Samsung Galaxy A15 5G (SM-A156M) Firmware Overview
What is the latest SM-A156M firmware?
A156MUBUAFZJC, released October 20, 2026 with Android 17. It is a feature update on bootloader binary 10. The archive holds 20 official builds across 20 regions (CSC). Each one is the full stock ROM (flash file) for Odin, not an OTA patch.
Is the Samsung Galaxy A15 5G still getting updates?
Yes. The newest build is from October 2026, and 5 of 20 regions already have a build from that month; the rest usually follow within a few weeks.
Which Android versions did it get?
The SM-A156M builds in the archive run Android 16 to 17. The earliest build we have for each version:
- Android 17: A156MUBUAFZJC (Oct 2026), 5 builds in total
- Android 16: A156MUBSAEZG1 (Jul 2026), 15 builds in total
Can I downgrade the SM-A156M firmware?
Only to builds with the same bootloader binary (the Bit column) or higher. All decodable builds in the archive share binary 10:
- Binary 10 — since Jul 2026
All SM-A156M firmware builds
| Build / PDA | Bit | Region (CSC) | Android | Date | Download Link |
|---|---|---|---|---|---|
|
A156MUBUAFZJC
Feature update
|
10 | GTO | 17 |
2026-10-20 | Download |
|
A156MUBUAFZJC
Feature update
|
10 | ZVV | 17 |
2026-10-20 | Download |
|
A156MUBUAFZJC
Feature update
|
10 | ZTO | 17 |
2026-10-20 | Download |
|
A156MUBUAFZJC
Feature update
|
10 | ZTM | 17 |
2026-10-20 | Download |
|
A156MUBUAFZJC
Feature update
|
10 | ZTA | 17 |
2026-10-20 | Download |
|
A156MUBSAEZG1
Security update
|
10 | PSN | 16 |
2026-07-18 | Download |
|
A156MUBSAEZG1
Security update
|
10 | IUS | 16 |
2026-07-18 | Download |
|
A156MUBSAEZG1
Security update
|
10 | ARO | 16 |
2026-07-18 | Download |
|
A156MUBSAEZG1
Security update
|
10 | PNT | 16 |
2026-07-18 | Download |
|
A156MUBSAEZG1
Security update
|
10 | GLO | 16 |
2026-07-18 | Download |
|
A156MUBSAEZG1
Security update
|
10 | PEO | 16 |
2026-07-18 | Download |
|
A156MUBSAEZG1
Security update
|
10 | CRC | 16 |
2026-07-18 | Download |
|
A156MUBSAEZG1
Security update
|
10 | UFU | 16 |
2026-07-18 | Download |
|
A156MUBSAEZG1
Security update
|
10 | UYO | 16 |
2026-07-18 | Download |
|
A156MUBSAEZG1
Security update
|
10 | CTU | 16 |
2026-07-18 | Download |
|
A156MUBSAEZG1
Security update
|
10 | UFN | 16 |
2026-07-18 | Download |
|
A156MUBSAEZG1
Security update
|
10 | TCE | 16 |
2026-07-18 | Download |
|
A156MUBSAEZG1
Security update
|
10 | MXO | 16 |
2026-07-18 | Download |
|
A156MUBSAEZG1
Security update
|
10 | DOR | 16 |
2026-07-18 | Download |
|
A156MUBSAEZG1
Security update
|
10 | UPO | 16 |
2026-07-18 | Download |
Latest SM-A156M 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 |
|---|---|---|---|---|
| ARO | A156MUBSAEZG1 | 10 | 16 | 2026-07-18 |
| CRC | A156MUBSAEZG1 | 10 | 16 | 2026-07-18 |
| CTU | A156MUBSAEZG1 | 10 | 16 | 2026-07-18 |
| DOR | A156MUBSAEZG1 | 10 | 16 | 2026-07-18 |
| GLO | A156MUBSAEZG1 | 10 | 16 | 2026-07-18 |
| GTO | A156MUBUAFZJC | 10 | 17 | 2026-10-20 |
| IUS | A156MUBSAEZG1 | 10 | 16 | 2026-07-18 |
| MXO | A156MUBSAEZG1 | 10 | 16 | 2026-07-18 |
| PEO | A156MUBSAEZG1 | 10 | 16 | 2026-07-18 |
| PNT | A156MUBSAEZG1 | 10 | 16 | 2026-07-18 |
| PSN | A156MUBSAEZG1 | 10 | 16 | 2026-07-18 |
| TCE | A156MUBSAEZG1 | 10 | 16 | 2026-07-18 |
| UFN | A156MUBSAEZG1 | 10 | 16 | 2026-07-18 |
| UFU | A156MUBSAEZG1 | 10 | 16 | 2026-07-18 |
| UPO | A156MUBSAEZG1 | 10 | 16 | 2026-07-18 |
| UYO | A156MUBSAEZG1 | 10 | 16 | 2026-07-18 |
| ZTA | A156MUBUAFZJC | 10 | 17 | 2026-10-20 |
| ZTM | A156MUBUAFZJC | 10 | 17 | 2026-10-20 |
| ZTO | A156MUBUAFZJC | 10 | 17 | 2026-10-20 |
| ZVV | A156MUBUAFZJC | 10 | 17 | 2026-10-20 |
How to Flash SM-A156M Firmware
Put the Samsung Galaxy A15 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 10 or higher if your phone is already on the latest firmware. Use HOME_CSC to keep your data, CSC for a full wipe.