Samsung Galaxy S8+ (USA unlocked) is a samsung device (codename: sm-g955u1). FirmwareMirror hosts 20 verified firmware builds, covering: ACG, AIO. Available as official firmware. Last updated: April 2022. All files MD5-verified. Free, no registration.
Find and download official Stock ROM for Samsung Galaxy S8+ (USA unlocked) (sm-g955u1). 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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| G955U1UEU8DVD4/G955U1OYM8DVD4/G955U1UEU8DVD4 | Odin | 1.15 GB | 2022-04-01 |
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| G955U1UEU8DUG4/G955U1OYM8DUG4/G955U1UEU8DUG4 | Odin | 244.08 MB | 2021-07-01 |
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| G955U1UEU8DUD3/G955U1OYM8DUD3/G955U1UEU8DUD3 | Odin | 58.41 MB | 2021-04-01 |
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| G955U1UES8DTI3/G955U1OYM8DTI3/G955U1UES8DTI3 | Odin | 131.16 MB | N/A |
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| G955U1UES8DUB1/G955U1OYM8DUB1/G955U1UES8DUB1 | Odin | 117.61 MB | 2021-02-01 |
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| G955U1UES8DTJ1/G955U1OYM8DTJ1/G955U1UES8DTJ1 | Odin | 121.46 MB | N/A |
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| G955U1UEU7DSL5/G955U1OYM7DSL5/G955U1UEU7DSL5 | Odin | 165.62 MB | N/A |
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| G955U1UEU7DTF4/G955U1OYM7DTF4/G955U1UEU7DTF4 | Odin | 134.39 MB | N/A |
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| G955U1UES7DSK4/G955U1OYM7DSK4/G955U1UES7DSK4 | Odin | 285.93 MB | N/A |
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| G955U1UES7DTB2/G955U1OYM7DTB2/G955U1UES7DTB2 | Odin | 158.04 MB | N/A |
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| G955U1UES7DSL2/G955U1OYM7DSL2/G955U1UES7DSL2 | Odin | 283.91 MB | N/A |
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| G955U1UES7DTC1/G955U1OYM7DTC1/G955U1UES7DTC1 | Odin | 157.77 MB | N/A |
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| G955U1UEU6DSJ4/G955U1OYM6DSJ4/G955U1UEU6DSJ4 | Odin | 290.49 MB | N/A |
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| G955U1UES6DSJ1/G955U1OYM6DSJ1/G955U1UES6DSJ1 | Odin | 579.4 MB | N/A |
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| G955U1UES6DSI1/G955U1OYM6DSI1/G955U1UES6DSI1 | Odin | 581.28 MB | N/A |
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| G955U1UES6DSH1/G955U1OYM6DSH1/G955U1UES6DSH1 | Odin | 586.65 MB | N/A |
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| G955U1UES6DSG1/G955U1OYM6DSG1/G955U1UES6DSG1 | Odin | 593.62 MB | N/A |
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| G955U1UEU5DSD5/G955U1OYM5DSD5/G955U1UEU5DSD5 | Odin | 610.57 MB | N/A |
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| G955U1UES5DSF3/G955U1OYM5DSF3/G955U1UES5DSF3 | Odin | 602.72 MB | N/A |
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| G955U1UEU5DSC1/G955U1OYM5DSC1/G955U1UEU5DSC1 | Odin | 622.79 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 |
|---|---|---|
| 3.5mm jack | Yes | |
| 32-bit/384kHz audio |
| Comms | WLAN | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct |
|---|---|---|
| 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+ (USA unlocked) 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.
