How to Open the Left Handle of the Backbone One

Use a Phillips screwdriver to remove the four 5.9 mm-long screws.

Lift up the upper part of the controller.

Swing over the upper cover and place it on the controller case.

Use a pair of tweezers to remove the yellow protective tape which is placed over the interconnect cable connector.

Use the tip of an opening pick to open the gray flap of the ZIF connector by pushing it upwards.

Use your fingers to disconnect the interconnect cable from its connector.

Remove the upper half of the left controller assembly.