Lenovo ThinkPad A285, User Manual, Page: 114 / 152

1. Insert a straightened paper clip into the hole in the tray 1 . The tray ejects. Then, slide the tray out of the
tablet. If a microSD card is installed, gently take the microSD card out of the tray 2 .
2. Install a new microSD card into the tray with the metal contacts facing downward 3 . Insert the tray into
the nano-SIM-card and microSD card slot until you hear a click
4
. Ensure that the new microSD card is
installed in correct orientation.
Replacing the base cover assembly
Before you start, read “Important safety information” on page v and print the following instructions.
Notes:
• Depending on the model, your computer might look slightly different from the illustrations in this topic.
• There might be a risk of short circuits if you remove the base cover assembly when your computer is
connected to ac power. Besides, the computer will not start after you reinstall the base cover assembly.
To start the computer, disconnect the ac power adapter and then reconnect it to the computer.
To replace the base cover assembly, do the following:
1. Disable the built-in battery. See “Disabling the built-in battery” on page 94.
2. Ensure that the computer is turned off and disconnected from ac power and all cables.
3. Close the computer display and turn the computer over.
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A285 User Guide