The Samsung Gear S2 (SM-R720) remains a popular choice for those who appreciate its classic circular design and rotating bezel. However, as the device ages, users often face software issues like boot loops or failed over-the-air (OTA) updates. Downloading a firmware repack—a package containing all necessary system files—is the primary method for unbricking, downgrading, or performing a clean system install on this Tizen-based wearable. Key Benefits of Firmware Repacks
Gear S2 SM-R720 Support & Manual | Samsung Business. Support / Wearables / Smartwatches / Gear S2 (Bluetooth) samsung.com
Load Files: Load the AP, BL, and CSC files from your repack into their respective slots in NetOdin and click Start. Method 2: Wired Flashing (Hardware Recovery)
A firmware "repack" is typically a curated collection of official Samsung stock firmware files combined into a single downloadable package. For the Gear S2 SM-R720
| Red Flags | Green Flags |
| :--- | :--- |
| File extension .exe or .apk (should be .tar, .tar.md5, or .zip) | File size ~500MB–900MB (Tizen full firmware) |
| Password-protected archive without a provided password | Includes a matching .md5 checksum |
| Asks for personal data to unlock download | Posted by a recognized user with history |
| Generic filename like firmware.exe | Clear naming: SM-R720_XAR_XXU_EPL7_repack.tar |
⚠️ Warning: Repacks are unofficial. Use at your own risk. Incorrect flashing can permanently damage your Gear S2.