Flashing firmware carries a risk of permanently bricking your device. Ensure you meet all the following requirements before proceeding:

Some advanced repacks include root binaries or pre-activated developer options to allow deeper customization of the Tizen OS. Prerequisites for Flashing the SM-R720

It is essential to distinguish a "repack" from a full "Custom ROM." A custom ROM is a completely new operating system built from the ground up (like AsteroidOS for other watches), which is a different and more complex process. A repack is a lighter modification.

To perform the firmware installation, you must download a specific set of tools and firmware archives:

The white/black magnetic dock is required. Computer: Running Windows 7, 10, or 11.

: While enthusiasts use third-party repacks, official firmware can sometimes be sourced through tools like Bifrost , which pulls files directly from Samsung's servers using the model number and region code (CSC).

Place the watch on the charging dock and connect it to the computer. Odin should detect it (ID:COM will turn blue/yellow). Load Files in Odin: Click BL and select the BL file. Click AP and select the AP file. Click CSC and select the CSC file.

Flashing any repackaged firmware carries risk. An improperly repacked bootloader can permanently hard-brick your Gear S2 (Qualcomm MSM8226 SoC has no hard recovery mode like Samsung phones).

If you run into issues during the configuration, let me know: Does NetOdin show a ?

disconnect your Wi-Fi, turn off your router, or shut down your PC during this time. The process typically takes 5 to 10 minutes.