Overview : The Right Side Panel with Glass Window is installed on the right side of the printer (when facing the printer). It features a glass window.

Remove the Left Side Panel
Step 1: Lower the Heatbed
Control the heatbed through the screen and lower it to the bottom of the printer.

Step 2: Remove the Rear Panel
Before removing the left side panel, you need to remove the rear panel first. You can refer to this Wiki to remove the H2D rear panel: https://wiki.bambulab.com/en/h2/maintenance/replace-rear-panel

Step 3: Remove the Front Glass Door/Front Laser Safety Window
Use an H2.0 Allen key to remove the 4 screws (M3x3, nut diameter 10mm) that secure the front door, 2 screws on the top and 2 screws on the bottom, then hold the front glass door with one hand and remove the front door.
Be sure to hold the front glass door with your hand to prevent it from falling.

Step 4: Remove the Auxiliary Part Cooling Fan
You need to remove the auxiliary part cooling fan first because there is a side panel fixing screw behind the auxiliary part cooling fan.
The auxiliary part cooling fan is fixed with soft screws (two in the upper row) and screws (two in the lower row). You can use an H2.0 Allen key to remove the two fixing screws (BT3x16) in the lower row, pull the fan hard to remove the soft screws, and then place the fan on the heatbed without disconnecting the connectors from the MC board. You can also refer to this wiki for detailed steps on removing the auxiliary part cooling fan: https://wiki.bambulab.com/en/h2/maintenance/replace-auxiliary-part-cooling-fan

Step 5: Remove the Left Side Panel Fixing Screws
Use an H2.0 Allen key to remove the two fixing screws (BT3×8) that lock the upper frame and one fixing screw (BT3×8) that locks the beam.
Note: The corresponding holes are reserved on the AP board. The two fixing screws of the upper frame can be removed without removing the AP board. The following figure shows the AP board removed for easy shooting.
Two screws (M3×3) locked on the pillar. These screws are behind the rubber strip. You need to pry open the rubber strip from its opening, and then you can see the screws.

Step 6: Remove the Left Side Panel
In addition to screws, the left side panel is also fixed to the printer with buckles. Before opening the left side panel, please tear off the silicone on the left side panel and loosen the hall connector of the left side panel from the cable buckle of the AC board cable cover to avoid breaking the cable when opening the side panel.
Then you can first open the buckle at the back of the printer;
Then you can use the Allen key to pry open the buckle on the top of the left side panel, pry open the left side panel from the front, disconnect the hall connector of the left side panel, tear off the tape on the left side panel, and then remove the left side panel.
Please note that there is a round silicone plug in the screw hole behind the auxiliary part cooling fan. Be careful when removing the side panel to avoid losing it.

Step 7: Remove the Soft Screws of Auxiliary Part Cooling Fan (Optional)
If your soft screws are not damaged or are long enough to pass through the auxiliary part cooling fan, you can ignore this step and do not need to replace the soft screws.
You can remove the two soft screws from the printer beam by pulling them on the outside.