I've heard people say that an unlocked Lumia 900 should work on T-Mobile, including 3G/4G. Now that the specs for the Lumia 900 are available, can anyone confirm if that is true? The specs page is available at:
The bands that are listed are:
WCDMA Band V 850
LTE Band 17 (700)
WCDMA Band I 2100
WCDMA Band II 1900
WCDMA Band VIII 900
LTE Band 4 (1700/2100)
Is LTE Band 4 (1700/2100) the same as UMTS Band 4?
2G/EDGE = 1900 (GSM Band II) aka PCS
3G/HSPA+ = 1700+2100 (WCDMA Band IV) aka AWS
4G/LTE = n/a
Tmo is in the process or refarming their spectrum. Tmo's HSPA+ is already using the 1900 spectrum on a small # of towers in a few cities. HSPA/3G iPhones are reported working on Tmo's 1900 HSPA+ towers. So it might look like this in the near future:
2G/EDGE = 1900 (and HSPA+ use, then shutdown 2G for HSPA+ use)
3G/HSPA+ = 1700+2100 & 1900
4G/LTE = n/a (either 1700+2100 or 1900 or both. Or a whole new spectrum)
So from the looks of it, the Lumia 900 wont work on Tmo's HSPA+ (until Tmo starts the massive push for 1900 HSPA+). And Tmo doesn't have any LTE towers yet, but that AWS (1700+2100) LTE is interesting tho. Never seen or heard that being implemented. Tmo might use AWS for LTE once they have HSPA+ on 1900 nationwide (but they will still use some HSPA+ AWS for awhile), since they just got a big chunk from AT&T. But who knows what Tmo's gonna do with LTE at this point.
So to wrap it up, at this point, u can only use the Lumia on Tmo's 2G/EDGE network mainly nationwide unless your house/area is using 1900 HSPA+ also, but I wouldn't worry about that right now.
EDIT: I just realized, Verizon is buying up/partnershiping alot of AWS (1700+2100) spectrum, so that might be the reason this has LTE over AWS also. And yea, I know partnershiping isn't a word, lol.