Samsung Galaxy A3 (SM-A300M) Firmware Overview
What is the latest SM-A300M firmware?
A300MUBS1BRK3, released March 16, 2021 for region ZTO with Android 4.4.4. It is a security update on bootloader binary 1. The archive holds 1 official build for this region.
Is the Samsung Galaxy A3 still getting updates?
Most likely not: there has been no new firmware since March 2021, so Android 4.4.4 is the last version this model got. The final builds below are still the best choice for a clean reinstall.
Can I downgrade the SM-A300M firmware?
Only to builds with the same bootloader binary (the Bit column) or higher. All decodable builds in the archive share binary 1:
- Binary 1 — since Nov 2018
SM-A300M firmware for region ZTO
| Build / PDA | Bit | Region (CSC) | Android | Date | Download Link |
|---|---|---|---|---|---|
|
A300MUBS1BRK3
Security update
|
1 | ZTO | 4.4.4 |
2021-03-16 | Download |
How to Flash SM-A300M Firmware
Put the Samsung Galaxy A3 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 1 or higher if your phone is already on the latest firmware. Use HOME_CSC to keep your data, CSC for a full wipe.