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Thread: T-mobile roam at&t

  1. #1
    Default T-mobile roam at&t
    So I have an iphone 3G 3.1.2, blacksnow jailbreak and ultrasnow unlocked.

    I have service with t-mobile and found out t-mobile nationwide plans have free roaming but when I select at&t service from carriers list the phone shows up as "no service"

    So I just want to know how I can get the no service gone and get it to go onto at&t network.

    note: I do have t-mobile service no problems but I just wanted to test the at&t free roaming thing too.

  2. #2
    iPhone? More like MyPhone
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    Quote Originally Posted by drago10029 View Post
    So I have an iphone 3G 3.1.2, blacksnow jailbreak and ultrasnow unlocked.

    I have service with t-mobile and found out t-mobile nationwide plans have free roaming but when I select at&t service from carriers list the phone shows up as "no service"

    So I just want to know how I can get the no service gone and get it to go onto at&t network.

    note: I do have t-mobile service no problems but I just wanted to test the at&t free roaming thing too.
    i be live because you still t mobile Sim card in the phone.you cannot have t mobile service and try to use at&t data,it won't work.

  3. #3
    My iPhone is a Part of Me
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    In most places AT&T and T-Mobile don't allow in-market roaming if they have a large amount of native coverage in said area. That's the case in most metros now.

    I've been able to roam on AT&T on highways/county roads and some rural towns (where AT&T bought up the local carrier), but I lose it when I hit the outskirts of a decently sized city.

    YMMV, but don't expect to get on AT&T (much less any AT&T 3G-capable areas) without using an AT&T SIM.
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  4. The Following User Says Thank You to GenesisDH For This Useful Post:

    drago10029 (2010-09-06)

  5. #4
    Yes, even if you are in an area where T-Mobile drops coverage, but AT&T is readily available, this does not mean you are entitled to connecting. As stated, when you are out of a populated area and T-Mobile coverage gets low, it will hopefully hop onto AT&T, it just depends mainly on the area and if T-Mobile has a partnership to roam there. Even in the town I live in which has T-Mobile coverage everywhere, I sometimes see AT&T pop up with 1 bar, then it will drop and go back to full bars with T-Mobile.

  6. #5
    this is really good info thanks!

    btw, how do you find out about this anyway?

  7. #6
    Will T-mobile 3G service able to support the Unlocked Apple Iphone including Edge in the future or next year?

  8. #7
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    Quote Originally Posted by mechanicgjr8156 View Post
    Will T-mobile 3G service able to support the Unlocked Apple Iphone including Edge in the future or next year?
    All currently available iPhones will never support T-Mobile 3G. Its physically impossible due to the radio frequency not available inside the phone itself. Has nothing to do with T-Mobile not allowing it.

  9. The Following User Says Thank You to codester3388 For This Useful Post:

    mechanicgjr8156 (2010-09-11)

  10. #8
    i experienced this today while near the grand canyon in arizona, no tmobile service in the area and my iphone hopped onto the AT&T network there with 2 bars and i enabled 3G and that worked too :P

    but as soon as i got back into a city area, it went straight back to T-Mobile Edge with 4 bars

  11. #9
    Wait. You can use 3G while roaming??? Did i just get trolled?

  12. #10
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    There used to be reports of getting 3G while roaming, but most reports died shortly before the 3G iPhone was announced.
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  13. #11
    Quote Originally Posted by corkey20000 View Post
    Wait. You can use 3G while roaming??? Did i just get trolled?
    nope, when i roamed on ATT, i got 3G
    it was short lived tho, tmobile service took over once i got out the the canyon
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