Lenovo ThinkCentre M70t Hardware Maintenance Manual page 89

2. Remove the front bezel. See "Front bezel" on page 61.
3. Remove the drive bay assembly. See "Drive bay assembly" on page 64.
4. Pull out the stopper, and remove the Wi-Fi card from the M.2 Wi-Fi card slot.
5. Remove the Wi-Fi card shield.
6. Disconnect the Wi-Fi antenna cables from the Wi-Fi card.
7. Connect the Wi-Fi antenna cables to the Wi-Fi card.
8. Install the Wi-Fi card shield.
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Chapter 6 Hardware removal and installation