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Firmware Download

Serial Firmware Download

  1. Click the download link below to obtain the 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    • The previous repository is no longer maintained.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/Screen/Wiscreen/Wiscreen-7/UART
  2. Download interface reference:

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WiFi Firmware Download

  1. Click the download link below to obtain the 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    • The previous repository is no longer maintained.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/Screen/Wiscreen/Wiscreen-7/WIFI
  2. Download interface reference:

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Firmware Update Steps

Step 1: Prepare the Firmware File

  1. Rename the downloaded firmware file to:

    update.img
  2. Important Notice:

    • If using a TF card/USB drive, ensure the storage device:
      • Has only one partition
      • Is formatted to FAT32 file system

Step 2: Transfer the Firmware File

  1. Copy the renamed update.img file to the root directory of the TF card or USB drive
  2. Insert the storage device into the screen (supports hot-plugging, can be inserted while the screen is on)

Step 3: Perform the Upgrade

  1. Select the corresponding option on the screen interface
  2. Click the "Upgrade" button to start the upgrade
  3. Wait for the upgrade to complete; the screen will automatically restart
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