11 Replies Latest reply: Apr 22, 2017 5:22 AM by burbeci

    Permanently (?) unlocked phone: Invalid SIM card

    burbeci

      Hello,

       

      I bought a T-mobile phone from a reseller in the U.S. which is permanently unlocked (according to them).

      It worked there with my hungarian SIM card, and it worked here in hungary for 3 months until today.

      Today it says "invalid SIM card - Network locked SIM card inserted".

      I've tried to factory reset my phone and also tried the - "Device unlock" application, but it says "Service not responding. Please try again later.".

      What can I do in this situation?

       

      Thank you in advance