Lenovo IdeaPad 3 Series Hardware Maintenance Manual page 66

"Remove the lower case" on page 32
"Remove the storage drive" on page 35
"Remove the battery pack" on page 38
"Remove the memory module" on page 33
"Remove the heatsink" on page 43
"Remove the system fan" on page 46
"Remove the coin-cell battery" on page 55
"Remove the Wi-Fi card" on page 49
Step 1. Disconnect cables connected to the system board and disconnect the antenna cables from the
wireless module.
Figure 47. Disconnect cables
Step 2. Remove four screws and open the right hinge.
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IdeaPad 3/IdeaPad 3i/IdeaPad Slim 3/IdeaPad Slim 3i series Hardware Maintenance Manual