Samsung Gear S2 Sm-r720 Firmware Download [upd] (8K)

Finding and installing firmware for the Samsung Gear S2 (SM-R720)

in 2026 is a specialized process, as official support and over-the-air (OTA) updates from Samsung have largely ceased. Firmware Overview

The SM-R720 is the non-3G, Bluetooth-only version of the Gear S2. The final official firmware versions generally fall under the builds, based on the Tizen 2.3.2 or early 4.0 platforms. Where to Download

Since the Samsung Galaxy Wearable app may no longer push updates to this legacy device, you will likely need to use third-party repositories.

Always verify the "Region" or "CSC" code (e.g., XAR for USA, BTU for UK) to ensure compatibility. SamFW / SamMobile:

These are the most reputable databases for official Samsung binaries. Search specifically for "SM-R720" to find the XDA Developers Forum:

The most reliable source for step-by-step guides and links to "combination firmware" used to recover bricked devices. How to Install (NetEase / Odin) Samsung Gear S2 Sm-r720 Firmware Download

Because the Gear S2 lacks a USB port, you cannot use a standard cable. You must use Odin (v3.10.7 or newer) over a wireless connection: Wireless Download Mode:

Enter this by holding the Power button until "Rebooting" appears, then tapping the Power button repeatedly until the menu shows. Select "Download (Wireless)." Switch the watch to "AP Mode" to create a Wi-Fi hotspot. PC Connection: Connect your PC to the watch's Wi-Fi network. Odin Transfer:

Open Odin on your PC, input the firmware files into the BL, AP, and CSC slots, and ensure the IP address matches the watch before hitting "Start." Key Risks & Tips Battery Life:

Ensure the watch is at 100% charge. If it dies during a wireless flash, it is almost impossible to recover without a physical "jig" (tearing the watch open). Functionality:

Newer firmware versions improved battery life and added "Value Pack" features like better fitness tracking, but they can also slow down the aging Exynos processor. step-by-step guide on how to set up the wireless Odin connection?

Samsung Gear S2 (SM-R720) is an older Tizen-based smartwatch, and while official OTA updates have largely ceased, you can still find and download the necessary firmware files for manual flashing or recovery. Latest Official Firmware Information Finding and installing firmware for the Samsung Gear

The most recent major update for the SM-R720 brought features from Tizen 3.0 (though the watch remained on Tizen 2.3.2.7). samsung.com Latest Version: R720XXU2FRC1 Release Date: March 26, 2018 Key Changes:

Refreshed icons, improved Samsung Health widgets, App Shortcuts, and more detailed weather forecasts. samsung.com Where to Download Firmware

Since Samsung does not provide direct download links for old firmware files on its main site, you must use reputable third-party databases: A highly reliable source for official Samsung firmware.

Often provides faster download speeds for regional stock ROMs. HardReset.info Database

Offers a categorized list of stock firmware for various Samsung watch models. How to Install (Flashing Guide) Manual installation is usually done via

(a wireless version of the Odin tool) because the Gear S2 lacks a physical USB port for data. Preparation : Ensure your watch has at least 50% battery. Install the Samsung Mobile USB Drivers on your PC. Enter Download Mode Press and hold the button until "Rebooting..." appears. Quickly press the button multiple times until a menu appears. Download (Wireless) and long-press the Power button to confirm. Connect via Wi-Fi Change the mode to by double-clicking the Power button. Why You Might Need to Download Firmware for

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.

Flashing firmware carries a risk of bricking your device. Always ensure the firmware version exactly matches your model number ( ) and regional code. (e.g., USA, UK, Korea) or a combination file for repair purposes? Gear S2 (SM-R720) - Notify Update

Why You Might Need to Download Firmware for the SM-R720

Before diving into download links, let’s diagnose why you are searching for firmware. The SM-R720, despite its durability, is prone to several software-related ailments:

• Boot Loop or Soft Brick: The watch displays the Samsung logo repeatedly without booting into the OS.
• Forgotten PIN or Pattern: You cannot access the watch due to a forgotten lock screen.
• Extreme Lag or Freezing: A corrupted cache or system file is causing performance issues.
• Failed Over-the-Air (OTA) Update: An interrupted update leaves the system unstable.
• Bluetooth Pairing Failures: The watch refuses to pair with a new phone after a reset.
• Selling or Donating the Watch: You need a clean, stock firmware to wipe personal data completely.

In all these cases, manually flashing the official Samsung Gear S2 SM-R720 firmware is the most definitive solution.

Q2: My watch says "Unauthorized access" after flashing. What do I do?

This happens if you flashed combination firmware or a file with a mismatched signature. Re-flash the official stock firmware from Frija. Ensure you uncheck "Auto Reboot" in Odin, flash, then manually reboot into recovery mode (Power button + Home) and do a factory reset.

Practical maintenance tips

• Regularly check Galaxy Wearable for OTA updates and apply them promptly for security and stability.
• Keep a habit of syncing health data to Samsung account or your phone so nothing is lost if a restore is required.
• Keep a dedicated micro‑USB cable (or the watch cradle) in good condition — flaky cables cause many flashing/charging issues.
• If you rely on third‑party apps, verify compatibility after major firmware upgrades.

Step 2: Prepare Odin on Your PC

1. Run Odin3 as Administrator (Right-click > Run as administrator).
2. Connect the Gear S2 charging cradle to your PC via USB.
3. Place the watch into the cradle.
4. In Odin, the "ID:COM" box should turn blue or yellow. If it stays gray, reinstall the Samsung USB driver or try a different USB port.

Phase 3: The Flash (Using Odin)

1. Open Odin (Run as Administrator).
2. You should see an "Added!!" message in the Odin log box, and a COM port (e.g., COM3) should turn yellow or blue.
   • If not: Your drivers aren't installed or the USB cable is bad.
3. Click the AP (or sometimes PDA) button in Odin.
4. Select the .tar.md5 firmware file you extracted earlier.
5. Crucial: Ensure that only "Auto Reboot" and "F. Reset Time" are checked. Do not check "Re-Partition" unless you have a specific PIT file (which is rare for general updates).
6. Click Start.
7. Wait. The process takes a few minutes. The watch will display a progress bar.
8. Once finished, Odin will say "PASS!" in a green box. The watch will reboot automatically.

Step 4: Load the Firmware Files

• Click the “BL” button and select the file starting with BL_.
• Click the “AP” button and select the AP_ file. (This will take 10–20 seconds to load because it is large).
• Click the “CSC” button and select the CSC_ file. Do not use the HOME_CSC version unless you want to keep user data (but for a clean flash, use the standard CSC to wipe everything).
• Leave “CP” blank unless your firmware includes a modem file.

Step 1: Enter Download Mode on the Gear S2

1. Turn off the watch completely.
2. Press and hold the Power button until the screen flickers.
3. As soon as "Rebooting..." appears, rapidly press the Power button 3 times.
4. You will see a blue screen with "Downloading..." and a warning about a custom OS.
5. Press the Power button once to confirm. The screen will say "Downloading... Do not turn off the target."