Firmware Downloads
Find and download official Stock ROM for Samsung Galaxy Watch4 40mm LTE (SM-R865F) (sm-r865f). All firmware files include MD5 hash verification and are available for direct download.
Samsung Galaxy Watch4 40mm LTE (SM-R865F)
| Version | Method | Size | Release Date | MD5 Hash | Download |
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| R865FXXU2JZC2/R865FOLB2JZC2/R865FXXU2JZC2 | Odin | 505.45 MB | 2026-03-01 |
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| R865FXXU1FVC8/R865FOLB1FVC8/R865FXXU1FVC8 | Odin | 95.89 MB | 2022-03-01 |
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| R865FXXU1EVA8/R865FOLB1EVA8/R865FXXU1EVA8 | Odin | 346.16 MB | 2022-01-01 |
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| R865FXXU1HXB7/R865FOLB1HXB7/R865FXXU1HXB7 | Odin | 1.81 GB | 2024-02-01 |
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| R865FXXU1JYL6/R865FOLB1JYL6/R865FXXU1JYL6 | Odin | 531.05 MB | 2025-12-01 |
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| R865FXXU1GVK6/R865FOLB1GVK6/R865FXXU1GVK6 | Odin | 387.92 MB | 2022-11-01 |
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| R865FXXU1BUI5/R865FOLB1BUI5/R865FXXU1BUI5 | Odin | 816.15 MB | 2021-09-01 |
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| R865FXXU1FVD4/R865FOLB1FVD4/R865FXXU1FVD4 | Odin | 882.28 MB | 2022-04-01 |
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| R865FXXU1GWA3/R865FOLB1GWA3/R865FXXU1GWA3 | Odin | 295.26 MB | 2023-01-01 |
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| R865FXXU1IYI1/R865FOLB1IYI1/R865FXXU1IYI1 | Odin | 1.71 GB | 2025-09-01 |
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| R865FXXU1IXK1/R865FOLB1IXK1/R865FXXU1IXK1 | Odin | 457.97 MB | 2024-11-01 |
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| R865FXXU1HWL1/R865FOLB1HWL1/R865FXXU1HWL1 | Odin | 231.27 MB | 2023-12-01 |
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| R865FXXU1HWI1/R865FOLB1HWI1/R865FXXU1HWI1 | Odin | 505.45 MB | 2023-09-01 |
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| R865FXXU1GWB1/R865FOLB1GWB1/R865FXXU1GWB1 | Odin | 294.81 MB | 2023-02-01 |
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| R865FXXU1GVH1/R865FOLB1GVH1/R865FXXU1GVH1 | Odin | 486.72 MB | 2022-08-01 |
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| R865FXXU1IYCD/R865FOLB1IYE2/R865FXXU1IYE2 | Odin | 135.73 MB | 2025-03-01 |
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| R865FXXU1GWDA/R865FOLB1GWDA/R865FXXU1GWDA | Odin | 1.71 GB | 2023-04-01 |
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| R865FXXU1DUJA/R865FOLB1DUJA/R865FXXU1DUJA | Odin | 699.58 MB | 2021-10-01 |
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More samsung Devices
Frequently Asked Questions
Q: Is it safe to flash official samsung firmware?
A: Yes — official firmware from the manufacturer is generally safe when you match your device's exact model number and region. Flashing the wrong region or modified firmware can cause issues.
Q: What tool do I need to flash Samsung Galaxy Watch4 40mm LTE (SM-R865F) firmware?
A: Samsung Galaxy Watch4 40mm LTE (SM-R865F) firmware is flashed using Odin. See the step-by-step guide above for the full procedure.
Q: Can I downgrade to an older firmware version?
A: Some devices allow downgrading, others have anti-rollback protection that blocks it. Check the version-specific notes on each ROM page, or your model's community forum, before attempting a downgrade.
Q: What if flashing fails?
A: First, verify the firmware matches your exact model code (e.g. SM-S938B for Samsung, or the CPH-number for OPPO). Reinstall the manufacturer's USB drivers, use a rear USB 2.0 port directly on your PC, and retry. The troubleshooting box above the FAQ covers the most common failure modes.