X406BXXS7CZH6 – Galaxy Tab S10 Lite 5G firmware

Build X406BXXS7CZH6 is a security update for the Galaxy Tab S10 Lite 5G (SM-X406B) on Android 16 (One UI 8). It first appeared on Samsung's servers on Sep 3, 2026 (method) and has reached 42 regions so far. It raises the bootloader bit from 6 to 7: once installed, the device no longer accepts firmware with bit 6 or lower, so a downgrade to X406BXXS6CZG3 is blocked. Samsung still serves this file.

Model
SM-X406B
Android
Android 16
Type
Security
Bootloader bit
7
First released
Sep 3, 2026
Regions
42

Rollout timeline by region

The date each region code (CSC) first received X406BXXS7CZH6, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
EUXEurope (Multi-CSC)Sep 3, 2026day 0X406BXXS7CZH6/X406BOXM7CZH6/X406BXXS7CZH4
EUYEurope (Multi-CSC)Sep 3, 2026day 0X406BXXS7CZH6/X406BOXM7CZH6/X406BXXS7CZH4
AROArgentinaSep 3, 2026day 0X406BXXS7CZH6/X406BOWO7CZH6/X406BXXS7CZH4
BVOBoliviaSep 3, 2026day 0X406BXXS7CZH6/X406BOWO7CZH6/X406BXXS7CZH4
GTOGuatemalaSep 3, 2026day 0X406BXXS7CZH6/X406BOWO7CZH6/X406BXXS7CZH4
MXOMexicoSep 3, 2026day 0X406BXXS7CZH6/X406BOWO7CZH6/X406BXXS7CZH4
PEOPeruSep 3, 2026day 0X406BXXS7CZH6/X406BOWO7CZH6/X406BXXS7CZH4
ZTOBrazilSep 3, 2026day 0X406BXXS7CZH6/X406BOWO7CZH6/X406BXXS7CZH4
ACRGhanaSep 6, 2026+3 daysX406BXXS7CZH6/X406BOXM7CZH6/X406BXXS7CZH4
AFGAfghanistanSep 6, 2026+3 daysX406BXXS7CZH6/X406BOXM7CZH6/X406BXXS7CZH4
AFRAfricaSep 6, 2026+3 daysX406BXXS7CZH6/X406BOXM7CZH6/X406BXXS7CZH4
CAUCaucasusSep 6, 2026+3 daysX406BXXS7CZH6/X406BOXM7CZH6/X406BXXS7CZH4
DKRSenegalSep 6, 2026+3 daysX406BXXS7CZH6/X406BOXM7CZH6/X406BXXS7CZH4
ECTNigeriaSep 6, 2026+3 daysX406BXXS7CZH6/X406BOXM7CZH6/X406BXXS7CZH4
EGYEgyptSep 6, 2026+3 daysX406BXXS7CZH6/X406BOXM7CZH6/X406BXXS7CZH4
ILOIsraelSep 6, 2026+3 daysX406BXXS7CZH6/X406BOXM7CZH6/X406BXXS7CZH4
KSASaudi ArabiaSep 6, 2026+3 daysX406BXXS7CZH6/X406BOXM7CZH6/X406BXXS7CZH4
LYSLibyaSep 6, 2026+3 daysX406BXXS7CZH6/X406BOXM7CZH6/X406BXXS7CZH4
MIDMiddle EastSep 6, 2026+3 daysX406BXXS7CZH6/X406BOXM7CZH6/X406BXXS7CZH4
MM1Singapore (M1)Sep 6, 2026+3 daysX406BXXS7CZH6/X406BOXM7CZH6/X406BXXS7CZH4
MWDMoroccoSep 6, 2026+3 daysX406BXXS7CZH6/X406BOXM7CZH6/X406BXXS7CZH4
PAKPakistanSep 6, 2026+3 daysX406BXXS7CZH6/X406BOXM7CZH6/X406BXXS7CZH4
SINSingapore (Singtel)Sep 6, 2026+3 daysX406BXXS7CZH6/X406BOXM7CZH6/X406BXXS7CZH4
SKZKazakhstanSep 6, 2026+3 daysX406BXXS7CZH6/X406BOXM7CZH6/X406BXXS7CZH4
STHSingapore (StarHub)Sep 6, 2026+3 daysX406BXXS7CZH6/X406BOXM7CZH6/X406BXXS7CZH4
THLThailandSep 6, 2026+3 daysX406BXXS7CZH6/X406BOXM7CZH6/X406BXXS7CZH4
TUNTunisiaSep 6, 2026+3 daysX406BXXS7CZH6/X406BOXM7CZH6/X406BXXS7CZH4
TURTurkeySep 6, 2026+3 daysX406BXXS7CZH6/X406BOXM7CZH6/X406BXXS7CZH4
XFASouth AfricaSep 6, 2026+3 daysX406BXXS7CZH6/X406BOXM7CZH6/X406BXXS7CZH4
XFVSouth Africa (Vodacom)Sep 6, 2026+3 daysX406BXXS7CZH6/X406BOXM7CZH6/X406BXXS7CZH4
XIDIndonesiaSep 6, 2026+3 daysX406BXXS7CZH6/X406BOXM7CZH6/X406BXXS7CZH4
XMEMalaysiaSep 6, 2026+3 daysX406BXXS7CZH6/X406BOXM7CZH6/X406BXXS7CZH4
XNZNew ZealandSep 6, 2026+3 daysX406BXXS7CZH6/X406BOXM7CZH6/X406BXXS7CZH4
XSAAustraliaSep 6, 2026+3 daysX406BXXS7CZH6/X406BOXM7CZH6/X406BXXS7CZH4
XSGUnited Arab EmiratesSep 6, 2026+3 daysX406BXXS7CZH6/X406BOXM7CZH6/X406BXXS7CZH4
XSPSingaporeSep 6, 2026+3 daysX406BXXS7CZH6/X406BOXM7CZH6/X406BXXS7CZH4
XTCPhilippinesSep 6, 2026+3 daysX406BXXS7CZH6/X406BOXM7CZH6/X406BXXS7CZH4
XXVVietnamSep 6, 2026+3 daysX406BXXS7CZH6/X406BOXM7CZH6/X406BXXS7CZH4
INSIndiaSep 7, 2026+4 daysX406BXXS7CZH6/X406BOXM7CZH6/X406BXXS7CZH4
TCEMexico (Telcel)Sep 10, 2026+7 daysX406BXXS7CZH6/X406BOWO7CZH6/X406BXXS7CZH4
BRITaiwanSep 14, 2026+11 daysX406BXXS7CZH6/X406BOXM7CZH6/X406BXXS7CZH4
TGYHong KongSep 14, 2026+11 daysX406BXXS7CZH6/X406BOXM7CZH6/X406BXXS7CZH4

Download and release notes

samloader download -m SM-X406B -r EUX -v X406BXXS7CZH6/X406BOXM7CZH6/X406BXXS7CZH4

Samsung's release notes and security patch level for this update: SM-X406B / EUX on doc.samsungmobile.com. What each part of the build number means: decode X406BXXS7CZH6.