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[Q] aonly working in 2G mode in Mexico

Hi All,
I recently bought a HTC-Sensation 4G from T-Mobile Store in US.
I also purchased an unlock code in the internet.
Getting to Mexico I started the phone and the voice portion worked great...
BUt Data only hooks up at 2G speed, I have a 3G with unlimited data plan...
I have a friend who has an HTC-INSPIRE and his does hookup at HSPA/HSPA+ (3G).
I was told buy a compnay in Mexico that sell a version of the sensation 3G, which they say does have 850 MHZ radio, that T-Mobile Sensations does not have the 850MHZ Band required...
But in various sights I have seen the spec and it says I qoute "Bands 850, 900, 1800, 1900, 2100, 1700"
I have checd the settings menu etc.. and have not found anywhere to change the setting... can someone help?
Thanks,
Peter Fraga

PeterFraga said:
Hi All,
I recently bought a HTC-Sensation 4G from T-Mobile Store in US.
I also purchased an unlock code in the internet.
Getting to Mexico I started the phone and the voice portion worked great...
BUt Data only hooks up at 2G speed, I have a 3G with unlimited data plan...
I have a friend who has an HTC-INSPIRE and his does hookup at HSPA/HSPA+ (3G).
I was told buy a compnay in Mexico that sell a version of the sensation 3G, which they say does have 850 MHZ radio, that T-Mobile Sensations does not have the 850MHZ Band required...
But in various sights I have seen the spec and it says I qoute "Bands 850, 900, 1800, 1900, 2100, 1700"
I have checd the settings menu etc.. and have not found anywhere to change the setting... can someone help?
Thanks,
Peter Fraga
Click to expand...
Click to collapse
Sorry, but the US T-Mobile Sensation does not have the 3G 850 frequency. You can't change it. It does support 2G 850, which may be part of the confusion in the frequency listings you've seen. About your only option is to sell it and get the Mexico compatible model.

Your only way arround it is to sell it and get the sensation from bell canada.
Sent from my HTC Sensation 4G using XDA App

PeterFraga said:
I was told buy a compnay in Mexico that sell a version of the sensation 3G, which they say does have 850 MHZ radio, that T-Mobile Sensations does not have the 850MHZ Band required...
But in various sights I have seen the spec and it says I qoute "Bands 850, 900, 1800, 1900, 2100, 1700"
Click to expand...
Click to collapse
Buyer beware.
Lesson one: Every modern phone out there now has quad-band GSM, and will list "850, 900, 1800, 1900" in its frequency list. You know they're talking about GSM (2G) when you see that string of four numbers, because 1800 is a 2G-only band which has never been used for 3G.
Lesson two: If a phone has 850 MHz 3G, you will see the number 850 repeated twice in its band list.
For example:
GSM 850/900/1800/1900 UMTS 850/1900 <--- Yes, buy this phone, because you can see 850 repeated twice.
GSM 850/900/1800/1900 UMTS 900/2100 <--- No, do not buy this phone, because 850 is listed only once and it's under GSM.
Lesson three: If the only band info you can find is 850/900/1800/1900, then the seller is a lazy douchebag who can't even bother to give you the 3G information you need to know.

Forcing a Sensation Tmous 4G to 850mhz..?

I've seen that a few samsungs and european HTCs can do this through service mode, but is there any way to force the Sensation 4G to 850mhz? according to HTC, the modem in the phone does support AT&T frequencies and the carrier with the best connection only supports 850mhz in my country, and i reeeally don't want to buy a new phone.
i know it's a longshot, but it's worth trying.

Be careful, you don't want to ruin your device. Watch for overheating. Watch for force closes. Any signs And go back to normal. Be very cautious overclocking that much
Sent from my Sensation 4G using xda premium

Its not overclocking, its trying to get one of the cellphone frequencies.
FG

realsis said:
Be careful, you don't want to ruin your device. Watch for overheating. Watch for force closes. Any signs And go back to normal. Be very cautious overclocking that much
Sent from my Sensation 4G using xda premium
Click to expand...
Click to collapse
i'm not talking about overclocking, it's the data modem, to put it simply, i need to be on AT&T frequencies but my phone is T-Mobile, and i've seen people change it according to their region. is it possible on the Sensation?

Well for starters the only way you would be able to operate on that frequency one your device has to be carrier free meaning unlocked from all gsm carrier's and this will allow your device to operate on that frequency meaning all you would have to do is swap sim cards if your device is carrier free and then you be able to put in AT&T sim card and reboot however you can't do this unless you are carrier free
sent from my sensation 4g using xda premium

The Sensation supports 850mhz for gsm. It does not support 850mhz or 1900mhz hspa (at least the us version does not support 1900 hspa, having aws instead).
So if you are using an att sim and want 850mhz, you would have to switch it to gsm only (although it'd only work with gsm anyway since att uses 850/1900 for hspa iirc, or maybe just 1900?).
Even then, it'd choose between 850 and 1900 depending on signal / area, etc.

ziddey said:
The Sensation supports 850mhz for gsm. It does not support 850mhz or 1900mhz hspa (at least the us version does not support 1900 hspa, having aws instead).
So if you are using an att sim and want 850mhz, you would have to switch it to gsm only (although it'd only work with gsm anyway since att uses 850/1900 for hspa iirc, or maybe just 1900?).
Even then, it'd choose between 850 and 1900 depending on signal / area, etc.
Click to expand...
Click to collapse
meaning my sensation is confined to EDGE speeds on said networks??

