Samsung Galaxy A26 5G (SM-A266B) Firmware Overview
What is the latest SM-A266B firmware?
A266BXXUCDZJ6, released October 19, 2026 with Android 17. It is a feature update on bootloader binary 12. The archive holds 153 official builds across 57 regions (CSC).
Is the Samsung Galaxy A26 5G still getting updates?
Yes. The newest build is from October 2026, and 5 of 57 regions already have a build from that month; the rest usually follow within a few weeks.
Which Android versions did it get?
The SM-A266B builds in the archive run Android 16 to 17. The earliest build we have for each version:
- Android 17: A266BXXUCDZJ6 (Oct 2026), 5 builds in total
- Android 16: A266BXXS7BZA3 (Jan 2026), 148 builds in total
Can I downgrade the SM-A266B firmware?
Only to builds with the same bootloader binary (the Bit column) or higher. In the archive the binary of this model rose from 7 to 12:
- Binary 12 — since Aug 2026
- Binary 11 — since Jul 2026
- Binary 10 — since Jun 2026
- Binary 9 — since May 2026
- Binary 8 — since Feb 2026
- Binary 7 — since Jan 2026
A phone already on binary 12 rejects builds with a lower binary in Odin ("SW REV CHECK FAIL"), so it can go back to an earlier Android version only if that version has a binary 12 build. How to read a build number.
All SM-A266B firmware builds
| Build / PDA | Bit | Region (CSC) | Android | Date | Download Link |
|---|---|---|---|---|---|
|
A266BXXUCDZJ6
Feature update
|
12 | XTC | 17 |
2026-10-19 | Download |
|
A266BXXUCDZJ6
Feature update
|
12 | GLB | 17 |
2026-10-19 | Download |
|
A266BXXUCDZJ6
Feature update
|
12 | XME | 17 |
2026-10-19 | Download |
|
A266BXXUCDZJ6
Feature update
|
12 | THL | 17 |
2026-10-19 | Download |
|
A266BXXUCDZJ6
Feature update
|
12 | XXV | 17 |
2026-10-19 | Download |
|
A266BXXSCCZH4
Security update
|
12 | TKD | 16 |
2026-09-21 | Download |
|
A266BXXSBCZH1
Security update
|
11 | TKD | 16 |
2026-09-15 | Download |
|
A266BXXSCCZH5
Security update
|
12 | INS | 16 |
2026-08-25 | Download |
|
A266BXXSCCZH5
Security update
|
12 | NPB | 16 |
2026-08-25 | Download |
|
A266BXXSCCZH5
Security update
|
12 | BKD | 16 |
2026-08-25 | Download |
|
A266BXXSCCZH5
Security update
|
12 | SLK | 16 |
2026-08-25 | Download |
|
A266BXXSCCZH3
Security update
|
12 | XXV | 16 |
2026-08-18 | Download |
|
A266BXXSCCZH3
Security update
|
12 | XSA | 16 |
2026-08-18 | Download |
|
A266BXXSCCZH3
Security update
|
12 | XME | 16 |
2026-08-18 | Download |
|
A266BXXSCCZH3
Security update
|
12 | THL | 16 |
2026-08-18 | Download |
|
A266BXXSCCZH3
Security update
|
12 | VFJ | 16 |
2026-08-18 | Download |
|
A266BXXSCCZH3
Security update
|
12 | LYS | 16 |
