Flashing Firmware

You can flash or update the firmware using:

  • UART Flash:

    1. Hold the BOOT pin low (bridge to GND) while powering on

    2. Use ELRS Configurator with a USB-to-UART adapter

    3. Select the correct target and flash over UART

  • Wi-Fi Flash:

    1. Power the receiver normally

    2. After ~30 seconds, it enters Wi-Fi update mode

    3. Connect to ExpressLRS RX Wi-Fi network

    4. Access http://10.0.0.1 to upload firmware

Binding

  1. Power the receiver — it enters Bind Mode automatically (RGB LED blinks rapidly)

  2. On the transmitter, open the ELRS Lua script, select Bind

  3. Once bound, the LED will turn solid and telemetry will be active

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