Carrier AT&T IUP iPhone on T-Mobile?

Discussion in 'iPhone' started by welles13, Sep 10, 2016.

  1. welles13 macrumors member

    Jul 3, 2007
    I mean, this configuration should work, right? Taking an ATT phone on the Apple Upgrade Program that you bought online from Apple - because T-Mo for whatever reason demands you go into the store - and immediately inserting your own T-Mo SIM. It's unlocked, right?! I'm just slightly concerned with the 'connected to AT&T' label here...

  2. justinf77 macrumors 6502

    May 18, 2003
    That's what I plan on doing and I assume it will work fine. The phone comes 100% unlocked, I don't see there being a problem.
  3. Dirtydutch macrumors 6502a


    Sep 19, 2015
  4. James.K.Polk macrumors 6502a

    Aug 31, 2015
    Did this work? It's my understand you need to enter your ATT account info to proceed.

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