X356BXXSBCZI3 – Galaxy Tab Active5 Pro 5G firmware

Build X356BXXSBCZI3 is a security update for the Galaxy Tab Active5 Pro 5G (SM-X356B) on Android 16 (One UI 8). It first appeared on Samsung's servers on Sep 20, 2026 (method) and has reached 26 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 X356BXXSACZH4 is blocked. Samsung still serves this file.

Model
SM-X356B
Android
Android 16
Type
Security
Bootloader bit
11
First released
Sep 20, 2026
Regions
26

Rollout timeline by region

The date each region code (CSC) first received X356BXXSBCZI3, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
EUXEurope (Multi-CSC)Sep 20, 2026day 0X356BXXSBCZI3/X356BOXMBCZI3/X356BXXSBCZI3
EUYEurope (Multi-CSC)Sep 20, 2026day 0X356BXXSBCZI3/X356BOXMBCZI3/X356BXXSBCZI3
TURTurkeySep 20, 2026day 0X356BXXSBCZI3/X356BOXMBCZI3/X356BXXSBCZI3
CHOChileSep 21, 2026+1 dayX356BXXSBCZI3/X356BOWOBCZI3/X356BXXSBCZI3
COOColombiaSep 21, 2026+1 dayX356BXXSBCZI3/X356BOWOBCZI3/X356BXXSBCZI3
GTOGuatemalaSep 21, 2026+1 dayX356BXXSBCZI3/X356BOWOBCZI3/X356BXXSBCZI3
MXOMexicoSep 21, 2026+1 dayX356BXXSBCZI3/X356BOWOBCZI3/X356BXXSBCZI3
PEOPeruSep 21, 2026+1 dayX356BXXSBCZI3/X356BOWOBCZI3/X356BXXSBCZI3
BRITaiwanSep 21, 2026+1 dayX356BXXSBCZI3/X356BOXMBCZI3/X356BXXSBCZI3
CAUCaucasusSep 21, 2026+1 dayX356BXXSBCZI3/X356BOXMBCZI3/X356BXXSBCZI3
SKZKazakhstanSep 21, 2026+1 dayX356BXXSBCZI3/X356BOXMBCZI3/X356BXXSBCZI3
THLThailandSep 21, 2026+1 dayX356BXXSBCZI3/X356BOXMBCZI3/X356BXXSBCZI3
XMEMalaysiaSep 21, 2026+1 dayX356BXXSBCZI3/X356BOXMBCZI3/X356BXXSBCZI3
XSPSingaporeSep 21, 2026+1 dayX356BXXSBCZI3/X356BOXMBCZI3/X356BXXSBCZI3
XXVVietnamSep 21, 2026+1 dayX356BXXSBCZI3/X356BOXMBCZI3/X356BXXSBCZI3
XNZNew ZealandSep 23, 2026+3 daysX356BXXSBCZI3/X356BOXMBCZI3/X356BXXSBCZI3
XSAAustraliaSep 23, 2026+3 daysX356BXXSBCZI3/X356BOXMBCZI3/X356BXXSBCZI3
XIDIndonesiaSep 27, 2026+7 daysX356BXXSBCZI3/X356BOXMBCZI3/X356BXXSBCZI3
EGYEgyptSep 29, 2026+9 daysX356BXXSBCZI3/X356BOXMBCZI3/X356BXXSBCZI3
ILOIsraelSep 29, 2026+9 daysX356BXXSBCZI3/X356BOXMBCZI3/X356BXXSBCZI3
KSASaudi ArabiaSep 29, 2026+9 daysX356BXXSBCZI3/X356BOXMBCZI3/X356BXXSBCZI3
MIDMiddle EastSep 29, 2026+9 daysX356BXXSBCZI3/X356BOXMBCZI3/X356BXXSBCZI3
MWDMoroccoSep 29, 2026+9 daysX356BXXSBCZI3/X356BOXMBCZI3/X356BXXSBCZI3
PAKPakistanSep 29, 2026+9 daysX356BXXSBCZI3/X356BOXMBCZI3/X356BXXSBCZI3
XSGUnited Arab EmiratesSep 29, 2026+9 daysX356BXXSBCZI3/X356BOXMBCZI3/X356BXXSBCZI3
XFASouth AfricaSep 29, 2026+9 daysX356BXXSBCZI3/X356BOXMBCZI3/X356BXXSBCZI4

Download and release notes

samloader download -m SM-X356B -r EUX -v X356BXXSBCZI3/X356BOXMBCZI3/X356BXXSBCZI3

Samsung's release notes and security patch level for this update: SM-X356B / EUX on doc.samsungmobile.com. What each part of the build number means: decode X356BXXSBCZI3.