: A store associate will evaluate the phone's condition; if it qualifies, the value is applied as an instant credit toward a new phone or promotional deal. Existing Customer Upgrade Deals

Existing customers have specific pathways to get value for their old phones:

(formerly MetroPCS) does not buy phones for cash , but they do offer a Trade-In Program where you can receive an instant credit toward the purchase of a new device and service. How the Trade-In Process Works

Trade in Your Phone: Check What It's Worth | Metro by T-Mobile