Walton Primo C3 Firmware, Flash Tool, Driver & Upgrade Instruction Walton Primo C3 Firmware, Flash Tool, Driver & Upgrade Instruction 10 November Bijendra Narsinghani Share To: Primo C3 Driver, Flashtool & Firmware download Link: Download Here C3_4.4.2_1 Primo C3 Firmware upgrade instruction: Open flashtool Select scatter file Click Firmware upgrade Press and hold volume down key till the progress start Connect USB cable Connect Battery Wait till download complete.
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