From "Unlocked" to "Locked"?

Discussion in 'iPhone' started by McRumour, Oct 31, 2013.

  1. McRumour macrumors member

    Joined:
    Oct 6, 2013
    #1
    In order to resolve a "Call Forwarding" glitch on my 5S - Apple has suggested I try swapping the T-Mobile nano-sim card (now activated) which came with the phone - for a new T-Mobile card which I'd get at local T-Mobile store.
    My phone was purchased thru the Apple Online Store, contract-free. It arrived with the T-Mobile card pre-installed.

    Might this swap cause my "unlocked" phone to become a "locked" device?

    ie: What's the connection (if any) between a t-Mobile nano sim supplied with an iPhone purchased directly thru Apple - and a card obtained at a T-Mobile store?
     
  2. Belmont31R macrumors 6502

    Joined:
    Nov 23, 2012
    #2
    I am using a nano sim I got in a T-Mobile store and it works fine in my unlocked 5S.
     
  3. imaginex20 macrumors 65816

    imaginex20

    Joined:
    Jun 17, 2009
    #3
    Wow....

    Do you know what the purpose of an unlocked phone is? The ability to swap sims from different carriers. So, why do you think swapping sims with the same T-Mobile carrier suddenly lock your phone?

    Just think about it....
     
  4. McRumour thread starter macrumors member

    Joined:
    Oct 6, 2013
    #4
    I have no doubt it will work.
    My question is: Will my phone continue to be "unlocked" as it is now?
    I've read on this forum that the new phones purchased at T-Mobile (as opposed to those bought at Apple store) are locked for at least a 40 day period.
    I need to know whether swapping sims will cause my unlocked phone to become locked (at least for 40 days)

    ----------

    I'm seeking guidance. I make no pretense at being knowledgeable......
    If my query seems unbelievably stupid.....hey.....this is an area in which I'm totally uninformed - so please cut me some slack.....I come to this great forum for answers to my "dumb" questions ;)
     
  5. CEmajr macrumors 601

    Joined:
    Dec 18, 2012
    Location:
    Charlotte, NC
    #5
    Your phone can't magically go from unlocked to locked. It's always unlocked so swapping SIM cards doesn't change anything.
     
  6. McRumour thread starter macrumors member

    Joined:
    Oct 6, 2013
    #6
    ok.....thanks for that reassurance
    I have zero understanding of exactly what info is contained on a sim card and whether what it contains has any relation to what makes a phone locked or unlocked.
    I don't want to "jump from frying pan into fire" ( solve one problem whilst causing another )
    Again...thanks for the clarification.....
     
  7. Coleman2010 macrumors 68000

    Joined:
    Oct 9, 2010
    Location:
    NYC
    #7
    Nothing. It will not "lock your phone." Your iPhone is unlocked and you can use it with any GSM SIM card.
     
  8. vmaniqui macrumors 6502a

    vmaniqui

    Joined:
    Mar 8, 2013
    Location:
    California
    #8
    reason why T-Mobile iPhone 5S are unlocked is because you're paying full price. compare to ATT which is subsidized. so they have to wait 2 years for the life of the contract before ATT will unlock it (correct me if i am wrong pls.)
     

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