BetaFPV ELRS USB Recovery Dongle

USB Recovery BetaFPV Dongle ELRS

The BetaFPV ExpressLRS Recovery Dongle is a practical FTDI USB-to-TTL module built around the CP2102 bridge controller, designed for flashing and recovering firmware on ESP32 and ESP8XX-based devices. It’s an essential tool for hobby pilots and FPV builders who need a reliable way to restore an ELRS receiver after a failed update, especially when standard UART flashing no longer works.

Compatible with a wide range of ExpressLRS hardware, including the ELRS Lite Receiver, ELRS Nano Receiver, ELRS Micro Receiver, and even FPV goggle backpacks, this dongle makes recovery and manual flashing much easier. Thanks to its solder-free spring pin design, it’s quick to use and perfect for the workbench or field kit.

Key Features

• Recover bricked ELRS receivers after a failed firmware update, including cases where the bootloader is missing.
• No soldering required thanks to built-in spring-loaded pins for fast and convenient connection.
• Durable protective housing makes the dongle more portable and robust than open-board alternatives.
• USB Type-C connection for easy connection to modern computers.
• Wide compatibility with Windows, Mac, and Linux systems.
• Ideal for ExpressLRS hobbyists who want a reliable backup method for firmware flashing and receiver recovery.

Specifications

• USB interface: USB Type-C plug
• Operating voltage: 5V
• Logic voltage: 5V
• 3.3V power output current: 400mA
• Pin output method: 2*4P-2.54mm connector
• Serial baud rate: Up to 921600bps
• USB support: USB 1.1 and USB 2.0
• USB-to-serial chip: CP2102
• Supported systems: Windows XP, Windows 7, Windows 8, Windows 10, Windows 11, Linux, and Mac

Why Choose the ExpressLRS Recovery Dongle?

This FTDI recovery module is mainly used to repair an ELRS receiver after an unsuccessful update via WiFi or passthrough, but it also provides a convenient UART flashing method for updating compatible ELRS receivers and backpacks. The spring pin interface and included connector make the process easier and cleaner, especially for users who want to avoid soldering.

Its compact enclosure also adds extra durability, making it a smart addition to any FPV toolkit. Whether you are troubleshooting a failed firmware flash or just want a dependable wired update method, this dongle is a simple and effective solution.

Connection Diagram

The diagram below shows the wiring reference for the ExpressLRS Recovery Dongle, helping you connect compatible receivers quickly and correctly.

Helpful Resources

To learn how to use the ExpressLRS Recovery Dongle, check the support guide linked below. Please note that Windows requires drivers, while Mac and Linux typically do not.

How to use the ExpressLRS Recovery Dongle

Windows drivers

You can also watch the video below for a quick walkthrough of firmware flashing via FTDI.

Note: A USB Type-C cable is not included in the package, so make sure you have one available before use.

Recommended Receivers

• ELRS Lite Receiver
• ELRS Nano Receiver
• ELRS Micro Receiver
• Other ELRS receivers based on ESP32 and ESP8XX chips

What’s in the Box?

• 1 x ExpressLRS Recovery Dongle
• 1 x 4-pin cable
• 1 x probe converter board