Samsung Galaxy S23 (Korea) is a samsung device (codename: sm-s911n). FirmwareMirror hosts 40 verified firmware builds, covering: KOO. Available as official firmware. Last updated: April 2026. All files MD5-verified. Free, no registration.
Find and download official Stock ROM for Samsung Galaxy S23 (Korea) (sm-s911n). 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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| S911NKSS7EZC2/S911NOKR7EZC2/S911NKSS7EZC2 | Odin | 412.31 MB | 2026-03-01 |
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| S911NKSS7EZB2/S911NOKR7EZB2/S911NKSS7EZB1 | Odin | 1.06 GB | 2026-02-01 |
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| S911NKSU7FZDT/S911NOKR7FZDT/S911NKSU7FZDP | Odin | 1.83 GB | 2026-04-01 |
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| S911NKSU6DYG9/S911NOKR6DYG9/S911NKSU6DYG9 | Odin | 2.96 GB | 2025-07-01 |
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| S911NKSU6DYD9/S911NOKR6DYD9/S911NKSU6DYD9 | Odin | 467.62 MB | 2025-04-01 |
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| S911NKSS6EYI9/S911NOKR6EYI9/S911NKSU6EYI7 | Odin | 360.83 MB | 2025-09-01 |
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| S911NKSS6DYG8/S911NOKR6DYG8/S911NKSS6DYG8 | Odin | 2.96 GB | 2025-07-01 |
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| S911NKSS6EYJ7/S911NOKR6EYJ7/S911NKSU6EYI7 | Odin | 477.58 MB | 2025-10-01 |
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| S911NKSU6EYI7/S911NOKR6EYI7/S911NKSU6EYI7 | Odin | 362.74 MB | 2025-09-01 |
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| S911NKSS6DYE5/S911NOKR6DYE5/S911NKSS6DYE5 | Odin | 416.21 MB | 2025-05-01 |
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| S911NKSS6EYK3/S911NOKR6EYK3/S911NKSU6EYI7 | Odin | 474.4 MB | 2025-11-01 |
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| S911NKSS6CYB3/S911NOKR6CYB3/S911NKSS6CYB3 | Odin | 4.47 GB | 2025-02-01 |
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| S911NKSU6DYG2/S911NOKR6DYG2/S911NKSU6DYG2 | Odin | 2.97 GB | 2025-07-01 |
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| S911NKSS6EZA1/S911NOKR6EZA1/S911NKSU6EYI7 | Odin | 417.69 MB | 2026-01-01 |
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| S911NKSS6EYL1/S911NOKR6EYL1/S911NKSU6EYI7 | Odin | 426.37 MB | 2025-12-01 |
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| S911NKSS6DYG1/S911NOKR6DYG1/S911NKSS6DYG1 | Odin | 410.48 MB | 2025-07-01 |
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| S911NKSS6DYE1/S911NOKR6DYE1/S911NKSS6DYE1 | Odin | 440.13 MB | 2025-05-01 |
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| S911NKSU5CXK4/S911NOKR5CXK4/S911NKSU5CXK4 | Odin | 435.57 MB | 2024-11-01 |
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| S911NKSU5CYB1/S911NOKR5CYB1/S911NKSU5CYB1 | Odin | 405.45 MB | 2025-02-01 |
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| S911NKSS5CXLS/S911NOKR5CXLS/S911NKSS5CXLS | Odin | 418.87 MB | 2024-12-01 |
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| S911NKSS5CXKA/S911NOKR5CXKA/S911NKSS5CXKA | Odin | 421.6 MB | 2024-11-01 |
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| S911NKSU4CXH7/S911NOKR4CXH7/S911NKSU4CXH7 | Odin | 581.5 MB | 2024-08-01 |
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| S911NKSS4CXG4/S911NOKR4CXG4/S911NKSS4CXG4 | Odin | 2.18 GB | 2024-07-01 |
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| S911NKSS4CXJ1/S911NOKR4CXJ1/S911NKSS4CXJ1 | Odin | 575.62 MB | 2024-10-01 |
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| S911NKSS4CXGJ/S911NOKR4CXGJ/S911NKSS4CXGJ | Odin | 2.15 GB | 2024-07-01 |
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| S911NKSS3CXE4/S911NOKR3CXE4/S911NKSS3CXE4 | Odin | 2.15 GB | 2024-05-01 |
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| S911NKSS3CXE1/S911NOKR3CXE1/S911NKSS3CXE1 | Odin | 2.15 GB | 2024-05-01 |
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| S911NKSU2ZWI8/S911NOKR2ZWI8/S911NKSU2BWI6 | Odin | 1.35 GB | 2023-09-01 |
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| S911NKSU2ZWH8/S911NOKR2ZWH8/S911NKSU2BWH4 | Odin | 2.19 GB | 2023-08-01 |
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| S911NKSU2BWK7/S911NOKR2BWK7/S911NKSU2BWJA | Odin | 3.26 GB | 2023-11-01 |
