How to root Samsung Galaxy On5 SM-G550FY on Android 6.0.1 with CF-Auto-Root [Guide]

sm-g550fy-galaxy-on5By choosing to root the Samsung Galaxy On5 SM-G550FY smartphone you are opening the doors up for the root user account which is always there in Android but the Android developers take it away by choice. There is nothing wrong with gaining rooting rights over the operating system; it is just easier for Android to block it automatically and those who need it can follow a guide like this one to make it happen.

The following demonstrates what you need to become the root user on the Samsung Galaxy On5 SM-G550FY smartphones when running on the Android 6.0.1 Marshmallow software updates.


  • You need to have the Samsung Galaxy On5 smartphone that comes with the SM-G550FY model number if you are flashing the version of the CF-Auto-Root tool in this guide. Unlike traditional custom recovery images, if you flash the CF-Auto-Root on the wrong device if often bricks it.
  • You need to have a computer that is operating on Windows or else the Odin flashing tool found in this guide will not work.


  • You need to install the Samsung USB Drivers on the computer if they are not installed on the computer already because those USB Drivers are what allows the Samsung Galaxy On5 smartphone to communicate with the flashing tool when it is running on the computer.
  • You need to unlock the Developer Options menu on the Samsung Galaxy On5 smartphone if it is not unlocked already so you can enable the USB Debugging Mode from the Developer Options menu. That USB Debugging is required if you are to make changes to the Android software which is what the CF-Auto-Root tool must do if the rooting is to be successful.
  • Note that Chainfire had the MMB29M.J500FXXU1BPG5 firmware build number running on the Samsung Galaxy On5 SM-G550FY smartphone but that does not mean you need to be doing the same. You just need to have the SM-G550FY model number and be running on Android 6.0.1, and the guide should work for you.


  1. Download the CF-Auto-Root tool for the Samsung Galaxy On5 SM-G550FY running Android 6.0.1 Marshmallow.
  2. Open the Downloads folder and extract the rooting file to the Downloads folder and you can see the Odin flashing tool and the flashable version of the rooting file.
  3. Run the Odin flashing tool so the user interface opens up on the computer.
  4. Boot the Samsung Galaxy On5 SM-G550FY into the Download Mode and connect it to the computer with the USB cable.
  5. Check that Odin shows an added message from the Log entry and the ID: COM port lights up a blue or yellow color, so you know that your device is connected correctly thanks to the Samsung USB Drivers working.
  6. Click on the Start button from Odin and the rooting begins.
  7. Since this is the systemless root version of the CF-Auto-Root tool, it can boot loop a few times—don’t be alarm by this or by the fact that it can take several minutes for the rooting to complete with this version.
  8. Wait until you get a green box with a pass message inside it before unplugging from the computer and the USB cable.

In conclusion, that is how to root Samsung Galaxy On5 SM-G550FY smartphones running on Android 6.0.1 Marshmallow software updates by flashing the systemless root version of the CF-Auto-Root one-click rooting tool developed by Chainfire. You get the SuperSU app available from the app drawer just the same as you would from using other versions of CF-Auto-Root. The only difference is that applying a hard reset now will full unroot the device whereas before you needed to do it from within the SuperSU app or by flashing a stock ROM on the device.

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