Samsung Galaxy S8+ (SM-G9550) is a samsung device (codename: sm-g9550). FirmwareMirror hosts 38 verified firmware builds, covering: CHC, TGY. Available as official firmware. Last updated: April 2021. All files MD5-verified. Free, no registration.
Find and download official Stock ROM for Samsung Galaxy S8+ (SM-G9550) (sm-g9550). 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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| G9550ZCU6DTG2/G9550CHC6DTG2/G9550ZCU6DTG2 | Odin | 127.42 MB | N/A |
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| G9550ZCU6DTL2/G9550CHC6DTL2/G9550ZCU6DTL2 | Odin | 57.93 MB | N/A |
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| G9550ZHU6DTG2/G9550ZZH6DTG2/G9550ZHU6DTI1 | Odin | 113.4 MB | N/A |
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| G9550ZHS6DUD1/G9550ZZH6DUD1/G9550ZHS6DUD1 | Odin | 960.55 MB | 2021-04-01 |
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| G9550ZCS6DUD1/G9550CHC6DUD1/G9550ZCS6DUD1 | Odin | 1.79 GB | 2021-04-01 |
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| G9550ZCU6DUC1/G9550CHC6DUC1/G9550ZCU6DUC1 | Odin | 51.98 MB | 2021-03-01 |
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| G9550ZHU6DTJ1/G9550ZZH6DTJ1/G9550ZHU6DTJ1 | Odin | 109.53 MB | N/A |
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| G9550ZHU6DTL1/G9550ZZH6DTL1/G9550ZHU6DTL1 | Odin | 53.77 MB | N/A |
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| G9550ZCS6DTJ1/G9550CHC6DTJ1/G9550ZCS6DTJ1 | Odin | 127.1 MB | N/A |
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| G9550ZHU5DTF4/G9550ZZH5DTF4/G9550ZHU5DTF4 | Odin | 118.97 MB | N/A |
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| G9550ZCU5DTF3/G9550CHC5DTF3/G9550ZCU5DTF3 | Odin | 133.71 MB | N/A |
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| G9550ZHU5DSK2/G9550ZZH5DSK2/G9550ZHU5DSK2 | Odin | 369.04 MB | N/A |
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| G9550ZCU5DSK2/G9550CHC5DSK2/G9550ZCU5DSK2 | Odin | 272.76 MB | N/A |
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| G9550ZHS5DTC1/G9550ZZH5DTC1/G9550ZHS5DTC1 | Odin | 350.72 MB | N/A |
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| G9550ZHU5DTA1/G9550ZZH5DTA1/G9550ZHU5DTA1 | Odin | 353.16 MB | N/A |
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| G9550ZHU5DTB1/G9550ZZH5DTB1/G9550ZHU5DTB1 | Odin | 350.81 MB | N/A |
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| G9550ZCS5DTC1/G9550CHC5DTC1/G9550ZCS5DTC1 | Odin | 248.26 MB | N/A |
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| G9550ZCU5DTA1/G9550CHC5DTA1/G9550ZCU5DTA1 | Odin | 250.89 MB | N/A |
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| G9550ZCU5DTB1/G9550CHC5DTB1/G9550ZCU5DTB1 | Odin | 248.34 MB | N/A |
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| G9550ZHU4DSH2/G9550ZZH4DSH2/G9550ZHU4DSH3 | Odin | 537.58 MB | N/A |
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| G9550ZCU4DSH2/G9550CHC4DSH2/G9550ZCU4DSH3 | Odin | 447.08 MB | N/A |
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| G9550ZHS4DSJ2/G9550ZZH4DSJ2/G9550ZHS4DSJ2 | Odin | 482.07 MB | N/A |
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| G9550ZHU4DSG2/G9550ZZH4DSG2/G9550ZHU4DSG2 | Odin | 567.85 MB | N/A |
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| G9550ZHU4DSI2/G9550ZZH4DSI2/G9550ZHU4DSI2 | Odin | 482.18 MB | N/A |
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| G9550ZCU4DSG2/G9550CHC4DSG2/G9550ZCU4DSG2 | Odin | 467.27 MB | N/A |
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| G9550ZCS4DSJ2/G9550CHC4DSJ2/G9550ZCS4DSJ2 | Odin | 445.54 MB | N/A |
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| G9550ZCS4DSI1/G9550CHC4DSI1/G9550ZCS4DSI1 | Odin | 446.56 MB | N/A |
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| G9550ZCU3DSC9/G9550CHC3DSC9/G9550ZCU3DSC9 | Odin | 532.13 MB | N/A |
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| G9550ZHU3DSC7/G9550ZZH3DSC7/G9550ZHU3DSC9 | Odin | 637.69 MB | N/A |
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| G9550ZCS3DSF5/G9550CHC3DSF5/G9550ZCS3DSF5 | Odin | 520.89 MB | N/A |
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| G9550ZHS3DSF5/G9550ZZH3DSF5/G9550ZHS3DSF5 | Odin | 622.5 MB | N/A |
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| G9550ZCS3DSD5/G9550CHC3DSD5/G9550ZCS3DSD5 | Odin | 531.51 MB | N/A |
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| G9550ZHU3DSD3/G9550ZZH3DSD3/G9550ZHU3DSD3 | Odin | 637.12 MB | N/A |
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| G9550ZHU3DSF2/G9550ZZH3DSF2/G9550ZHU3DSF2 | Odin | 631.65 MB | N/A |
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| G9550ZHS3DSE2/G9550ZZH3DSE2/G9550ZHS3DSE2 | Odin | 636.77 MB | N/A |
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| G9550ZCU3DSF2/G9550CHC3DSF2/G9550ZCU3DSF2 | Odin | 529.88 MB | N/A |
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| G9550ZCU3DSD1/G9550CHC3DSD1/G9550ZCU3DSD3 | Odin | 532.02 MB | N/A |
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| G9550ZHU3DSD1/G9550ZZH3DSD1/G9550ZHU3DSD1 | Odin | 637.2 MB | N/A |
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Versions: G955F (Europe, Global Single-SIM); G955FD (Global Dual-SIM); G955W (Canada); G955A (AT&T); G955P (Sprint); G955T (T-Mobile); G955V (Verizon); G955R4 (US Cellular); G955U (USA Unlocked); G955S/G955K/G955L (South Korea); G9550 (China). Available in India, China and Korea with 128 GB storage and 6 GB RAM. Also known as Samsung Galaxy S8 Plus.