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| S911NKSS2CXD5/S911NOKR2CXD5/S911NKSU2CXC3 | Odin | 2.15 GB | 2024-04-01 |
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| S911NKSU2AWF5/S911NOKR2AWF5/S911NKSU2AWF1 | Odin | 1.12 GB | 2023-06-01 |
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| S911NKSU2ZWIB/S911NOKR2ZWIB/S911NKSU2BWI6 | Odin | 1.35 GB | 2023-09-01 |
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| S911NKSU2CXCG/S911NOKR2CXCG/S911NKSU2CXC3 | Odin | 2.15 GB | 2024-03-01 |
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| S911NKSS2BXAF/S911NOKR2BXAF/S911NKSS2BXAF | Odin | 3.25 GB | 2024-01-01 |
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| S911NKSU2ZWHO/S911NOKR2ZWHO/S911NKSU2BWHO | Odin | 1.83 GB | 2023-08-01 |
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| S911NKSU2AWGJ/S911NOKR2AWGJ/S911NKSU2AWGH | Odin | 3.02 GB | 2023-07-01 |
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| S911NKSU1AWC8/S911NOKR1AWC8/S911NKSU1AWC5 | Odin | 2.52 GB | 2023-03-01 |
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| S911NKSU1AWA6/S911NOKR1AWA6/S911NKSU1AWA6 | Odin | 2.64 GB | 2023-01-01 |
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| S911NKSU1AWBD/S911NOKR1AWBD/S911NKSU1AWB6 | Odin | 2.64 GB | 2023-02-01 |
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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, 20, 25, 26, 28, 38, 39, 40, 41, 46, 48, 66, 71 - USA | ||
| 5G bands | 1, 2, 3, 5, 7, 8, 12, 20, 25, 28, 38, 40, 41, 66, 75, 77, 78 SA/NSA/Sub6 - International | |
| 1, 7, 25, 28, 41, 66, 71, 78, 258, 260, 261 SA/NSA/Sub6/mmWave - USA | ||
| Speed | HSPA, LTE (CA), 5G |
| Launch | Announced | 2023, February 01 |
|---|---|---|
| Status | Available. Released 2023, February 17 |
| Body | Dimensions | 146.3 x 70.9 x 7.6 mm (5.76 x 2.79 x 0.30 in) |
|---|---|---|
| Weight | 168 g (5.93 oz) | |
| Build | Glass front (Gorilla Glass Victus 2), glass back (Gorilla Glass Victus 2), aluminum frame | |
| SIM | · Nano-SIM + eSIM · Nano-SIM + Nano-SIM + eSIM (max 2 at a time) | |
| IP68 dust tight and water resistant (immersible up to 1.5m for 30 min) Armor aluminum frame |
| Display | Type | Dynamic AMOLED 2X, 120Hz, HDR10+, 1200 nits (HBM), 1750 nits (peak) |
|---|---|---|
| Size | 6.1 inches, 90.1 cm2 (~86.8% screen-to-body ratio) | |
| Resolution | 1080 x 2340 pixels, 19.5:9 ratio (~425 ppi density) | |
| Protection | Corning Gorilla Glass Victus 2 |
| Platform | OS | Android 13, up to 4 major Android upgrades, One UI 8.5 |
|---|---|---|
| Chipset | Qualcomm SM8550-AC Snapdragon 8 Gen 2 (4 nm) | |
| CPU | Octa-core (1x3.36 GHz Cortex-X3 & 2x2.8 GHz Cortex-A715 & 2x2.8 GHz Cortex-A710 & 3x2.0 GHz Cortex-A510) | |
| GPU | Adreno 740 |
| Memory | Card slot | No |
|---|---|---|
| Internal | 128GB 8GB RAM, 256GB 8GB RAM, 512GB 8GB RAM | |
| UFS 3.1 - 128GB only 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, 70mm (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 | LED flash, auto-HDR, panorama | |
| Video | 8K@24/30fps, 4K@30/60fps, 1080p@30/60/120/240fps, 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, tri-band, Wi-Fi Direct |
|---|---|---|
| Bluetooth | 5.3, A2DP, LE | |
| Positioning | GPS, GLONASS, BDS, GALILEO | |
| NFC | Yes | |
| Radio | No | |
| USB | USB Type-C 3.2, OTG |
| Features | Sensors | Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer |
|---|---|---|
| Samsung DeX, Samsung Wireless DeX (desktop experience support) |
| Battery | Type | Li-Ion 3900 mAh |
|---|---|---|
| Charging | 25W wired, PD3.0, 50% in 30 min 15W wireless (Qi) 4.5W reverse wireless |
| Misc | Colors | Phantom Black, Cream, Green, Lavender, Graphite, Lime |
|---|---|---|
| Models | SM-S911B, SM-S911B/DS, SM-S911U, SM-S911U1, SM-S911W, SM-S911N, SM-S9110, SM-S911E, SM-S911E/DS | |
| SAR | 0.95 W/kg (head) 0.88 W/kg (body) | |
| SAR EU | 0.96 W/kg (head) 1.30 W/kg (body) | |
| Price | $ 257.00 / € 339.00 / £ 230.00 |
| Our Tests | Performance | AnTuTu: 1231075 (v9) GeekBench: 4950 (v5.1) GFXBench: 110fps (ES 3.1 onscreen) |
|---|---|---|
| Display | 1198 nits max brightness (measured) | |
| Camera | Photo / Video | |
| Loudspeaker | -27.0 LUFS (Good) | |
| Battery | Active use score 11:27h | |
| Battery (old) | Endurance rating 101h | |
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 S23 (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.
