Samsung Galaxy S24 (Korea) is a samsung device (codename: sm-s921n). FirmwareMirror hosts 34 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 S24 (Korea) (sm-s921n). 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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| S921NKSS9CYI9/S921NOKR9CYI9/S921NKSU9CYI3 | Odin | 284.49 MB | 2025-09-01 |
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| S921NKSS9BYG8/S921NOKR9BYG8/S921NKSS9BYG8 | Odin | 3.15 GB | 2025-07-01 |
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| S921NKSU9CYI5/S921NOKR9CYI5/S921NKSU9CYI3 | Odin | 356.21 MB | 2025-09-01 |
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| S921NKSS8BYF1/S921NOKR8BYF1/S921NKSS8BYF1 | Odin | 298.93 MB | 2025-06-01 |
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| S921NKSS7BYE9/S921NOKR7BYE9/S921NKSS7BYE9 | Odin | 312.22 MB | 2025-05-01 |
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| S921NKSS6BYDF/S921NOKR6BYDF/S921NKSS6BYDF | Odin | 317.54 MB | 2025-04-01 |
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| S921NKSU5BYD9/S921NOKR5BYD9/S921NKSU5BYD9 | Odin | 346.9 MB | 2025-04-01 |
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| S921NKSU5AXK4/S921NOKR5AXK4/S921NKSU5AXK4 | Odin | 303.44 MB | 2024-11-01 |
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| S921NKSS5AYB1/S921NOKR5AYB1/S921NKSS5AYB1 | Odin | 4.66 GB | 2025-02-01 |
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| S921NKSS5AYA1/S921NOKR5AYA1/S921NKSS5AYA1 | Odin | 265.37 MB | 2025-01-01 |
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| S921NKSS5AXL1/S921NOKR5AXL1/S921NKSS5AXL1 | Odin | 285.32 MB | 2024-12-01 |
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| S921NKSU5BYCG/S921NOKR5BYCG/S921NKSU5BYCG | Odin | 346.61 MB | 2025-03-01 |
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| S921NKSS5AXKA/S921NOKR5AXKA/S921NKSU5AXKC | Odin | 4.66 GB | 2024-11-01 |
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| S921NKSU5AXJD/S921NOKR5AXJD/S921NKSU5AXJD | Odin | 264.67 MB | 2024-10-01 |
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| S921NKSSDCZB4/S921NOKRDCZB4/S921NKSSDCZB1 | Odin | 319.4 MB | 2026-02-01 |
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| S921NKSS4AXJ1/S921NOKR4AXJ1/S921NKSS4AXJ1 | Odin | 439.44 MB | 2024-10-01 |
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| S921NKSSACYJ3/S921NOKRACYJ3/S921NKSSACYJ1 | Odin | 352.66 MB | 2025-10-01 |
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| S921NKSU3AXH7/S921NOKR3AXH7/S921NKSU3AXH7 | Odin | 443.85 MB | 2024-08-01 |
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| S921NKSS3AXGJ/S921NOKR3AXGJ/S921NKSS3AXFD | Odin | 2.47 GB | 2024-07-01 |
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| S921NKSU3AXFG/S921NOKR3AXFG/S921NKSS3AXFD | Odin | 2.47 GB | 2024-06-01 |
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| S921NKSSBCYK2/S921NOKRBCYK2/S921NKSSBCYK1 | Odin | 352.06 MB | 2025-11-01 |
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| S921NKSU2AXE4/S921NOKR2AXE4/S921NKSU2AXE4 | Odin | 2.47 GB | 2024-05-01 |
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| S921NKSS2AXE1/S921NOKR2AXE1/S921NKSS2AXE1 | Odin | 2.47 GB | 2024-05-01 |
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| S921NKSSDCZC1/S921NOKRDCZC1/S921NKSSDCZB1 | Odin | 286.64 MB | 2026-03-01 |
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| S921NKSSCCZA1/S921NOKRCCZA1/S921NKSSCCZA1 | Odin | 292.97 MB | 2026-01-01 |
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| S921NKSSBCYL1/S921NOKRBCYL1/S921NKSSBCYL1 | Odin | 304.59 MB | 2025-12-01 |
