Have a sprint one max that's sim lock how can I unlock it. It is not blacklisted

[wess580]

Looking for help Have a sprint one max that's sim lock how can I unlock it. It is not blacklisted

 

[rgd1101]

To unlock sprint phone. contact sprint

 

[wess580]

To unlock sprint phone. contact sprint

 

[wess580]

Sprint actually gave me the unlock code a few months back but my one max does not give a prompt to enter my unlock code when I put my T-Mobile sim in