Samsung Galaxy A05 (SM-A055M) Firmware Overview
What is the latest SM-A055M firmware?
A055MUBSKDZI3, released October 1, 2026 with Android 15. It is a security update on bootloader binary 20. The archive holds 103 official builds across 45 regions (CSC).
Is the Samsung Galaxy A05 still getting updates?
Yes. The newest build is from October 2026, and 21 of 45 regions already have a build from that month; the rest usually follow within a few weeks.
Can I downgrade the SM-A055M firmware?
Only to builds with the same bootloader binary (the Bit column) or higher. In the archive the binary of this model rose from 15 to 20:
- Binary 20 — since Sep 2026
- Binary 19 — since Jun 2026
- Binary 18 — since May 2026
- Binary 16 — since Feb 2026
- Binary 15 — since Jan 2026
A phone already on binary 20 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 20 build. How to read a build number.
All SM-A055M firmware builds
| Build / PDA | Bit | Region (CSC) | Android | Date | Download Link |
|---|---|---|---|---|---|
|
A055MUBSKDZI3
Security update
|
20 | CRC | 15 |
2026-10-01 | Download |
|
A055MUBSKDZI3
Security update
|
20 | DOR | 15 |
2026-10-01 | Download |
|
A055MUBSKDZI3
Security update
|
20 | ARO | 15 |
2026-10-01 | Download |
|
A055MUBSKDZI3
Security update
|
20 | CTI | 15 |
2026-10-01 | Download |
|
A055MUBSKDZI3
Security update
|
20 | CTP | 15 |
2026-10-01 | Download |
|
A055MUBSKDZI3
Security update
|
20 | PSN | 15 |
2026-10-01 | Download |
|
A055MUBSKDZI3
Security update
|
20 | PSP | 15 |
2026-10-01 | Download |
|
A055MUBSKDZI3
Security update
|
20 | UFN | 15 |
2026-10-01 | Download |
|
A055MUBSKDZI3
Security update
|
20 | ZTA | 15 |
2026-10-01 | Download |
|
A055MUBSKDZI3
Security update
|
20 | ZTM | 15 |
2026-10-01 | Download |
|
A055MUBSKDZI3
Security update
|
20 | ZTO | 15 |
2026-10-01 | Download |
|
A055MUBSKDZI3
Security update
|
20 | ZVV | 15 |
2026-10-01 | Download |
|
A055MUBSKDZI3
Security update
|
20 | CTU | 15 |
2026-10-01 | Download |
|
A055MUBSKDZI3
Security update
|
20 | BVO | 15 |
2026-10-01 | Download |
|
A055MUBSKDZI3
Security update
|
20 | CDR | 15 |
2026-10-01 | Download |
|
A055MUBSKDZI3
Security update
|
20 | GTO | 15 |
2026-10-01 | Download |
|
A055MUBSKDZI3
Security update
|
20 | COM | 15 |
2026-10-01 | Download |
|
A055MUBSKDZI3
Security update
|
20 | PGU | 15 |
2026-10-01 | Download |
|
A055MUBSKDZI3
Security update
|
20 | COO | 15 |
2026-10-01 | Download |
|
A055MUBSKDZI3
Security update
|
20 | PEO | 15 |
2026-10-01 | Download |
|
A055MUBSKDZI3
Security update
|
20 | UYO | 15 |
2026-10-01 | Download |
|
A055MUBSJDZF1
Security update
|
19 | CGU | 15 |
2026-06-19 | Download |
|
A055MUBSJDZF1
Security update
|
19 | ZVV | 15 |
2026-06-19 | Download |
|
A055MUBSJDZF1
Security update
|
19 | GTO | 15 |
