Lenovo IdeaPad U300e - Manual (Page 106)

2. Close the computer display, and turn the computer over.
3. Remove the keyboard. For more details, refer to “Replacing the keyboard” on page 78.
4. Detach the connector and then remove the backup battery.
5. Position the new backup battery in place, then attach the connector.
6. Reinstall the keyboard. For more details, refer to “Replacing the keyboard” on page 78.
7. Turn the computer over again. Connect the ac power adapter and cables to the computer.
Replacing the SIM card
Your computer may require a SIM (Subscriber Identification Module) card to establish a wireless WAN (Wide
Area Network) connection. Depending on the country of delivery, the SIM card may be already installed in
your computer or will be part of the shipping contents that came with your computer.
Note: The SIM card is identified by the IC chip mounted on one side of the card.
To replace the SIM card, do the following:
90 User Guide