![]() Note: Please make a back up of your device before install or update Flashing File.īoot Key:- Rivo R4 Coolsand RDA Boot Key is 0 Complete of Flash remove USB data cable and power on the device. ![]() Click on flash & then wait for the complete flash.Connect the Cellphone with USB data cable through Computer and insert Mobile battery again.Turn off the Mobile, remove the battery.Select Correct Mobile CPU type From Setup and Choose flash file.Open Miracle Box or any supported box setup / Dongle.Download Flash File From Link and extract it.Download and install Coolsand RDA USB Mobile drivers.II:- Download and install any Mobile supported box / Dongle setup like Miracle Box I:- Download and install Coolsand RDA USB Driver In Boot Select, select boot 8 (65xx and 67xx) 5. It is advisable to read flash before you write a flash or format the phone 3.
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