2026-06-19 | Download |
|
A055MUBSJDZF1
Security update
|
19 | ZTO | 15 |
2026-06-19 | Download |
|
A055MUBSJDZF1
Security update
|
19 | TPA | 15 |
2026-06-19 | Download |
|
A055MUBSJDZF1
Security update
|
19 | ZTM | 15 |
2026-06-19 | Download |
|
A055MUBSJDZF1
Security update
|
19 | COM | 15 |
2026-06-19 | Download |
|
A055MUBSJDZF1
Security update
|
19 | BVO | 15 |
2026-06-19 | Download |
|
A055MUBSJDZF1
Security update
|
19 | ZTA | 15 |
2026-06-19 | Download |
|
A055MUBSJDZF1
Security update
|
19 | CHL | 15 |
2026-06-19 | Download |
|
A055MUBSJDZF1
Security update
|
19 | PCT | 15 |
2026-06-19 | Download |
|
A055MUBSJDZF1
Security update
|
19 | ANC | 15 |
2026-06-19 | Download |
|
A055MUBSJDZF1
Security update
|
19 | UYO | 15 |
2026-06-19 | Download |
|
A055MUBSJDZF1
Security update
|
19 | UFU | 15 |
2026-06-19 | Download |
|
A055MUBSJDZF1
Security update
|
19 | TCE | 15 |
2026-06-19 | Download |
|
A055MUBSJDZF1
Security update
|
19 | TMM | 15 |
2026-06-19 | Download |
|
A055MUBSJDZF1
Security update
|
19 | MXO | 15 |
2026-06-19 | Download |
|
A055MUBSJDZF1
Security update
|
19 | IUS | 15 |
2026-06-19 | Download |
|
A055MUBSJDZF1
Security update
|
19 | EBE | 15 |
2026-06-19 | Download |
|
A055MUBSJDZF1
Security update
|
19 | EON | 15 |
2026-06-19 | Download |
|
A055MUBSJDZF1
Security update
|
19 | ECO | 15 |
2026-06-19 | Download |
|
A055MUBSJDZF1
Security update
|
19 | PEO | 15 |
2026-06-19 | Download |
|
A055MUBSIDZE1
Security update
|
18 | COL | 15 |
2026-06-03 | Download |
|
A055MUBSIDZE1
Security update
|
18 | PGU | 15 |
2026-06-03 | Download |
|
A055MUBSIDZE1
Security update
|
18 | COM | 15 |
2026-06-03 | Download |
|
A055MUBSIDZE1
Security update
|
18 | GTO | 15 |
2026-06-03 | Download |
|
A055MUBSIDZE1
Security update
|
18 | CDR | 15 |
2026-06-03 | Download |
|
A055MUBSIDZE1
Security update
|
18 | CRC | 15 |
2026-06-03 | Download |
|
A055MUBSIDZE1
Security update
|
18 | CHO | 15 |
2026-06-03 | Download |
|
A055MUBSIDZE1
Security update
|
18 | CHL | 15 |
2026-06-03 | Download |
|
A055MUBSIDZE1
Security update
|
18 | CHE | 15 |
2026-06-03 | Download |
|
A055MUBSIDZE1
Security update
|
18 | CHT | 15 |
2026-06-03 | Download |
|
A055MUBSIDZE1
Security update
|
18 | CHX | 15 |
2026-06-03 | Download |
|
A055MUBSIDZE1
Security update
|
18 | EBE | 15 |
2026-06-03 | Download |
|
A055MUBSIDZE1
Security update
|
18 | CGU | 15 |
2026-06-03 | Download |
|
A055MUBSIDZE1
Security update
|
18 | DOR | 15 |
2026-06-03 | Download |
|
A055MUBSIDZE1
Security update
|
18 | SAM | 15 |
2026-06-03 | Download |
|
A055MUBSIDZE1
Security update
|
18 | PNT | 15 |
2026-06-03 | Download |
|
A055MUBSIDZE1
Security update
|
18 | PET | 15 |
2026-06-03 | Download |
|
A055MUBSIDZE1
Security update
|
18 | PEO | 15 |
2026-06-03 | Download |
