Will Factory Unlocked iPhone from Czech Republic Work in US?

[dysert]

I am headed to Prague for Christmas and saw on Apple's web site they sell factory unlocked iPhones. I am a T-Mobile customer in the US and was wondering if the the iPhone purchased there will work with the carrier frequencies here?

 

[Applejuiced]

Yes, with Tmobile you wont be able to connect to 3G though. Just 2G and wifi for data.
Everything else will work besides 3G and visual voicemail.

 

[Nermal]

You may also have difficulties with MMS and tethering, although I expect that a carrier file for MMS would be available from somewhere.

 

[Applejuiced]

You may also have difficulties with MMS and tethering, although I expect that a carrier file for MMS would be available from somewhere.

Theres a hack thru cydia for tmobile MMS.
Im not 100% but I think theres also one for tethering.

 

[Nermal]

That requires a JB though, which the OP may not wish to do.

 

[Applejuiced]

Correct, I didnt think of that.

 

[ckd]

MMS works fine on my Italian factory-unlocked non-jailbroken 3GS using T-Mobile. Tethering does not work now that Apple requires signed mobileconfig files to enable it, alas. (If I'm really desperate, I can always get out my old unlocked Sony Ericsson and move the SIM.)

Here's what I use. I have the "T-Mobile Total Internet" add-on to my voice and message plan (cellular data + hotspot, though my rate is grandfathered in AFAIK as they split it up differently now).

APN: internet2.voicestream.com
User/pass : blank

MMS:
APN: wap.voicestream.com
User/pass : blank
MMSC: 216.155.174.84/servlets/mms
MMS Proxy: 216.155.165.50:8080
MMS Max Message Size: 1048576

 

[ThatsMeRight]

Yes, with Tmobile you wont be able to connect to 3G though. Just 2G and wifi for data.
Everything else will work besides 3G and visual voicemail.

I don't get it, why does the iPhone not work with T-Mobile? Over here in NL iPhones do work with T-Mobile.

 

[ste1164]

I don't get it, why does the iPhone not work with T-Mobile? Over here in NL iPhones do work with T-Mobile.

I think T-Mobiles 3G band is different from AT&T's and the iPhone doesnt support it.