1. Product Overview
The FlipMods Ultra V3 by Sacred Labs is an 18-pin development board designed to connect to the GPIO (General Purpose Input/Output) pins on top of the Flipper Zero device. This board integrates an ESP32-WROOM-32UE chip, a CC1101 module for Sub-GHz communication, and an NRF24 module for Sniffer applications, offering versatile wireless capabilities. It features a USB-C port for firmware updates and a micro SD card slot for data storage and the Marauder application.
The board is designed to sit flat on top of the Flipper Zero, providing a sturdy feel and sleek appearance.

Image 1.1: The FlipMods Ultra V3 board securely attached to a Flipper Zero, illustrating its integrated design.
2. What's in the Box
- FlipMods Ultra V3 Development Board
- 2x 2.4 GHz Antennas
- 1x 433MHz Antenna

Image 2.1: The FlipMods Ultra V3 board and its accompanying antennas.
3. Setup Instructions
3.1 Physical Connection to Flipper Zero
- Ensure your Flipper Zero device is powered off before connecting the Ultra V3 board.
- Align the 18-pin connector of the Ultra V3 board with the GPIO pins on the top of your Flipper Zero.
- Gently press the board down until it is securely seated. The board should sit flat and feel sturdy.

Image 3.1: Proper alignment and connection of the Ultra V3 board to the Flipper Zero.
3.2 Antenna Installation
The Ultra V3 board includes two 2.4GHz antennas and one 433MHz antenna. These are crucial for optimal performance of the WiFi, NRF24, and Sub-GHz functionalities, respectively. Always ensure antennas are attached before powering on the device.
- Connect the two 2.4GHz antennas to the SMA jacks labeled '2.4G' on the board. These are typically the longer, adjustable antennas.
- Connect the 433MHz antenna to the SMA jack labeled '433MHz'. This is usually the shorter, angled antenna.

Image 3.2: Antennas correctly installed on the Ultra V3 board, with module labels.
3.3 Micro SD Card Preparation
The micro SD card slot is used for the Marauder application and for storing data collected during information gathering. Proper preparation is essential:
- Use an SD card with a capacity of 32GB or less.
- Format the SD card to FAT32 file system.
- Note that some SD card brands may not be compatible with Marauder. Research compatible brands if you encounter issues.
3.4 Firmware Flashing
The ESP32-WROOM-32UE chip on the Ultra V3 board comes pre-loaded with Marauder firmware. However, you may need to update or re-flash the firmware. Unofficial firmware on the Flipper Zero is recommended for full functionality with this board.
The USB-C port on the board is used for uploading or updating firmware.
Video 3.1: Tutorial on how to flash Marauder firmware to a WiFi Dev Board.
Video 3.2: Guide on how to run Marauder on the Flipper Zero WiFi Dev Board.
4. Operating Instructions
4.1 Module Selection
The Ultra V3 board allows you to select between the NRF24 and CC1101 modules using a physical switch. The ESP32 module remains active as long as the board receives power.
- Locate the switch on the left side of the board.
- Toggle the switch to select either the CC1101 for Sub-GHz purposes or the NRF24 for Sniffer applications.
- Ensure the switch is set to your desired module before turning on the Flipper Zero.
4.2 Using the Marauder Application
Once the Marauder firmware is loaded and the SD card is prepared, you can access the Marauder application through your Flipper Zero. This application enables advanced wireless capabilities.
Video 4.1: Demonstration of how to use a 5G WiFi module with Flipper Zero, including scanning WiFi networks.
5. Maintenance
5.1 Firmware Updates
Firmware updates for the ESP32 chip can be performed via the USB-C port on the Ultra V3 board. Refer to the specific Marauder firmware documentation for detailed update procedures.
6. Troubleshooting
- Device Not Responding: Ensure the Flipper Zero was powered off before connecting the Ultra V3 board.
- Module Not Functioning: Verify that the NRF24/CC1101 selection switch is set correctly before powering on the Flipper Zero.
- SD Card Issues: Confirm the micro SD card is 32GB or less and formatted to FAT32. Incompatible brands can also cause issues.
- Antenna Issues: Always ensure all antennas are securely attached before operating the device to prevent damage and ensure proper functionality.
7. Specifications
| Feature | Detail |
|---|---|
| Brand | Sacred Labs |
| Model Name | FlipMods Ultra V3 |
| Processor Brand | Espressif (ESP32-WROOM-32UE) |
| Wireless Type | 802.11n (WiFi), NRF24, Sub-GHz (CC1101) |
| Connectivity Technology | 802.11 N, Subghz, NRF24, USB-C |
| Operating System | Linux (for Flipper Zero interaction) |
| Item Weight | 3.7 ounces |
| Product Dimensions | 3.65 x 1.56 x 0.8 inches |
| Included Components | FlipMods Ultra V3, 2x 2.4 GHz Antennas, 1x 433MHz Antenna |
8. Safety Information
This device is intended for educational purposes only. Users must take full responsibility for understanding and complying with all applicable local, national, and international laws and regulations regarding its use.