I just checked the t-mobil 4g/LTE bands and it covers 2100 frequencies. How come some people say they can't use this device under t-mobile's 4G?
1258196
This device is just useless. I am not able to use it almost anywhere and worst, the 3G / HSDPA frequencies are useless so, if you don't get 4G you are dumped into EDGE! Stay away from it.....I fully regreat to have purchased one.
1923206
Hi. My Phone has not a Tmobile service. I am from Venezuela. It is work very well in 3G speed with Digitel.
334212
T-Mobile is expected to come out with their own version of the phone, which WILL support T-Mobile's 1700MHz band. So don't buy this model if you want to use it on T-Mobile's network - wait for T_mobile's version.
651654
The phone supports 3G frequencies 850 / 900 / 1900 / 2100. T-mobile used 1700 AND 2100 (AWS) for HSPA, but I understand they are now providing HSPA also over 1900.
1820712
This unit comes with different models with slight variations in LTE frequencies. If you are with T mobile the earlier spectrum they used are the 1700/2100 mhz and of late they are adopting 1900mhz. Make sure all these three frequencies are included so you will be able to enjoy LTE speed of T mobile in your area. Again it presupposes that your area has LTE supported cell towers from Tmobile.
164118
I'm unsure I bought it to work on T-Mobiles HSDPA+ (4G) 42.2 Mbit/s network as I wasn't sure if their new 4G LTE was up and running in my area. Also it may depend on the carrier your using as ATT and T-Mobile may operate on different radio frequencies. If I remember correctly ATT had a version for them that was 4G LTE, the LT30at, their previous was the LT28at I think. I don't think any other US carrier had an official 4G LTE xperia. Though T-Mobile is getting the new Z soon. No Sprint or Verizon capable Xperia in years that I know of. Also there may be other versions that would work. You may want to double check on websites like phonearena, or one of the Xperia forums. I'm unsure I bought it to work on T-Mobiles HSDPA+ (4G) 42.2 Mbit/s network as I wasn't sure if their new 4G LTE was up and running in my area. Also it may depend on the carrier your using as ATT and T-Mobile may operate on different radio frequencies. If I remember correctly ATT had a version for them that was 4G LTE, the LT30at, their previous was the LT28at I think. I don't think any other US carrier had an official 4G LTE xperia. Though T-Mobile is getting the new Z soon. No Sprint or Verizon capable Xperia in years that I know of. Also there may be other versions that would work. You... » Read More I'm unsure I bought it to work on T-Mobiles HSDPA+ (4G) 42.2 Mbit/s network as I wasn't sure if their new 4G LTE was up and running in my area. Also it may depend on the carrier your using as ATT and T-Mobile may operate on different radio frequencies. If I remember correctly ATT had a version for them that was 4G LTE, the LT30at, their previous was the LT28at I think. I don't think any other US carrier had an official 4G LTE xperia. Though T-Mobile is getting the new Z soon. No Sprint or Verizon capable Xperia in years that I know of. Also there may be other versions that would work. You may want to double check on websites like phonearena, or one of the Xperia forums. « Show Less
631717
Same phone, different model. There were different releases for the US and international market that could receive different LTE bands. See the wikipedia article for more.
317634
LTE is locked to Verizon's band and cannot work under other carriers' LTE bands. But it can work well under T-Mobile 3g network, including MMS if you complete all the APN settings as described on T-Mobile website. The only problem is that, although it can receive SMS, due to some unknown reason, it cannot send SMS under T-Mobile 3g network. However, it can send SMS under T-Mobile 2g network with no problem. Therefore, you have to manually switch it to 2g whenever you want to send SMS.
305615
T-Mobile uses LTE bands 1700/2100 The C6603 is the LTE version supporting LTE bands 800/850/900/1800/2100/2600. However, the C6603 only supports HSDPA bands 850/900/2100 The C6602 supports HSDPA bands 850/900/1700/1900/2100 so it work work fully on T-Mobile, but it is lacking LTE. The C6606 (T-Mobile variant) fully supports LTE and HSPA+. One thing to keep in mind though is that on the C6606 is going to be harder to flash custom ROMs to (if that's your thing) due to it's bootloader.
334210
Actually, there's news out now that T-Mo is reappropriating their 1900 Mhz band to 3g/HSPA+. They just flipped the switch in San Francisco, I believe. So this might be changing. I really want this version for the Tegra3 and lack of branding on the back.
1190957
4G bands LTE band 3(1800), 7(2600), 8(900), 20(800) - EMEA LTE band 1(2100), 3(1800), 7(2600), 8(900), 28(700) - Asia LTE band 4(1700/2100), 17(700) - T-Mobile LTE band 2(1900), 4(1700/2100), 5(850), 7(2600), 17(700) - AT&T;LTE band 40(2300) - India
1568623
I just pulled this from the Tmobile website Band (frequency): 850 MHz;900 MHz;1800 MHz;1900 MHz;UMTS: Band I (2100);UMTS: Band IV (AWS);Band II (1900) I'm not sure if this is the same as it is on here, but Tmobile isn't listing the 1700 band.
1059389
Since the tablet doesn't support 1700/2100 (AWS) frequency, it will only correctly work with T-Mobile if you're in a 1900MHz refarmed area. Check with T-Mobile to confirm availability of this band. If it is, you'll get 3G/4G speeds, which are usually much slower than the normal AWS bands T-Mobile uses... but still fast enough for most internet and multimedia tasks. If not, you'll have Edge/2G, and that's really not usable.
1190962
4G bands LTE band 3(1800), 7(2600), 8(900), 20(800) - EMEA LTE band 1(2100), 3(1800), 7(2600), 8(900), 28(700) - Asia LTE band 4(1700/2100), 17(700) - T-Mobile LTE band 2(1900), 4(1700/2100), 5(850), 7(2600), 17(700) - AT&T LTE band 40(2300) - India
1738631
I don't know. It was too long ago and wouldn't work in my area because T Mobile only has 2G towers so I get very poor reception with all the phones.
1937188
Jerry K's question wasn't answered very clearly because there are two "flavors" of 4G, one of which is a slower sort-of 4G that is non-LTE. I've researched this a little and the answer for 4G-LTE is apparently "no". AT&T 4G-LTE is being deployed on two different bands. In the system used in urban areas they use "band 4" which uses 1700 & 2100 mHz simultaneously. In more rural areas they plan to install a "band 17" 700-mHz system which has better "reach". Unfortunately the Z-Boost will NOT amplify either band. It will, however, boost the "non-LTE" sort-of-4G interm systems that AT&T has widely deployed.
683592
In the US, T-Mobile would be the better choice for 4G LTE support. Since this phone does not support the 700 LTE band used by AT&T, you will not get LTE support on AT&T in most areas. It does support both LTE bands used by T-Mobile nationwide.