How can I request a company unlock to use a SIM card from another operator?
Yes
Then follow the steps in the SIM Unlock Policy, have your eligibility verified with Customer Care, and request the SIM Unlock.
Are you a T-Mobile USA customer? Did you buy your device from T-Mobile? Do you meet all of the SIM Unlock Policy requirements as a T-Mobile customer?
https://www.t-mobile.com/responsibility/consumer-info/policies/sim-unlock-policy
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