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`A266BXXUCDZJ6` – Galaxy A26 5G firmware

Build A266BXXUCDZJ6 is a feature update for the Galaxy A26 5G (SM-A266B) on Android 17 (One UI 9). It first appeared on Samsung's servers on Oct 21, 2026 (method) and has reached 35 regions so far. It keeps bootloader bit 12, so downgrading to the previous build A266BXXSCCZH5 is still possible. Samsung still serves this file.

Model: SM-A266B
Android: Android 17
Type: Feature
Bootloader bit: 12
First released: Oct 21, 2026
Regions: 35

Rollout timeline by region

The date each region code (CSC) first received A266BXXUCDZJ6, counted from the first release.

CSC	Region	Released	Rollout	Version (PDA/CSC/MODEM)
`GLB`	Philippines (Globe)	Oct 21, 2026	day 0	`A266BXXUCDZJ6/A266BOLMCDZJ6/A266BXXUCDZJ6`
`THL`	Thailand	Oct 21, 2026	day 0	`A266BXXUCDZJ6/A266BOLMCDZJ6/A266BXXUCDZJ6`
`XME`	Malaysia	Oct 21, 2026	day 0	`A266BXXUCDZJ6/A266BOLMCDZJ6/A266BXXUCDZJ6`
`XTC`	Philippines	Oct 21, 2026	day 0	`A266BXXUCDZJ6/A266BOLMCDZJ6/A266BXXUCDZJ6`
`XXV`	Vietnam	Oct 21, 2026	day 0	`A266BXXUCDZJ6/A266BOLMCDZJ6/A266BXXUCDZJ6`
`BRI`	Taiwan	Oct 26, 2026	+5 days	`A266BXXUCDZJ6/A266BOLMCDZJ6/A266BXXUCDZJ6`
`XID`	Indonesia	Oct 26, 2026	+5 days	`A266BXXUCDZJ6/A266BOLMCDZJ6/A266BXXUCDZJ6`
`XSA`	Australia	Oct 26, 2026	+5 days	`A266BXXUCDZJ6/A266BOLMCDZJ6/A266BXXUCDZJ6`
`ACR`	Ghana	Oct 26, 2026	+5 days	`A266BXXUCDZJ6/A266BOJMCDZJ6/A266BXXUCDZJ6`
`AFG`	Afghanistan	Oct 26, 2026	+5 days	`A266BXXUCDZJ6/A266BOJMCDZJ6/A266BXXUCDZJ6`
`AFR`	Africa	Oct 26, 2026	+5 days	`A266BXXUCDZJ6/A266BOJMCDZJ6/A266BXXUCDZJ6`
`DKR`	Senegal	Oct 26, 2026	+5 days	`A266BXXUCDZJ6/A266BOJMCDZJ6/A266BXXUCDZJ6`
`ECT`	Nigeria	Oct 26, 2026	+5 days	`A266BXXUCDZJ6/A266BOJMCDZJ6/A266BXXUCDZJ6`
`EGY`	Egypt	Oct 26, 2026	+5 days	`A266BXXUCDZJ6/A266BOJMCDZJ6/A266BXXUCDZJ6`
`KSA`	Saudi Arabia	Oct 26, 2026	+5 days	`A266BXXUCDZJ6/A266BOJMCDZJ6/A266BXXUCDZJ6`
`LYS`	Libya	Oct 26, 2026	+5 days	`A266BXXUCDZJ6/A266BOJMCDZJ6/A266BXXUCDZJ6`
`MID`	Middle East	Oct 26, 2026	+5 days	`A266BXXUCDZJ6/A266BOJMCDZJ6/A266BXXUCDZJ6`
`MWD`	Morocco	Oct 26, 2026	+5 days	`A266BXXUCDZJ6/A266BOJMCDZJ6/A266BXXUCDZJ6`
`PAK`	Pakistan	Oct 26, 2026	+5 days	`A266BXXUCDZJ6/A266BOJMCDZJ6/A266BXXUCDZJ6`
`PKD`	Pakistan	Oct 26, 2026	+5 days	`A266BXXUCDZJ6/A266BOJMCDZJ6/A266BXXUCDZJ6`
`TUN`	Tunisia	Oct 26, 2026	+5 days	`A266BXXUCDZJ6/A266BOJMCDZJ6/A266BXXUCDZJ6`
`XSG`	United Arab Emirates	Oct 26, 2026	+5 days	`A266BXXUCDZJ6/A266BOJMCDZJ6/A266BXXUCDZJ6`
`CAU`	Caucasus	Oct 26, 2026	+5 days	`A266BXXUCDZJ6/A266BOXMCDZJ6/A266BXXUCDZJ6`
`SKZ`	Kazakhstan	Oct 26, 2026	+5 days	`A266BXXUCDZJ6/A266BOXMCDZJ6/A266BXXUCDZJ6`
`BKD`	Bangladesh	Oct 26, 2026	+5 days	`A266BXXUCDZJ6/A266BODMCDZJ6/A266BXXUCDZJ6`
`INS`	India	Oct 26, 2026	+5 days	`A266BXXUCDZJ6/A266BODMCDZJ6/A266BXXUCDZJ6`
`NPB`	Nepal	Oct 26, 2026	+5 days	`A266BXXUCDZJ6/A266BODMCDZJ6/A266BXXUCDZJ6`
`SLK`	Sri Lanka	Oct 26, 2026	+5 days	`A266BXXUCDZJ6/A266BODMCDZJ6/A266BXXUCDZJ6`
`ILO`	Israel	Nov 2, 2026	+12 days	`A266BXXUCDZJ6/A266BOJMCDZJ6/A266BXXUCDZJ6`
`XFA`	South Africa	Nov 2, 2026	+12 days	`A266BXXUCDZJ6/A266BOJMCDZJ6/A266BXXUCDZJ6`
`XFV`	South Africa (Vodacom)	Nov 2, 2026	+12 days	`A266BXXUCDZJ6/A266BOJMCDZJ6/A266BXXUCDZJ6`
`MM1`	Singapore (M1)	Nov 2, 2026	+12 days	`A266BXXUCDZJ6/A266BOLMCDZJ6/A266BXXUCDZJ6`
`SIN`	Singapore (Singtel)	Nov 2, 2026	+12 days	`A266BXXUCDZJ6/A266BOLMCDZJ6/A266BXXUCDZJ6`
`STH`	Singapore (StarHub)	Nov 2, 2026	+12 days	`A266BXXUCDZJ6/A266BOLMCDZJ6/A266BXXUCDZJ6`
`XSP`	Singapore	Nov 2, 2026	+12 days	`A266BXXUCDZJ6/A266BOLMCDZJ6/A266BXXUCDZJ6`

Download and release notes

samloader download -m SM-A266B -r INS -v A266BXXUCDZJ6/A266BODMCDZJ6/A266BXXUCDZJ6

Samsung's release notes and security patch level for this update: SM-A266B / INS on doc.samsungmobile.com. What each part of the build number means: decode A266BXXUCDZJ6.