Removing The Nano-Sim-Card And Microsd-Card Tray; 1010 Keyboard (For Thinkpad X390 Only) - Lenovo ThinkPad T490s Hardware Maintenance Manual

5. Clear the Turn on fast startup check box, and then click Save changes.
To disable the built-in battery:
1. Restart your computer. When the logo screen is displayed, immediately press F1 to enter the UEFI BIOS
menu.
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

Note: If the computer you are servicing has a nano-SIM card or microSD card installed, remove the card
with the tray together.

1010 Keyboard (for ThinkPad X390 only)

Removal steps
Note: If the keyboard must be removed to access other FRUs, you need the keyboard removal tool (product
part number: 01LX856) to remove the keyboard. You can purchase the tool as a separate FRU at
support.lenovo.com/partslookup
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