2026-08-18 | Download |
|
A266BXXSCCZH3
Security update
|
12 | EGY | 16 |
2026-08-18 | Download |
|
A266BXXSCCZH3
Security update
|
12 | PAK | 16 |
2026-08-18 | Download |
|
A266BXXSCCZH3
Security update
|
12 | FWD | 16 |
2026-08-18 | Download |
|
A266BXXSCCZH3
Security update
|
12 | KSA | 16 |
2026-08-18 | Download |
|
A266BXXSCCZH3
Security update
|
12 | XSG | 16 |
2026-08-18 | Download |
|
A266BXXSCCZH3
Security update
|
12 | TUN | 16 |
2026-08-18 | Download |
|
A266BXXSCCZH3
Security update
|
12 | ECT | 16 |
2026-08-18 | Download |
|
A266BXXSCCZH3
Security update
|
12 | XNZ | 16 |
2026-08-18 | Download |
|
A266BXXSCCZH3
Security update
|
12 | XSP | 16 |
2026-08-18 | Download |
|
A266BXXSCCZH3
Security update
|
12 | PRT | 16 |
2026-08-15 | Download |
|
A266BXXSCCZH3
Security update
|
12 | MET | 16 |
2026-08-15 | Download |
|
A266BXXSCCZH3
Security update
|
12 | SIM | 16 |
2026-08-15 | Download |
|
A266BXXSCCZH3
Security update
|
12 | SFR | 16 |
2026-08-15 | Download |
|
A266BXXSCCZH3
Security update
|
12 | MEO | 16 |
2026-08-15 | Download |
|
A266BXXSCCZH3
Security update
|
12 | SWC | 16 |
2026-08-15 | Download |
|
A266BXXSCCZH3
Security update
|
12 | EUX | 16 |
2026-08-15 | Download |
|
A266BXXSCCZH3
Security update
|
12 | MOT | 16 |
2026-08-15 | Download |
|
A266BXXSCCZH3
Security update
|
12 | TOP | 16 |
2026-08-15 | Download |
|
A266BXXSCCZH3
Security update
|
12 | BOG | 16 |
2026-08-15 | Download |
|
A266BXXSCCZH3
Security update
|
12 | MSR | 16 |
2026-08-15 | Download |
|
A266BXXSCCZH3
Security update
|
12 | EUY | 16 |
2026-08-15 | Download |
|
A266BXXSCCZH3
Security update
|
12 | PLS | 16 |
2026-08-15 | Download |
|
A266BXXSCCZH3
Security update
|
12 | TUR | 16 |
2026-08-15 | Download |
|
A266BXXSCCZH3
Security update
|
12 | VIP | 16 |
2026-08-15 | Download |
|
A266BXXSBCZG4
Security update
|
11 | SLK | 16 |
2026-07-16 | Download |
|
A266BXXSBCZG4
Security update
|
11 | BKD | 16 |
2026-07-16 | Download |
|
A266BXXSBCZG4
Security update
|
11 | INS | 16 |
2026-07-16 | Download |
|
A266BXXSBCZG4
Security update
|
11 | NPB | 16 |
2026-07-16 | Download |
|
A266BXXSBCZG2
Security update
|
11 | XME | 16 |
2026-07-13 | Download |
|
A266BXXSBCZG2
Security update
|
11 | XXV | 16 |
2026-07-13 | Download |
|
A266BXXSBCZG2
Security update
|
11 | XSG | 16 |
2026-07-13 | Download |
|
A266BXXSBCZG2
Security update
|
11 | MID | 16 |
2026-07-13 | Download |
|
A266BXXSBCZG2
Security update
|
11 | XFV | 16 |
2026-07-13 | Download |
|
A266BXXSBCZG2
Security update
|
11 | DKR | 16 |
2026-07-13 | Download |
|
A266BXXSBCZG2
Security update
|
11 | AFG | 16 |
2026-07-13 | Download |
|
A266BXXSBCZG2
Security update
|