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| S921NKSU1AWM9/S921NOKR1AWM9/S921NKSU1AWM7 | Odin | 2.51 GB | N/A |
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| S921NKSU1AXB5/S921NOKR1AXB5/S921NKSU1AWM7 | Odin | 2.51 GB | 2024-02-01 |
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| S921NKSU1AXB4/S921NOKR1AXB4/S921NKSU1AWM7 | Odin | 329.29 MB | 2024-02-01 |
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| S921NKSU1AXBD/S921NOKR1AXBD/S921NKSU1AWM7 | Odin | 514.35 MB | 2024-02-01 |
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| S921NKSU1AXBA/S921NOKR1AXBA/S921NKSU1AWM7 | Odin | 2.51 GB | 2024-02-01 |
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| S921NKSU1AXAB/S921NOKR1AXAB/S921NKSU1AWM7 | Odin | 349.44 MB | 2024-01-01 |
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| S921NKSU1AXCA/S921NOKR1AXCA/S921NKSU1AXCC | Odin | 2.47 GB | 2024-03-01 |
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| S921NKSUEDZDR/S921NOKREDZDR/S921NKSUEDZDR | Odin | 2.47 GB | 2026-04-01 |
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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 | ||
| 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, 7, 25, 28, 41, 66, 71, 78, 257, 258, 260, 261 SA/NSA/Sub6/mmWave - USA | ||
| Speed | HSPA, LTE (CA), 5G |
| Launch | Announced | 2024, January 17 |
|---|---|---|
| Status | Available. Released 2024, January 24 |
| Body | Dimensions | 147 x 70.6 x 7.6 mm (5.79 x 2.78 x 0.30 in) |
|---|---|---|
| Weight | 167 g or 168 g (5.89 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 (~90.9% screen-to-body ratio) | |
| Resolution | 1080 x 2340 pixels, 19.5:9 ratio (~416 ppi density) | |
| Protection | Corning Gorilla Glass Victus 2 |
| Platform | OS | Android 14, up to 7 major Android upgrades, One UI 8.5 |
|---|---|---|
| Chipset | Qualcomm SM8650-AC Snapdragon 8 Gen 3 (4 nm) - USA/Canada/China Exynos 2400 (4 nm) - International | |
| CPU | 8-core (1x3.39GHz Cortex-X4 & 3x3.1GHz Cortex-A720 & 2x2.9GHz Cortex-A720 & 2x2.2GHz Cortex-A520) 10-core (1x3.2GHz Cortex-X4 & 2x2.9GHz Cortex-A720 & 3x2.6GHz Cortex-A720 & 4x1.95GHz Cortex-A520) | |
| GPU | Adreno 750 (1 GHz) - USA/Canada/China Xclipse 940 - International |
| Memory | Card slot | No |
|---|---|---|
| Internal | 128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB 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, 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 | 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 |
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| Features | HDR, HDR10+ | |
| Video | 4K@30/60fps, 1080p@30fps |
| Sound | Loudspeaker | Yes, with stereo speakers |
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| 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, 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 (Qi) 4.5W reverse wireless |
| Misc | Colors | Onyx Black, Marble Grey, Cobalt Violet, Amber Yellow, Jade Green, Sandstone Orange, Sapphire Blue |
|---|---|---|
| Models | SM-S921B, SM-S921B/DS, SM-S921U, SM-S921U1, SM-S921W, SM-S921N, SM-S9210, SM-S921E, SM-S921E/DS | |
| SAR | 1.23 W/kg (head) 1.10 W/kg (body) | |
| SAR EU | 0.87 W/kg (head) 1.35 W/kg (body) | |
| Price | $ 268.99 / € 438.04 / £ 292.03 / ₹ 45,000 |
| Our Tests | Performance | AnTuTu: 1218977 (v9), 1696727 (v10) GeekBench: 5833 (v5), 6747 (v6) 3DMark: 4183 (Wild Life Extreme) |
|---|---|---|
| Display | 1401 nits max brightness (measured) | |
| Camera | Photo / Video | |
| Loudspeaker | -25.2 LUFS (Very good) | |
| Battery | Active use score 12:06h | |
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 S24 (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.
