X356BXXS8CZF2 – Galaxy Tab Active5 Pro 5G firmware

Build X356BXXS8CZF2 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 Jun 24, 2026 (method) and has reached 26 regions so far. It raises the bootloader bit from 7 to 8: once installed, the device no longer accepts firmware with bit 7 or lower, so a downgrade to X356BXXU7CZE4 is blocked. Samsung still serves this file.

Model
SM-X356B
Android
Android 16
Type
Security
Bootloader bit
8
First released
Jun 24, 2026
Regions
26

Rollout timeline by region

The date each region code (CSC) first received X356BXXS8CZF2, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
EUXEurope (Multi-CSC)Jun 24, 2026day 0X356BXXS8CZF2/X356BOXM8CZF2/X356BXXS8CZF2
EUYEurope (Multi-CSC)Jun 24, 2026day 0X356BXXS8CZF2/X356BOXM8CZF2/X356BXXS8CZF2
TURTurkeyJun 24, 2026day 0X356BXXS8CZF2/X356BOXM8CZF2/X356BXXS8CZF2
BRITaiwanJun 24, 2026day 0X356BXXS8CZF2/X356BOXM8CZF2/X356BXXS8CZF2
THLThailandJun 24, 2026day 0X356BXXS8CZF2/X356BOXM8CZF2/X356BXXS8CZF2
XIDIndonesiaJun 24, 2026day 0X356BXXS8CZF2/X356BOXM8CZF2/X356BXXS8CZF2
XMEMalaysiaJun 24, 2026day 0X356BXXS8CZF2/X356BOXM8CZF2/X356BXXS8CZF2
XSPSingaporeJun 24, 2026day 0X356BXXS8CZF2/X356BOXM8CZF2/X356BXXS8CZF2
XXVVietnamJun 24, 2026day 0X356BXXS8CZF2/X356BOXM8CZF2/X356BXXS8CZF2
CHOChileJun 25, 2026+1 dayX356BXXS8CZF2/X356BOWO8CZF2/X356BXXS8CZF2
COOColombiaJun 25, 2026+1 dayX356BXXS8CZF2/X356BOWO8CZF2/X356BXXS8CZF2
GTOGuatemalaJun 25, 2026+1 dayX356BXXS8CZF2/X356BOWO8CZF2/X356BXXS8CZF2
MXOMexicoJun 25, 2026+1 dayX356BXXS8CZF2/X356BOWO8CZF2/X356BXXS8CZF2
PEOPeruJun 25, 2026+1 dayX356BXXS8CZF2/X356BOWO8CZF2/X356BXXS8CZF2
XNZNew ZealandJun 28, 2026+4 daysX356BXXS8CZF2/X356BOXM8CZF2/X356BXXS8CZF2
XSAAustraliaJun 28, 2026+4 daysX356BXXS8CZF2/X356BOXM8CZF2/X356BXXS8CZF2
CAUCaucasusJun 28, 2026+4 daysX356BXXS8CZF2/X356BOXM8CZF2/X356BXXS8CZF2
SKZKazakhstanJun 28, 2026+4 daysX356BXXS8CZF2/X356BOXM8CZF2/X356BXXS8CZF2
EGYEgyptJun 29, 2026+5 daysX356BXXS8CZF2/X356BOXM8CZF2/X356BXXS8CZF2
ILOIsraelJun 29, 2026+5 daysX356BXXS8CZF2/X356BOXM8CZF2/X356BXXS8CZF2
KSASaudi ArabiaJun 29, 2026+5 daysX356BXXS8CZF2/X356BOXM8CZF2/X356BXXS8CZF2
MIDMiddle EastJun 29, 2026+5 daysX356BXXS8CZF2/X356BOXM8CZF2/X356BXXS8CZF2
MWDMoroccoJun 29, 2026+5 daysX356BXXS8CZF2/X356BOXM8CZF2/X356BXXS8CZF2
PAKPakistanJun 29, 2026+5 daysX356BXXS8CZF2/X356BOXM8CZF2/X356BXXS8CZF2
XSGUnited Arab EmiratesJun 29, 2026+5 daysX356BXXS8CZF2/X356BOXM8CZF2/X356BXXS8CZF2
XFASouth AfricaJun 29, 2026+5 daysX356BXXS8CZF2/X356BOXM8CZF2/X356BXXS8CZF3

Download and release notes

samloader download -m SM-X356B -r EUX -v X356BXXS8CZF2/X356BOXM8CZF2/X356BXXS8CZF2

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 X356BXXS8CZF2.