| Network | Technology | GSM / HSPA / LTE |
|---|---|---|
| 2G bands | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) | |
| 3G bands | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 | |
| 4G bands | 1, 2, 3, 4, 5, 7, 8, 17, 20, 28 | |
| Speed | HSPA 42.2/5.76 Mbps, LTE (5CA) Cat16 1024/150 Mbps |
| Launch | Announced | 2017, March 29. Released 2017, April |
|---|---|---|
| Status | Discontinued |
| Body | Dimensions | 159.5 x 73.4 x 8.1 mm (6.28 x 2.89 x 0.32 in) |
|---|---|---|
| Weight | 173 g (6.10 oz) | |
| Build | Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame | |
| SIM | · Nano-SIM · Nano-SIM + Nano-SIM | |
| IP68 dust tight and water resistant (immersible up to 1.5m for 30 min) |
| Display | Type | Super AMOLED |
|---|---|---|
| Size | 6.2 inches, 98.3 cm2 (~84.0% screen-to-body ratio) | |
| Resolution | 1440 x 2960 pixels, 18.5:9 ratio (~529 ppi density) | |
| Protection | Corning Gorilla Glass 5 |
| Platform | OS | Android 7.0 (Nougat), upgradable to Android 9.0 (Pie), One UI |
|---|---|---|
| Chipset | Exynos 8895 (10 nm) - EMEA Qualcomm MSM8998 Snapdragon 835 (10 nm) - USA & China | |
| CPU | Octa-core (4x2.3 GHz Mongoose M2 & 4x1.7 GHz Cortex-A53) - EMEA Octa-core (4x2.35 GHz Kryo & 4x1.9 GHz Kryo) - USA & China | |
| GPU | Mali-G71 MP20 - EMEA Adreno 540 - USA & China |
| Memory | Card slot | microSDXC (uses shared SIM slot) - dual SIM model only |
|---|---|---|
| Internal | 64GB 4GB RAM, 128GB 6GB RAM | |
| UFS 2.0 or UFS 2.1 |
| Main Camera | Single | 12 MP, f/1.7, 26mm (wide), 1/2.55", 1.4µm, dual pixel PDAF, OIS |
|---|---|---|
| Features | LED flash, auto-HDR, panorama | |
| Video | 4K@30fps, 1080p@30/60fps, 720p@240fps, HDR, stereo sound rec., gyro-EIS, OIS |
| Selfie camera | Dual | 8 MP, f/1.7, 25mm (wide), 1/3.6", 1.22µm, AF 2 MP (dedicated iris scanner camera) |
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| Features | HDR | |
| Video | 1440p@30fps |
| Sound | Loudspeaker | Yes |
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| 3.5mm jack | Yes | |
| 32-bit/384kHz audio |
| Comms | WLAN | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct |
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| Bluetooth | 5.0, A2DP, LE, aptX | |
| Positioning | GPS, GLONASS, BDS, GALILEO | |
| NFC | Yes | |
| Radio | No | |
| USB | USB Type-C 3.1 |
| Features | Sensors | Iris scanner, fingerprint (rear-mounted), accelerometer, gyro, proximity, compass, barometer, heart rate, SpO2 |
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| Samsung DeX (desktop experience support) ANT+ Bixby natural language commands and dictation Samsung Pay (Visa, MasterCard certified) |
| Battery | Type | Li-Ion 3500 mAh, non-removable (13.48 Wh) |
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| Charging | 15W wired, QC2 Wireless (Qi) (market dependent) |
| Misc | Colors | Midnight Black, Orchid Gray, Arctic Silver, Coral Blue, Maple Gold, Rose Pink |
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| Models | SM-G955F, SM-G955FD, SM-G955W, SM-G955A, SM-G955P, SM-G955T, SM-G955V, SM-G955R4, SM-G955U, SM-G955S, SM-G955K, SM-G955L, SM-G955, SM-G955U1, SM-G955N, SM-G9550, SC-03J, G955F | |
| SAR | 0.67 W/kg (head) 0.97 W/kg (body) | |
| SAR EU | 0.27 W/kg (head) 1.00 W/kg (body) | |
| Price | About 430 EUR |
| Our Tests | Performance | GeekBench: 6754 (v4.4) GFXBench: 13fps (ES 3.1 onscreen) |
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| Display | Contrast ratio: Infinite (nominal), 4.658(sunlight) | |
| Camera | Photo / Video | |
| Loudspeaker | Voice 68dB / Noise 69dB / Ring 71dB | |
| Audio quality | Noise -92.2dB / Crosstalk -93.3dB | |
| Battery (old) | Endurance rating 88h | |
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 S8+ (SM-G9550) 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.
