Note: In models with the fingerprint reader, the sensor is attached to the palm rest FRU. If the fingerprint reader has any defects, you can replace it by the procedures given in this section, which are the same for a palm rest with or without a fingerprint reader.
Please perform the following steps as shown in the pictures below.
Note: Step  is only for models with the fingerprint reader. For models without the fingerprint reader, skip step .
Palm rest installation
In models with the fingerprint reader, attach the fingerprint reader connector firmly to the system board.
Press the left and right top edges of the palm rest to fit it into place.
Push the front side of the palm rest until it clicks into place.
Close the LCD cover and turn the computer over. Then fasten the five screws to secure the palm rest.