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S4 network unlock

Discussion in 'Android Help' started by Android Question, Jan 3, 2014.

  1. Android Question

    Thread Starter


    I am using Samsung galaxy S4 GT-I9505. I recently traveled from one country to another. Now i am in home country and i am unable to use any network services. I have replaced the Sim card. I have tried Factory resetting, but it didn't work. Whenever i try to call someone it is showing the message like this, "Not registered on the network". I am unable to update or boot in recovery mode. i have seen some methods in various forums to unlock Network lock, but i don't know whether it is safe or not. Somebody please help me o this.

    thanking you


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