Detachment from the operator

I have such a problem. I bought a brand new phone (In a sealed box) me imei 355 054 414 014 017/ meid 355 054 414 014 01/ Serial Number:FFMGXVD8PLJM. From the person who brought this phone from the USA. After the acquisition, it turned out that he does not accept local sim cards. After checking, I realized that he was tied to the Cricket (USA) telecom operator. The phone is not stolen, it is clean without fraud. Please help me with the problem. Please check and write what can be done.