Samsung Galaxy S25 (Korea) is a samsung device (codename: sm-s931n). FirmwareMirror hosts 18 verified firmware builds, covering: KOO, SKC. Available as official firmware. Last updated: May 2026. All files MD5-verified. Free, no registration.
Find and download official Stock ROM for Samsung Galaxy S25 (Korea) (sm-s931n). All firmware files include MD5 hash verification and are available for direct download.
| Version | Method | Size | Release Date | MD5 Hash | Download |
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| S931NKSS8BZB2/S931NOKR8BZB2/S931NKSS8BZB1 | Odin | 528.74 MB | 2026-02-01 |
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| S931NKSS8BZC1/S931NOKR8BZC1/S931NKSS8BZB1 | Odin | 286.3 MB | 2026-03-01 |
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| S931NKSS7BYK5/S931NOKR7BYK5/S931NKSS7BYK2 | Odin | 570.3 MB | 2025-11-01 |
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| S931NKSS7BYLR/S931NOKR7BYLR/S931NKSS7BYK2 | Odin | 517.61 MB | 2025-12-01 |
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| S931NKSS7BYKG/S931NOKR7BYKG/S931NKSS7BYK2 | Odin | 525.91 MB | 2025-11-01 |
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| S931NKSS6BYJ2/S931NOKR6BYJ2/S931NKSS6BYIF | Odin | 569.38 MB | 2025-10-01 |
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| S931NKSS5BYI9/S931NOKR5BYI9/S931NKSU5BYI3 | Odin | 597.65 MB | 2025-09-01 |
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| S931NKSS5AYG6/S931NOKR5AYG6/S931NKSS5AYG6 | Odin | 3.48 GB | 2025-07-01 |
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| S931NKSS5AYF6/S931NOKR5AYF6/S931NKSS5AYF6 | Odin | 528.87 MB | 2025-06-01 |
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| S931NKSU5BYI3/S931NOKR5BYI3/S931NKSU5BYI3 | Odin | 571.26 MB | 2025-09-01 |
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| S931NKSU5AYFT/S931NOKR5AYFT/S931NKSU5AYFT | Odin | 3.42 GB | 2025-06-01 |
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| S931NKSS4AYE5/S931NOKR4AYE5/S931NKSS4AYE5 | Odin | 541.08 MB | 2025-05-01 |
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| S931NKSS3AYDF/S931NOKR3AYDF/S931NKSS3AYDF | Odin | 545.7 MB | 2025-04-01 |
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| S931NKSU2AYD9/S931NOKR2AYD9/S931NKSU2AYD9 | Odin | 658.1 MB | 2025-04-01 |
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| S931NKSSACZE1/S931NOKRACZE1/S931NKSSACZE1 | Odin | 286.3 MB | 2026-05-01 |
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| S931NKSU1AYC3/S931NOKR1AYC3/S931NKSU1AYC3 | Odin | 885.73 MB | 2025-03-01 |
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| S931NKSU1AYB3/S931NOKR1AYB3/S931NKSU1AYB3 | Odin | 885.75 MB | 2025-02-01 |
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| S931NKSU1AYA2/S931NOKR1AYA2/S931NKSU1AYA2 | Odin | 895.06 MB | 2025-01-01 |
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| Network | Technology | GSM / CDMA / HSPA / EVDO / LTE / 5G |
|---|---|---|
| 2G bands | GSM 850 / 900 / 1800 / 1900 | |
| CDMA 800 / 1900 & TD-SCDMA | ||
| 3G bands | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 | |
| CDMA2000 1xEV-DO | ||
| 4G bands | 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 - International | |
| 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 48, 66, 71 - USA unlocked | ||
| 5G bands | 1, 2, 3, 5, 7, 8, 12, 20, 25, 26, 28, 38, 40, 41, 66, 75, 77, 78 SA/NSA/Sub6 - International | |
| 1, 2, 5, 7, 25, 28, 41, 66, 71, 77, 78, 257, 258, 260, 261 SA/NSA/Sub6/mmWave - USA unlocked | ||
| Speed | HSPA, LTE (CA), 5G |
