Not international??

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On the TMo site, if you do a compare of the G2 with other phones (e.g. the Vibrant), you will see that the G2 is NOT noted as an international phone. Is this possible, or just a screw-up on the TMo site?

It looks like the G2 will lack 2100 Mhz for 3G in Europe but it is quad band GSM, so it will fall back to edge.

The Vibrant on the other hand has 2100 Mhz and a quad band GSM, so it will get both 3G and edge reception.

Originally Posted by atlp99

It looks like the G2 will lack 2100 Mhz for 3G in Europe but it is quad band GSM, so it will fall back to edge.

The Vibrant on the other hand has 2100 Mhz and a quad band GSM, so it will get both 3G and edge reception.

that is very odd but i suppose they want you to only use this thing in the us or they dont want you to unlock it and be able to use 3g on at&t network. but i guess if thats a big issue you could always get the desire z it has less rom but i seriously doubt you will use all of the rom i mean you have 1.5gb which is more than double any other HTC phone 2 date.

I'm pretty sure the G2 will have 2100 Mhz band to use in Europe and Asia. It'll be a huge shocker if it doesn't considering that most of their phones have 2100 Mhz.

Originally Posted by Superfrag

I'm pretty sure the G2 will have 2100 Mhz band to use in Europe and Asia. It'll be a huge shocker if it doesn't considering that most of their phones have 2100 Mhz.

I don't know jack about the different bands used, so answer me this:
If the G2 has the 2100Mhz band then there is nothing stopping me buying and using it in the UK? I'd rather have the 4GB onboard ROM!

crazy

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It would indeed be crazy if the G2 couldn't pick up 3G outside of the US. I mean, my G1 is able to (after I unlocked it and used other carriers' sims, etc.). I'm just hoping it's really just a screw up on the Tmo website. However, all this talk about bands and such is beyond me, but makes me nervous. If anyone can officially clear things up, would be much appreciated. Cheers.

Originally Posted by setspeed

I don't know jack about the different bands used, so answer me this:
If the G2 has the 2100Mhz band then there is nothing stopping me buying and using it in the UK? I'd rather have the 4GB onboard ROM!

See, all T-Mobile phones till now, have the 2100Mhz band. Infact its universal in almost all smartphones..

The only thing that will prevent you from getting the G2, is that it will be locked to T-Mobile. If you're just picking it up without a contract, and you're not an existing T-Mobile customer, I doubt they will unlock it for you.

Other alternatives are getting the unlock codes from eBay, I've done it previously for many BlackBerries and they worked perfectly, but I can't vouch for Android phones.

Or wait for XDA community to come up with a way to unlock it, but I feel that might be a software unlock restricted to that particular baseband AFAIK.

Also, T-Mobile smartphones usually have 2 bands, 1700Mhz(for TMo's 3G) and 2100Mhz for Europe and Rest of World. The Vibrant somehow has 1900, maybe because Samsung didn't bother to remove it or dunno why. But I'm pretty sure the G2 will have 1700 and 2100Mhz bands, I will be shocked if it doesn't.

Alternatively, the Desire Z will not have the 1700Mhz band, but I think it will have 900/1900/2100 Mhz for other parts of the world. AFAIK, Japan and some carriers in Australia uses 1900. Europe as a whole uses 2100.

AT&T smartphones uses 850Mhz band, but in some cities they still have the old 1900Mhz band running.

http://en.wikipedia.org/wiki/UMTS_frequency_bands

That list should tell you where all the different bands are used. Note that Japanese carriers use a different type of 1700Mhz band in comparison to T-Mobile USA.

G2 2100 Mhz ?

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It struck me as odd that the G2 is listed as not having 2100 Mhz 3g. It may very well be a typo, Phonescoop lists the G2 as having both 1700Mhz and 2100 Mhz.

The 3G frequency that T-Mobile USA uses is not a pure 1700 Mhz, It actually uses one frequency for uplink and a different one for downlink to communicate with the towers. It uses 1700 Mhz for one and 2100 Mhz for the other, I forget which is uplink and downlink.
Most of the rest of the world ouside of the USA uses 2100 Mhz for both uplink and downlink for 3G.

Because of this all T-Mobile 3G smartphones have been able to use 3G on the 2100 Mhz frequency outside the US. It seems unlikely that HTC would disable 2100 Mhz on the G2 especially since it is basically the same as the Desire Z in europe.

Actually, if you looked at the Wiki, 2100Mhz band means 1900Mhz uplink and 2100Mhz downlink. The 1700Mhz spectrum that T-Mobile USA uses is 1700Mhz uplink and 2100Mhz downlink. Very similar... but still very different. :P

Take a look at the UMTS frequency band wiki page that I have posted in the above post of mine, you should be able to understand how it works.

From what I understand, UMTS services are differentiated by "Bands" rather than frequencies. Many other T-Mobile phones are Band IV AND Band I, whereas this phone is only Band IV.

Europe uses Bands I and VIII (which are the bands which the Desire Z supports).

Neither of these phones can get 3G on AT&T.

Only the G2 can get 3G in the US and Canada.

Most of the Americas primarily support Bands V and II (850/1900Mhz), including AT&T.
So there may be a "latin american" version which will work with AT&T.