Compatible networks GSM/GPRS/EDGE
850 900 1800 1900 MHz
UMTS/HSPA
850 1900 2100 or 900 1700 2100 MHz
HSDPA 14.4 Mbps
HSUPA 5.76 Mbps
tmo version supports 900/1700/2100.
looks like the other version not available in america supports 850/1900/2100 for umts.
not sure if there's any difference in hardware or if it's defined in software (not a part that's included in ruu's).

ziddey said:
Compatible networks GSM/GPRS/EDGE
850 900 1800 1900 MHz
UMTS/HSPA
850 1900 2100 or 900 1700 2100 MHz
HSDPA 14.4 Mbps
HSUPA 5.76 Mbps
tmo version supports 900/1700/2100.
looks like the other version not available in america supports 850/1900/2100 for umts.
not sure if there's any difference in hardware or if it's defined in software (not a part that's included in ruu's).
Click to expand...
Click to collapse
Its a difference in hardware. The Canadian Bell version supports 850/1900 (AT&T Frequencies) You can use the T Mobile version but you will be limited to edge/2G only.

which 3g bands SGH-T959V has?

Hi all
I just bought new unlocked Samsung Galaxy S 4G (SGH-T959V) on the internet and before to talking to possible providers I got confused about its 3G bands. I've got two specs with different bands:
one says it has 1700/1900/2100 (e.g. see pdadb.net)
another says it has only 1700/2100.
How do I check which 3G bands my phone really has? Is there any way to check it using the phone itself? Like test software or something?
Thank you

From http://www.gsmarena.com/samsung_galaxy_s_4g-3719.php
2G Network GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 1700 / 2100
Perhaps that is some of the confusion about bands; 1900 is also a GSM band.
T-Mobile, for better or worse, uses the AWS bands, which results in its handsets having a different set of requirements than other carriers.

I've used an AT&T SIM in my SGS4g and was able to get 3G, so I'm fairly positive the phone also has the 1900 HSPA band.

Wikipedia says T-Mobile has 1900 in both GSM and 3G

I dont know what bands they use but I use simple mobile unlimited 3g for $40 or unlimited 4g for $60....$20 sim with free activation. SimpleMobile uses tmobile network
Sent from my SGH-T959V using xda app-developers app

[Q] Could someone please explain Cellular bands that I can use in Australia?

Hi guys,
I'm looking to buy a Galaxy SIII from the States to use here in Australia, and am having a hard time understanding the intricacies of the cellular bands. I get that CDMA stuff is a no go (Verizon, Sprint) and that it seems only TMobile and AT&T are possibilities. Here is a chart with the variants and their banding listed. http://en.wikipedia.org/wiki/Samsung_Galaxy_S_III
The variants support all 2g frequencies, but I don't understand how the 3g part works. The t-mobile one in the 3g band is
850, AWS (Band IV), 1,900, 2,100 MHz UMTS / HSPA+ / DC-HSPA+
Click to expand...
Click to collapse
, which doesn't include the 900 that some networks use here. Will the phone use only 2G if this is the case? Will that make any difference to me? Will the AT&T one work as well?
Can someone please give me some clarification? :victory:
Below is the info for Aus carriers...
2G
2G, other wise known as GSM, is standard on almost all phones (except CDMA phones in the USA). Most new phones come with quad band GSM support. A quad band GSM phone supports 850, 900, 1800, and 1900MHz.
2G is old technology and provides a fall back position when 3G coverage is unavailable.
Australian 2G bands:
900Mhz (Telstra, Optus & Vodafone)
1800Mhz (Telstra, Optus & Vodafone)
3G
There are several 3G networks operating in Australia. 3G frequencies are usually specified as UMTS/HSDPA or WCDMA frequencies on the mobile phone specifications.
Australian 3G bands:
850MHz (Telstra, Vodafone) – Exclusive 3G band
900MHz (Optus, Vodafone) – available in most metro areas on Optus, with both Optus and Vodafone re-farming the 2G 900 spectrum in regional and rural areas
2100MHz (Telstra, Optus, Vodafone) – Exclusive 3G band

Which canadian networks will work with Xperia Z3 dual D6633?

I got the Dual Xperia Z3 today, I have a number with Wind and number with Virgin mobile here in Canada.
I installed both nano sim cards in the device but it wont allow me to use both at the same time. If I turn on one, the other goes off, if I turn on the other one, the first one goes off.
The device tells me one can do data while the other does gsm only, both carriers use gsm, so whats up? why am I not allowed to use both cards at the same time?
I just want one for data (obviously), but I want to be able to send/receive messages and calls for both.
I s that not possible?

Just found this:
Apparently only Rogers or Fido (rogers is the worst at scamming their costumers) use those bands.
For the unlocked (international) fans - The big three Canadian network frequencies
Partial C/P from http://www.tintedgreen.net/guide-will...
Telus (including Koodo)
2G
CDMA 850/1900
EVDO 850/1900
3G (and fake 4G)
HSDPA 850/1900
HSPA+ 850/1900
UMTS 850/1900
WCDMA 850/1900
1x EV-DO CDMA2000
4G (called 4G+)
LTE 1700/2100
Bell (including Virgin Mobile, PC Mobility)
2G
CDMA 850/1900
EVDO 850/1900
3G (and fake 4G)
HSDPA 850/1900
HSPA+ 850/1900
UMTS 850/1900
WCDMA 850/1900
1x EV-DO CDMA2000
4G
LTE 1700
Rogers (including Fido, Petro-Canada Mobility)
2G
GSM 850/1900
GPRS 850/1900
EDGE 850/1900
3G (and fake 4G)
HSDPA 850/1900
HSPA+ 850/1900
UMTS 850/1900
WCDMA 850/1900
4G
LTE 1700

virgin isnt gsm