I bought iphone 7 plus unlocked device from best buy for full price $950, Its locked by Tmobile ,i am not able to use any other network Sims in my mobile. When i ask T-mobile  they said it’s not locked by T mobile.

    I was went to apple store and checked with my mobile IMEI no, it’s locked by T- Mobile. T-mobile they are not helping me to unlock my device.

    Please guide me how to unlock my device.


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