X526BXXS8CZF2 – Galaxy Tab S10 FE 5G firmware

Build X526BXXS8CZF2 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 Jun 29, 2026 (method) and has reached 44 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 X526BXXU7CZE3 is blocked. Samsung still serves this file.

Model
SM-X526B
Android
Android 16
Type
Security
Bootloader bit
8
First released
Jun 29, 2026
Regions
44

Rollout timeline by region

The date each region code (CSC) first received X526BXXS8CZF2, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
ACRGhanaJun 29, 2026day 0X526BXXS8CZF2/X526BOJM8CZF2/X526BXXS8CZF2
AFGAfghanistanJun 29, 2026day 0X526BXXS8CZF2/X526BOJM8CZF2/X526BXXS8CZF2
AFRAfricaJun 29, 2026day 0X526BXXS8CZF2/X526BOJM8CZF2/X526BXXS8CZF2
DKRSenegalJun 29, 2026day 0X526BXXS8CZF2/X526BOJM8CZF2/X526BXXS8CZF2
ECTNigeriaJun 29, 2026day 0X526BXXS8CZF2/X526BOJM8CZF2/X526BXXS8CZF2
EUYEurope (Multi-CSC)Jun 29, 2026day 0X526BXXS8CZF2/X526BOXM8CZF2/X526BXXS8CZF2
ILOIsraelJun 29, 2026day 0X526BXXS8CZF2/X526BOJM8CZF2/X526BXXS8CZF2
KSASaudi ArabiaJun 29, 2026day 0X526BXXS8CZF2/X526BOJM8CZF2/X526BXXS8CZF2
LYSLibyaJun 29, 2026day 0X526BXXS8CZF2/X526BOJM8CZF2/X526BXXS8CZF2
MIDMiddle EastJun 29, 2026day 0X526BXXS8CZF2/X526BOJM8CZF2/X526BXXS8CZF2
MWDMoroccoJun 29, 2026day 0X526BXXS8CZF2/X526BOJM8CZF2/X526BXXS8CZF2
PAKPakistanJun 29, 2026day 0X526BXXS8CZF2/X526BOJM8CZF2/X526BXXS8CZF2
THLThailandJun 29, 2026day 0X526BXXS8CZF2/X526BOLM8CZF2/X526BXXS8CZF2
TUNTunisiaJun 29, 2026day 0X526BXXS8CZF2/X526BOJM8CZF2/X526BXXS8CZF2
XFASouth AfricaJun 29, 2026day 0X526BXXS8CZF2/X526BOJM8CZF2/X526BXXS8CZF2
XFVSouth Africa (Vodacom)Jun 29, 2026day 0X526BXXS8CZF2/X526BOJM8CZF2/X526BXXS8CZF2
XIDIndonesiaJun 29, 2026day 0X526BXXS8CZF2/X526BOLM8CZF2/X526BXXS8CZF2
XNZNew ZealandJun 29, 2026day 0X526BXXS8CZF2/X526BOLM8CZF2/X526BXXS8CZF2
XSAAustraliaJun 29, 2026day 0X526BXXS8CZF2/X526BOLM8CZF2/X526BXXS8CZF2
XTCPhilippinesJun 29, 2026day 0X526BXXS8CZF2/X526BOLM8CZF2/X526BXXS8CZF2
XXVVietnamJun 29, 2026day 0X526BXXS8CZF2/X526BOLM8CZF2/X526BXXS8CZF2
EGYEgyptJun 29, 2026day 0X526BXXS8CZF2/X526BOJM8CZF2/X526BXXS8CZF2
EUXEurope (Multi-CSC)Jun 29, 2026day 0X526BXXS8CZF2/X526BOXM8CZF2/X526BXXS8CZF2
SKZKazakhstanJun 29, 2026day 0X526BXXS8CZF2/X526BOXM8CZF2/X526BXXS8CZF2
TURTurkeyJun 29, 2026day 0X526BXXS8CZF2/X526BOXM8CZF2/X526BXXS8CZF2
XSGUnited Arab EmiratesJun 29, 2026day 0X526BXXS8CZF2/X526BOJM8CZF2/X526BXXS8CZF2
CAUCaucasusJun 29, 2026day 0X526BXXS8CZF2/X526BOXM8CZF2/X526BXXS8CZF2
XMEMalaysiaJun 29, 2026day 0X526BXXS8CZF2/X526BOLM8CZF2/X526BXXS8CZF2
MM1Singapore (M1)Jun 30, 2026+1 dayX526BXXS8CZF2/X526BOLM8CZF2/X526BXXS8CZF2
SINSingapore (Singtel)Jun 30, 2026+1 dayX526BXXS8CZF2/X526BOLM8CZF2/X526BXXS8CZF2
STHSingapore (StarHub)Jun 30, 2026+1 dayX526BXXS8CZF2/X526BOLM8CZF2/X526BXXS8CZF2
XSPSingaporeJun 30, 2026+1 dayX526BXXS8CZF2/X526BOLM8CZF2/X526BXXS8CZF2
INSIndiaJul 1, 2026+2 daysX526BXXS8CZF2/X526BOXM8CZF2/X526BXXS8CZF2
SLKSri LankaJul 1, 2026+2 daysX526BXXS8CZF2/X526BOXM8CZF2/X526BXXS8CZF2
GTOGuatemalaJul 1, 2026+2 daysX526BXXS8CZF2/X526BOXM8CZF2/X526BXXS8CZF2
MXOMexicoJul 1, 2026+2 daysX526BXXS8CZF2/X526BOXM8CZF2/X526BXXS8CZF2
PEOPeruJul 1, 2026+2 daysX526BXXS8CZF2/X526BOXM8CZF2/X526BXXS8CZF2
TCEMexico (Telcel)Jul 1, 2026+2 daysX526BXXS8CZF2/X526BOWA8CZF2/X526BXXS8CZF2
TPAPanamaJul 1, 2026+2 daysX526BXXS8CZF2/X526BOXM8CZF2/X526BXXS8CZF2
UYOUruguayJul 1, 2026+2 daysX526BXXS8CZF2/X526BOXM8CZF2/X526BXXS8CZF2
ZTOBrazilJul 1, 2026+2 daysX526BXXS8CZF2/X526BOXM8CZF2/X526BXXS8CZF2
BRITaiwanJul 5, 2026+6 daysX526BXXS8CZF2/X526BOXM8CZF2/X526BXXS8CZF2
TGYHong KongJul 5, 2026+6 daysX526BXXS8CZF2/X526BOXM8CZF2/X526BXXS8CZF2
UPOUruguayAug 4, 2026+36 daysX526BXXS8CZF2/X526BOXM8CZF2/X526BXXS8CZF2

Download and release notes

samloader download -m SM-X526B -r EUX -v X526BXXS8CZF2/X526BOXM8CZF2/X526BXXS8CZF2

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 X526BXXS8CZF2.