User Manual

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.
Replace a CRU
Follow the replacement procedure to replace a CRU.
Base cover assembly
Prerequisite
Before you start, read Appendix A “Important safety information” on page 69 and print the following
instructions.
Note: When your computer is connected to ac power, do not remove the base cover assembly. Otherwise,
there might be a risk of short circuits.
Replacement procedure
1. Disable the built-in battery. See “Disable Fast Startup and the built-in battery” on page 51.
2. Turn off the computer and disconnect the computer from ac power and all connected cables.
3. Close the computer display and turn over the computer.
4. Loosen the screws that secure the base cover assembly
1 . Then, pry up the latches and remove the
base cover assembly
2 .
52 L13, L13 Yoga, S2 5th Gen and S2 Yoga 5th Gen User Guide