X906BXXSAEZB6 – Galaxy Tab S8 Ultra firmware

Build X906BXXSAEZB6 is a security update for the Galaxy Tab S8 Ultra (SM-X906B) on Android 16 (One UI 8). It first appeared on Samsung's servers on Mar 9, 2026 (method) and has reached 38 regions so far. It raises the bootloader bit from 9 to 10: once installed, the device no longer accepts firmware with bit 9 or lower, so a downgrade to X906BXXS9EZA3 is blocked. Samsung still serves this file.

Model
SM-X906B
Android
Android 16
Type
Security
Bootloader bit
10
First released
Mar 9, 2026
Regions
38

Rollout timeline by region

The date each region code (CSC) first received X906BXXSAEZB6, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
XIDIndonesiaMar 9, 2026day 0X906BXXSAEZB6/X906BOLEAEZB6/X906BXXSAEZB6
CAUCaucasusMar 9, 2026day 0X906BXXSAEZB6/X906BOXMAEZB6/X906BXXSAEZB6
EGYEgyptMar 9, 2026day 0X906BXXSAEZB6/X906BOXMAEZB6/X906BXXSAEZB6
EUXEurope (Multi-CSC)Mar 9, 2026day 0X906BXXSAEZB6/X906BOXMAEZB6/X906BXXSAEZB6
EUYEurope (Multi-CSC)Mar 9, 2026day 0X906BXXSAEZB6/X906BOXMAEZB6/X906BXXSAEZB6
KSASaudi ArabiaMar 9, 2026day 0X906BXXSAEZB6/X906BOXMAEZB6/X906BXXSAEZB6
MIDMiddle EastMar 9, 2026day 0X906BXXSAEZB6/X906BOXMAEZB6/X906BXXSAEZB6
MYMMyanmarMar 9, 2026day 0X906BXXSAEZB6/X906BOXMAEZB6/X906BXXSAEZB6
SEKUkraineMar 9, 2026day 0X906BXXSAEZB6/X906BOXMAEZB6/X906BXXSAEZB6
SERRussiaMar 9, 2026day 0X906BXXSAEZB6/X906BOXMAEZB6/X906BXXSAEZB6
SKZKazakhstanMar 9, 2026day 0X906BXXSAEZB6/X906BOXMAEZB6/X906BXXSAEZB6
THLThailandMar 9, 2026day 0X906BXXSAEZB6/X906BOXMAEZB6/X906BXXSAEZB6
TUNTunisiaMar 9, 2026day 0X906BXXSAEZB6/X906BOXMAEZB6/X906BXXSAEZB6
XMEMalaysiaMar 9, 2026day 0X906BXXSAEZB6/X906BOXMAEZB6/X906BXXSAEZB6
XSGUnited Arab EmiratesMar 9, 2026day 0X906BXXSAEZB6/X906BOXMAEZB6/X906BXXSAEZB6
XTCPhilippinesMar 9, 2026day 0X906BXXSAEZB6/X906BOXMAEZB6/X906BXXSAEZB6
XXVVietnamMar 9, 2026day 0X906BXXSAEZB6/X906BOXMAEZB6/X906BXXSAEZB6
ACRGhanaMar 9, 2026day 0X906BXXSAEZB6/X906BOXMAEZB6/X906BXXSAEZB6
AFRAfricaMar 9, 2026day 0X906BXXSAEZB6/X906BOXMAEZB6/X906BXXSAEZB6
DKRSenegalMar 9, 2026day 0X906BXXSAEZB6/X906BOXMAEZB6/X906BXXSAEZB6
ECTNigeriaMar 9, 2026day 0X906BXXSAEZB6/X906BOXMAEZB6/X906BXXSAEZB6
ILOIsraelMar 9, 2026day 0X906BXXSAEZB6/X906BOXMAEZB6/X906BXXSAEZB6
MM1Singapore (M1)Mar 9, 2026day 0X906BXXSAEZB6/X906BOXMAEZB6/X906BXXSAEZB6
MWDMoroccoMar 9, 2026day 0X906BXXSAEZB6/X906BOXMAEZB6/X906BXXSAEZB6
SINSingapore (Singtel)Mar 9, 2026day 0X906BXXSAEZB6/X906BOXMAEZB6/X906BXXSAEZB6
STHSingapore (StarHub)Mar 9, 2026day 0X906BXXSAEZB6/X906BOXMAEZB6/X906BXXSAEZB6
XFASouth AfricaMar 9, 2026day 0X906BXXSAEZB6/X906BOXMAEZB6/X906BXXSAEZB6
XFESouth AfricaMar 9, 2026day 0X906BXXSAEZB6/X906BOXMAEZB6/X906BXXSAEZB6
XFVSouth Africa (Vodacom)Mar 9, 2026day 0X906BXXSAEZB6/X906BOXMAEZB6/X906BXXSAEZB6
XNZNew ZealandMar 9, 2026day 0X906BXXSAEZB6/X906BOXMAEZB6/X906BXXSAEZB6
XSPSingaporeMar 9, 2026day 0X906BXXSAEZB6/X906BOXMAEZB6/X906BXXSAEZB6
BVOBoliviaMar 9, 2026day 0X906BXXSAEZB6/X906BOWOAEZB6/X906BXXSAEZB6
UPOUruguayMar 9, 2026day 0X906BXXSAEZB6/X906BOWOAEZB6/X906BXXSAEZB6
ZTOBrazilMar 9, 2026day 0X906BXXSAEZB6/X906BOWOAEZB6/X906BXXSAEZB6
TELAustralia (Telstra)Mar 10, 2026+1 dayX906BXXSAEZB6/X906BOXMAEZB6/X906BXXSAEZB6
XSAAustraliaMar 10, 2026+1 dayX906BXXSAEZB6/X906BOXMAEZB6/X906BXXSAEZB6
INUIndiaMar 10, 2026+1 dayX906BXXSAEZB6/X906BOXMAEZB6/X906BXXSAEZB6
TGYHong KongMar 12, 2026+3 daysX906BXXSAEZB6/X906BOXMAEZB6/X906BXXSAEZB6

Download and release notes

samloader download -m SM-X906B -r EUX -v X906BXXSAEZB6/X906BOXMAEZB6/X906BXXSAEZB6

Samsung's release notes and security patch level for this update: SM-X906B / EUX on doc.samsungmobile.com. What each part of the build number means: decode X906BXXSAEZB6.