How to root Samsung Galaxy Alpha SM-G850K on Android 5.0.2 [Guide]

Samsung Galaxy Alpha The Samsung Galaxy Alpha has the looks to be a potential smartphone beauty pageant winner when up against any flagship. It’s 4.7 inch display gave the body a better shape than its big brother Samsung Galaxy S5 smartphone. It’s also available now at a price that is cheap enough for you even the most amateur among you to risk a potential soft brick situation by rooting the internal system. Most of the Samsung Galaxy Alpha models have a rooting method available but not all. The AT&T and T-Mobile variant is still one that does not have anything available from the likes of Chainfire and his CF-Auto-Root tool. While that might be the case, one that does have a working rooting method with an official CF-Auto-Root package available is the SM-G850F and we’ll show you how that’s done after the jump.


  • There are a few version of the Samsung Galaxy Alpha each with unique model numbers. The model numbers require separate files. Only use this guide on the Samsung Galaxy Alpha with the SM-G850K model number.
  • You must have a computer that is running a Windows operating system to use this guide to root the Samsung Galaxy Alpha smartphone using the CF-Auto-Root tool by Chainfire. It’s the same way with all of his rooting files for Samsung devices.


  • Turn on the USB Debugging Mode from the Samsung Galaxy Alpha’s Settings by tapping on the Settings > Developer Options > USB Debugging Mode. Anyone who could not find the Developer Options menu because it is currently hidden on the Alpha can get it to appear by tapping on the Settings > About Device > Build Number and keep tapping at least 7 times until it eventually says you are using the device as a developer.
  • Rooting the Samsung Galaxy Alpha does void the warranty. ¬†Further, the CF-Auto-Root tool does trip Knox if your device is a Knox enabled smartphone.
  • Note that you can install a custom recovery before or after using the guide for rooting the Samsung Galaxy Alpha. The CF-Auto-Root tool does not affect the way in which you install a custom recovery at all.
  • It’s best to install the Samsung USB Drivers on your computer before starting the guide so your Galaxy Alpha can talk to the computer and the Odin flashing tool that will be running on the computer.


  1. Download the updated CF-Auto-Root for the Alpha G850K on Android 5.0.2 from here.
  2. Extract the file on your desktop to get the rooting package and the Odin executable.
  3. Right-click on the Odin executable and choose to run it as an administrator.
  4. Do not make any changes from the Odin user-interface when it opens on the desktop.
  5. Boot the Samsung Galaxy Alpha in download mode and connect it to the computer with the USB cable.
  6. Click the AP button from the Odin application and browse the desktop of the computer for the rooting package you extracted at the beginning of the guide.
  7. Click on the Start button when you are ready to start the rooting.
  8. Wait until you get a green light from the message box and for the message inside to say it has passed before closing your Odin app and unplugging from the computer.

In conclusion, that’s how to root the Samsung Galaxy Alpha SM-G850K running on the current Android 5.0.2 Lollipop software update. The smartphone should boot into recovery mode automatically at the end and that’s when you know your device is rooted. Any device that doesn’t do that will need to be booted into recovery using the hardware keys. Press the key combination as soon as the flashing completes.

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