Remove the MC board
Step 1: Remove the rear panel
Refer to this wiki to remove the printer's rear panel. https://wiki.bambulab.com/en/h2/maintenance/replace-rear-panel

Step 2: Remove the purge chute
Refer to this wiki to remove the purge chute. https://wiki.bambulab.com/en/h2/maintenance/replace-purge-chute

Step 3: Remove the MC board
Remove the bundle of cables from the cable clip to provide space for the subsequent plug removal.
Disconnect all connectors on the front of the MC board. Please note that some plugs use a locking mechanism, and you must unlock the latch before pulling them out. For specific plugs that require unlocking, refer to the component correspondence table in the installation steps.
Additionally, to prevent the plugs from loosening during transportation, the three stepper motor plugs beneath the heatsink are reinforced with electronic silicone. To remove these three plugs, you first need to use a sharp tool, such as tweezers, to make a cut in the silicone around the plug before pulling it out.
Use an H1.5 Allen key to remove the 6 fixing screws and take the MC board out of the lining. Please note that there is also a power input plug for the MC board on the back; do not pull it forcefully.
Disconnect the power plug from the back of the MC board.

Install the MC board
Step 1: Install the MC Board
Insert the power plug into the back of the MC board.
Align the new MC board with the small holes in the lining, then use an H1.5 Allen key to tighten the five screws.
Please ensure that before tightening the screws, you check that there are no plugs being pressed against the MC board from above, below, or on the sides to avoid the need for rework.

Step 2: Install the Purge Chute
Refer to the relevant information about the purge chute to complete the installation.https://wiki.bambulab.com/en/h2/maintenance/replace-purge-chute

Step 3: Install the Rear Panel
Refer to this wiki to install the printer's rear panel. https://wiki.bambulab.com/en/h2/maintenance/replace-rear-panel