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Writer's pictureKyser Clark

How to Install Custom Firmware on Your Flipper Zero


Flipper Zero

Hey cyber friends, Kyser here. Today, I’m walking you through the process of installing custom firmware on your Flipper Zero. If you're serious about hacking and security testing with the Flipper Zero, custom firmware is a game-changer. Let’s dive in. Video Tutorial:


Why Custom Firmware?

The official firmware that comes with the Flipper Zero is decent, but custom firmware significantly enhances your device's capabilities. With custom firmware, you gain access to more apps, additional attack vectors, and extensive customization options. It’s a must-have if you want to fully leverage the power of your Flipper Zero.

Pre-Installation: Setting Up Official Firmware

Before you can install custom firmware, you need the official firmware up and running. Here's how to do it:

  1. Install a MicroSD Card: The Flipper Zero requires a microSD card, with a maximum size of 256 GB. Remember, the SD card will be completely formatted, so use one that you don’t need or a brand new one.

  2. Install QFlipper: Download and install QFlipper from flipperzero.one/update. This desktop application will help you manage and update your Flipper Zero.

Installing Official Firmware

  1. Connect Your Flipper Zero: Use a USB Type-C cable to connect your Flipper Zero to your computer. QFlipper should recognize your device.

  2. Install Firmware: Open QFlipper, click the wrench icon, and select the 'Release' version for the most stable official firmware. Hit 'Install' and then 'Update'. QFlipper will handle the rest.

Custom Firmware Options

In this guide, we'll cover two popular custom firmwares: Unleashed and Xtreme. Both offer unique benefits, and while I won’t make specific recommendations here, I personally use both on two different Flipper Zeros.


Installing Unleashed Firmware

  1. Visit the GitHub Repo: Go to github.com/darkflippers/unleashed-firmware. Look for the latest release.

  2. Web Updater: Scroll down to 'Install via Web Updater'. Click on it, and it will take you to lab.flipper.net. If your Flipper is still connected, it should automatically detect it.

  3. Select and Install: Choose the 'Release-CFW' option, which corresponds to Unleashed. Hit 'Install' and let it download and flash the firmware onto your Flipper.

Installing Xtreme Firmware

  1. Visit the GitHub Repo: Navigate to github.com/Flipper-XFW/Xtreme-Firmware. Locate the latest release.

  2. Web Updater: Click 'Web Updater', similar to the Unleashed process which will take you to flipper-xtre.me/update. The updater will detect your connected Flipper Zero.

  3. Select and Install: Choose the latest version of Xtreme firmware and hit 'Flash'. The firmware will be downloaded and installed on your device.

Final Thoughts

Installing custom firmware on your Flipper Zero is straightforward and immensely rewarding. Whether you go with Unleashed or Xtreme, you’ll unlock new capabilities that the official firmware doesn’t offer. Until next time, stay safe and happy hacking! Disclaimer: This blog post is strictly for educational purposes, emphasizing ETHICAL and LEGAL hacking only. I do not, and will NEVER, condone the act of illegally hacking into computer systems and networks for any reason. My goal is to foster cybersecurity awareness and responsible digital behavior. Please behave responsibly and adhere to legal and ethical standards in your use of this information.

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