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Fly Upper Computer Installation and Usage Guide

I. Preparation​

1. Power Requirements​

  • Power Supply Standard: Must use an independent power adapter of 5V / 2A or higher
  • Prohibited Actions: Except for the specific models listed below, power supply through the 3D printer motherboard interface is strictly prohibited
    • ✅ Models supporting motherboard power supply: C8, GEMINI, C5, C5V1.1, C8P
  • Risk Warning: Insufficient power will cause unstable device operation, frequent restarts, and may lead to hardware damage over time

2. Storage Media Selection​

Storage TypeApplicable DevicesKey Instructions
TF CardCompatible with all seriesUniversal solution, requires a standard card reader
M2WE Solid State CardNon-Lite/MINI-PAD seriesDedicated solution, must use the M2SD programmer

TF Card Specification Recommendations:

  • Capacity: 16GB-128GB (32GB/64GB recommended)
  • Speed Class: Class 10 or U1/U3
  • Recommended Brands: SanDisk, Samsung, and other well-known brands

3. Programming Tool Preparation​

  • TF Card: Standard TF card reader
  • M2WE Card: Dedicated M2SD programmer (required)

4. System Image Matching​

Select the corresponding system image based on the device's main control chip:

Main Control ChipApplicable Device Models
H618C8P, C5, C5-V1.1, PI-V3
H5PI, PI-V2, GEMINI series, C8
H3Lite2 series, MINI-PAD series

Image Download: FlyOS System Image Download Site

5. Supporting Resources​

  • Hardware: Type-C cable supporting data transfer
  • Software Toolkit: Includes terminal tools, drivers, formatting tools, etc.
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II. System Installation Process​

  • As the tutorial is lengthy, please refer to the link below
  • System Flashing

III. Device Startup and Connection​

  • SSH Connection Tutorial

1. Hardware Connection​

  • Insert the storage card with the system flashed
  • Connect the independent power adapter
  • Connect the computer using a Type-C data cable

2. Serial Terminal Configuration​

  • Launch MobaXterm software
  • Create a new Serial session
  • Select the CH340 serial port, Baud rate 115200

3. System Startup Verification​

  • Observe the terminal log output after powering on
  • Normal startup will display system operation information
  • Try pressing the Enter key to wake up if there is no output

4. Network Configuration​

After the system startup is complete, configure the Wi-Fi connection via the command line

  • Network Connection Tutorial

IV. Common Issues and Maintenance Guide​

Startup Priority​

  • Issue: Startup order when both a TF card and an M2WE card are inserted simultaneously
  • Explanation: The system always prioritizes booting from the TF card, but this does not affect the normal use of the M2WE card's WiFi function after startup
  • Solution: It is recommended to use only one system card at a time for daily use to avoid confusion

Storage Card Selection​

  • Issue: How beginners should choose the type of storage card
  • Solution:
    • Recommended Solution: TF card (strong versatility, low cost, suitable for beginners)
    • Important Reminder: Using a TF card requires additional configuration of a Linux driverless WiFi module
    • Alternative Solution: The M2WE card comes with built-in WiFi function but requires a dedicated programmer

M2WE Card Contact Issues​

  • Issue: M2WE card recognition is unstable or fails to boot
  • Solution:
    • Temporary Solution: Use a rubber band to strengthen the connection between the card body and the slot
    • Permanent Solution: Install dedicated fixing components
    • Fixing components download address:
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Device Maintenance Guide​

1. Shutdown Procedure

  • Always perform a normal shutdown via system commands
  • Do not directly disconnect the power to prevent system damage

2. System Updates

  • The system supports two update methods:
    1. Online Update: Completed automatically in the system background.
    2. Manual Update: Download the update package locally, then upload and install it through the system interface.
  • Please note that the traditional FAST system full-flash upgrade method remains applicable.

3. Configuration Backup

  • Regularly back up the printer configuration files to a local storage device
  • Avoid configuration loss due to system issues

4. Power Management

  • Must use an independent power supply
  • Avoid power interference affecting stable device operation

5. Storage Card Protection

  • Do not format the storage card again after the system flash is complete
  • Prevent system file corruption that could cause the device to fail to boot

OTA Update Instructions​

1. How to Perform an OTA Update

  • Access your upper computer's IP address in a browser, appending the port number :9998 to access the OTA update interface.
    • Example: If your upper computer's IP is 192.168.1.100, visit http://192.168.1.100:9998

2. Configuration File Safety

  • The OTA update is specially designed not to overwrite or modify your personal configuration files

3. Precautions During the Update Process

  • Ensure stable power supply to the device during the update
  • Unexpected power loss will cause the update to fail; in severe cases, the system may need to be re-flashed

4. Custom Code Handling

  • If you have modified Klipper configuration files or installed custom plugins
  • The OTA update will automatically skip the relevant files to ensure your modifications are preserved

5. Important Reminder: Firmware Update

  • After each OTA update is complete, you must manually compile the Klipper firmware and then re-flash the lower computer firmware
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