CX paid off their device and has current balance on the account. • May we ask your device's IMEI? (Kindly Go to Settings > General and tap About, and paste it here) • May we know if the account balance is fully settled? It looks like you've stepped away. Not a problem. Rest assured that once your T-Mobile account is $0.00 balance, you may follow these helpful steps using your iPhone 13 Pro Max: kindly go to Settings > General > About. If "No SIM restrictions" appears next to Carrier Lock, your iPhone is unlocked If ever needed, you may visit this helpful link to lessen your effort: https://www.t-mobile.com/contact-us Thank you for your time and effort here in T-Mobile Messaging. We hope everything goes well for you soon. And always take care