Before you start the update process, make sure that you have the following:
Disclaimer: Flashing custom or official firmware carries inherent risk. The author is not responsible for bricked devices. This guide is for educational purposes. Always ensure you own the device legitimately before modifying its software. Samsung Gear S2 Sm-r720 Firmware Download
Click the Start button. The process will take about 3–5 minutes. The progress bar on the watch will fill, and the PC log will display RESET or PASS . Before you start the update process, make sure