1 Reply Latest reply: Jul 3, 2012 9:45 AM by tmo_alicia_b Branched to a new discussion. RSS

    Unlock Sim PIN

      I lost my phone so now I'm switching to another phone I was given, but when I put in my SIM card it says I need to enter my PIN to unlock my SIM card. I don't even remember setting up a PIN number and can't find anywhere on the Tmobile sight to figure out my number. Any ideas please?

        • 1. Re: Unlock Sim PIN

          Hi whereseddie,

               You can try 1234, or 0000. Those are usually the default codes. If neither of those codes grant you access, a code was set up at some point in time, and T-Mobile does not have access to it. After several failed attempts, the SIM card will lock, and the phone will ask you for a PUK code. At that point, we will be able to provide you with this code, and you will be able to create a new SIM pin.