How to replace Creality Hi Mainboard

Created by DREMC STORE, Modified on Fri, 23 Jan at 9:17 PM by DREMC STORE

TABLE OF CONTENTS

Wiring Diagram
Spare Parts:
Install Video:
Written Guide:

Note:

Strong Yellow Glue: Many connectors on the mainboard are secured with strong yellow adhesive. You may need to carefully cut or gently loosen the glue to release the connectors use some 99% iso alcohol onto the glue too loosen connections. Avoid pulling or forcing them, as this can damage both the connectors and the mainboard.

Wiring Diagram

24V DC IN
Z1 Motor
Z Motor
Limit Switch Z1
Limit Switch Z
Y Limit Switch
Wifi Antenna
Screen
X Motor
Y Motor
Nozzle Cable
RS232 Bed Communication
ADC BED
RFID
Bed Power
Bed to AC Cable

Spare Parts:

Spare Part: https://store.dremc.com.au/products/creality-hi-motherboard-kit

Install Video:

Written Guide:

Source: https://3dprima.freshdesk.com/en/support/solutions/articles/6000278131-creality-hi-mainboard-replacement

Tools needed

2.5mm Flat Head Driver
2mm Hex Driver or Hex Key
Nippers (for cutting through glue if needed or iso alcohol)

Step 1. Power Safety:

Before starting, ensure the machine is completely powered off and the power cable is disconnected from the printer.

Step 2. Remove the Bottom Panel

Using your 2mm Hex Driver, unscrew the nine screws securing the bottom panel to the chassis. Remove the panel and set it aside. Take care of the electronics fan.

Step 3. Disconnect the Cables on the Mainboard

Begin by loosening the 24V DC terminal block screws to release the power wires.

Next, disconnect all remaining cables connected to the mainboard.

⚠️ Note:
Most connectors are glued in place. Carefully cut or peel away the glue before unplugging. Use nippers and a flat head driver to cut or peel the glue, or use some 99% iso alcohol to loosen the glue.

Step 4. Unscrew the Mainboard from the Chassis

Using your 2mm Hex Driver, unscrew the four screws mounting the mainboard to the chassis.

Step 5. Remove and Transfer the Thermal Pad

Flip the old mainboard over and remove the thermal pad from the back. Attach this thermal pad to the same position on your new mainboard before installation.

Step 6. Install the New Main board

Place the new mainboard in position and secure it using the four screws with your 2mm Hex Driver.

Step 7. Reconnect All Cable to the Mainboard

Carefully reconnect all the cables to the new mainboard, ensuring each connection is secure and fully seated.

Refer to the Wiring Diagram below if you’re unsure about cable placement.

Step 8. Reattach the Bottom Panel

Reinstall the bottom panel and secure it using the nine screws with your 2mm Hex Driver.