[T-Mobile] T-Mobile GSIII on AT&T?


Last Updated: 2013-02-22 19:58:05
  1. MonmouthDroid

    MonmouthDroid Well-Known Member

    How does it work? Can I root it and flash an AT&T ROM and radio and be in business? Will I get 3G and/or LTE?

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  2. rcsrich

    rcsrich Well-Known Member

    I don't know enough to comment on the flashing to AT&T, but I don't believe current t-Mo S3's have an LTE radio.
  3. MonmouthDroid

    MonmouthDroid Well-Known Member

    The Qualcomm chip it uses has LTE built in. Whether or not there is an antenna attached to the radio or not and what bands it would support is more the question.
  4. rcsrich

    rcsrich Well-Known Member

    Don't know why T-Mo would be releasing an LTE version of the S3 if all it required was a firmware/software update to turn on LTE, so there probably is an antenna or some other hardware reason...

    T-Mobile Galaxy S3 LTE launch set for March 27 / April 3, price unknown
  5. GTWalling

    GTWalling Well-Known Member

    Because the current S3 does not have the correct frequency that T-Mobile is launching their LTE on.
    rcsrich likes this.
  6. rcsrich

    rcsrich Well-Known Member

    Figured it was something like that...now I just wish I'd waited to get an LTE-capable S3! I wonder how much of a premium they'll be charging...
  7. GTWalling

    GTWalling Well-Known Member

    No, you can not get it to work flashing an ATT rom. It could brick the phone. You will need a Sim Unlock code from T-Mobile to use it on ATT. You will not get LTE as the T-Mobile phone does not have LTE capable on the phone.
  8. GTWalling

    GTWalling Well-Known Member

    I would not worry about it. It is going to be some time till T-Mobile's LTE is going to be available to all, and the speeds may not be any different. Also LTE will suck the life out of the battery.
  9. DHazyJMac

    DHazyJMac New Member

    Been thinking about switching to att myself... Anyone know what kind of data speeds the tmo model is capable of on att network?

    Sent from my SGH-T999 using Tapatalk 2
  10. ExtremeNerd

    ExtremeNerd Well-Known Member

    How to SIM Unlock.
    Note: This is legal if you bought your phone before January 25.

    All you have to do is go to Wal-Mart, buy a Straight Talk SIM card, and pop it in. It WILL work on AT&T 3G bands. You won't get the HSPA42 speeds you may be used to seeing, but I get a respectable 6MBPS.
    rcsrich likes this.
  11. DHazyJMac

    DHazyJMac New Member

    Thanks man... Yeah, I'm currently rocking edge on America's largest 4g network! For years they have ben slanging this BS that we couldn't get 3g in our area because of a nearby naval base... Though tmo in the actual town of the naval base has had 3g for years &now 4g... 2012 was supposed to bring change.... It did not.... Can't justify paying for 4g & never hitting 1mb... Is a joke... Straight talk here I come !

    Sent from my SGH-T999 using Tapatalk 2

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