A356U1UESBDZG4 – Galaxy A35 5G firmware

Build A356U1UESBDZG4 is a security update for the Galaxy A35 5G (SM-A356U1) on Android 16 (One UI 8). It first appeared on Samsung's servers on Jul 28, 2026 (method) and has reached 13 regions so far. It raises the bootloader bit from 10 to 11: once installed, the device no longer accepts firmware with bit 10 or lower, so a downgrade to A356U1UEUADZE8 is blocked. Samsung still serves this file.

Model
SM-A356U1
Android
Android 16
Type
Security
Bootloader bit
11
First released
Jul 28, 2026
Regions
13

Rollout timeline by region

The date each region code (CSC) first received A356U1UESBDZG4, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
ACGUSA (C Spire)Jul 28, 2026day 0A356U1UESBDZG4/A356U1OYMBDZG4/A356U1UESBDZG4
AIOUSA (Cricket)Jul 28, 2026day 0A356U1UESBDZG4/A356U1OYMBDZG4/A356U1UESBDZG4
ATTUSA (AT&T)Jul 28, 2026day 0A356U1UESBDZG4/A356U1OYMBDZG4/A356U1UESBDZG4
CCTUSA (Comcast)Jul 28, 2026day 0A356U1UESBDZG4/A356U1OYMBDZG4/A356U1UESBDZG4
DSAUSAJul 28, 2026day 0A356U1UESBDZG4/A356U1OYMBDZG4/A356U1UESBDZG4
DSHUSAJul 28, 2026day 0A356U1UESBDZG4/A356U1OYMBDZG4/A356U1UESBDZG4
LRAUSA (Bluegrass)Jul 28, 2026day 0A356U1UESBDZG4/A356U1OYMBDZG4/A356U1UESBDZG4
TMBUSA (T-Mobile)Jul 28, 2026day 0A356U1UESBDZG4/A356U1OYMBDZG4/A356U1UESBDZG4
TMKUSA (MetroPCS)Jul 28, 2026day 0A356U1UESBDZG4/A356U1OYMBDZG4/A356U1UESBDZG4
USCUSA (US Cellular)Jul 28, 2026day 0A356U1UESBDZG4/A356U1OYMBDZG4/A356U1UESBDZG4
VZWUSA (Verizon)Jul 28, 2026day 0A356U1UESBDZG4/A356U1OYMBDZG4/A356U1UESBDZG4
XAAUSA (unlocked)Jul 28, 2026day 0A356U1UESBDZG4/A356U1OYMBDZG4/A356U1UESBDZG4
XARUSA (Cellular South)Jul 28, 2026day 0A356U1UESBDZG4/A356U1OYMBDZG4/A356U1UESBDZG4

Download and release notes

samloader download -m SM-A356U1 -r XAA -v A356U1UESBDZG4/A356U1OYMBDZG4/A356U1UESBDZG4

Samsung's release notes and security patch level for this update: SM-A356U1 / XAA on doc.samsungmobile.com. What each part of the build number means: decode A356U1UESBDZG4.