A156USQSCEZG1 – Galaxy A15 5G firmware

Build A156USQSCEZG1 is a security update for the Galaxy A15 5G (SM-A156U) on Android 16 (One UI 8). It first appeared on Samsung's servers on Jul 29, 2026 (method) and has reached 9 regions so far. It raises the bootloader bit from 11 to 12: once installed, the device no longer accepts firmware with bit 11 or lower, so a downgrade to A156USQSBEZF6 is blocked. Samsung still serves this file.

Model
SM-A156U
Android
Android 16
Type
Security
Bootloader bit
12
First released
Jul 29, 2026
Regions
9

Rollout timeline by region

The date each region code (CSC) first received A156USQSCEZG1, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
TMBUSA (T-Mobile)Jul 29, 2026day 0A156USQSCEZG1/A156UOYNCEZG1/A156USQSCEZG1
TMKUSA (MetroPCS)Jul 29, 2026day 0A156USQSCEZG1/A156UOYNCEZG1/A156USQSCEZG1
ATTUSA (AT&T)Jul 29, 2026day 0A156USQSCEZG1/A156UOYNCEZG1/A156USQSCEZG1
DSHUSAJul 30, 2026+1 dayA156USQSCEZG1/A156UOYNCEZG1/A156USQSCEZG1
DSAUSAJul 30, 2026+1 dayA156USQSCEZG1/A156UOYNCEZG1/A156USQSCEZG1
AIOUSA (Cricket)Jul 31, 2026+2 daysA156USQSCEZG1/A156UOYNCEZG1/A156USQSCEZG1
VZWUSA (Verizon)Jul 31, 2026+2 daysA156USQSCEZG1/A156UOYNCEZG1/A156USQSCEZG1
CCTUSA (Comcast)Aug 2, 2026+4 daysA156USQSCEZG1/A156UOYNCEZG1/A156USQSCEZG1
USCUSA (US Cellular)Aug 2, 2026+4 daysA156USQSCEZG1/A156UOYNCEZG1/A156USQSCEZG1

Download and release notes

samloader download -m SM-A156U -r TMB -v A156USQSCEZG1/A156UOYNCEZG1/A156USQSCEZG1

Samsung's release notes and security patch level for this update: SM-A156U / TMB on doc.samsungmobile.com. What each part of the build number means: decode A156USQSCEZG1.