Hello everyone,
"The LTE standard can be used with many different frequency bands. In North America, 700 and 1700 MHz are planned to be used; 800, 1800, 2600 MHz in Europe; 1800 and 2600 MHz in Asia; and 1800 MHz in Australia. As a result, phones from one country may not work in other countries. Users will need a multi-band capable phone for roaming internationally." (en.wikipedia.org)
So far, I have not heard of any LTE cell phone able to adapt to this multi-frequency international situation.
Even within the USA, it does not seem possible for an unlocked LTE cell phone which has been bought through one carrier to be used with another one.
Well, it should be possible !
After all, LTE is an international standard supporting all frequency bands, flexible bandwidth and both FDD and TDD duplexes ...
So it might not be that difficult to make these phones be able to use different LTE frequencies.
All radio systems can easily scan the whole spectrum in order to settle on the next available or desired channel. Another example, on Android Gingerbread phones :
"Settings-->Wireless & Networks-->Mobile Networks-->Network Operators--> Search Network" shows you all the mobile carriers available in your area, offering you the possibility to manually register on a specific network.
All this means that it should be technically possible to buy an unlocked LTE cell phone in the US for example, buy a sim card in another country where the LTE frequency is different, and everything should work fine, maybe with some software tweak.
Has anybody tried this already ?
Quick question, im looking into buying a cheap chinese phone because 1, im not picky about being top of the line, and 2, because its inexpensive. But ive been looking into and around the internet for supporting information stating if these chinese phones work on Tmobil, AT&T, Net 10 or Striaght talk. Here is the general break down fo these phones
Operation System: Android 4.0
·4.3 inch Capacitive Multi-touch screen, QHD (540*960)
·CPU:MTK6575 CPU 1GHZ Dual core
·Quadband: GSM 850/900/1800/1900MHz 3G WCDMA 900/2100MHz
Id like to know if this type phone would work with the above companies with both talk/txt/mms but also with 3g full US coverage. Thanks in advance
-Nick
Compare the GSM and 3G bands with a well known model at USA
But I cant get a straight answer out of anybody...
I know that the talking/txting/mms will work on the GSM bands provided but its the 3g that im thinking about
I see different things all over the place; some phones are 800/2100, 850/2100, 900/2100, and 1700/2100. The 2100 is prob the only consistent band, but i dont know if, say, 900 correlates to western US and 2100 correlates to eastern half. OR the 900 and 2100 cover ALL of US and you need just one of them. Besides that, several phones on I think tmobile such as the HD7, here's a link to what I mean,
http://www.gsmnation.com/htc-hd7-tmo.html
The top says 1700/2100 but the description states 900/2100 for 3g?!?
Heres a link to one of the phones I was talking about that I was looking into
http://www.fastcardtech.com/goods-7...ouch+Screen+WIFI+G-sensor+3G+smart+phone.html
Thanks,
Rico
Any thoughts on if this phone covers AT&T or Tmobile? Id appreciate any help, thanks guys
Rico
For AT&T, the band is 850/1900 MHz for both GSM and WCDMA 3G. For T-Mobile 850/1900 MHz GSM and 1700 MHz for WCDMA 3G. If your phone is WCDMA 900/2100, 3G will not work for both AT&T and T-mobile. You must have at least one band that matches with your network. For best 3G coverage, both bands must be supported by the phone.
Have a look at this phone with WCDMA 2100MHz (800/850/1900 optional) here: www.chinaphonereview.com/samhave-aone-shanghe-a1
Also look at these phones that have 850/2100 WCDMA bands: www.chinaphonereview.com/zopo-zp100 and www.chinaphonereview.com/zopo-zp200.
Cool, thanks for the link man, I like the ShangHe Aone 3G Android 4.0 you recommended. Do you know of any others? Im just looking for android 4.0 and a nice (not super nice) 4.3'' screen. I was also looking into an Ezio H7 but its android 2.3 and im not sure of the screen quality. Any thoughts? thanks in advance.
I also found these phones with 850/2100 MHz WCDMA bands: Star Xperia S LT26 and THL V9.
The THL V9 has a 4.3 inch screen with qHD resolution (960 x 540 pixels) and Android 2.3 but I think it has already an Android 4.0 update. You might want to check it out.
I was looking into those as well as IHTC 310x or something like that, but the 3g bands are 850/2100 but i need 850/1900. Any other phone references you know of?
Thanks y'all
nick
Hell, ill take a phone with 1700/2100 bands too... if they exist... which i doubt in china.
Most Chinese phones I know are 850/2100 or 900/2100. The ShangHe Aone may be the only dual SIM phone with optional 850/900/1900 bands.
The Meizu MX has a WCDMA/HSDPA band of 850/900/1700/1900/2100 MHz. This phone is high-end, with dual core 1.4 GHz CPU. It also has a quad core version named Meizu MX Quad-Core. Both are very affordable for their specs.
Anyone make any progress in getting this figured out? I've been looking into buying a chinese phone to use on t mobile and it looks like most of them operate WCDMA for 3G speeds, which won't work on t-mobile. Does anyone actually have one now that they're using?
Seany D said:
Anyone make any progress in getting this figured out? I've been looking into buying a chinese phone to use on t mobile and it looks like most of them operate WCDMA for 3G speeds, which won't work on t-mobile. Does anyone actually have one now that they're using?
Click to expand...
Click to collapse
you need one with both 1700 and 2100 in order to get 3g hspa unless your in a coverage area where tmo already supports 1900. in some areas where im at people i know with crapple iphones get 3g where tmo has refarmed thier netwok they are working on getting this frequency to more areas so its wait and see
Seany D said:
Anyone make any progress in getting this figured out? I've been looking into buying a chinese phone to use on t mobile and it looks like most of them operate WCDMA for 3G speeds, which won't work on t-mobile. Does anyone actually have one now that they're using?
