I want to unlock my carrier lock device?

The carrier US Sprint / T-Mobile has locked the phone. You will need to contact them to remove the lock.

Apple has nothing to do with this.

T-Mobile Customer Care | No barriers—get help from real ...T-Mobilehttps://www.t-mobile.com › customers › customer-care

You have all the information that you need. We will not respond to this message any further.

I have Apple device and obviously Apple have authority to decide network locked unlock!

No they don't. End of story.

Contact the carrier. That is your only option.

Only your carrier can unlock the SIM card on your phone. Apple cannot do this.

Contact your carrier.

If your phone says Carrier Lock.......Apple did not lock your phone. Your carrier locked your phone. Only your carrier can unlock the SIM card.

T-Mobile will normally only unlock phones for users who have a current or former account with T-Mobile. But you can try contacting them and asking. www.t-mobile.com.