| Launch | Announced | 2025, January 22 |
|---|---|---|
| Status | Available. Released 2025, February 03 |
| Body | Dimensions | 146.9 x 70.5 x 7.2 mm (5.78 x 2.78 x 0.28 in) |
|---|---|---|
| Weight | 162 g (5.71 oz) | |
| Build | Glass front (Gorilla Glass Victus 2), glass back (Gorilla Glass Victus 2), aluminum frame | |
| SIM | · Nano-SIM + Nano-SIM + eSIM + eSIM (max 2 at a time) - INT · Nano-SIM + eSIM + eSIM (max 2 at a time) - USA · Nano-SIM + Nano-SIM - CN | |
| IP68 dust tight and water resistant (immersible up to 1.5m for 30 min) Armor aluminum 2 frame |
| Display | Type | Dynamic LTPO AMOLED 2X, 120Hz, HDR10+, 2600 nits (peak) |
|---|---|---|
| Size | 6.2 inches, 94.4 cm2 (~91.1% screen-to-body ratio) | |
| Resolution | 1080 x 2340 pixels, 19.5:9 ratio (~416 ppi density) | |
| Protection | Corning Gorilla Glass Victus 2, Mohs level 5 |
| Platform | OS | Android 15, up to 7 major Android upgrades, One UI 8 |
|---|---|---|
| Chipset | Qualcomm SM8750-AC Snapdragon 8 Elite (3 nm) | |
| CPU | Octa-core (2x4.47 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M) | |
| GPU | Adreno 830 (1200 MHz) |
| Memory | Card slot | No |
|---|---|---|
| Internal | 128GB 12GB RAM, 256GB 12GB RAM, 512GB 12GB RAM | |
| UFS 4.0 |
| Main Camera | Triple | 50 MP, f/1.8, 24mm (wide), 1/1.56", 1.0µm, dual pixel PDAF, OIS 10 MP, f/2.4, 67mm (telephoto), 1/3.94", 1.0µm, PDAF, OIS, 3x optical zoom 12 MP, f/2.2, 13mm, 120˚ (ultrawide), 1/2.55" 1.4µm, Super Steady video |
|---|---|---|
| Features | Best Face, LED flash, auto-HDR, panorama | |
| Video | 8K@24/30fps, 4K@30/60fps, 1080p@30/60/120/240fps, 10-bit HDR, HDR10+, stereo sound rec., gyro-EIS |
| Selfie camera | Single | 12 MP, f/2.2, 26mm (wide), 1/3.2", 1.12µm, dual pixel PDAF |
|---|---|---|
| Features | HDR, HDR10+ | |
| Video | 4K@30/60fps, 1080p@30fps |
| Sound | Loudspeaker | Yes, with stereo speakers |
|---|---|---|
| 3.5mm jack | No | |
| High-bitrate audio support |
| Comms | WLAN | Wi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, Wi-Fi Direct |
|---|---|---|
| Bluetooth | 5.4, A2DP, LE | |
| Positioning | GPS, GLONASS, BDS, GALILEO, QZSS | |
| NFC | Yes | |
| Radio | No | |
| USB | USB Type-C 3.2, DisplayPort 1.2, OTG |
| Features | Sensors | Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer |
|---|---|---|
| Samsung DeX, Samsung Wireless DeX (desktop experience support) |
| Battery | Type | Li-Ion 4000 mAh |
|---|---|---|
| Charging | 25W wired, PD3.0, 50% in 30 min 15W wireless (Qi2 Ready) 4.5W reverse wireless |
| Misc | Colors | Icy Blue, Mint, Navy, Silver Shadow, Pink Gold, Coral Red, Blue Black |
|---|---|---|
| Models | SM-S931B, SM-S931B/DS, SM-S931U, SM-S931U1, SM-S931W, SM-S931N, SM-S9310, SM-S931E, SM-S931E/DS | |
| SAR | 1.13 W/kg (head) 0.92 W/kg (body) | |
| SAR EU | 1.29 W/kg (head) 1.36 W/kg (body) | |
| Price | $ 434.45 / € 590.00 / £ 472.97 / ₹ 74,999 |
| Our Tests | Performance | AnTuTu: 2193701 (v10) GeekBench: 10050 (v6) 3DMark: 6755 (Wild Life Extreme) |
|---|---|---|
| Display | 1395 nits max brightness (measured) | |
| Loudspeaker | -26.1 LUFS (Good) | |
| Battery | Active use score 13:09h | |
| EU LABEL | Energy | Class B |
|---|---|---|
| Battery | 37:16h endurance, 2000 cycles | |
| Free fall | Class A (270 falls) | |
| Repairability | Class C |
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.
A: Samsung Galaxy S25 (Korea) firmware is flashed using Odin. See the step-by-step guide above for the full procedure.
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.
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.