11 | XFA | 16 |
2026-07-13 | Download |
|
A266BXXSBCZG2
Security update
|
11 | LYS | 16 |
2026-07-13 | Download |
|
A266BXXSBCZG2
Security update
|
11 | MM1 | 16 |
2026-07-13 | Download |
|
A266BXXSBCZG2
Security update
|
11 | SIN | 16 |
2026-07-13 | Download |
|
A266BXXSBCZG2
Security update
|
11 | STH | 16 |
2026-07-13 | Download |
|
A266BXXSBCZG2
Security update
|
11 | GLB | 16 |
2026-07-13 | Download |
|
A266BXXSBCZG2
Security update
|
11 | XTC | 16 |
2026-07-13 | Download |
|
A266BXXSBCZG2
Security update
|
11 | XNZ | 16 |
2026-07-13 | Download |
|
A266BXXSBCZG2
Security update
|
11 | XID | 16 |
2026-07-13 | Download |
|
A266BXXSBCZG2
Security update
|
11 | THL | 16 |
2026-07-13 | Download |
|
A266BXXSBCZG2
Security update
|
11 | BRI | 16 |
2026-07-13 | Download |
|
A266BXXSBCZG2
Security update
|
11 | XSA | 16 |
2026-07-13 | Download |
|
A266BXXSBCZG2
Security update
|
11 | XSP | 16 |
2026-07-13 | Download |
|
A266BXXSBCZG2
Security update
|
11 | VFJ | 16 |
2026-07-13 | Download |
|
A266BXXSBCZG2
Security update
|
11 | ILP | 16 |
2026-07-13 | Download |
|
A266BXXSBCZG2
Security update
|
11 | SIM | 16 |
2026-07-10 | Download |
|
A266BXXSBCZG2
Security update
|
11 | SFR | 16 |
2026-07-10 | Download |
|
A266BXXSBCZG2
Security update
|
11 | MEO | 16 |
2026-07-10 | Download |
|
A266BXXSBCZG2
Security update
|
11 | EUX | 16 |
2026-07-10 | Download |
|
A266BXXSBCZG2
Security update
|
11 | MOT | 16 |
2026-07-10 | Download |
|
A266BXXSBCZG2
Security update
|
11 | BOG | 16 |
2026-07-10 | Download |
|
A266BXXSACZF2
Security update
|
10 | XID | 16 |
2026-06-11 | Download |
|
A266BXXSACZF1
Security update
|
10 | PAK | 16 |
2026-06-10 | Download |
|
A266BXXSACZF1
Security update
|
10 | XSG | 16 |
2026-06-10 | Download |
|
A266BXXSACZF1
Security update
|
10 | LYS | 16 |
2026-06-10 | Download |
|
A266BXXSACZF1
Security update
|
10 | KSA | 16 |
2026-06-10 | Download |
|
A266BXXSACZF1
Security update
|
10 | TUN | 16 |
2026-06-10 | Download |
|
A266BXXSACZF1
Security update
|
10 | ILP | 16 |
2026-06-10 | Download |
|
A266BXXSACZF1
Security update
|
10 | ACR | 16 |
2026-06-10 | Download |
|
A266BXXSACZF1
Security update
|
10 | EGY | 16 |
2026-06-10 | Download |
|
A266BXXSACZF1
Security update
|
10 | FWD | 16 |
2026-06-10 | Download |
|
A266BXXSACZF1
Security update
|
10 | ECT | 16 |
2026-06-10 | Download |
|
A266BXXSACZF1
Security update
|
10 | PKD | 16 |
2026-06-10 | Download |
|
A266BXXSACZF1
Security update
|
10 | MID | 16 |
2026-06-10 | Download |
|
A266BXXSACZF1
Security update
|
10 | DKR | 16 |
2026-06-10 | Download |
|
A266BXXSACZF1
Security update
|
10 | XFV | 16 |
2026-06-10 | Download |
|