|
A055MUBSIDZE1
Security update
|
18 | COO | 15 |
2026-06-03 | Download |
|
A055MUBSIDZE1
Security update
|
18 | COB | 15 |
2026-06-03 | Download |
|
A055MUBUGDZB2
Feature update
|
16 | PCT | 15 |
2026-03-18 | Download |
|
A055MUBUGDZB2
Feature update
|
16 | BVO | 15 |
2026-03-18 | Download |
|
A055MUBUGDZB2
Feature update
|
16 | DOR | 15 |
2026-03-18 | Download |
|
A055MUBUGDZB2
Feature update
|
16 | CRC | 15 |
2026-03-18 | Download |
|
A055MUBUGDZB2
Feature update
|
16 | GLO | 15 |
2026-03-18 | Download |
|
A055MUBUGDZB2
Feature update
|
16 | UFU | 15 |
2026-03-17 | Download |
|
A055MUBUGDZB2
Feature update
|
16 | ANC | 15 |
2026-03-17 | Download |
|
A055MUBUGDZB2
Feature update
|
16 | UYO | 15 |
2026-03-17 | Download |
|
A055MUBUGDZB2
Feature update
|
16 | UFN | 15 |
2026-03-17 | Download |
|
A055MUBUGDZB2
Feature update
|
16 | PGU | 15 |
2026-03-17 | Download |
|
A055MUBUGDZB2
Feature update
|
16 | GTO | 15 |
2026-03-17 | Download |
|
A055MUBUGDZB2
Feature update
|
16 | CDR | 15 |
2026-03-17 | Download |
|
A055MUBUGDZB2
Feature update
|
16 | CGU | 15 |
2026-03-17 | Download |
|
A055MUBUGDZB2
Feature update
|
16 | COM | 15 |
2026-03-17 | Download |
|
A055MUBUGDZB2
Feature update
|
16 | PET | 15 |
2026-03-17 | Download |
|
A055MUBUGDZB2
Feature update
|
16 | PEO | 15 |
2026-03-17 | Download |
|
A055MUBUGDZB2
Feature update
|
16 | SAM | 15 |
2026-03-17 | Download |
|
A055MUBUGDZB2
Feature update
|
16 | PNT | 15 |
2026-03-17 | Download |
|
A055MUBUGDZB2
Feature update
|
16 | ARO | 15 |
2026-03-17 | Download |
|
A055MUBUGDZB2
Feature update
|
16 | CTU | 15 |
2026-03-17 | Download |
|
A055MUBSFDZA1
Security update
|
15 | COM | 15 |
2026-02-03 | Download |
|
A055MUBSFDZA1
Security update
|
15 | PCT | 15 |
2026-01-30 | Download |
|
A055MUBSFDZA1
Security update
|
15 | PNT | 15 |
2026-01-29 | Download |
|
A055MUBSFDZA1
Security update
|
15 | PET | 15 |
2026-01-29 | Download |
|
A055MUBSFDZA1
Security update
|
15 | CGU | 15 |
2026-01-29 | Download |
|
A055MUBSFDZA1
Security update
|
15 | CDR | 15 |
2026-01-29 | Download |
|
A055MUBSFDZA1
Security update
|
15 | UFU | 15 |
2026-01-29 | Download |
|
A055MUBSFDZA1
Security update
|
15 | MXO | 15 |
2026-01-29 | Download |
|
A055MUBSFDZA1
Security update
|
15 | ANC | 15 |
2026-01-29 | Download |
|
A055MUBSFDZA1
Security update
|
15 | TPA | 15 |
2026-01-29 | Download |
|
A055MUBSFDZA1
Security update
|
15 | ZTM | 15 |
2026-01-29 | Download |
|
A055MUBSFDZA1
Security update
|
15 | ZTA | 15 |
2026-01-29 | Download |
|
A055MUBSFDZA1
Security update
|
15 | ZVV | 15 |
2026-01-29 | Download |
|
A055MUBSFDZA1
Security update
|
15 | CTP | 15 |
2026-01-29 | Download |
|
A055MUBSFDZA1
Security update
|
15 | UPO | 15 |
2026-01-29 | Download |
|
A055MUBSFDZA1
Security update
|
