1180 Rear-Facing Camera Module; 1190 Wireless-Wan Antenna Assembly - Lenovo ThinkPad Helix 20CG Hardware Maintenance Manual

1180 Rear-facing camera module

Before you replace the rear-facing camera module, do the following:
1. Disable the built-in battery. See "Disabling the built-in battery" on page 46.
2. Remove the SIM card, SD card, and smart card. See "Removing the SIM card, SD card, and smart
card" on page 46.
3. Remove the following FRUs:
• "1010 Back cover assembly, smart-card reader, and smart-card-reader cable" on page 48
• "1030 Built-in battery" on page 53
• "1040 Wireless WAN card" on page 54
• "1050 M.2 solid-state drive and solid-state-drive mylar" on page 56
• "1060 Fingerprint-reader module" on page 57
• "1100 NFC card and NFC-card cable" on page 61
• "1130 Thermal module" on page 65
• "1140 USB-connector bracket" on page 67
• "1170 System board" on page 71
Removal step of the rear-facing camera module
When installing: Ensure that the connector is attached firmly.

1190 Wireless-WAN antenna assembly

Before you replace the system board, do the following:
1. Disable the built-in battery. See "Disabling the built-in battery" on page 46.
2. Remove the SIM card, SD card, and smart card. See "Removing the SIM card, SD card, and smart
card" on page 46.
3. Remove the following FRUs:
• "1010 Back cover assembly, smart-card reader, and smart-card-reader cable" on page 48
• "1030 Built-in battery" on page 53
• "1040 Wireless WAN card" on page 54
• "1050 M.2 solid-state drive and solid-state-drive mylar" on page 56
• "1060 Fingerprint-reader module" on page 57
• "1100 NFC card and NFC-card cable" on page 61
.
Chapter 7 Removing or replacing a FRU
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