A266BXXSACZF1
Security update
|
10 | XFA | 16 |
2026-06-10 | Download |
|
A266BXXSACZF1
Security update
|
10 | AFG | 16 |
2026-06-10 | Download |
|
A266BXXSACZF1
Security update
|
10 | MWD | 16 |
2026-06-10 | Download |
|
A266BXXSACZF1
Security update
|
10 | AFR | 16 |
2026-06-10 | Download |
|
A266BXXSACZF1
Security update
|
10 | ILO | 16 |
2026-06-10 | Download |
|
A266BXXU9CZEA
Feature update
|
9 | INS | 16 |
2026-05-19 | Download |
|
A266BXXU9CZEA
Feature update
|
9 | NPB | 16 |
2026-05-19 | Download |
|
A266BXXU9CZEA
Feature update
|
9 | SLK | 16 |
2026-05-19 | Download |
|
A266BXXU9CZEA
Feature update
|
9 | BKD | 16 |
2026-05-19 | Download |
|
A266BXXU9CZEA
Feature update
|
9 | BOG | 16 |
2026-05-14 | Download |
|
A266BXXU9CZEA
Feature update
|
9 | XSA | 16 |
2026-05-14 | Download |
|
A266BXXU9CZEA
Feature update
|
9 | XME | 16 |
2026-05-14 | Download |
|
A266BXXU9CZEA
Feature update
|
9 | BRI | 16 |
2026-05-14 | Download |
|
A266BXXU9CZEA
Feature update
|
9 | THL | 16 |
2026-05-14 | Download |
|
A266BXXU9CZEA
Feature update
|
9 | XXV | 16 |
2026-05-14 | Download |
|
A266BXXU9CZEA
Feature update
|
9 | CAU | 16 |
2026-05-14 | Download |
|
A266BXXU9CZEA
Feature update
|
9 | XID | 16 |
2026-05-14 | Download |
|
A266BXXU9CZEA
Feature update
|
9 | XNZ | 16 |
2026-05-14 | Download |
|
A266BXXU9CZEA
Feature update
|
9 | XSP | 16 |
2026-05-14 | Download |
|
A266BXXU9CZEA
Feature update
|
9 | TUR | 16 |
2026-05-14 | Download |
|
A266BXXU9CZEA
Feature update
|
9 | VFJ | 16 |
2026-05-14 | Download |
|
A266BXXU9CZEA
Feature update
|
9 | LYS | 16 |
2026-05-14 | Download |
|
A266BXXU9CZEA
Feature update
|
9 | EGY | 16 |
2026-05-14 | Download |
|
A266BXXU9CZEA
Feature update
|
9 | FWD | 16 |
2026-05-14 | Download |
|
A266BXXU9CZEA
Feature update
|
9 | AFG | 16 |
2026-05-14 | Download |
|
A266BXXS8BZB6
Security update
|
8 | SOZ | 16 |
2026-03-11 | Download |
|
A266BXXS8BZB6
Security update
|
8 | SKZ | 16 |
2026-03-11 | Download |
|
A266BXXS8BZB6
Security update
|
8 | CAU | 16 |
2026-03-11 | Download |
|
A266BXXS8BZB6
Security update
|
8 | CAC | 16 |
2026-03-11 | Download |
|
A266BXXS8BZB7
Security update
|
8 | SLK | 16 |
2026-03-10 | Download |
|
A266BXXS8BZB7
Security update
|
8 | NPB | 16 |
2026-03-10 | Download |
|
A266BXXS8BZB7
Security update
|
8 | INS | 16 |
2026-03-10 | Download |
|
A266BXXS8BZB7
Security update
|
8 | BKD | 16 |
2026-03-10 | Download |
|
A266BXXS8BZB6
Security update
|
8 | XFV | 16 |
2026-03-10 | Download |
|
A266BXXS8BZB6
Security update
|
8 | XFA | 16 |
2026-03-10 | Download |
|
A266BXXS8BZB6
Security update
|
8 | AFR | 16 |
2026-03-10 | Download |
|
A266BXXS8BZB6
Security update
