Dell Latitude E6220 (Mid 2011) - Manual (Page 57)

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Hall Sensor
Removing The Hall Sensor
1. Follow the procedures in Before Working On Your Computer.
2. Remove the secure digital (SD) card.
3. Remove the battery.
4. Remove the base cover.
5. Remove the hard drive.
6. Remove the Bluetooth module.
7. Remove the speakers.
8. Remove the bottom chassis.
9. Remove the screw securing the hall sensor.
10. Remove the hall sensor with its cable.
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