If trading in by mail, always take a photo of your tracking number and the device's condition before shipping. Several customers have faced issues where tracking was "lost," leaving them on the hook for hundreds of dollars.
Customers on the Infinite Access plan can trade in their previous device for an annual upgrade. Review: Is It Worth It? does boost buy back old phones
If a device arrives locked (e.g., "Find My iPhone" is still on) or in worse condition than described, your credit may be significantly reduced or canceled. If trading in by mail, always take a
Visit a local Boost Mobile store where staff can run a diagnostic check and apply trade-in discounts immediately toward eligible new devices. Review: Is It Worth It
Boost will send you a trade-in kit. You must mail your old device back within 30 days of your new phone shipping.