Free, direct downloads of official stock firmware for the Samsung Galaxy A15 5G (model code SM-A156U1) in the ATC region. Pick a build to update, repair, or unbrick your device with the Odin tool.
Samsung Galaxy A15 5G (SM-A156U1) — ATC
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:
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 ATC code is used in United States by Unbranded, with 2 distinct Samsung Galaxy A15 5G firmware versions found so far.
2 Samsung Galaxy A15 5G firmware versions found for the ATC region, newest first.
Samsung Galaxy A15 5G ATC Firmware Archive
Official Samsung Galaxy A15 5G firmware for the United States ATC region, including BL, AP, CP, CSC and HOME_CSC packages for Odin flashing.
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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 Mobile
Version
Bit - SW REV
FA
Change list
Updated
Status
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ATC Firmware FAQ
Which carriers use the ATC CSC on the Samsung Galaxy A15 5G?+
The ATC CSC is used by Unbranded in United States. Flash the ATC firmware only if your device was sold through one of these carriers.
How many Samsung Galaxy A15 5G firmware versions are available for the ATC region?+
2 distinct Samsung Galaxy A15 5G firmware versions have been found for the ATC (United States) region so far, from oldest to the latest build.
How is the ATC 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. ATC is the code for United States (Unbranded) — flashing a different CSC can change your carrier branding, available languages and which OTA updates you receive.
Samsung Galaxy A15 5G (SM-A156U1) — ATC
ATC - United States
Samsung Galaxy A15 5G ATC Firmware Archive
Samsung Galaxy A15 5G Combination & Special Files