Galaxy A06 5G SM-A066B firmware

The latest stable build is A066BXXU8DZJ7 (Android 17, feature update), first released on Nov 4, 2026 – 2 days ago. Samsung has published 24 stable builds for this model since Feb 18, 2025: 15 security and 9 feature updates, from Android 15 to Android 17. The current bootloader (binary) version is 8. A device on bit 8 only accepts firmware with bit 8 or higher – see downgrading and the bootloader bit.

Latest build: A066BXXU8DZJ7
Released: Nov 4, 2026
Android: Android 17
Bootloader bit: 8
Regions: 13
Stable builds: 24

Latest firmware by region (CSC)

Samsung builds firmware per region code (CSC). Pick the code that matches your device – it is shown under Settings › About phone › Software information › Service provider software version. Follow a code for its complete history.

CSC	Region	Latest build	Android	Released	Builds
`AFR`	Africa	`A066BXXS8CZI1`	Android 16	Sep 28, 2026	11
`DKR`	Senegal	`A066BXXS8CZI1`	Android 16	Sep 28, 2026	11
`ECT`	Nigeria	`A066BXXS8CZI1`	Android 16	Sep 28, 2026	13
`GLB`	Philippines (Globe)	`A066BXXS8CZI1`	Android 16	Sep 28, 2026	12
`INS`	India	`A066BXXU8DZJ7`	Android 17	Nov 4, 2026	15
`THL`	Thailand	`A066BXXS8CZI1`	Android 16	Sep 28, 2026	13
`XFA`	South Africa	`A066BXXS8CZI1`	Android 16	Sep 28, 2026	13
`XID`	Indonesia	`A066BXXS8CZI1`	Android 16	Sep 28, 2026	13
`XME`	Malaysia	`A066BXXS8CZI1`	Android 16	Sep 28, 2026	13
`XNZ`	New Zealand	`A066BXXS8CZI1`	Android 16	Sep 28, 2026	13
`XSP`	Singapore	`A066BXXS8CZI1`	Android 16	Sep 28, 2026	13
`XTC`	Philippines	`A066BXXS8CZI1`	Android 16	Sep 28, 2026	12
`XXV`	Vietnam	`A066BXXS8CZI1`	Android 16	Sep 28, 2026	13

Firmware history (24 builds)

Every stable build (PDA version) Samsung has published for the SM-A066B, newest first. “” is the earliest date the build appeared on Samsung's servers in any region. “” means Samsung no longer serves the file for that build.

Build (PDA)	Released	Android	Type	Bit	Regions	File
`A066BXXU8DZJ7`	Nov 4, 2026	Android 17	Feature	8	1	on server
`A066BXXS8CZI1`	Sep 23, 2026	Android 16	Security	8	13	on server
`A066BXXS7CZF2`	Jun 17, 2026	Android 16	Security	7	13	on server
`A066BXXU6CZE6`	Jun 1, 2026	Android 16	Feature	6	13	on server
`A066BXXS6BZE2`	May 17, 2026	Android 16	Security	6	12	on server
`A066BXXS6BZE1`	May 12, 2026	Android 16	Security	6	1	on server
`A066BXXS5BZB8`	Mar 8, 2026	Android 16	Security	5	12	on server
`A066BXXS5BZB6`	Mar 1, 2026	Android 16	Security	5	1	on server
`A066BXXS4BZA4`	Feb 5, 2026	Android 16	Security	4	12	on server
`A066BXXS4BZA1`	Jan 26, 2026	Android 16	Security	4	1	on server
`A066BXXS3BYJ7`	Nov 10, 2025	Android 16	Security	3	1	on server
`A066BXXU3BYJ4`	Nov 4, 2025	Android 16	Feature	3	12	on server
`A066BXXU3BYI8`	Oct 15, 2025	Android 16	Feature	3	1	on server
`A066BXXS3AYI3`	Sep 30, 2025	Android 15	Security	3	8	on server
`A066BXXS3AYI2`	Sep 11, 2025	Android 15	Security	3	5	on server
`A066BXXS3AYG2`	Jul 23, 2025	Android 15	Security	3	8	on server
`A066BXXS3AYG1`	Jul 16, 2025	Android 15	Security	3	5	on server
`A066BXXS2AYD3`	Apr 23, 2025	Android 15	Security	2	8	on server
`A066BXXS2AYD2`	Apr 10, 2025	Android 15	Security	2	5	on server
`A066BXXU1AYC4`	Apr 3, 2025	Android 15	Feature	1	8	on server
`A066BXXU1AYC3`	Mar 26, 2025	Android 15	Feature	1	5	on server
`A066BXXU1AYB6`	Mar 3, 2025	Android 15	Feature	1	8	on server
`A066BXXU1AYB3`	Feb 25, 2025	Android 15	Feature	1	3	on server
`A066BXXU1AYAF`	Feb 18, 2025	Android 15	Feature	1	9	on server

How to download SM-A066B firmware

We do not host firmware. Download it directly from Samsung's servers with a free open-source tool, for example samloader:

samloader download -m SM-A066B -r INS

Replace INS with your region code. Step-by-step instructions, including a graphical alternative: How to download Samsung firmware.

Changelog and security patch level

Samsung publishes the release notes for each update, including the security patch level, on its own site. They are listed per region – for example SM-A066B / INS release notes on doc.samsungmobile.com. Each region page here links to the notes for that code.