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[Q] Data usage/frequency (3G)

I got Nexus S on ATT and I have tried it with a TMobile SIM (got surprised because phone isn't locked...) but it works on 2G only.
I'm wondering if it will work properly (as 3G) in Europe. Does it cover 900 and 2100?
What is ATT's data frequency? Is it 2100?
thanks !

I'm gonna reply to my own topic: according with Wiki ATT uses 850 MHz and 1900 MHz for UMTS (3G) that means ATT (unlocked) phone will work as 2G in Europe (2100 MHz)
On the other hand, T-Mobile's frequencies are 1700 MHz (uplink) and 2100 MHz (downlink).
Does it mean a T-Mobile phone will be able to work properly on Europe's 3G networks (2100 MHz?

3G frequencies

I have a question about 3g frequencies among all carriers. If I have a device for example which supports these Frequencies
Device:
2G Network GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 850 / 1900 / 2100
And say I wanna use this device on T-mobile
T-Mobile USA 850/1900 for 2G/EDGE - 1700/1900 3G/HSPA
And I am only receiving EDGE on T-mobiles network is this because I am missing the 1700 frequency on my device? For all carriers listed 3g frequencies must the phone your using have both those frequencies to be able to get a 3g signal?

Chinese phones on T-Mobile?

Hi guys,
I'm hoping someone can give me a for sure answer on this. I have a company we met at CES offering me some chinese cell phones. Basically they are an S4 knock off. I have definitely decided against selling these, but since I have a really old phone... I'm thinking about buying one for myself to play with.
I am currently on the t-Mobile network. Here is what their website says about "bands"
T-Mobile's UMTS network operates in Band IV, which uses 1700 MHz and 2100 MHz frequencies. Specifically, T-Mobile uses the 1700 MHz frequency to send information to cell sites and then uses the 2100 MHz frequency to receive information. A device must be able to use both frequencies to use T-Mobile's domestic UMTS network.
Most international UMTS networks operate in Band I, which uses the 2100 MHz frequency.
Click to expand...
Click to collapse
and here is the information about the phone:
MS mode: WCDMA/GSM
Frquency band: WCDMA 2100/850 (HSDPA) and GSM 850/900/1800/1900
Wireless transmission: 3G, WIFI 802.11b/g/n, Bluetooth 2.0, EDGE, HSDPA, HSUPA,
Click to expand...
Click to collapse
Everything sounds like it should work, but the concern is the 850/2100 on WCDMA. T-Mobile claims it uses 1700/2100.
For comparison, here is the t-Mobile Nexus 4
GSM:850, 900, 1800, 1900 MHz
UMTS: 850, 900, 1700/2100, 1900, 2100 MHz
Data:HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS, EDGE, GPRS
Click to expand...
Click to collapse
I do understand that the chinese phone is only 3G, and the Nexus I compare to is 4G.

According to what I just read on another tmousa page (which agrees with your quote) their data (3g, 4g, and lte) all work on 1700/2100 as of this date of posting.
From your quote about your phone, it operates on gsm 1800/1900. That does not match with tmo.
I know you probably already figured this out, but I am searching on same subject, so others will follow.
Blessings!

How compatible frequencies/bands with Tmobile?

This may have been answered elsewhere, but I can't find it.
Just trying to understand something. I'm wondering if I can get a better signal with Tmobile if I use a phone that has a 1900 band on the 4G network. What I'm saying is, it looks like the Skyrocket doesn't support Band 2 for LTE on Tmobile's network. Is this correct? Does flashing your radio affect which bands you use for 3G vs 4G?
I'm supposedly "in the service area" for LTE on Tmobile, is why I ask, but I have never gotten a signal until I go closer to town. I'm within the edge of the "coverage" map. I realize those maps are optimistic. Have always used this phone here, but ATT works for people and the towers are in the same location as far as I know. Rural area.
Thanks for any help :fingers-crossed:
Skyrocket's bands are:
i727(r) freg's:
2G Network GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 850 / 1900 / 2100
4G Network LTE 700 MHz Class 17 / 1700 / 2100
Tmobile uses:
LTE Frequencies:
1700 MHz & 2100 MHz AWS band 4
1900 MHz PCS band 2 (in refarmed areas)
Lower 700 MHz band 12 (in development) / in service in selected areas
3G/4G Frequencies (WCDMA):
1700 MHz & 2100 MHz AWS band 4
1900 MHz PCS band 2 (in refarmed areas)
2G Frequencies (GSM/GPRS/EDGE):
1900 MHz PCS band 2

Does the Skyrocket have a 1900 LTE Band?

From the [REF] 1-stop Thread:
Skyrocket's bands are:
i727(r) freg's:
2G Network GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 850 / 1900 / 2100
4G Network LTE 700 MHz Class 17 / 1700 / 2100
It looks like the Skyrocket doesn't use 1900 on LTE? Is that correct?
The reason I ask is because I'm on T-Mobile, and in my area, I can't get 4G inside some of the coverage map. I am assuming that I don't get Band 2 for T Mobile, which uses 1900 Mhz PCS. However, Tmobile also uses 1900 for 2G and 3G, which the Skyrocket supposedly supports. Am I missing something? Thanks. :good:
Tmobile uses:
LTE Frequencies:
1700 MHz & 2100 MHz AWS band 4
1900 MHz PCS band 2 (in refarmed areas)
Lower 700 MHz band 12 (in development) / in service in selected areas
3G/4G Frequencies (WCDMA):
1700 MHz & 2100 MHz AWS band 4
1900 MHz PCS band 2 (in refarmed areas)
2G Frequencies (GSM/GPRS/EDGE):
1900 MHz PCS band 2

rocinante1984 said:
From the [REF] 1-stop Thread:
Skyrocket's bands are:
i727(r) freg's:
2G Network GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 850 / 1900 / 2100
4G Network LTE 700 MHz Class 17 / 1700 / 2100
It looks like the Skyrocket doesn't use 1900 on LTE? Is that correct?
The reason I ask is because I'm on T-Mobile, and in my area, I can't get 4G inside some of the coverage map. I am assuming that I don't get Band 2 for T Mobile, which uses 1900 Mhz PCS. However, Tmobile also uses 1900 for 2G and 3G, which the Skyrocket supposedly supports. Am I missing something? Thanks. :good:
Tmobile uses:
LTE Frequencies:
1700 MHz & 2100 MHz AWS band 4
1900 MHz PCS band 2 (in refarmed areas)
Lower 700 MHz band 12 (in development) / in service in selected areas
3G/4G Frequencies (WCDMA):
1700 MHz & 2100 MHz AWS band 4
1900 MHz PCS band 2 (in refarmed areas)
2G Frequencies (GSM/GPRS/EDGE):
1900 MHz PCS band 2
Click to expand...
Click to collapse
idk know the specific answer but our sister phone is the hercules t989 for use on tmobile and it does support lte and/or 4g
did u try the hercules t989 modems