Guides
HP ProBook 4540s Keyboard Replacement
Removing the keyboard will require removing the...
HP ProBook 4540s Battery Replacement
Replacing the battery is a very simple process...
HP ProBook 4540s Fan Replacement
This guide will show how to safely remove the...
HP ProBook 4540s WLAN Module Replacement
The WLAN module is used to power the Wi-Fi on...
HP ProBook 4540s Optical Drive Replacement
This guide will help you replace the optical...
HP ProBook 4540s Back Door Replacement
Removing the bottom door is necessary to reach...
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