What tools do I need to perform hardware removal and replacement on the ProBook 4540s?
You will need a flat-bladed screwdriver, Phillips P0 and P1 screwdrivers, and a Torx T8 screwdriver to complete removal and replacement procedures. The manual also notes there are as many as 95 screws and screw locks in 15 different sizes that may need to be removed, replaced, or loosened during servicing. (Page 36)
From the official HP Probook 4540s Notebook PC manual, page 36
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