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How to update firmware for Siyi FR Mini receiver

CoreWingAbout 2 minRemote ControlELRS固件更新SiyiFR Mini接收机Passthrough

I. Via passthrough

  1. Ensure you have correctly completed receiver wiring and your flight controller is configured. Additionally, ensure the bootloader has been flashed to the R9 receiver (if applicable).

Important

This is an important step to ensure a successful update. If you have not completed these operations, please go back.

  1. Disconnect and close your FC Configurator application (Betaflight Configurator, INAV Configurator, etc.).
  • If your receiver only powers on via USB connected to the flight controller, unplug it. Hold the boot button on the receiver (not the FC), then insert the USB. Release the button when the green and red LEDs are blinking alternately.
  • If your receiver only powers on with a battery connected to the flight controller, unplug it. Then unplug and reinsert the USB data cable into your flight controller. Do not reconnect the battery for now.
  1. Launch ExpressLRS Configurator on your computer, ensure the Official Releases tab is active, and select the Released version to flash to the RX module.
    image.png
  2. Select the Device Category and Device target that match your hardware.
  • Device Category: SIYI 2.4 GHz
  • Device: SIYI FM30 Mini 2.4GHz RX
    image.png
  1. Set the Flashing Method to BetaflightPassthrough
    image.png
  2. Set the firmware options for the device.
  • Regulatory Domain (Required, select the domain appropriate for your location or country)
  • Bind Phrase (Optional but highly recommended. Note this phrase as it should be the same on your other devices, otherwise they will not bind or sync)
  • Local WiFi Network Credentials (Optional. Will be used when the device enters WiFi mode next time).
    image.png
  1. Click the Flash button.
    image.png
  2. Wait for the process to complete. A green success bar will appear in ExpressLRS Configurator.
    image.png
  3. After a few seconds, the LED on the receiver should return to slow blink LED mode.
    LEDSEQ_DISCONNECTED
  1. Disconnect the receiver from the flight controller.
  2. Connect the receiver to the STLink V2 dongle. Find the CLK, DIO, 3v3, and Gnd pads and connect them to the corresponding pins on the dongle.

Important

VDD is only 3.3v! Do not connect 5v here!

image.png
Connection completion diagram:
image.png
3. Launch ExpressLRS Configurator on your computer, ensure the Official Releases tab is active, and select the Released version to flash to the RX module.
image.png
4. Select the Device Category and Device target that match your hardware.

  • Device Category: SIYI 2.4 GHz
  • Device: SIYI FM30 Mini 2.4GHz RX
    image.png
  1. Set the Flashing Method to STLink
    image.png
  2. Set the firmware options for the device.
  • Regulatory Domain (Required, select the domain appropriate for your location or country)
  • Bind Phrase (Optional but highly recommended. Note this phrase as it should be the same on your other devices, otherwise they will not bind or sync)
  • Local WiFi Network Credentials (Optional. Will be used when the device enters WiFi mode next time).
    image.png
  1. Click the Flash button.
    image.png
  2. Wait for the process to complete. A green success bar will appear in ExpressLRS Configurator.
    image.png
  3. After a few seconds, the LED on the receiver should return to slow blink LED mode.
    LEDSEQ_DISCONNECTED
  4. Reconnect the receiver to the flight controller.
    image.png
    ———— This article is referenced from ExpressLRS Getting Started: https://www.expresslrs.org/quick-start/receivers/siyiFRmini/#flashingupdating-your-receiver-firmware
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