Replacing The Bluetooth Module - Lenovo IdeaCentre B520e Hardware Maintenance Manual

Step 4. Remove the 4 screws that secure the hard disk drive to the disk bay and slide the defective hard
disk drive out of the bay.
Step 5. Install the new hard disk drive as follows:
a. Slide the new hard disk drive into the drive bay.
b. Secure the new hard disk drive to the drive bay using the 4 screws.
Step 6. Slide the hard disk drive bay back into position.
Step 7. Secure the hard disk drive bay to the chassis with the remaining screw.
Step 8. Slide the computer cover back into position.

Replacing the bluetooth module

Attention: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover.
Note: It may be helpful to place the computer face-down on a soft flat surface for this procedure. Lenovo
recommends that you use a blanket, towel, or other soft cloth to protect the computer screen from scratches
or other damage.
To replace the bluetooth module:
Step 1. Remove the computer cover. Refer to "Removing the computer cover".
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IdeaCentre B520e Hardware Maintenance Manual