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Sprint is restoring the ability for customers to upgrade phones more quickly.
Sprint Corp.’s ‘‘Easy Pay’’ requires customers to pay the full price of the old phone before getting a new one with installment payments. The customer could then sell the old phone for cash. Programs offered by AT&T, Verizon and T-Mobile take back the phone and waive remaining payments.
Easy Pay replaces Sprint’s ‘‘One Up,’’ which was more like rival upgrade programs. That was discontinued last week when Sprint introduced a ‘‘Framily’’ plan, which lets friends and relatives pool accounts for savings, while keeping individual billing and data allotments.
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