15 | GTO | 15 |
2026-01-29 | Download |
|
A055MUBSFDZA1
Security update
|
15 | SAM | 15 |
2026-01-29 | Download |
|
A055MUBSFDZA1
Security update
|
15 | PEO | 15 |
2026-01-29 | Download |
|
A055MUBSFDZA1
Security update
|
15 | CHL | 15 |
2026-01-29 | Download |
|
A055MUBSFDZA1
Security update
|
15 | CHE | 15 |
2026-01-29 | Download |
Latest SM-A055M 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 |
|---|---|---|---|---|
| ANC | A055MUBSJDZF1 | 19 | 15 | 2026-06-19 |
| ARO | A055MUBSKDZI3 | 20 | 15 | 2026-10-01 |
| BVO | A055MUBSKDZI3 | 20 | 15 | 2026-10-01 |
| CDR | A055MUBSKDZI3 | 20 | 15 | 2026-10-01 |
| CGU | A055MUBSJDZF1 | 19 | 15 | 2026-06-19 |
| CHE | A055MUBSIDZE1 | 18 | 15 | 2026-06-03 |
| CHL | A055MUBSJDZF1 | 19 | 15 | 2026-06-19 |
| CHO | A055MUBSIDZE1 | 18 | 15 | 2026-06-03 |
| CHT | A055MUBSIDZE1 | 18 | 15 | 2026-06-03 |
| CHX | A055MUBSIDZE1 | 18 | 15 | 2026-06-03 |
| COB | A055MUBSIDZE1 | 18 | 15 | 2026-06-03 |
| COL | A055MUBSIDZE1 | 18 | 15 | 2026-06-03 |
| COM | A055MUBSKDZI3 | 20 | 15 | 2026-10-01 |
| COO | A055MUBSKDZI3 | 20 | 15 | 2026-10-01 |
| CRC | A055MUBSKDZI3 | 20 | 15 | 2026-10-01 |
| CTI | A055MUBSKDZI3 | 20 | 15 | 2026-10-01 |
| CTP | A055MUBSKDZI3 | 20 | 15 | 2026-10-01 |
| CTU | A055MUBSKDZI3 | 20 | 15 | 2026-10-01 |
| DOR | A055MUBSKDZI3 | 20 | 15 | 2026-10-01 |
| EBE | A055MUBSJDZF1 | 19 | 15 | 2026-06-19 |
| ECO | A055MUBSJDZF1 | 19 | 15 | 2026-06-19 |
| EON | A055MUBSJDZF1 | 19 | 15 | 2026-06-19 |
| GLO | A055MUBUGDZB2 | 16 | 15 | 2026-03-18 |
| GTO | A055MUBSKDZI3 | 20 | 15 | 2026-10-01 |
| IUS | A055MUBSJDZF1 | 19 | 15 | 2026-06-19 |
| MXO | A055MUBSJDZF1 | 19 | 15 | 2026-06-19 |
| PCT | A055MUBSJDZF1 | 19 | 15 | 2026-06-19 |
| PEO | A055MUBSKDZI3 | 20 | 15 | 2026-10-01 |
| PET | A055MUBSIDZE1 | 18 | 15 | 2026-06-03 |
| PGU | A055MUBSKDZI3 | 20 | 15 | 2026-10-01 |
| PNT | A055MUBSIDZE1 | 18 | 15 | 2026-06-03 |
| PSN | A055MUBSKDZI3 | 20 | 15 | 2026-10-01 |
| PSP | A055MUBSKDZI3 | 20 | 15 | 2026-10-01 |
| SAM | A055MUBSIDZE1 | 18 | 15 | 2026-06-03 |
| TCE | A055MUBSJDZF1 | 19 | 15 | 2026-06-19 |
| TMM | A055MUBSJDZF1 | 19 | 15 | 2026-06-19 |
| TPA | A055MUBSJDZF1 | 19 | 15 | 2026-06-19 |
| UFN | A055MUBSKDZI3 | 20 | 15 | 2026-10-01 |
| UFU | A055MUBSJDZF1 | 19 | 15 | 2026-06-19 |
| UPO | A055MUBSFDZA1 | 15 | 15 | 2026-01-29 |
| UYO | A055MUBSKDZI3 | 20 | 15 | 2026-10-01 |
| ZTA | A055MUBSKDZI3 | 20 | 15 | 2026-10-01 |
| ZTM | A055MUBSKDZI3 | 20 | 15 | 2026-10-01 |
| ZTO | A055MUBSKDZI3 | 20 | 15 | 2026-10-01 |
| ZVV | A055MUBSKDZI3 | 20 | 15 | 2026-10-01 |
How to Flash SM-A055M Firmware
Put the Samsung Galaxy A05 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 20 or higher if your phone is already on the latest firmware. Use HOME_CSC to keep your data, CSC for a full wipe.