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Katapult Firmware

Tip
  • Note that the factory has pre-flashed katapult, so no need to flash it again.

Entering Flash Mode​

Tip

The circled item is the BOOT button

  • To enter flash mode, ensure the motherboard is completely powered off. Press and hold the BOOT button, then connect a data cable with data transmission capability to the motherboard on one end and your device on the other.
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Flashing Firmware​

  • Micro4 Katapult firmware
  • You can obtain the firmware via the following link:
Please note

The zip archive must be extracted before use.

  • Alternatively, download the complete repository via git (ensure the host machine has internet access):

  • For general systems

    cd && git clone https://cnb.cool/3dmellow/FLY-Firmware.git

  • For FLY host machine

    git clone https://cnb.cool/3dmellow/FLY-Firmware.git /data/FLY-Firmware
    ln -s /data/FLY-Firmware /root/FLY-Firmware

  • If the firmware package has already been downloaded, it is recommended to update to the latest version before proceeding:

    cd ~/FLY-Firmware && git pull
  • The previous repository is no longer maintained. To delete it, execute: 
    rm -rf ~/FLY_Katapult /root/FLY_Katapult
  • The firmware is located at
FLY-Firmware/MainBoard/Mico/
  • Prepare a data cable with data transfer functionality
  • Download the firmware to the computer
  • Connect the BOOT jumper, or press and hold the BOOT button before connecting to the computer. The RPI-RP2 disk will then appear
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  • Remove the BOOT jumper or release the button!!!
  • Copy the firmware to be flashed into it. Please note that only firmware with the UF2 extension can be used!!! (Do not modify the file extension, as this is ineffective)
  • Reference
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  • After the firmware is copied in, the RPI-RP2 disk will automatically disappear, indicating the firmware flashing is complete!
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