luxury car. it's just there lol.
Click to expand...
Click to collapse
It is quad-band -- for GSM -- as all (most?) modern non-CDMA phones (and some of those) are. But the OP question is about 3G.
ravi_n said:
I suspect the FCC tests only cover the frequencies that the device is going to be used on *in the US*. Frequencies the device may or may not be capable of using outside the US just aren't relevant.
Click to expand...
Click to collapse
Good sleuthing. I didn't consider this possibility.
That being said, the more significant detail is that the T-mobile site lists the G2 as only having Band IV, even though it lists the Vibrant as having Bands I and IV. Looking at other phones, it seems that T-mobile isn't terribly consistent in how they list their frequencies, but that's a (relatively) slim thread to hang onto.
Click to expand...
Click to collapse
I wouldn't put it past T-mo to have just messed up the detail.
I suppose the easiest way to determine would be for someone with an unlocked G2 (or even a locked unit) to take it to Europe or Asia and see if the system status shows UMTS signal or not.
Unlocked G2 Australian user
Hey Guys,
I actually received my G2 a few days ago. Yesterday i purchased an unlock code and entered this in to the phone which it advised was accepted.
The device then rebooted, however once the system loaded i noticed my signal bar had an "x" through it.
Browsed to Network Operators and tried selecting to search for networks and also to select automatically. Both of these selections returned an error "error searching for network" or every second try it would say "unable to connect to network".
I tried a factory reset of my phone but still the same issue.
I tried dialing *#*#4636#*#* which opens a testing screen. I noticed on this screen i can see i have a signal of -85 dBm which is similar to on my galaxy s.
Tried playing with the settings on this screen, i had the option to select network band to which i alternated between all options including auto and AUS, AUS2.
I can confirm this is a Vodafone simcard and it works perfectly in other phones.
I tried a Telstra, 3 and a friends Vodafone simacard all of which produced the same error.
I noticed there are several Australian sites selling unlocked Tmobile G2's.
At this point i would like to try flashing the stock rom on again however i am not sure on the button combo to access the recovery screen.
Last thing to note is yes i have spoke with Vodafone, HTC AU and HTC US, none of the techs were able to help me. =(
TheRiceKing said:
I tried dialing *#*#4636#*#* which opens a testing screen. I noticed on this screen i can see i have a signal of -85 dBm which is similar to on my galaxy s.
Click to expand...
Click to collapse
What was the network type when you saw the -85 dBm signal?
jashsu said:
What was the network type when you saw the -85 dBm signal?
Click to expand...
Click to collapse
Just checked right now and it says,
Signal stregth -91dBm 11 asu
Under Network Type it says unkown CID is also unkown.
Would a G2 work on Softbank (Japanese Carrier) They use the 2100 band IV I believe. I know my T-Mobile Nexus One worked fine on there 3G.
I could care less if the HSPA+ worked just 3G would be fine.
Okawa said:
Would a G2 work on Softbank (Japanese Carrier) They use the 2100 band IV I believe. I know my T-Mobile Nexus One worked fine on there 3G.
I could care less if the HSPA+ worked just 3G would be fine.
Click to expand...
Click to collapse
Band IV is commonly referred to as AWS 1700. From the gsmworld entry, it looks like Softbank is running on Band I ("UMTS 2100"). The G1 and Nexus One both had UMTS 900 & UMTS 2100 (the global bands) in addition to T-Mo specific AWS 1700. We're trying to determine if the G2 also has 900&2100 radios, but right now it's not looking very good.

Htc desire z a7272 - usa Tmobile 3G

I bought the phone off of amazon originally to use with my AT&T 3G lol but it was the wrong model BUT will it work with Tmobile 3G
If i remember correctly, the Canadian and Euro versions (Desire Z) are "world phones" which carry compatibility with all GSM bands in the world. The T-Mobile G2 is the same hardware but only has the compatibility of T-Mobile's GSM bands.
To see which one you have, check the battery cover. If it has "G2" then you have T-Mobile's version. If you have just "HTC" with "with Google" on the bottom, you have the Desire Z version.
Athrun88 said:
If i remember correctly, the Canadian and Euro versions (Desire Z) are "world phones" which carry compatibility with all GSM bands in the world. The T-Mobile G2 is the same hardware but only has the compatibility of T-Mobile's GSM bands.
To see which one you have, check the battery cover. If it has "G2" then you have T-Mobile's version. If you have just "HTC" with "with Google" on the bottom, you have the Desire Z version.
Click to expand...
Click to collapse
T-mobile runs on different bands than most European carriers though. It depends on the exact model he has. T-Mo runs on 1700/2100mhz for 3G. AT&T runs on 850/1900.
He actually stated which version he had---the A7272, which is the European version. This version is not compatible with 3G for AT&T (which he found out) or T-Mobile. It will work with 3G pretty everywhere in the world outside of the Americas though.
The Canadian/NAM version is the A7275. It works with 3G on AT&T, most of the rest of the Americas and parts of Australia, but not elsewhere in the world for the most part.
Sell it and get the desire z

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