Samsung Galaxy A3 (SM-A300YZ) Firmware Overview
What is the latest SM-A300YZ firmware?
A300YZUJS1BQB3, released March 3, 2017 for region CRM with Android 5.0.2. It is a security update on bootloader binary 1. The archive holds 3 official builds for this region.
Is the Samsung Galaxy A3 still getting updates?
Most likely not: there has been no new firmware since March 2017, so Android 5.0.2 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-A300YZ 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 Sep 2016
SM-A300YZ firmware for region CRM
How to Flash SM-A300YZ 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.