(Last Updated On: March 28, 2017)

If you are looking for new reasons to root the Samsung Galaxy A3 smartphone, few come better than installing the Greenify application. With Grenify, you can check out the applications that decide to run in the background on your device, and even how frequently those same apps continue waking up. Once you learn that information, you can choose to hibernate certain apps and stop them from chewing up your battery on the Samsung Galaxy A3 smartphone. The Greenify application is always on the list of essential apps to add to your collection once you have root access.

The rooting file for the A3 in this guide is based on LRX22G.A300MUBU1BOK1 firmware which is part of an Android 5.0.2 Lollipop software update for some regions. It doesn’t matter if that same firmware build number is available for your region because you do not have to flash it on your device.

Samsung A3

Files You Need

  1. Download the CF-Auto-Root file for the A3 Duos on Android 5.0.2 Lollipop from here.

Rooting the Samsung Galaxy A3 SM-A300M Duos On Android 5.0.2

  1. Enable the USB Debugging Mode on the Samsung Galaxy A3 Duos smartphone so it can connect to the computer and use its programs.
  2. Extract the CF-Auto-Root file once you get it on the desktop.
  3. Right-click on the Odin executable file that you will now have on the desktop after extracting the original rooting file.
  4. Choose to run the Odin flashing application as an administrator.
  5. Boot the Samsung Galaxy A3 Duos smartphone to download mode and then connect it to the computer with the USB cable.
  6. Wait for around 5 to 10 seconds and a yellow or blue ID: COM port should light up on the top left side of your Odin application. No light coming from your ID: COM port means that you need to install the Windows universal ADB driver and try again.
  7. Click the AP button from the Odin user interface and browse the desktop location for the tar.md5 rooting file that is for your Samsung Galaxy A3 Duos smartphone.
  8. Do not make any changes from the default settings that you normally see from the Odin application.
  9. Click the Start button and the flashing application will now apply the CF-Auto-root to the Galaxy A3 smartphone.
  10. Wait until the flashing is done and then you should see it says that your Galaxy A3 is getting the SuperSU installed, cleaning up the cache partition and re-flashing the stock recovery.
  11. Now look back at the Odin application and check that it shows a green light coming from a box that says your device has passed.

In conclusion, that’s all you need to root the Samsung Galaxy A3 SM-A300M Duos running on the Android 5.0.2 Lollipop software update. You can always boot your device into the recovery mode manually by using the hardware button combination if yours didn’t get into recovery automatically after the flashing.

Anyone who is not finding the Samsung Galaxy A3 Duos gets rooted following this guide will need to try installing a new version of the Odin flashing application and try again with the different version.