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Main Board Notes

Power Indicator Light​

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  • When powered only via TYPE-C without connecting other main board power, at least two lights should be on: 3.3V and 5V
  • After connecting the main board power, the main board power indicator should show 3.3V, 5V, and 12V
  • The power indicator light at the bottom left of the main board will only illuminate normally after the driver power 0-2, driver power 3-7, and heated bed power are connected

Troubleshooting​

Note
  • When no external devices are connected (such as drivers, endstops, 12864, etc.)
  • With only TYPE-C power supply, at least the 3.3V and 5V LEDs should be constantly lit
  • If 3.3V and 5V are not lit, check the main board 5V jumper
  • If the issue persists after replacing the jumper and the Type-C power supply is confirmed to be normal, contact customer service for after-sales support
  • If one of the 3.3V or 5V lights is flickering, it indicates a chip short circuit, requiring contact with customer service for after-sales support
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Drivers​

  • Driver power can use 48V, but all drivers must use 48V simultaneously
  • The main board supports external drivers Wiring and Configuration Guide

Endstop Ports​

  • If endstop ports are not functioning, you can replace the endstop port or cut off the driver's endless stop pin
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Firmware Flashing​

  • The main board uses a TF card for flashing
  • Previously, DFU was used for flashing due to tutorial issues; to update the firmware, you need to reflash BL
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