Lenovo Yoga Book YB1-X91L Hardware Maintenance Manual page 38

Lenovo YOGA BOOK with Windows® Hardware Maintenance Manual
Figure 4. Removal steps of A‐cover And Hinge (continued)
Use the card pin to remove the card slot.
Use a screwdriver to remove the 4 black screws on the card slot bracket, and
remove the USB‐SD‐Frame.
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Step Screw (quantity)
M1.4X2.5 (4)
1
Color Torque
Black 0.7N