Click to expand...
Click to collapse
Simple answer....NO
I too was looking to buy a chinese phone with hope that I would be able to get 3G on Tmobile. Tmobile's 3G unfortunately runs on the 1700 MHz band. If you don't see that band in the phones description you will only get 2G aka EDGE network on TMobile.
So this phone wouldn't work with Tmobile?
http://www.aliexpress.com/item/DHL-...00-phone-for-n7100-smart-phone/737394584.html
PRODUCTION INFO
Model
for N7100
Network
GSM 900/1800 MHZ /GSM850/1900MHZ
WCDMA 2100MHZ /900 MHZ
Processor(CPU)
MTK 6577 1.2GHz Cortex A9 Dual Core
I don't know for America, and I am not a techie myself, but from what I understand, you have to look at the frequencies the phone proposes.
In Belgium, 3G works on 900 / 2100 MHz, if the phone doesn't support this, you will fall back to 2G.
for the example above
Tmobile's 3G unfortunately runs on the 1700 MHz band
Click to expand...
Click to collapse
GSM 900/1800 MHZ /GSM850/1900MHZ
WCDMA 2100MHZ /900 MHZ
Click to expand...
Click to collapse
-> looks like you will be falling back to 2G :/
It will work
airnique23 said:
Simple answer....NO
I too was looking to buy a chinese phone with hope that I would be able to get 3G on Tmobile. Tmobile's 3G unfortunately runs on the 1700 MHz band. If you don't see that band in the phones description you will only get 2G aka EDGE network on TMobile.
Click to expand...
Click to collapse
In addition to 1700 MHz, T-Mobile also supports 2100 MHz so 3G will work where you get 2100 coverage in USA.
Source: .worldtimezone.com/gsm.html
iamrico00 said:
Quick question, im looking into buying a cheap chinese phone because 1, im not picky about being top of the line, and 2, because its inexpensive. But ive been looking into and around the internet for supporting information stating if these chinese phones work on Tmobil, AT&T, Net 10 or Striaght talk. Here is the general break down fo these phones
Operation System: Android 4.0
·4.3 inch Capacitive Multi-touch screen, QHD (540*960)
·CPU:MTK6575 CPU 1GHZ Dual core
·Quadband: GSM 850/900/1800/1900MHz 3G WCDMA 900/2100MHz
Id like to know if this type phone would work with the above companies with both talk/txt/mms but also with 3g full US coverage. Thanks in advance
-Nick
Click to expand...
Click to collapse
also remember when buying chinese phone, their government doesn't allow google or ggogle play store to be installed stock so you will have to root it and manually install this also
Techminator said:
In addition to 1700 MHz, T-Mobile also supports 2100 MHz so 3G will work where you get 2100 coverage in USA.
Source: .worldtimezone.com/gsm.html
Click to expand...
Click to collapse
This is not entirely correct. Part of T-Mobile's HSPA network operates on the hybrid AWS 1700/2100 Mhz frequency where one part is uplink and one downlink, which is not the same as operating solely on 2100 Mhz frequency like many of the Chinese phones work with and many other countries use. They are not compatible.
However, that being said, their HSPA network also works on the 1900 Mhz frequency in most major metro areas of the US now as well as many other parts and many of the world phones do support that.
Ive got a T-mobile Optimus T LG P509. Its been unlocked and im now using it on the ATT network. Ive been told that ATT and T-mobile Operate on different frequencies, and that it is impossible for me to get 3g signal on the p509; is this correct?
AT&T 3G frequency bands are 850/1900 MHz while Optimus T supports 1700/2100 MHz so it should not work.
AT&T 3G Bands
OptimusT 3G Bands
Hello, good afternoon. Sorry for my English, I'm using Google Translate, haha.
I have the model 802. Is there the possibility of other frequency bands enable him to work 4G / LTE? For those who have not served enabled to use the 4G / LTE in Argentina.
802 bands are 800/900/1800/2600 Cat.4 LTE, and Argentina operate the 1700/2100 Mhz and 700 Mhz.
Anyone can give us a hand?
regards
Try reading this link, our g2 have a qualcom chip so it MAY work.
http://www.xda-developers.com/remove-band-restrictions-qualcomm/
Hello everyone ... I bought a Moto E XT1524 in Spain. The phone works on 3G bands 900 and 2100. In Argentina, the country where I live now, the 3G bands are 850/1900. Because of this my phone only works in 2G. Looking I found this post http://forum.xda-developers.com/moto-g/general/unlock-hspa-bands-moto-g-1700mhz-xt1032-t2878441 that explaining how to unlock bands. The question is whether you know if the phone will have this possibility. I mean, if the chipset supports these bands and doing the procedure will fix my problem. Or definitely is a limitation of hardware.
Thanks!!!
I assume that the hardware is the same between phones, and that the radio bands are set by firmware. If I'm right about this, you would need to flash firmware on your phone that supported the bands that you want. However I am only guessing about this.
pablo_cba said:
Hello everyone ... I bought a Moto E XT1524 in Spain. The phone works on 3G bands 900 and 2100. In Argentina, the country where I live now, the 3G bands are 850/1900. Because of this my phone only works in 2G. Looking I found this post http://forum.xda-developers.com/moto-g/general/unlock-hspa-bands-moto-g-1700mhz-xt1032-t2878441 that explaining how to unlock bands. The question is whether you know if the phone will have this possibility. I mean, if the chipset supports these bands and doing the procedure will fix my problem. Or definitely is a limitation of hardware.
Thanks!!!
Click to expand...
Click to collapse
http://forum.xda-developers.com/cro...ad-progress-please-leave-im-updating-t2871269
Good luck and expect a modem brick.