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The company reserves the rights to revise the contents of the manual without prior notice. 2. Before Use 2.1. Install SIM Card and Memory Card 2.1.1. SIM CardUser manual for Tecno Spark. User ManualMobile PhoneModel：K7Hereby, TECNO MOBILE LIMITEDdeclares that this Mobile Phone isin compliance with. User manual instruction guides for TECNO MOBILE devices.