1. drexvil's Avatar
    Also, would Tmobile unlock an AT&T phone for you? I know they do this for their Tmobile-branded phones after 3 months of service.

    Just wondering, before I go to Craigslist...
    08-13-09 03:31 PM
  2. fatboy97's Avatar
    No, an unlocked AT&T 8900 will not be able to use UMA... it must be a T-Mobile branded 8900 to use UMA, which could be unlocked.

    Normally, one provider will not unlock another provider's cell phone... but it doesn't hurt to ask.
    08-13-09 03:37 PM
  3. drexvil's Avatar
    Thanks, that was helpful.
    08-13-09 05:59 PM
  4. davidnyc's Avatar
    No, an unlocked AT&T 8900 will not be able to use UMA... it must be a T-Mobile branded 8900 to use UMA, which could be unlocked.
    This isn't true. If the original poster is technically adept, the correct settings can be configured in the Engineering Screen options.

    (the phone still needs to be unlocked though... but that’s easy enough by buying an unlock code on eBay)

    You can use these UMA configuration instructions to get UMA working.

    Important: ignore steps 3-6 regarding getting the Engineering Screen code from Blackberry.com... that username/password doesn't work. Use this site to get the engineering code.
    Last edited by davidnyc; 08-13-09 at 07:50 PM.
    08-13-09 07:44 PM
  5. aristile's Avatar
    This isn't true. If the original poster is technically adept, the correct settings can be configured in the Engineering Screen options.

    (the phone still needs to be unlocked though... but that’s easy enough by buying an unlock code on eBay)

    To access the Engineering Screen, follow these instructions.

    You can then use these UMA configuration instructions to get the rest setup. Ignore the part about getting the Engineering Screen code from Blackberry.com... that username/password doesn't work. Use the site I linked above.
    Its very likely that the user is not experienced enough to get into the eScreens just by judging on the question that was asked. If the OP was experienced enough to go into the eScreens then this post would not be made. Going into the eScreens can easily render a phone completely useless so please use a little judgment when throwing this advice out there. In the OP's situation, since they can purchase any phone, it is much better for them to just purchase a T-mobile branded 8900 and be ready to go instead of risking their device.
    08-13-09 07:51 PM
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