Use the Galaxy Wearable app or Samsung Support for official firmware updates whenever possible. Only use community firmware and manual flashing if you understand and accept the risks.
Connect your PC's Wi-Fi to the network name shown on the watch (e.g., Gear S2 (xxxx) Flash Files Load the firmware files into their respective slots: and wait for the "PASS" message.
Confirm your watch is exactly the SM-R720 (Sport/Bluetooth version). Do not use this firmware for the SM-R730 (3G/4G) or SM-R732 (Classic) models, as doing so will permanently brick your device.
This comprehensive guide covers everything you need to find, download, and safely install the correct firmware for your SM-R720. Understanding the Samsung Gear S2 (SM-R720)
Before you start, it's absolutely vital to confirm you have the correct watch model. Using the wrong firmware can permanently damage the device. Samsung Gear S2 Sm-r720 Firmware Download
Download and extract (v3.0 or later) onto your Windows PC.
You may encounter "Combination Files" labeled like COMBINATION_FTMA_R720XXU2AOJ2 .
Connect your Windows PC directly to the Wi-Fi network hosted by the watch.
A complete stock firmware package for the SM-R720 usually consists of three operational files wrapped in a zip archive: Use the Galaxy Wearable app or Samsung Support
The safest and most common way to download firmware for the SM-R720 is through the official Samsung Gear/Galaxy Wearable app Connect the Gear S2 to your mobile device via Bluetooth. Samsung Gear app on your phone. Navigate to About Gear Update Gear software Download and install
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.
Locate the network broadcasted by your watch ( SM-R720_XXXX ) and connect to it. No password is required.
Odin should detect the watch, and you will see a blue/yellow box under . 3. Load the Firmware Confirm your watch is exactly the SM-R720 (Sport/Bluetooth
Right-click the file on your PC and select Run as Administrator .
Downloading firmware for the Samsung Gear S2 SM-R720 is a manual process because the device is deprecated.
Reinstall USB drivers, change USB cable, or try a different USB port.