X936BXXS6BZF4 – Galaxy Tab S11 Ultra 5G firmware

Build X936BXXS6BZF4 is a security update for the Galaxy Tab S11 Ultra 5G (SM-X936B) on Android 16 (One UI 8). It first appeared on Samsung's servers on Jun 29, 2026 (method) and has reached 37 regions so far. It raises the bootloader bit from 5 to 6: once installed, the device no longer accepts firmware with bit 5 or lower, so a downgrade to X936BXXU5BZE5 is blocked. Samsung still serves this file.

Model
SM-X936B
Android
Android 16
Type
Security
Bootloader bit
6
First released
Jun 29, 2026
Regions
37

Rollout timeline by region

The date each region code (CSC) first received X936BXXS6BZF4, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
ACRGhanaJun 29, 2026day 0X936BXXS6BZF4/X936BOXM6BZF4/X936BXXS6BZF4
AFGAfghanistanJun 29, 2026day 0X936BXXS6BZF4/X936BOXM6BZF4/X936BXXS6BZF4
CAUCaucasusJun 29, 2026day 0X936BXXS6BZF4/X936BOXM6BZF4/X936BXXS6BZF4
DKRSenegalJun 29, 2026day 0X936BXXS6BZF4/X936BOXM6BZF4/X936BXXS6BZF4
ECTNigeriaJun 29, 2026day 0X936BXXS6BZF4/X936BOXM6BZF4/X936BXXS6BZF4
EGYEgyptJun 29, 2026day 0X936BXXS6BZF4/X936BOXM6BZF4/X936BXXS6BZF4
KSASaudi ArabiaJun 29, 2026day 0X936BXXS6BZF4/X936BOXM6BZF4/X936BXXS6BZF4
LYSLibyaJun 29, 2026day 0X936BXXS6BZF4/X936BOXM6BZF4/X936BXXS6BZF4
MIDMiddle EastJun 29, 2026day 0X936BXXS6BZF4/X936BOXM6BZF4/X936BXXS6BZF4
MWDMoroccoJun 29, 2026day 0X936BXXS6BZF4/X936BOXM6BZF4/X936BXXS6BZF4
PAKPakistanJun 29, 2026day 0X936BXXS6BZF4/X936BOXM6BZF4/X936BXXS6BZF4
SERRussiaJun 29, 2026day 0X936BXXS6BZF4/X936BOXM6BZF4/X936BXXS6BZF4
SKZKazakhstanJun 29, 2026day 0X936BXXS6BZF4/X936BOXM6BZF4/X936BXXS6BZF4
TUNTunisiaJun 29, 2026day 0X936BXXS6BZF4/X936BOXM6BZF4/X936BXXS6BZF4
XFVSouth Africa (Vodacom)Jun 29, 2026day 0X936BXXS6BZF4/X936BOXM6BZF4/X936BXXS6BZF4
XSGUnited Arab EmiratesJun 29, 2026day 0X936BXXS6BZF4/X936BOXM6BZF4/X936BXXS6BZF4
AFRAfricaJun 29, 2026day 0X936BXXS6BZF4/X936BOXM6BZF4/X936BXXS6BZF4
XFASouth AfricaJun 29, 2026day 0X936BXXS6BZF4/X936BOXM6BZF4/X936BXXS6BZF4
XIDIndonesiaJun 29, 2026day 0X936BXXS6BZF4/X936BOXM6BZF4/X936BXXS6BZF4
EUXEurope (Multi-CSC)Jun 30, 2026+1 dayX936BXXS6BZF4/X936BOXM6BZF4/X936BXXS6BZF4
EUYEurope (Multi-CSC)Jun 30, 2026+1 dayX936BXXS6BZF4/X936BOXM6BZF4/X936BXXS6BZF4
TURTurkeyJun 30, 2026+1 dayX936BXXS6BZF4/X936BOXM6BZF4/X936BXXS6BZF4
INSIndiaJun 30, 2026+1 dayX936BXXS6BZF4/X936BOXM6BZF4/X936BXXS6BZF4
SLKSri LankaJun 30, 2026+1 dayX936BXXS6BZF4/X936BOXM6BZF4/X936BXXS6BZF4
XSAAustraliaJun 30, 2026+1 dayX936BXXS6BZF4/X936BOXM6BZF4/X936BXXS6BZF4
MM1Singapore (M1)Jun 30, 2026+1 dayX936BXXS6BZF4/X936BOXM6BZF4/X936BXXS6BZF4
SINSingapore (Singtel)Jun 30, 2026+1 dayX936BXXS6BZF4/X936BOXM6BZF4/X936BXXS6BZF4
STHSingapore (StarHub)Jun 30, 2026+1 dayX936BXXS6BZF4/X936BOXM6BZF4/X936BXXS6BZF4
THLThailandJun 30, 2026+1 dayX936BXXS6BZF4/X936BOXM6BZF4/X936BXXS6BZF4
XMEMalaysiaJun 30, 2026+1 dayX936BXXS6BZF4/X936BOXM6BZF4/X936BXXS6BZF4
XNZNew ZealandJun 30, 2026+1 dayX936BXXS6BZF4/X936BOXM6BZF4/X936BXXS6BZF4
XSPSingaporeJun 30, 2026+1 dayX936BXXS6BZF4/X936BOXM6BZF4/X936BXXS6BZF4
XTCPhilippinesJun 30, 2026+1 dayX936BXXS6BZF4/X936BOXM6BZF4/X936BXXS6BZF4
XXVVietnamJun 30, 2026+1 dayX936BXXS6BZF4/X936BOXM6BZF4/X936BXXS6BZF4
ILOIsraelJun 30, 2026+1 dayX936BXXS6BZF4/X936BOXM6BZF4/X936BXXS6BZF4
BRITaiwanJul 6, 2026+7 daysX936BXXS6BZF4/X936BOXM6BZF4/X936BXXS6BZF4
TGYHong KongJul 6, 2026+7 daysX936BXXS6BZF4/X936BOXM6BZF4/X936BXXS6BZF4

Download and release notes

samloader download -m SM-X936B -r EUX -v X936BXXS6BZF4/X936BOXM6BZF4/X936BXXS6BZF4

Samsung's release notes and security patch level for this update: SM-X936B / EUX on doc.samsungmobile.com. What each part of the build number means: decode X936BXXS6BZF4.