Because the watch is acting as a wireless access point, you must connect your computer directly to it. Open the Wi-Fi network list on your Windows PC.
| Problem | Solution | |----------------------------------|-------------------------------------------------| | NetOdin doesn’t detect watch | Reinstall Samsung USB drivers, try another USB port, restart NetOdin. | | “Auth fail” error | Firmware doesn’t match device bootloader version. Download newer/older firmware. | | Watch stuck after flash | Boot into recovery (Power + Home button) → Wipe cache/data. | | Firmware download link broken | Use Frija or SamFirm instead of manual downloads. |
Complete Guide to Samsung Gear S2 (SM-R720) Firmware Downloads
The SM-R720 is the standard Bluetooth/Wi-Fi variant of the Gear S2 lineup. Unlike its cellular counterparts (like the SM-R730), this specific model relies strictly on Wi-Fi and Bluetooth for connectivity. Samsung Gear S2 Sm-r720 Firmware Download
What is your Gear S2 showing right now?
is the ultimate way to revive a bricked device, fix boot loops, remove custom software, or upgrade your operating system manually. The Samsung Gear S2 (Sport/Bluetooth edition, model SM-R720)
Do not touch the watch, disconnect the Wi-Fi, or close your PC during this process. The transfer bar will fill up on both NetOdin and the watch screen. Because the watch is acting as a wireless
| Feature | Specification | |-----------------------|----------------------------------------| | Model | SM-R720 (Gear S2) | | Platform | Exynos 3250 Dual-core | | OS | Tizen (based on Linux) | | Supported regions | Global (multi-CSC) | | Key firmware files | AP, BL, CP, CSC (similar to Android) |
Press and hold the button until the "Rebooting..." screen appears.
Once in Wireless Download mode, the watch will act as a Wi-Fi hotspot or look for a WPS connection. Switch the watch mode to by double-clicking the Power button if prompted. | | “Auth fail” error | Firmware doesn’t
Note: Your PC will lose internet access during this time; this is normal. Step 4: Configure NetOdin and Flash
Offers a categorized list of stock firmware for various Samsung watch models. How to Install (Flashing Guide) Manual installation is usually done via