|
8 | DKR | 16 |
2026-03-10 | Download |
|
A266BXXS8BZB6
Security update
|
8 | MWD | 16 |
2026-03-10 | Download |
|
A266BXXS8BZB6
Security update
|
8 | PKD | 16 |
2026-03-10 | Download |
|
A266BXXS8BZB6
Security update
|
8 | ACR | 16 |
2026-03-10 | Download |
|
A266BXXS8BZB6
Security update
|
8 | ILO | 16 |
2026-03-10 | Download |
|
A266BXXS8BZB6
Security update
|
8 | ECT | 16 |
2026-03-10 | Download |
|
A266BXXS8BZB6
Security update
|
8 | ILP | 16 |
2026-03-10 | Download |
|
A266BXXS8BZB6
Security update
|
8 | VFJ | 16 |
2026-03-10 | Download |
|
A266BXXS8BZB6
Security update
|
8 | XID | 16 |
2026-03-10 | Download |
|
A266BXXS7BZA5
Security update
|
7 | BKD | 16 |
2026-02-04 | Download |
|
A266BXXS7BZA5
Security update
|
7 | NPB | 16 |
2026-02-04 | Download |
|
A266BXXS7BZA5
Security update
|
7 | SLK | 16 |
2026-02-04 | Download |
|
A266BXXS7BZA5
Security update
|
7 | INS | 16 |
2026-02-04 | Download |
|
A266BXXS7BZA3
Security update
|
7 | SOZ | 16 |
2026-01-28 | Download |
|
A266BXXS7BZA3
Security update
|
7 | SKZ | 16 |
2026-01-28 | Download |
|
A266BXXS7BZA3
Security update
|
7 | CAU | 16 |
2026-01-28 | Download |
|
A266BXXS7BZA3
Security update
|
7 | CAC | 16 |
2026-01-28 | Download |
|
A266BXXS7BZA3
Security update
|
7 | ILP | 16 |
2026-01-27 | Download |
|
A266BXXS7BZA3
Security update
|
7 | ILO | 16 |
2026-01-27 | Download |
|
A266BXXS7BZA3
Security update
|
7 | XSG | 16 |
2026-01-26 | Download |
|
A266BXXS7BZA3
Security update
|
7 | XFV | 16 |
2026-01-26 | Download |
|
A266BXXS7BZA3
Security update
|
7 | XFA | 16 |
2026-01-26 | Download |
|
A266BXXS7BZA3
Security update
|
7 | TUN | 16 |
2026-01-26 | Download |
|
A266BXXS7BZA3
Security update
|
7 | PKD | 16 |
2026-01-26 | Download |
|
A266BXXS7BZA3
Security update
|
7 | PAK | 16 |
2026-01-26 | Download |
|
A266BXXS7BZA3
Security update
|
7 | MWD | 16 |
2026-01-26 | Download |
|
A266BXXS7BZA3
Security update
|
7 | MID | 16 |
2026-01-26 | Download |
|
A266BXXS7BZA3
Security update
|
7 | LYS | 16 |
2026-01-26 | Download |
|
A266BXXS7BZA3
Security update
|
7 | KSA | 16 |
2026-01-26 | Download |
Latest SM-A266B Firmware by Region
The newest build for each region (CSC) code. Not sure which region your phone uses? See the CSC code guide.
| Region | Latest build | Bit | Android | Date |
|---|---|---|---|---|
| ACR | A266BXXSACZF1 | 10 | 16 | 2026-06-10 |
| AFG | A266BXXSBCZG2 | 11 | 16 | 2026-07-13 |
| AFR | A266BXXSACZF1 | 10 | 16 | 2026-06-10 |
| BKD | A266BXXSCCZH5 | 12 | 16 | 2026-08-25 |
| BOG | A266BXXSCCZH3 | 12 | 16 | 2026-08-15 |
| BRI | A266BXXSBCZG2 | 11 | 16 | 2026-07-13 |
| CAC | A266BXXS8BZB6 | 8 | 16 | 2026-03-11 |
