Flashing firmware is not as simple as copying a file. You will need specific hardware and software.
Click on the designated slots in NetOdin and load the respective files from your extracted firmware folder: Click and select the file starting with BL_ . Click AP and select the file starting with AP_ . Click CSC and select the file starting with CSC_ .
Leave the default options untouched (ensure "Re-Partition" is ). Click the Start button.
Look for the latest combination of Tizen OS versions available for the SM-R720 (such as versions starting with R720XXU2 ). Ensure the region code matches your watch's original region (e.g., XAR for the United States, OXA for Europe) to preserve correct language and regional feature support. Step-by-Step Installation Guide Using NetOdin Samsung Gear S2 Sm-r720 Firmware Download
Once the firmware is successfully installed, your watch is in a "factory virgin" state.
As soon as you see "Rebooting...", release the Power button and immediately press it rapidly 3 to 4 times. A hidden select screen will appear.
Look for stock firmware packages specifically labeled for the SM-R720. A standard firmware package usually contains three core files: (Bootloader) AP (Application/System) Flashing firmware is not as simple as copying a file
Check . Members archive older builds. Again, verify the file hash before flashing.
If you encounter issues during the firmware update process, here are some troubleshooting tips:
in 2026 is a specialized process, as official support and over-the-air (OTA) updates from Samsung have largely ceased. Firmware Overview Click AP and select the file starting with AP_
Once completed, NetOdin will display a green message, and your Gear S2 will automatically reboot into its newly installed factory firmware. Troubleshooting Common Issues
Locate the network broadcasted by your watch ( SM-R720_XXXX ) and connect to it. No password is required.
On the download screen, double-click the Power button to switch the wireless mode from "WPS" to .
Odin should detect the watch, and you will see a blue/yellow box under . 3. Load the Firmware