Hello everyone, im from mexico, i just bought a DVP from T-Mobile, i think is unlocked cause when inserted my sim card from "Telcel" i can make calls, send/receive sms, etc, always have "E" letter besides signal metter, however i would like to use "3G" network, as i found on this forum seems to "E" means edge, and T-mobile is not compatible with telcel 3g, is this correct? just want to confirm this and i want to know if ATT version is compatible to 3G from telcel, thanks in advance, BR
As far as I know Telcel uses the 850 band for 3G. The T-Mobile version uses 900/1700/2100 and hence wont support the Telcel 3G. The ATT version has the 850/900/2100 band and hence theoretically should support the Telcel 3G. It is advisable that you confirm with someone in your area if the ATT version works, because as per specifications it should work. The TMobile wont work as it does not support the 850 band
Thank you
Thanks, very clear and direct, also quick answer, so if i understand correctly its kinda hardware diference, right? so no way to convert or configure an aws to pcs or backwards.. thank you!
xpmymob said:
As far as I know Telcel uses the 850 band for 3G. The T-Mobile version uses 900/1700/2100 and hence wont support the Telcel 3G. The ATT version has the 850/900/2100 band and hence theoretically should support the Telcel 3G. It is advisable that you confirm with someone in your area if the ATT version works, because as per specifications it should work. The TMobile wont work as it does not support the 850 band
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ejbt said:
Thanks, very clear and direct, also quick answer, so if i understand correctly its kinda hardware diference, right? so no way to convert or configure an aws to pcs or backwards.. thank you!
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It's not possible, at least on phones. Each specific submodel likely has different amps for whatever bands that submodel supports. They're (very likely) physically different.
Related
I got the Topaz from Europe, and I tried several ROMs but I just can't get it connected to the US 3G network. I heard the band is different, but is there any way that could possibly solve this problem?
Thanks so much in advance.
Also, is there a "2G" version of Topaz? If so, how can I tell if my phone is 3G or not?
No way to make it work, although if you are on att, you may get hsdpa in the few areas that actually have it. not sure what you mean by 2G, but it should connect to EDGE just fine
steamduck said:
Also, is there a "2G" version of Topaz? If so, how can I tell if my phone is 3G or not?
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Take a look a the band located in your phone's option section. 3G would work if UMTS is 850, 1900 coupled with WCDMA
Hello,
i've got a Germany Topaz with an original O2 Rom (6.5), and am currently in New York. I've inserted an ATT sim card, and the topaz came up asking whether it should install the ATT settings, which it then did.
I'm able to get a connection fine, but only with Edge, not 3G. The whole greater Manhattan area is 3G covered, so i should be getting a faster connection.
I'm wondering whether there is something i need to do to activate 3G? Anyone have any ideas why i can't get a 3G connection?
thanks.
Doesn't O2 Germany use 900MHz UMTS, not 850MHz & 1900MHz as AT&T? So your Topaz is likely not an 850MHz (& 1900 MHz) UMTS model - will be able to use only GSM.
Ok, thanks for that. But i thought the Topaz has the same frequencies as the Germany Kaiser, and i used that 2 years ago in California, with ATT, and had 3G almost always. Strange.
You are aware that there is a variety of models/frequencies specific to local markets?
What is the model shown under the battery: eg TOPA110 T5362?
Then do a search for that model and compare with the (UMTS/HSDPA, not GSM) specs for AT&T Pure:
eg http://www.pcmag.com/article2/0,2817,2353835,00.asp
My Aria doesn' t pickup 3G connection i am using at&t rom until I can root it does anyone know if the problem is because os AT&T software I am connected to Portuguese carrier TMN.
The AT&T version of the Aria does not support the 3G frequencies that TMN uses. This basically means there is no way to get 3G data speeds with this phone on that carrier. However you should be able to get 2G data and voice calls without a problem.
Unfortunately installing a new ROM will not fix this issue. There's nothing you can do about it.
And is there any chance of changing the radio firmware so it would support it?
klauszlion said:
And is there any chance of changing the radio firmware so it would support it?
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Nope, sorry. It's a difference in the hardware, not the software.
There are two "versions" of the HTC Aria/Liberty/Gratia. The A6366 which is the AT&T Aria and supports 850/1900MHz 3G bands, and the A6380 which is called Aria or Gratia depending on the region and supports 900/2100MHz 3G bands. It should say underneath the battery which version you have if you want to be certain. You would need the A6380 to get 3G to work in your area.