| CAU | A266BXXU9CZEA | 9 | 16 | 2026-05-14 |
| DKR | A266BXXSBCZG2 | 11 | 16 | 2026-07-13 |
| ECT | A266BXXSCCZH3 | 12 | 16 | 2026-08-18 |
| EGY | A266BXXSCCZH3 | 12 | 16 | 2026-08-18 |
| EUX | A266BXXSCCZH3 | 12 | 16 | 2026-08-15 |
| EUY | A266BXXSCCZH3 | 12 | 16 | 2026-08-15 |
| FWD | A266BXXSCCZH3 | 12 | 16 | 2026-08-18 |
| GLB | A266BXXUCDZJ6 | 12 | 17 | 2026-10-19 |
| ILO | A266BXXSACZF1 | 10 | 16 | 2026-06-10 |
| ILP | A266BXXSBCZG2 | 11 | 16 | 2026-07-13 |
| INS | A266BXXSCCZH5 | 12 | 16 | 2026-08-25 |
| KSA | A266BXXSCCZH3 | 12 | 16 | 2026-08-18 |
| LYS | A266BXXSCCZH3 | 12 | 16 | 2026-08-18 |
| MEO | A266BXXSCCZH3 | 12 | 16 | 2026-08-15 |
| MET | A266BXXSCCZH3 | 12 | 16 | 2026-08-15 |
| MID | A266BXXSBCZG2 | 11 | 16 | 2026-07-13 |
| MM1 | A266BXXSBCZG2 | 11 | 16 | 2026-07-13 |
| MOT | A266BXXSCCZH3 | 12 | 16 | 2026-08-15 |
| MSR | A266BXXSCCZH3 | 12 | 16 | 2026-08-15 |
| MWD | A266BXXSACZF1 | 10 | 16 | 2026-06-10 |
| NPB | A266BXXSCCZH5 | 12 | 16 | 2026-08-25 |
| PAK | A266BXXSCCZH3 | 12 | 16 | 2026-08-18 |
| PKD | A266BXXSACZF1 | 10 | 16 | 2026-06-10 |
| PLS | A266BXXSCCZH3 | 12 | 16 | 2026-08-15 |
| PRT | A266BXXSCCZH3 | 12 | 16 | 2026-08-15 |
| SFR | A266BXXSCCZH3 | 12 | 16 | 2026-08-15 |
| SIM | A266BXXSCCZH3 | 12 | 16 | 2026-08-15 |
| SIN | A266BXXSBCZG2 | 11 | 16 | 2026-07-13 |
| SKZ | A266BXXS8BZB6 | 8 | 16 | 2026-03-11 |
| SLK | A266BXXSCCZH5 | 12 | 16 | 2026-08-25 |
| SOZ | A266BXXS8BZB6 | 8 | 16 | 2026-03-11 |
| STH | A266BXXSBCZG2 | 11 | 16 | 2026-07-13 |
| SWC | A266BXXSCCZH3 | 12 | 16 | 2026-08-15 |
| THL | A266BXXUCDZJ6 | 12 | 17 | 2026-10-19 |
| TKD | A266BXXSCCZH4 | 12 | 16 | 2026-09-21 |
| TOP | A266BXXSCCZH3 | 12 | 16 | 2026-08-15 |
| TUN | A266BXXSCCZH3 | 12 | 16 | 2026-08-18 |
| TUR | A266BXXSCCZH3 | 12 | 16 | 2026-08-15 |
| VFJ | A266BXXSCCZH3 | 12 | 16 | 2026-08-18 |
| VIP | A266BXXSCCZH3 | 12 | 16 | 2026-08-15 |
| XFA | A266BXXSBCZG2 | 11 | 16 | 2026-07-13 |
| XFV | A266BXXSBCZG2 | 11 | 16 | 2026-07-13 |
| XID | A266BXXSBCZG2 | 11 | 16 | 2026-07-13 |
| XME | A266BXXUCDZJ6 | 12 | 17 | 2026-10-19 |
| XNZ | A266BXXSCCZH3 | 12 | 16 | 2026-08-18 |
| XSA | A266BXXSCCZH3 | 12 | 16 | 2026-08-18 |
| XSG | A266BXXSCCZH3 | 12 | 16 | 2026-08-18 |
| XSP | A266BXXSCCZH3 | 12 | 16 | 2026-08-18 |
| XTC | A266BXXUCDZJ6 | 12 | 17 | 2026-10-19 |
| XXV | A266BXXUCDZJ6 | 12 | 17 | 2026-10-19 |
How to Flash SM-A266B Firmware
Put the Samsung Galaxy A26 5G into Download Mode, load the BL, AP, CP and CSC files into Odin on a Windows PC and press Start. Pick a build with Bit 12 or higher if your phone is already on the latest firmware. Use HOME_CSC to keep your data, CSC for a full wipe.