Database Info

3g WCDMA

It is my understanding that the 3g network coming out in the USA from T Mobile is WCDMA which is a duel band 1700/2100 system where as the European system is 1900/2100 meaning that the tri band phones ( my TYTN II ) will not work on this new 3g system. Is there any way to change my phone to 1700/2100 from 1900/2100. The duel bands are one for uploading to the tower and the other to download to the phone. In the USA the 1900 band is used for pda service thus T mobile is going with the 1700 band.

[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

[Q] M2 Dual (D2302): Does it actually support four 3G bands?

I bought an M2 Dual (D2302) so that I can use it mainly in Europe BUT I want to have 3G reception while traveling in the USA. The phone is supposed to be quad-band in 3G (900/2100 for Eurasia and 850/1900 for the vast AT&T network in the States). It says that it is quad-band 3G on the box, it says so in the official whitepaper, it even says so in the FCC testing report...BUT...when I enter the service menu it indicates that the phone only has 900/2100 in 3G! So, does it support the "missing" 850/1900 UMTS bands or I'll be stuck in GSM-only while in the USA?
Screenshot of the Service Menu:
http://postimg.org/image/b3e5updgt/

[Q] Confused about bands in the DR - will this work on 3G or only EDGE on Claro ?

Will this phone work with 3G speeds or only EDGE? Amazon Link.
From what I can gather, Claro frequencies are as follows:
CDMA 1xEV-DO in 800/1900 MHz
GSM/GPRS/EDGE in 850/1900 MHz
UMTS/HSDPA service in the 850 MHz band
This phone shows:
Network Frequency
- 2G: GSM 850/900/1800/1900Mhz
- 3G: WCDMA 850/2100Mhz
It doesn't show anything for UMTS, which a friend is insisting is needed for anything better than EDGE speeds.
Is this true? I am buying as a gift and the current phone the guy is using is capable of 3G speeds there. I wouldn't want to give him something slower, as he uses Whatsapp and stuff like that a lot.
Thanks for any help, I searched for about an hour before I gave up and decided to ask.

T-Mobile FREQ that work.

Just wanted to post this as I'm at T-Mobile user and just recently found out that they also use Band 5. So we will be able to use at least Bands 2, 4, 5, and 12. T-Mobile LTE Bands Now what would be awesome would be able to add band 66 or even convert a band. Now sure if thats possible, just wishful thinking.

Been reading about tmobil and sprint for assurance wireless all day just seen your post thank you. Trying to port number to k40 phone but uses sprint towers and sim but am getting closer and closer. Useful info. Here is the site info I found right before this post:
In most markets the T-Mobile 3G / 4G network operates in the Advanced Wireless Services (AWS) 1700/2100 MHz band and/or the Personal Communications Services (PCS) 1900 MHz band using Universal Mobile Telecommunications System (UMTS) and High Speed Packet Access (HSPA) technology. T-Mobile also operates in the 700 MHz band in some markets. 5G devices on T-Mobile’s network must support either 660 MHz (low-band) or 28/39 GHz (mmWave). In order to connect to the T-Mobile 3G / 4G network a device must support UMTS and HSPA technology in the AWS 1700/2100 MHz band and PCS (1900) band. The T-Mobile 2G network operates in the Personal Communications Services (PCS) (1900) band. To connect to this network a device must support GSM technology in the PCS 1900 band
so now i know which towers sprint and assurance can work on for on this much beter phone once i change some settings which i am hoping can be done all by using the built in phone code and changing the settings and adding a custom rom recovery with the use of no PC via ENGINEERING MODE. Any ideas or thoughts, or should I not have wasted your time.