: A progress bar will indicate the status. Do not disconnect the device until the "Pass" or "Finished" message appears. Popular Alternatives and Compatible Boxes
: With the phone turned off, hold the boot key and connect it to the PC. The tool should detect the connection and begin the process. coolsand rda flash tool
How to read full CoolSand,RDA flash file with infinitybox CM2 : A progress bar will indicate the status
: Open the tool and select the appropriate .lod firmware file for your specific device model. coolsand rda flash tool