Net10 discounts a selection of its new and refurbished prepaid phones as part of its Prepaid Wireless Black Friday Sale, with deals starting from $29.99. Plus, all orders bag free shipping. A couple of best bets: Note: Although no specific warranty is stated for refurbished phones, Net10 will repair or replace a phone that contains a manufacturer's defect for up to one year. Also, availability for all deals may vary by ZIP code