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
a
b
70
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