Step 1 - Adjust the heatbed position
In the startup state, control the movement of the heatbed through the display screen, and place the heatbed at a height of about 2/3 of the way up. Then turn off the printer, disconnect the power cord, and remove the glass top cover. You can also place the printer on its side while it is turned off, and then pull the Z-axis belt to raise the heatbed to a height of about 2/3 of the way up.

Step 2 - Remove the rear cover screws
NOTE: There are a lot of screws involved in this procedure. Please label them and group them in separate sections to avoid issues.
Remove the 10 screws and 4 screws from the rear cover shown in the picture. There are 2 types of screws, so keep them separate and remember which ones go where.

Step 3 - Remove the rear panel
To remove the rear cover, it is important to first pull the right side so that the right belt tension port doesn't get in the way, followed by the right side. Push the PTFE tube outlet inward to free it from the cover.

Step 4 - Remove the excess chute
As shown in the figure below, remove 1 silver screw with an H2.0 hex key, remove 2 black screws with an H1.5 hex key, and then remove the excess chute.

Step 5 - Remove the cable railing
Remove the 2 screws with an H2.0 hex key, and then remove the cable railing

Step 6 - Disconnect the heatbed signal cable
It is recommended to remove some silicone glue from the connector (use tweezers or a hair dryer to heat it, but do not use a heat gun), and then disconnect the signal cable of the heatbed. If the connecting cables of MC-AC are glued together by silicone, you can disconnect them together.

Step 7 - Pull out the signal cable from the cable mesh
Carefully tear off the tape at both ends of the mesh, and then pull out the signal cable.

Step 8 - Remove the holding plate
Unscrew 2 screws and remove the holding plate.

Step 9 - Remove the heat bed
Use the H2.0 hex key to carefully loosen the six screws that hold the heatbed in place and lift it away from the Z-sliders. And then turn it over and place it on the bottom base.

Step 10 - Remove the leveling nuts
Remove the 3 leveling nuts and rubbers, and remove the ground cable fixing screw.

Step 11 - Open the heat bed bracket
Flip from left to right to open the heat bed bracket, note that there is a 2PIN cable connecting on the board, do not damage it.

Step 12 - Remove the heat bed signal cable
Clean the silicone glue on the heatbed signal cable connector, disconnect it, and then remove the heatbed signal cable.