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Samsung Galaxy S8+ (SM-G955U1) Firmware Downloads - Region: ATT

Explore, Download, and Update with Ease

Free, direct downloads of official stock firmware for the Samsung Galaxy S8+ (model code SM-G955U1) in the ATT region. Pick a build to update, repair, or unbrick your device with the Odin tool.

download firmwareSamsung Galaxy S8+ (SM-G955U1) — ATT
Samsung Galaxy S8+ SM-G955U1 ATT firmware image
Released 2017, April 1
173g, 8.1mm thickness
Android 7.0, up to Android 9.0, One UI
64GB/128GB storage, microSDXC, card slot

Samsung Galaxy S8+ Released 2017, April | 173g, 8.1mm thickness | Android 7.0, up to Android 9.0, One UI | 64GB/128GB storage, microSDXC | Super AMOLED | 12 MP, f/1.7, 26mm (wide), 1/2.55", 1.4µm, dual pixel PDAF, OIS | Li-Ion 3500 mAh, non-removable (13.48 Wh)

Samsung Galaxy S8+ Network Specifications

Detailed Network specifications for the Samsung Galaxy S8+:
SpeedHSPA 42.2/5.76 Mbps, LTE (5CA) Cat16 1024/150 Mbps
4G1, 2, 3, 4, 5, 7, 8, 17, 20, 28
3GHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
2GGSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)
TechnologyGSM / HSPA / LTE
Timeline
Released2017, April 1

Samsung Galaxy S8+ body Specifications

Detailed body specifications for the Samsung Galaxy S8+:
SIM· Nano-SIM · Nano-SIM + Nano-SIM
BuildGlass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame
Weight173 g (6.10 oz)
Dimensions159.5 x 73.4 x 8.1 mm (6.28 x 2.89 x 0.32 in)

Samsung Galaxy S8+ MISC Specifications

Detailed MISC specifications for the Samsung Galaxy S8+:
SAR EU0.27 W/kg (head) 1.00 W/kg (body)
SAR US0.67 W/kg (head) 0.97 W/kg (body)
ColorsMidnight Black, Orchid Gray, Arctic Silver, Coral Blue, Maple Gold, Rose Pink

Samsung Galaxy S8+ display Specifications

Detailed display specifications for the Samsung Galaxy S8+:
ProtectionCorning Gorilla Glass 5
Resolution1440 x 2960 pixels, 18.5:9 ratio (~529 ppi density)
Size6.2 inches, 98.3 cm 2 (~84.0% screen-to-body ratio)
TypeSuper AMOLED

Samsung Galaxy S8+ Sound Specifications

Detailed Sound specifications for the Samsung Galaxy S8+:
3.5mm jackYes
LoudspeakerYes

Samsung Galaxy S8+ Platform Specifications

Detailed Platform specifications for the Samsung Galaxy S8+:
GPUMali-G71 MP20 - EMEA Adreno 540 - USA & China
CPUOcta-core (4x2.3 GHz Mongoose M2 & 4x1.7 GHz Cortex-A53) - EMEA Octa-core (4x2.35 GHz Kryo & 4x1.9 GHz Kryo) - USA & China
ChipsetExynos 8895 (10 nm) - EMEA Qualcomm MSM8998 Snapdragon 835 (10 nm) - USA & China
OSAndroid 7.0 (Nougat), upgradable to Android 9.0 (Pie), One UI

Samsung Galaxy S8+ Battery Specifications

Detailed Battery specifications for the Samsung Galaxy S8+:
Charging15W wired, QC2 Wireless (Qi) (market dependent)
BatteryLi-Ion 3500 mAh, non-removable (13.48 Wh)

Samsung Galaxy S8+ memory Specifications

Detailed memory specifications for the Samsung Galaxy S8+:
Internal64GB 4GB RAM, 128GB 6GB RAM
Card slotmicroSDXC (uses shared SIM slot) - dual SIM model only

Samsung Galaxy S8+ Main Camera Specifications

Detailed Main Camera specifications for the Samsung Galaxy S8+:
Video4K@30fps, 1080p@30/60fps, 720p@240fps, HDR, stereo sound rec., gyro-EIS, OIS
FeaturesLED flash, auto-HDR, panorama
Camera12 MP, f/1.7, 26mm (wide), 1/2.55", 1.4µm, dual pixel PDAF, OIS

ATT Region Firmware Info

United States flagATT - United States
AT&T

A CSC (Consumer Software Customization) code ties a Samsung firmware build to the country and carrier it was released for, controlling branding, available languages and which OTA updates a device receives. The ATT code is used in United States by AT&T, with one Samsung Galaxy S8+ firmware version known so far.

Samsung Galaxy S8+ ATT Firmware Archive

Official Samsung Galaxy S8+ firmware for the United States ATT region, including BL, AP, CP, CSC and HOME_CSC packages for Odin flashing.

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Samsung Galaxy S8+ Combination & Special Files

Combination and service files for the Samsung Galaxy S8+ (SM-G955U1) — authorized repair, FRP reset after service, and diagnostics.

Device MobileVersionBit - SW
REV		FAChange listUpdatedStatus

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ATT Firmware FAQ

Which carriers use the ATT CSC on the Samsung Galaxy S8+?+

The ATT CSC is used by AT&T in United States. Flash the ATT firmware only if your device was sold through one of these carriers.

How many Samsung Galaxy S8+ firmware versions are available for the ATT region?+

Currently one known Samsung Galaxy S8+ firmware version is available for the ATT (United States) region.

How is the ATT CSC different from other region codes?+

Samsung ties every firmware build to one of roughly 599 CSC (Consumer Software Customization) codes, each tied to a specific country and carrier. ATT is the code for United States (AT&T) — flashing a different CSC can change your carrier branding, available languages and which OTA updates you receive.