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I bought an IPhone 13 pro max on OfferUp but is locked to AT&T and I have Tmobil my SIM card doesn’t work ! How can I fix that?
I bought an IPhone 13 pro max on OfferUp but is locked to AT&T and I have Tmobil my SIM card doesn’t work ! How can I fix that?
You need to Contact AT&T and request unlocking or use their SIM.
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