Next steps
1. Install the base cover.
2. Exit Service Mode.
3. Follow the procedure in After working inside your computer.
I/O board
Removing the I/O board
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Enter Service Mode.
3. Remove the base cover.
About this task
The following image(s) indicate the location of the I/O board and provides a visual representation of the removal procedure.
Steps
1. Remove the two screws (M2.5x4) that secure the left-display hinge to the I/O board.
2. Pry open the left-display hinge at an angle of 90 degrees.
3. Lift the I/O-board cable-connector latch and disconnect the I/O-board cable from the I/O board.
4. Lift the power-button with fingerprint-reader cable-connector latch and disconnect the power-button with fingerprint-
reader cable from the I/O board.
NOTE: This step is only applicable for computers shipped with the optional fingerprint reader.
5. Remove the screw (M2x3) that secures the I/O board to the palm-rest and keyboard assembly.
6. Disconnect the coin-cell battery cable from the I/O board.
7. Lift the I/O board off the palm-rest and keyboard assembly.
Removing and installing components
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