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If you just upgraded to a new phone or just want to sell your Other Brands Mobile Broadband for extra cash, BuyBackWorld.com can help you sell your Airvana Sprint Airave Access Point Cell Phone Signal Booster, Franklin Wireless Sprint 3G 4G U600 USB Modem Stick and Franklin Wireless Sprint 4G U301 USB Modem. With our Other Brands Mobile Broadband trade-in program, we offer you Instant Quote Values for devices on all carriers such as AT&T, Verizon, T-Mobile, Sprint and more. If you use another carrier such as MetroPCS, Boost Mobile or US Cellular, always be sure to check the 'Other Carriers' button to properly select your device.