HP Probook 4540s BIOS Chip Replacement

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Disconnect the display cable by pinching the attached black tab and pulling it straight up.
Disconnect the power cable by pinching the cable firmly and pulling away from the connector.
Disconnect the battery connector cable by pinching the cable firmly and pulling away from the connector.
The system board can be removed from the back cover of the computer to access the power and battery connector cables more easily. (refer to the third picture)

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