This project provides a simple way to flash firmware onto ESP32-based NetNinja and Feberis boards using the Flipper Zero.

It is designed for makers, hackers, and developers who want to perform firmware updates without special tools or extra hardware – only using the Flipper Zero as a USB-UART bridge and the ESP Web Flasher.

Supported features:

• Flashing firmware to NetNinja / Feberis using Flipper Zero as a bridge
• Full update process via web browser (no drivers or command line required)
• Compatible with ESP32 Marauder firmware builds

In this example, we flash the RogueMaster build RM0329-1941-0.420.0-d161b19 using the Flipper Zero and the ESP Web Flasher.

1. Connect your NetNinja or Feberis board to the Flipper Zero via GPIO/UART.

2. Power on your Flipper Zero.

3. Enter DOWNLOAD mode on the board:

   • Press and hold left button
   • While holding, press right button once
   • Release the left button

4. On the Flipper:

   • Navigate to Apps

   

   • Navigate to GPIO

   

   • Select GPIO with I2C

   

   • Choose USB-UART Bridge

   

5. Connect the Flipper to your computer via USB.

6. Download the firmware (example):
   ESP32_Marauder_FEBERIS_v1_4_1.bin
   (or any compatible .bin file)

7. Open the browser and go to:
   👉 https://esp.huhn.me

8. Click Connect and select your Flipper Zero – it should appear as a serial port (e.g. FlipperZero (COMx) or similar).

9. In the interface, under the 0x10000 field, select the ESP32_Marauder_FEBERIS_v1_4_1.bin file.

   

10. Click Flash to begin the update.

    

    

    

• Communication: UART / USB-C
• Firmware format: .bin
• Power: 5V
• ESP32Marauder_NetNinja repo

• Communication: UART / USB-C
• Firmware format: .bin
• Power: 3.3V / 5V
• ESP32Marauder_FEBERIS repo

This project is licensed under the MIT License – see the LICENSE file for details.

Created by [Nigdzie] – contributions are welcome!