What is firmware for Samsung Galaxy S8+ (USA carrier)?

Firmware is the system software that runs on your Samsung Galaxy S8+ (USA carrier) device. It includes the operating system and core system software. Official firmware ensures stability, security, and performance of your device.

How do I install Samsung Galaxy S8+ (USA carrier) firmware?

Download the firmware file from FirmwareMirror, verify the MD5 checksum, and use official tools like Mi Unlock Tool or Fastboot to flash the firmware. Always backup your data before flashing.

Is it safe to download firmware from FirmwareMirror?

Yes, FirmwareMirror provides official firmware files. We verify MD5 checksums and provide multiple mirrors for reliability. Always verify the checksum after download.

What are regional firmware versions?

Regional versions are firmware builds optimized for specific countries or regions. They may include region-specific apps, languages, and network compatibility.

Is it safe to flash official firmware?

Yes, flashing official firmware is generally safe and won't void your warranty if done through official methods.

What's the difference between Recovery and Fastboot ROMs?

Recovery ROMs are flashed from recovery mode, while Fastboot ROMs require bootloader unlock and ADB tools.

Can I downgrade to an older firmware version?

Some devices allow downgrading, but it depends on the device and region. Check device-specific forums first.

What if flashing fails?

If flashing fails, try using the official tool, ensure USB drivers are installed, and check device compatibility.

Download Samsung Galaxy S8+ (USA carrier) Firmware & MIUI ROM [sm-g955u]

Firmware Downloads

Find and download official MIUI firmware for Samsung Galaxy S8+ (USA carrier) (sm-g955u). All firmware files include MD5 hash verification and are available for direct download.

Samsung Galaxy S8+ (USA carrier)

Version	Method	Size	Release Date	MD5 Hash	Download
G955USQS8DTI5/G955UOYN8DTI5/G955USQS8DTI5	Odin	204 B	N/A	`N/A`	Download
G955USQS8DTI4/G955UOYN8DTI4/G955USQS8DTI4	Odin	204 B	N/A	`N/A`	Download
G955USQU8DUD3/G955UOYN8DUD3/G955USQU8DUD3	Odin	466 B	2021-04-01	`N/A`	Download
G955USQU8DTI3/G955UOYN8DTI3/G955USQU8DTI3	Odin	198 B	N/A	`N/A`	Download
G955USQS8DTJ3/G955UOYN8DTJ3/G955USQS8DTJ3	Odin	197 B	N/A	`N/A`	Download
G955USQU8DUA2/G955UOYN8DUA2/G955USQU8DUA2	Odin	185 B	2021-01-01	`N/A`	Download
G955USQS8DTJ2/G955UOYN8DTJ2/G955USQS8DTJ2	Odin	203 B	N/A	`N/A`	Download
G955USQS8DTJ1/G955UOYN8DTJ1/G955USQS8DTJ1	Odin	204 B	N/A	`N/A`	Download
G955USQS7DTA6/G955UOYN7DTA6/G955USQS7DTA6	Odin	252 B	N/A	`N/A`	Download
G955USQU7DTF4/G955UOYN7DTF4/G955USQU7DTF4	Odin	207 B	N/A	`N/A`	Download
G955USQU7DSL3/G955UOYN7DSL3/G955USQU7DSL3	Odin	257 B	N/A	`N/A`	Download
G955USQS7DTB3/G955UOYN7DTB3/G955USQS7DTB3	Odin	252 B	N/A	`N/A`	Download
G955USQS7DTA3/G955UOYN7DTA3/G955USQS7DTA3	Odin	255 B	N/A	`N/A`	Download
G955USQU7DTG2/G955UOYN7DTG2/G955USQU7DTG2	Odin	207 B	N/A	`N/A`	Download
G955USQS7DSL2/G955UOYN7DSL2/G955USQS7DSL2	Odin	474 B	N/A	`N/A`	Download
G955USQS7DSK2/G955UOYN7DSK2/G955USQS7DSK2	Odin	476 B	N/A	`N/A`	Download
G955USQU6DSH8/G955UOYN6DSH8/G955USQU6DSH8	Odin	558 B	N/A	`N/A`	Download
G955USQU6DSG7/G955UOYN6DSG7/G955USQU6DSG7	Odin	609 B	N/A	`N/A`	Download
G955USQU6DSJ6/G955UOYN6DSJ6/G955USQU6DSJ6	Odin	481 B	N/A	`N/A`	Download
G955USQS6DSI4/G955UOYN6DSI4/G955USQS6DSI4	Odin	604 B	N/A	`N/A`	Download
G955USQS6DSG4/G955UOYN6DSG4/G955USQS6DSG4	Odin	706 B	N/A	`N/A`	Download
G955USQS6DSJ3/G955UOYN6DSJ3/G955USQS6DSJ3	Odin	557 B	N/A	`N/A`	Download
G955USQS6DSH3/G955UOYN6DSH3/G955USQS6DSH3	Odin	699 B	N/A	`N/A`	Download
G955USQS6DSH2/G955UOYN6DSH2/G955USQS6DSH2	Odin	604 B	N/A	`N/A`	Download
G955USQS6DSJ1/G955UOYN6DSJ1/G955USQS6DSJ1	Odin	602 B	N/A	`N/A`	Download
G955USQS5DSE5/G955UOYN5DSE5/G955USQS5DSE5	Odin	726 B	N/A	`N/A`	Download
G955USQU5DSD3/G955UOYN5DSD3/G955USQU5DSD3	Odin	727 B	N/A	`N/A`	Download
G955USQS5DSF2/G955UOYN5DSF2/G955USQS5DSF2	Odin	717 B	N/A	`N/A`	Download
G955USQU5DSC1/G955UOYN5DSC1/G955USQU5DSC1	Odin	737 B	N/A	`N/A`	Download
G955USQU5DSDA/G955UOYN5DSDA/G955USQU5DSDA	Odin	709 B	N/A	`N/A`	Download

Device Specifications

ALL VERSIONS

G955F

G955FD

G955U

G955A

G955P

G955T

G955V

G955R4

G955W

G9550

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
Launch	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)
	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
		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)
	Charging	15W wired, QC2 Wireless (Qi) (market dependent)

Misc	Colors	Midnight Black, Orchid Gray, Arctic Silver, Coral Blue, Maple Gold, Rose Pink
	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)
	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

Data source: GSMArena

Samsung Galaxy S8+ (USA carrier)