ZipFirmwareZipFirmware
loginregister
ZipFirmware

Samsung Galaxy A15 5G (SM-A156U1) Firmware Downloads - Region: ATT

Explore, Download, and Update with Ease

Free, direct downloads of official stock firmware for the Samsung Galaxy A15 5G (model code SM-A156U1) in the ATT region. Pick a build to update, repair, or unbrick your device with the Odin tool.

download firmwareSamsung Galaxy A15 5G (SM-A156U1) — ATT
Samsung Galaxy A15 5G SM-A156U1 ATT firmware image
Released 2023, December 16
200g, 8.4mm thickness
Android 14, up to 16, One UI 8.5
64GB/128GB/256GB storage, microSDXC, card slot

Samsung Galaxy A15 5G Released 2023, December 16 | 200g, 8.4mm thickness | Android 14, up to 16, One UI 8.5 | 64GB/128GB/256GB storage, microSDXC | Super AMOLED, 90Hz, 800 nits (HBM) | 50 MP, f/1.8, (wide), AF 5 MP, f/2.2, (ultrawide) 2 MP (macro) | 5000 mAh

Samsung Galaxy A15 5G Network Specifications

Detailed Network specifications for the Samsung Galaxy A15 5G:
SpeedHSPA, LTE, 5G
5G1, 3, 5, 7, 8, 26, 28, 40, 41, 66, 77, 78 SA/NSA/Sub6
4G1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 38, 40, 41, 66
3GHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
2GGSM 850 / 900 / 1800 / 1900
TechnologyGSM / HSPA / LTE / 5G
Timeline
Released2023, December 16

Samsung Galaxy A15 5G body Specifications

Detailed body specifications for the Samsung Galaxy A15 5G:
SIM· Nano-SIM · Nano-SIM + Nano-SIM
BuildGlass front, plastic back, plastic frame
Weight200 g (7.05 oz)
Dimensions160.1 x 76.8 x 8.4 mm (6.30 x 3.02 x 0.33 in)

Samsung Galaxy A15 5G MISC Specifications

Detailed MISC specifications for the Samsung Galaxy A15 5G:
SAR EU0.80 W/kg (head) 1.46 W/kg (body)
ColorsBrave Black, Personality Yellow, Magical Blue, Optimistic Blue

Samsung Galaxy A15 5G display Specifications

Detailed display specifications for the Samsung Galaxy A15 5G:
Resolution1080 x 2340 pixels, 19.5:9 ratio (~396 ppi density)
Size6.5 inches, 103.7 cm 2 (~84.3% screen-to-body ratio)
TypeSuper AMOLED, 90Hz, 800 nits (HBM)

Samsung Galaxy A15 5G Sound Specifications

Detailed Sound specifications for the Samsung Galaxy A15 5G:
3.5mm jackYes
LoudspeakerYes

Samsung Galaxy A15 5G Platform Specifications

Detailed Platform specifications for the Samsung Galaxy A15 5G:
GPUMali-G57 MC2
CPUOcta-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
ChipsetMediatek Dimensity 6100+ (6 nm)
OSAndroid 14, upgradable to Android 16, One UI 8.5, up to 4 major Android upgrades

Samsung Galaxy A15 5G Battery Specifications

Detailed Battery specifications for the Samsung Galaxy A15 5G:
Charging25W wired
Battery5000 mAh

Samsung Galaxy A15 5G memory Specifications

Detailed memory specifications for the Samsung Galaxy A15 5G:
Internal64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM
Card slotmicroSDXC (uses shared SIM slot)

Samsung Galaxy A15 5G Main Camera Specifications

Detailed Main Camera specifications for the Samsung Galaxy A15 5G:
Video1080p@30fps, gyro-EIS
FeaturesLED flash, panorama, HDR
Camera50 MP, f/1.8, (wide), AF 5 MP, f/2.2, (ultrawide) 2 MP (macro)

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 2 distinct Samsung Galaxy A15 5G firmware versions found so far.

ATT Firmware Version History

VersionBuild DateSecurity Patch
A156U1UESCEZG12026-07-17—
A156U1UESBEZF62026-06-22—

2 Samsung Galaxy A15 5G firmware versions found for the ATT region, newest first.

Samsung Galaxy A15 5G ATT Firmware Archive

Official Samsung Galaxy A15 5G firmware for the United States ATT region, including BL, AP, CP, CSC and HOME_CSC packages for Odin flashing.

Showing 0 to 0 of 0 entries
Samsung Galaxy A15 5G Combination & Special Files

Combination and service files for the Samsung Galaxy A15 5G (SM-A156U1) — authorized repair, FRP reset after service, and diagnostics.

Device MobileVersionBit - SW
REV		FAChange listUpdatedStatus

Showing 0 to 0 of 0 entries

ATT Firmware FAQ

Which carriers use the ATT CSC on the Samsung Galaxy A15 5G?+

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 A15 5G firmware versions are available for the ATT region?+

2 distinct Samsung Galaxy A15 5G firmware versions have been found for the ATT (United States) region so far, from oldest to the latest build.

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.