Does anyone know if the Verizon Trophy will do CDMA on AWS with the correct PRL on any of the available radio software?
Also is there a app or a way to show cdma call info such as channel, PN, rssi?
http://www.microsoft.com/windowsphone/en-us/buy/7/details.aspx?id=1685
It says "HSPA:AWS 2100" and that is the GSM Trophy. I think its safe to assume that the Verizon model supports it as well + CDMA.. but.. well.. AWS is new one on me. I won't pretend to fully understand what your talking about. XD *haha* I better go do some reading.
TheXev said:
http://www.microsoft.com/windowsphone/en-us/buy/7/details.aspx?id=1685
It says "HSPA:AWS 2100" and that is the GSM Trophy. I think its safe to assume that the Verizon model supports it as well + CDMA.. but.. well.. AWS is new one on me. I won't pretend to fully understand what your talking about. XD *haha* I better go do some reading.
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AWS is advanced wireless services. It's the FCC name for the band of spectrum the 1700 and 2100mhz range.
What I'm not really sure about is if the same radio is used for both CDMA and HSPA. The phone can do AWS if using HSPA, but it uses the cellular and PCS bands for CDMA. (800 and 1900mhz)
The issue is that the radio need to be programmed for those bands and there is hardware needed to make it happen. So a phone programmed for 800mhz can't just switch to 2100mhz unless there is hardware present.
The Verizon version of the phone might just have an extra radio thrown into the case that operates seperatly from the GSM one. If that is the case then it wouldn't be possible to use CDMA on that frequency. If it's all tied into the same radio then it seems like it could be done in software. In either case I'm not sure if will ever happen because you'd probably need to write your own firmware to do so. (It really wouldn't make sense for HTC to waste time seeing if the phone would do CDMA on 2100 if it wasn't designed to)
For reference there is a great article covering the bands here:
http://www.phonescoop.com/articles/article.php?a=99
There is also the full version of the spectrum chart online here: http://www.ntia.doc.gov/files/ntia/publications/2003-allochrt.pdf
There is a dev screen you can get to on the phone to show signal strength and a few other options. If you dial ##634# you can select field trial. You can see Channel #, band class, Active Set Pilot PN, Rx Signal Strengh, Rx Power (dbm) under the EVDO screen. There is also a section for 1x and GPS. I'm not sure if another option shows up for HSPA if the phone is on GSM...
EDIT: The best I can tell is that AWS uses UMTS/WCDMA so the phone should support that. HSPDA is just a faster version of WCDMA so since the phone can do HSPDA on 2100mhz it would be able to slow down to WCDMA speeds. The only time I could see it possibly being an issue is if CDMA was being used on 2100mhz and not UMTS.
Only thing I am seeing inside of the newest Verizon Trophy software (mango v3 8107) is that they added support for CMAS.
Code:
[HKEY_LOCAL_MACHINE\Software\Microsoft\ShortMsg\Settings]
"CmasOperatorEnabled"=dword:1
[HKEY_CURRENT_USER\Software\Microsoft\ShortMsg\Settings]
"CMASAlertOption"=dword:1
[HKEY_CURRENT_USER\Software\Microsoft\SMS\Broadcast]
"TestPort"=dword:4370
As for radio, there is only one radio software.. but from what I can tell, the CPU/radio has all the same support as the Trophy GSM, but with the added CDMA. AWS should work, but only via GSM bands.
hi
i have here few PCS of S5630L
its same phone but bands are not the same.
HSDPA 7.2 850/1900MHz
anyone think it can be changed via software ? or its a hardware issue ?
if so can i change bands filters ?
thx
anything ? anyone ?
it can never be done,
it is the internal radio which transmits and receives frequencies,
which is a hardware thing,
if i got you correctly S530L is CDMA and you want a GSM band
deathnotice01 said:
it can never be done,
it is the internal radio which transmits and receives frequencies,
which is a hardware thing,
if i got you correctly S530L is CDMA and you want a GSM band
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This model is not cdma, irs gsm model fits to some countries like brazil and argentina.
so this phone works only on quad gsm 2g network with no, but on 3g networks it works only on 850/1900 and i need 2100
On older nokia phones we changed anttena duplexer and bands filters and it did the job.
On newer phone like i9000 we can change bands via programing menu.
I just wonder if it can be done even with hardware changes.
Thanks
Anyone ??
I tried *#*#197328640#*#* but not working