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Samsung Samsung Galaxy Watch4 (SM-R865U)

Stock Firmware • One UI • Android Support

Build / PDA Region (CSC) Rating Android Date Download Link
R865USQS2JZE1 XAA ★★★★☆ 9/10
v16
 2026-06-23
R865USQU1GWB2 XAA ★★★★☆ 9.3/10
v11
 2023-02-27
R865USQU2JZB6 XAA ★★★★☆ 9.3/10
v
 N/A

Step-by-Step Flashing Instruction

To restore or update your SM-R865U, use the latest Odin flash tool. This process will fix system bugs and bootloops.

  1. Preparation: Download the firmware archive and extract the .tar.md5 files.
  2. Odin: Open Odin3 v3.14.4 (or newer) on your computer.
  3. Download Mode: Power off your Samsung Galaxy Watch4. Hold Vol Up + Vol Down and plug it into the PC via USB.
  4. Load Files: Select files for each slot: BL, AP, CP, and CSC.
  5. Flash: Click Start. Wait for the green "PASS!" box to appear.
Important: Use HOME_CSC to keep your files and settings. Use CSC for a complete factory reset.

Popular Builds

R865USQU1GWB2
★★★★☆ 9.3/10

XAA • Android 11 • 2023-02-27 • 3621 downloads

R865USQS2JZE1
★★★★☆ 9/10

XAA • Android 16 • 2026-06-23 • 222 downloads