Before Servicing The Computer; Disabling The Built-In Battery; Removing The Nano-Sim-Card And Microsd Card Tray, Nano-Sim-Card, And Microsd Card - Lenovo THINKPAD X1 Tablet Gen 3 Hardware Maintenance Manual

Before servicing the computer

Before you service this computer, do the following:
1. Disable the built-in battery. See "Disabling the built-in battery" on page 54.
2. Remove the nano-SIM-card and microSD card. See "Removing the Nano-SIM-card and microSD card
tray, nano-SIM-card, and microSD card" on page 54.

Disabling the built-in battery

Before replacing any FRU, ensure that you disable Fast Startup first and then disable the built-in battery.
To disable Fast Startup, do the following:
1. Go to Control Panel, and then change the view of Control Panel from Category to Large icons or Small
icons.
2. Click Power Options, and then click Change what the power buttons do on the left pane.
3. Click Change settings that are currently unavailable at the top.
4. If prompted by User Account Control (UAC), click Yes.
5. Clear the Turn on fast startup check box, and then click Save changes.
To disable the built-in battery, do the following:
1. Restart your computer. When the logo screen is displayed, immediately press F1 to enter ThinkPad
Setup.
2. Select Config ➙ Power. The Power submenu is displayed.
3. Select Disable built-in battery and press Enter.
4. Select Yes in the Setup Confirmation window. The built-in battery is disabled and the computer turns off
automatically. Wait three to five minutes to let the computer cool.
Removing the Nano-SIM-card and microSD card tray, nano-SIM-card,
and microSD card
Remove the following items before you service the computer:
• Nano-SIM-card and microSD card tray
• Nano-SIM-card (on some models)
• MicroSD card (on some models)
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X1 Tablet Gen 3 Hardware Maintenance Manual