iPhone 4th Generation with T-Mobile 3G Network

Discussion in 'Jailbreaks and iOS Hacks' started by dvdhsu, Apr 7, 2009.

  1. dvdhsu macrumors 6502a


    Mar 28, 2008
    Palo Alto, CA
    Because the chip in the 3G iPhone doesn't support the 3G T-Mobile provides, the current iPhone cannot be used on the T-Mobile 3G network.
    This is because the 3G networks have different frequencies. If you look at the tech specs for the 3G iPhone, you can see it doesn't support T-Mobile's 3G network.http://www.apple.com/iphone/specs.html
    As you can see from that, the iPhone only supports
    UMTS/HSDPA (850, 1900, 2100 MHz)
    GSM/EDGE (850, 900, 1800, 1900 MHz)
    However, T-Mobile's 3g Network uses 2100 and 1700.
    Thus, the iPhone 3G cannot get 3G signals from the T-Mobile 3G network.
    However, that is what we have already known.
    Now, the question is, will the third generation iPhone support T-Mobile's network?
    It seems to me and many others that Apple will be using this chip: http://www.electronista.com/articles/08/05/31/infineon.xmm.6180.3g.chip/
    The X-Gold 618 PMB 9800.
    However, the question is, will this chip support T-Mobile's 3G network?
    If anybody knows anything about this topic, it will be appreciated.
  2. Kardashian macrumors 68020


    Sep 4, 2005
    1. You won't know until its released
    2. Its a third generation iPhone which is being released next - not the fourth. This will be the third iPhone Apple design. Why are you calling it the 4th Generation?
  3. Nermal Moderator


    Staff Member

    Dec 7, 2002
    New Zealand
    We won't know for sure until June, but I believe that there will be two different models this time around, one similar to the existing one but also a new one with UMTS 900. They may also add 1700 support to the 900 MHz model.

    I believe that UMTS 900 is common in Europe, which would presumably entice Apple to add it. Meanwhile they'll keep 850 because AT&T uses it. In addition, I don't believe that manufacturers have had much luck with putting 850 and 900 in the same phone.

    Edit: I actually had an unnamed source who told me about the 900 MHz model. He has since told me that he made it up and has no idea what's coming :(
  4. dvdhsu thread starter macrumors 6502a


    Mar 28, 2008
    Palo Alto, CA
    Sorry, my bad, accidental typo.

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