: You can often upgrade your hardware without being forced to switch from a "grandfathered" Sprint plan to a new T-Mobile plan.
Upgrading Your Sprint Phone at Best Buy: A Complete Guide Even though the Sprint and T-Mobile merger has fully integrated the two networks, "legacy" Sprint customers can still take advantage of specialized upgrade processes at national retailers like . As of April 2026, the old Sprint network has been shut down, but you can still manage your legacy account and upgrade to modern 5G devices that run on the T-Mobile network. Why Choose Best Buy for Your Sprint Upgrade?
Many long-time customers prefer Best Buy Mobile over carrier-branded stores for several reasons:
The process is straightforward and mirrors what you would experience at a carrier store. Already a Sprint customer I have a Samsung phone - Best Buy