If you are an , you can still typically upgrade or add lines at Best Buy. However, if you have already switched to the T-Mobile Network Experience (TNX) , you may need to handle your upgrade through T-Mobile directly or check with a Best Buy representative for the latest system compatibility.

: Refurbished models for these series are frequently discounted by $20–$50 or more, making them excellent choices for budget-conscious Sprint users. Why Shop at Best Buy?

: You can walk through the activation details for your specific Sprint or T-Mobile plan with an in-store expert.