Carrier iPhone 5s locked to AT&T

Discussion in 'iPhone Tips, Help and Troubleshooting' started by Willabak, Jul 2, 2014.

  1. Willabak macrumors newbie

    Jul 2, 2014
    Hello, I want to know whether an iPhone 5s that is locked on AT&T can be used outside USA on another GSM network provider without unlocking it please.
    Many thanks.
  2. EDH667 macrumors 6502a


    Nov 25, 2009
    Northern California
    No it has to be unlocked first to use with another GSM SIM outside of the US.

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