Carrier Do I need to put my old SIM card in my new 6s Plus?

Discussion in 'iPhone' started by Tubamajuba, Sep 25, 2015.

  1. Tubamajuba macrumors 68000

    Joined:
    Jun 8, 2011
    #1
    Or will the pre-installed SIM card work? My 6S Plus is still showing the temporary number under the "Phone" part of the Settings app.
     
  2. koulmj macrumors 6502

    koulmj

    Joined:
    Mar 18, 2013
    #2
    Most likely. I did for my verizon upgrade today.
     
  3. DoofenshmirtzEI macrumors 6502a

    DoofenshmirtzEI

    Joined:
    Mar 1, 2011
    #3
    Which carrier? My AT&T phone worked just fine with the pre-installed SIM. Activation went through fast.
     
  4. Tubamajuba thread starter macrumors 68000

    Joined:
    Jun 8, 2011
    #4
    Thanks for the reply.

    T-Mobile. And yeah, the last time I got a new iPhone I didn't have to use my old SIM.
     
  5. Tubamajuba thread starter macrumors 68000

    Joined:
    Jun 8, 2011
    #5
    Figured it out. For anyone that has the same issue-

    Login to your T-Mobile account and go to the "Phone" tab. There should be a section for managing SIM cards- click through and you can enter the ICCID listed under Settings->General->About. That will let T-Mobile know to associate your phone number with the new SIM card. For good measure, I entered my number in the "My Number" section of the phone settings- but I'm thinking that might not be necessary.
     

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