48Lenovo ideapad 2in1 14 Hardware Maintenance Manual1110 Upper caseFor access, remove these FRUs in order:• “1010 Base cover” on page 31• “1020 Battery pack” on page 33• “1030 Solid state disk” on page 34• “1040 Hard disk drive” on page 35• “1050 PCI Express Mini Card for wireless LAN” on page 36• “1060 Speakers” on page 38• “1080 Fan and Heat Sink assembly” on page 41• “1090 IO board” on page 44• “1100 System board” on page 46Figure 11. Removal steps of upper caseRemove the screws 1.1111Step Screw (quantity) Color Torque1 M2.5 × 4.0 mm, Phillips-head, nylok-coated (4)HINGE BRK TO UPPERSilver 1.5-2.0 kgf*cm