Firmware Downloads
Find and download official MIUI firmware for Samsung Galaxy Watch Active 2 (44mm) (sm-r820). All firmware files include MD5 hash verification and are available for direct download.
Samsung Galaxy Watch Active 2 (44mm)
| Version | Method | Size | Release Date | MD5 Hash | Download |
|---|---|---|---|---|---|
| R820XXU1DUA7/R820OXA1DUA7/ | Odin | 58.66 MB | 2021-01-01 |
N/A
|
Download |
| R820XXU1CTJ5/R820OXA1CTJ5/ | Odin | 99.1 MB | N/A |
N/A
|
Download |
| R820XXU1FVH4/R820OXA1FVH4/ | Odin | 16.72 MB | 2022-08-01 |
N/A
|
Download |
| R820XXU1CTI4/R820OXA1CTI4/ | Odin | 117.31 MB | N/A |
N/A
|
Download |
| R820XXU1DUE3/R820OXA1DUE3/ | Odin | 30.42 MB | 2021-05-01 |
N/A
|
Download |
| R820XXU1DUA3/R820OXA1DUA3/ | Odin | 59.23 MB | 2021-01-01 |
N/A
|
Download |
| R820XXU1FWK2/R820OXA1FWK2/ | Odin | 345.06 MB | 2023-11-01 |
N/A
|
Download |
| R820XXU1EVC2/R820OXA1EVC2/ | Odin | 54.61 MB | 2022-03-01 |
N/A
|
Download |
| R820XXU1EUK2/R820OXA1EUK2/ | Odin | 55.01 MB | 2021-11-01 |
N/A
|
Download |
| R820XXU1DUH1/R820OXA1DUH1/ | Odin | 46.05 MB | 2021-08-01 |
N/A
|
Download |
| R820XXU1DUD1/R820OXA1DUD1/ | Odin | 57.38 MB | 2021-04-01 |
N/A
|
Download |
How to Flash Firmware
Steps to Install Firmware:
- Download the ROM: Choose the appropriate firmware version above for your device region
- Backup Your Data: All data will be erased during flashing
- Unlock Bootloader: Required for some devices (check device-specific requirements)
- Download Tools: Download MIUI Flash Tool or use ADB/Fastboot
- Flash the ROM: Follow the tool's instructions to flash the downloaded firmware
- Verify: Restart and verify successful installation
⚠️ Warning: Flashing custom ROMs may void your warranty. Proceed at your own risk.
Frequently Asked Questions
Q: Is it safe to flash official firmware?
A: Yes, flashing official firmware is generally safe and won't void your warranty if done through official methods.
Q: What's the difference between Recovery and Fastboot ROMs?
A: Recovery ROMs are flashed from recovery mode, while Fastboot ROMs require bootloader unlock and ADB tools.
Q: Can I downgrade to an older firmware version?
A: Some devices allow downgrading, but it depends on the device and region. Check device-specific forums first.
Q: What if flashing fails?
A: If flashing fails, try using the official tool, ensure USB drivers are installed, and check device compatibility.