X526BXXS9CZG3 – Galaxy Tab S10 FE 5G firmware

Build X526BXXS9CZG3 is a security update for the Galaxy Tab S10 FE 5G (SM-X526B) on Android 16 (One UI 8). It first appeared on Samsung's servers on Jul 29, 2026 (method) and has reached 44 regions so far. It raises the bootloader bit from 8 to 9: once installed, the device no longer accepts firmware with bit 8 or lower, so a downgrade to X526BXXS8CZF2 is blocked. Samsung still serves this file.

Model
SM-X526B
Android
Android 16
Type
Security
Bootloader bit
9
First released
Jul 29, 2026
Regions
44

Rollout timeline by region

The date each region code (CSC) first received X526BXXS9CZG3, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
CAUCaucasusJul 29, 2026day 0X526BXXS9CZG3/X526BOXM9CZG3/X526BXXS9CZG3
EUXEurope (Multi-CSC)Jul 29, 2026day 0X526BXXS9CZG3/X526BOXM9CZG3/X526BXXS9CZG3
EUYEurope (Multi-CSC)Jul 29, 2026day 0X526BXXS9CZG3/X526BOXM9CZG3/X526BXXS9CZG3
MM1Singapore (M1)Jul 29, 2026day 0X526BXXS9CZG3/X526BOLM9CZG3/X526BXXS9CZG3
SINSingapore (Singtel)Jul 29, 2026day 0X526BXXS9CZG3/X526BOLM9CZG3/X526BXXS9CZG3
SKZKazakhstanJul 29, 2026day 0X526BXXS9CZG3/X526BOXM9CZG3/X526BXXS9CZG3
STHSingapore (StarHub)Jul 29, 2026day 0X526BXXS9CZG3/X526BOLM9CZG3/X526BXXS9CZG3
THLThailandJul 29, 2026day 0X526BXXS9CZG3/X526BOLM9CZG3/X526BXXS9CZG3
TURTurkeyJul 29, 2026day 0X526BXXS9CZG3/X526BOXM9CZG3/X526BXXS9CZG3
XIDIndonesiaJul 29, 2026day 0X526BXXS9CZG3/X526BOLM9CZG3/X526BXXS9CZG3
XMEMalaysiaJul 29, 2026day 0X526BXXS9CZG3/X526BOLM9CZG3/X526BXXS9CZG3
XNZNew ZealandJul 29, 2026day 0X526BXXS9CZG3/X526BOLM9CZG3/X526BXXS9CZG3
XSAAustraliaJul 29, 2026day 0X526BXXS9CZG3/X526BOLM9CZG3/X526BXXS9CZG3
XSPSingaporeJul 29, 2026day 0X526BXXS9CZG3/X526BOLM9CZG3/X526BXXS9CZG3
XTCPhilippinesJul 29, 2026day 0X526BXXS9CZG3/X526BOLM9CZG3/X526BXXS9CZG3
XXVVietnamJul 29, 2026day 0X526BXXS9CZG3/X526BOLM9CZG3/X526BXXS9CZG3
GTOGuatemalaJul 30, 2026+1 dayX526BXXS9CZG3/X526BOXM9CZG3/X526BXXS9CZG3
MXOMexicoJul 30, 2026+1 dayX526BXXS9CZG3/X526BOXM9CZG3/X526BXXS9CZG3
PEOPeruJul 30, 2026+1 dayX526BXXS9CZG3/X526BOXM9CZG3/X526BXXS9CZG3
TCEMexico (Telcel)Jul 30, 2026+1 dayX526BXXS9CZG3/X526BOWA9CZG3/X526BXXS9CZG3
TPAPanamaJul 30, 2026+1 dayX526BXXS9CZG3/X526BOXM9CZG3/X526BXXS9CZG3
UYOUruguayJul 30, 2026+1 dayX526BXXS9CZG3/X526BOXM9CZG3/X526BXXS9CZG3
ZTOBrazilJul 30, 2026+1 dayX526BXXS9CZG3/X526BOXM9CZG3/X526BXXS9CZG3
INSIndiaJul 30, 2026+1 dayX526BXXS9CZG3/X526BOXM9CZG3/X526BXXS9CZG3
SLKSri LankaJul 30, 2026+1 dayX526BXXS9CZG3/X526BOXM9CZG3/X526BXXS9CZG3
ACRGhanaAug 2, 2026+4 daysX526BXXS9CZG3/X526BOJM9CZG3/X526BXXS9CZG3
AFGAfghanistanAug 2, 2026+4 daysX526BXXS9CZG3/X526BOJM9CZG3/X526BXXS9CZG3
AFRAfricaAug 2, 2026+4 daysX526BXXS9CZG3/X526BOJM9CZG3/X526BXXS9CZG3
DKRSenegalAug 2, 2026+4 daysX526BXXS9CZG3/X526BOJM9CZG3/X526BXXS9CZG3
ECTNigeriaAug 2, 2026+4 daysX526BXXS9CZG3/X526BOJM9CZG3/X526BXXS9CZG3
EGYEgyptAug 2, 2026+4 daysX526BXXS9CZG3/X526BOJM9CZG3/X526BXXS9CZG3
ILOIsraelAug 2, 2026+4 daysX526BXXS9CZG3/X526BOJM9CZG3/X526BXXS9CZG3
KSASaudi ArabiaAug 2, 2026+4 daysX526BXXS9CZG3/X526BOJM9CZG3/X526BXXS9CZG3
LYSLibyaAug 2, 2026+4 daysX526BXXS9CZG3/X526BOJM9CZG3/X526BXXS9CZG3
MIDMiddle EastAug 2, 2026+4 daysX526BXXS9CZG3/X526BOJM9CZG3/X526BXXS9CZG3
MWDMoroccoAug 2, 2026+4 daysX526BXXS9CZG3/X526BOJM9CZG3/X526BXXS9CZG3
PAKPakistanAug 2, 2026+4 daysX526BXXS9CZG3/X526BOJM9CZG3/X526BXXS9CZG3
TUNTunisiaAug 2, 2026+4 daysX526BXXS9CZG3/X526BOJM9CZG3/X526BXXS9CZG3
XFASouth AfricaAug 2, 2026+4 daysX526BXXS9CZG3/X526BOJM9CZG3/X526BXXS9CZG3
XFVSouth Africa (Vodacom)Aug 2, 2026+4 daysX526BXXS9CZG3/X526BOJM9CZG3/X526BXXS9CZG3
XSGUnited Arab EmiratesAug 2, 2026+4 daysX526BXXS9CZG3/X526BOJM9CZG3/X526BXXS9CZG3
BRITaiwanAug 11, 2026+13 daysX526BXXS9CZG3/X526BOXM9CZG3/X526BXXS9CZG3
TGYHong KongAug 11, 2026+13 daysX526BXXS9CZG3/X526BOXM9CZG3/X526BXXS9CZG3
UPOUruguayAug 12, 2026+14 daysX526BXXS9CZG3/X526BOXM9CZG3/X526BXXS9CZG3

Download and release notes

samloader download -m SM-X526B -r EUX -v X526BXXS9CZG3/X526BOXM9CZG3/X526BXXS9CZG3

Samsung's release notes and security patch level for this update: SM-X526B / EUX on doc.samsungmobile.com. What each part of the build number means: decode X526BXXS9CZG3.